{
  "version": 3,
  "sources": ["../source/website/index.js", "../source/engine/io/externallibs.js", "../source/engine/geometry/geometry.js", "../source/engine/geometry/coord2d.js", "../source/engine/viewer/domutils.js", "../source/engine/model/color.js", "../source/engine/io/bufferutils.js", "../source/website/splitter.js", "../source/website/utils.js", "../source/website/eventhandler.js", "../source/engine/geometry/coord3d.js", "../source/engine/viewer/camera.js", "../source/engine/parameters/parameterlist.js", "../source/engine/io/fileutils.js", "../source/engine/core/taskrunner.js", "../source/engine/import/filelist.js", "../source/engine/geometry/quaternion.js", "../source/engine/geometry/coord4d.js", "../source/engine/geometry/matrix.js", "../source/engine/geometry/transformation.js", "../source/engine/model/material.js", "../source/engine/model/meshutils.js", "../source/engine/geometry/box3d.js", "../source/engine/geometry/octree.js", "../source/engine/model/topology.js", "../source/engine/model/modelutils.js", "../source/engine/model/property.js", "../source/engine/model/object.js", "../source/engine/model/mesh.js", "../source/engine/model/triangle.js", "../source/engine/threejs/threeutils.js", "../source/engine/model/meshinstance.js", "../source/engine/model/node.js", "../source/engine/model/model.js", "../source/engine/core/core.js", "../source/engine/model/modelfinalization.js", "../source/engine/import/importerbase.js", "../source/engine/import/importerutils.js", "../source/engine/import/importer3dm.js", "../source/engine/io/binaryreader.js", "../source/engine/import/importer3ds.js", "../source/engine/import/importergltf.js", "../source/engine/import/importerifc.js", "../source/engine/model/generator.js", "../source/engine/import/importero3dv.js", "../source/engine/import/importerobj.js", "../source/engine/import/importeroff.js", "../source/engine/import/importerply.js", "../source/engine/import/importerstp.js", "../source/engine/import/importerstl.js", "../source/engine/import/importerbim.js", "../source/engine/import/importerthree.js", "../source/engine/import/importer.js", "../source/engine/geometry/tween.js", "../source/engine/viewer/navigation.js", "../source/engine/viewer/viewergeometry.js", "../source/engine/viewer/viewer.js", "../source/website/hashhandler.js", "../source/engine/threejs/threeconverter.js", "../source/engine/threejs/threemodelloader.js", "../source/website/dialog.js", "../source/website/dialogs.js", "../source/website/threemodelloaderui.js", "../source/website/embed.js", "../source/website/panelset.js", "../source/website/treeview.js", "../source/website/navigatorpanel.js", "../source/website/navigatorfilespanel.js", "../source/website/navigatoritems.js", "../source/website/navigatormaterialspanel.js", "../source/website/navigatormeshespanel.js", "../source/website/navigator.js", "../source/website/cookiehandler.js", "../source/website/settings.js", "../source/engine/model/quantities.js", "../source/website/sidebarpanel.js", "../source/website/sidebardetailspanel.js", "../source/website/featureset.js", "../source/website/sidebarsettingspanel.js", "../source/website/sidebar.js", "../source/website/themehandler.js", "../source/website/toolbar.js", "../source/engine/model/meshbuffer.js", "../source/engine/export/exporterbase.js", "../source/engine/export/exporter3dm.js", "../source/engine/io/binarywriter.js", "../source/engine/export/exportergltf.js", "../source/engine/export/exportermodel.js", "../source/engine/io/textwriter.js", "../source/engine/export/exporterobj.js", "../source/engine/export/exporteroff.js", "../source/engine/export/exporterply.js", "../source/engine/export/exporterstl.js", "../source/engine/export/exporter.js", "../source/website/exportdialog.js", "../source/website/snapshotdialog.js", "../source/website/openurldialog.js", "../source/website/sharingdialog.js", "../source/website/measuretool.js", "../source/website/website.js"],
  "sourcesContent": ["import { SetExternalLibLocation } from '../engine/io/externallibs.js';\nimport { CreateDomElement } from '../engine/viewer/domutils.js';\nimport { AddSvgIconElement, InstallTooltip } from './utils.js';\nimport { SetEventHandler } from './eventhandler.js';\nimport { Embed } from './embed.js';\nimport { Website } from './website.js';\n\nexport function SetWebsiteEventHandler (eventHandler)\n{\n    SetEventHandler (eventHandler);\n}\n\nexport function StartWebsite (externalLibLocation)\n{\n    SetExternalLibLocation (externalLibLocation);\n    window.addEventListener ('load', () => {\n        let website = new Website ({\n            headerDiv : document.getElementById ('header'),\n            toolbarDiv : document.getElementById ('toolbar'),\n            mainDiv : document.getElementById ('main'),\n            introDiv : document.getElementById ('intro'),\n            fileNameDiv : document.getElementById ('main_file_name'),\n            navigatorDiv : document.getElementById ('main_navigator'),\n            navigatorSplitterDiv : document.getElementById ('main_navigator_splitter'),\n            sidebarDiv : document.getElementById ('main_sidebar'),\n            sidebarSplitterDiv : document.getElementById ('main_sidebar_splitter'),\n            viewerDiv : document.getElementById ('main_viewer'),\n            fileInput : document.getElementById ('open_file')\n        });\n        website.Load ();\n    });\n}\n\nexport function StartEmbed (externalLibLocation)\n{\n    SetExternalLibLocation (externalLibLocation);\n    window.addEventListener ('load', () => {\n        let embed = new Embed ({\n            viewerDiv : document.getElementById ('embed_viewer'),\n            websiteLinkDiv : document.getElementById ('website_link')\n        });\n        embed.Load ();\n    });\n}\n\nexport function CreateHeaderButton (parentElement, iconName, title, link)\n{\n    let buttonLink = CreateDomElement ('a');\n    buttonLink.setAttribute ('href', link);\n    buttonLink.setAttribute ('target', '_blank');\n    buttonLink.setAttribute ('rel', 'noopener noreferrer');\n    InstallTooltip (buttonLink, title);\n    AddSvgIconElement (buttonLink, iconName, 'header_button');\n    parentElement.appendChild (buttonLink);\n    return buttonLink;\n}\n", "let externalLibLocation = null;\nlet loadedExternalLibs = new Set ();\n\nexport function SetExternalLibLocation (newExternalLibLocation)\n{\n    externalLibLocation = newExternalLibLocation;\n}\n\nexport function GetExternalLibPath (libName)\n{\n    if (externalLibLocation === null) {\n        return null;\n    }\n    return externalLibLocation + '/' + libName;\n}\n\nexport function LoadExternalLibrary (libName)\n{\n    return new Promise ((resolve, reject) => {\n        if (externalLibLocation === null) {\n            reject ();\n            return;\n        }\n\n        if (loadedExternalLibs.has (libName)) {\n            resolve ();\n            return;\n        }\n\n        let scriptElement = document.createElement ('script');\n        scriptElement.type = 'text/javascript';\n        scriptElement.src = GetExternalLibPath (libName);\n        scriptElement.onload = () => {\n            loadedExternalLibs.add (libName);\n            resolve ();\n        };\n        scriptElement.onerror = () => {\n            reject ();\n        };\n        document.head.appendChild (scriptElement);\n    });\n}\n", "export const Eps = 0.00000001;\nexport const BigEps = 0.0001;\nexport const RadDeg = 57.29577951308232;\nexport const DegRad = 0.017453292519943;\n\nexport function IsZero (a)\n{\n\treturn Math.abs (a) < Eps;\n}\n\nexport function IsLower (a, b)\n{\n\treturn b - a > Eps;\n}\n\nexport function IsGreater (a, b)\n{\n\treturn a - b > Eps;\n}\n\nexport function IsLowerOrEqual (a, b)\n{\n\treturn b - a > -Eps;\n}\n\nexport function IsGreaterOrEqual (a, b)\n{\n\treturn a - b > -Eps;\n}\n\nexport function IsEqual (a, b)\n{\n\treturn Math.abs (b - a) < Eps;\n}\n\nexport function IsEqualEps (a, b, eps)\n{\n\treturn Math.abs (b - a) < eps;\n}\n\nexport function IsPositive (a)\n{\n\treturn a > Eps;\n}\n\nexport function IsNegative (a)\n{\n\treturn a < -Eps;\n}\n\nexport const Direction =\n{\n\tX : 1,\n\tY : 2,\n\tZ : 3\n};\n", "import { IsEqual } from './geometry.js';\n\nexport class Coord2D\n{\n\tconstructor (x, y)\n\t{\n\t\tthis.x = x;\n\t\tthis.y = y;\n\t}\n\n\tClone ()\n\t{\n\t\treturn new Coord2D (this.x, this.y);\n\t}\n}\n\nexport function CoordIsEqual2D (a, b)\n{\n\treturn IsEqual (a.x, b.x) && IsEqual (a.y, b.y);\n}\n\nexport function AddCoord2D (a, b)\n{\n\treturn new Coord2D (a.x + b.x, a.y + b.y);\n}\n\nexport function SubCoord2D (a, b)\n{\n\treturn new Coord2D (a.x - b.x, a.y - b.y);\n}\n\nexport function CoordDistance2D (a, b)\n{\n\treturn Math.sqrt ((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y));\n}\n", "import { Coord2D } from '../geometry/coord2d.js';\n\nexport function GetIntegerFromStyle (parameter)\n{\n    return Math.round (parseFloat (parameter));\n}\n\nexport function GetDomElementExternalWidth (style)\n{\n    let padding = GetIntegerFromStyle (style.paddingLeft) + GetIntegerFromStyle (style.paddingRight);\n    let border = GetIntegerFromStyle (style.borderLeftWidth) + GetIntegerFromStyle (style.borderRightWidth);\n    let margin = GetIntegerFromStyle (style.marginLeft) + GetIntegerFromStyle (style.marginRight);\n    return padding + border + margin;\n}\n\nexport function GetDomElementExternalHeight (style)\n{\n    let padding = GetIntegerFromStyle (style.paddingTop) + GetIntegerFromStyle (style.paddingBottom);\n    let border = GetIntegerFromStyle (style.borderTopWidth) + GetIntegerFromStyle (style.borderBottomWidth);\n    let margin = GetIntegerFromStyle (style.marginTop) + GetIntegerFromStyle (style.marginBottom);\n    return padding + border + margin;\n}\n\nexport function GetDomElementInnerDimensions (element, outerWidth, outerHeight)\n{\n    let style = getComputedStyle (element);\n    let width = outerWidth - GetDomElementExternalWidth (style);\n    let height = outerHeight - GetDomElementExternalHeight (style);\n    return {\n        width : width,\n        height : height\n    };\n}\n\nexport function GetDomElementClientCoordinates (element, clientX, clientY)\n{\n    if (element.getBoundingClientRect) {\n        let clientRect = element.getBoundingClientRect ();\n        clientX -= clientRect.left;\n        clientY -= clientRect.top;\n    }\n    if (window.pageXOffset && window.pageYOffset) {\n        clientX += window.pageXOffset;\n        clientY += window.pageYOffset;\n    }\n    return (new Coord2D (clientX, clientY));\n}\n\nexport function CreateDomElement (elementType, className, innerHTML)\n{\n    let element = document.createElement (elementType);\n    if (className) {\n        element.className = className;\n    }\n    if (innerHTML) {\n        element.innerHTML = innerHTML;\n    }\n    return element;\n}\n\nexport function AddDomElement (parentElement, elementType, className, innerHTML)\n{\n    let element = CreateDomElement (elementType, className, innerHTML);\n    parentElement.appendChild (element);\n    return element;\n}\n\nexport function AddDiv (parentElement, className, innerHTML)\n{\n    return AddDomElement (parentElement, 'div', className, innerHTML);\n}\n\nexport function ClearDomElement (element)\n{\n    while (element.firstChild) {\n        element.removeChild (element.firstChild);\n    }\n}\n\nexport function InsertDomElementBefore (newElement, existingElement)\n{\n    existingElement.parentNode.insertBefore (newElement, existingElement);\n}\n\nexport function InsertDomElementAfter (newElement, existingElement)\n{\n    existingElement.parentNode.insertBefore (newElement, existingElement.nextSibling);\n}\n\nexport function ShowDomElement (element, show)\n{\n    if (show) {\n        element.style.display = 'block';\n    } else {\n        element.style.display = 'none';\n    }\n}\n\nexport function IsDomElementVisible (element)\n{\n    return element.offsetParent !== null;\n}\n\nexport function SetDomElementWidth (element, width)\n{\n    element.style.width = width.toString () + 'px';\n}\n\nexport function SetDomElementHeight (element, height)\n{\n    element.style.height = height.toString () + 'px';\n}\n\nexport function GetDomElementOuterWidth (element)\n{\n    let style = getComputedStyle (element);\n    return element.offsetWidth + GetIntegerFromStyle (style.marginLeft) + GetIntegerFromStyle (style.marginRight);\n}\n\nexport function GetDomElementOuterHeight (element)\n{\n    let style = getComputedStyle (element);\n    return element.offsetHeight + GetIntegerFromStyle (style.marginTop) + GetIntegerFromStyle (style.marginBottom);\n}\n\nexport function SetDomElementOuterWidth (element, width)\n{\n    let style = getComputedStyle (element);\n    SetDomElementWidth (element, width - GetDomElementExternalWidth (style));\n}\n\nexport function SetDomElementOuterHeight (element, height)\n{\n    let style = getComputedStyle (element);\n    SetDomElementHeight (element, height - GetDomElementExternalHeight (style));\n}\n\nexport function CreateDiv (className, innerHTML)\n{\n    return CreateDomElement ('div', className, innerHTML);\n}\n", "export class Color\n{\n    constructor (r, g, b)\n    {\n        this.r = r; // 0 .. 255\n        this.g = g; // 0 .. 255\n        this.b = b; // 0 .. 255\n    }\n\n    Set (r, g, b)\n    {\n        this.r = r;\n        this.g = g;\n        this.b = b;\n    }\n\n    Clone ()\n    {\n        return new Color (this.r, this.g, this.b);\n    }\n}\n\nexport function ColorComponentFromFloat (component)\n{\n    return parseInt (Math.round (component * 255.0), 10);\n}\n\nexport function ColorFromFloatComponents (r, g, b)\n{\n    return new Color (\n        ColorComponentFromFloat (r),\n        ColorComponentFromFloat (g),\n        ColorComponentFromFloat (b)\n    );\n}\n\nexport function SRGBToLinear (component)\n{\n    if (component < 0.04045) {\n        return component * 0.0773993808;\n    } else {\n        return Math.pow (component * 0.9478672986 + 0.0521327014, 2.4);\n    }\n}\n\nexport function LinearToSRGB (component)\n{\n    if (component < 0.0031308) {\n        return component * 12.92;\n    } else {\n        return 1.055 * (Math.pow (component, 0.41666)) - 0.055;\n    }\n}\n\nexport function IntegerToHexString (intVal)\n{\n    let result = parseInt (intVal, 10).toString (16);\n    while (result.length < 2) {\n        result = '0' + result;\n    }\n    return result;\n}\n\nexport function ColorToHexString (color)\n{\n    let r = IntegerToHexString (color.r);\n    let g = IntegerToHexString (color.g);\n    let b = IntegerToHexString (color.b);\n    return r + g + b;\n}\n\nexport function HexStringToColor (hexString)\n{\n    if (hexString.length !== 6) {\n        return null;\n    }\n\n    let r = parseInt (hexString.substring (0, 2), 16);\n    let g = parseInt (hexString.substring (2, 4), 16);\n    let b = parseInt (hexString.substring (4, 6), 16);\n    return new Color (r, g, b);\n}\n\nexport function ArrayToColor (arr)\n{\n\treturn new Color (arr[0], arr[1], arr[2]);\n}\n\nexport function ColorIsEqual (a, b)\n{\n\treturn a.r === b.r && a.g === b.g && a.b === b.b;\n}\n", "export function ArrayBufferToUtf8String (buffer)\n{\n\tlet decoder = new TextDecoder ('utf-8');\n\treturn decoder.decode (buffer);\n}\n\nexport function ArrayBufferToAsciiString (buffer)\n{\n\tlet text = '';\n\tlet bufferView = new Uint8Array (buffer);\n\tfor (let i = 0; i < bufferView.byteLength; i++) {\n\t\ttext += String.fromCharCode (bufferView[i]);\n\t}\n\treturn text;\n}\n\nexport function AsciiStringToArrayBuffer (str)\n{\n\tlet buffer = new ArrayBuffer (str.length);\n\tlet bufferView = new Uint8Array (buffer);\n\tfor (let i = 0; i < str.length; i++) {\n\t\tbufferView[i] = str.charCodeAt (i);\n\t}\n\treturn buffer;\n}\n\nexport function Utf8StringToArrayBuffer (str)\n{\n\tlet encoder = new TextEncoder ();\n\tlet uint8Array = encoder.encode (str);\n\treturn uint8Array.buffer;\n}\n\nexport function Base64DataURIToArrayBuffer (uri)\n{\n\tlet dataPrefix = 'data:';\n\tif (!uri.startsWith (dataPrefix)) {\n\t\treturn null;\n\t}\n\n\tlet mimeSeparator = uri.indexOf (';');\n\tif (mimeSeparator === -1) {\n\t\treturn null;\n\t}\n\n\tlet bufferSeparator = uri.indexOf (',');\n\tif (bufferSeparator === -1) {\n\t\treturn null;\n\t}\n\n\tlet mimeType = uri.substring (dataPrefix.length, dataPrefix.length + mimeSeparator - 5);\n\tlet base64String = atob (uri.substring (bufferSeparator + 1));\n\tlet buffer = new ArrayBuffer (base64String.length);\n\tlet bufferView = new Uint8Array (buffer);\n\tfor (let i = 0; i < base64String.length; i++) {\n\t\tbufferView[i] = base64String.charCodeAt (i);\n\t}\n\n\treturn {\n\t\tmimeType : mimeType,\n\t\tbuffer : buffer\n\t};\n}\n\nexport function GetFileExtensionFromMimeType (mimeType)\n{\n\tif (mimeType === undefined || mimeType === null) {\n\t\treturn '';\n\t}\n\tlet mimeParts = mimeType.split ('/');\n\tif (mimeParts.length === 0) {\n\t\treturn '';\n\t}\n\treturn mimeParts[mimeParts.length - 1];\n}\n\nexport function CreateObjectUrl (content)\n{\n\tlet blob = new Blob ([content]);\n\tlet url = URL.createObjectURL (blob);\n\treturn url;\n}\n\nexport function CreateObjectUrlWithMimeType (content, mimeType)\n{\n\tlet blob = new Blob ([content], { type : mimeType });\n\tlet url = URL.createObjectURL (blob);\n\treturn url;\n}\n\nexport function RevokeObjectUrl (url)\n{\n\tURL.revokeObjectURL (url);\n}\n", "export function CreateVerticalSplitter (splitterDiv, callbacks)\n{\n    let originalPosition = null;\n\n    let mouseMoveHandler = (ev) => {\n        ev.preventDefault ();\n        const diff = ev.clientX - originalPosition;\n        callbacks.onSplit (diff);\n    };\n\n    let mouseUpHandler = () => {\n        document.removeEventListener ('mousemove', mouseMoveHandler);\n        document.removeEventListener ('mouseup', mouseUpHandler);\n        document.removeEventListener ('mouseleave', mouseUpHandler);\n        originalPosition = null;\n    };\n\n    splitterDiv.addEventListener ('mousedown', (ev) => {\n        originalPosition = ev.clientX;\n        callbacks.onSplitStart ();\n\n        document.addEventListener ('mousemove', mouseMoveHandler);\n        document.addEventListener ('mouseup', mouseUpHandler);\n        document.addEventListener ('mouseleave', mouseUpHandler);\n    });\n}\n", "import { Color, ColorToHexString } from '../engine/model/color.js';\nimport { CreateObjectUrl } from '../engine/io/bufferutils.js';\nimport { AddDiv, CreateDiv, AddDomElement, GetDomElementOuterWidth, SetDomElementOuterWidth } from '../engine/viewer/domutils.js';\nimport { CreateVerticalSplitter } from './splitter.js';\n\nexport function GetNameOrDefault (originalName, defaultName)\n{\n    if (originalName.length > 0) {\n        return originalName;\n    }\n    return defaultName;\n}\n\nexport function GetNodeName (originalName)\n{\n    return GetNameOrDefault (originalName, 'No Name');\n}\n\nexport function GetMeshName (originalName)\n{\n    return GetNameOrDefault (originalName, 'No Name');\n}\n\nexport function GetMaterialName (originalName)\n{\n    return GetNameOrDefault (originalName, 'No Name');\n}\n\nexport function IsHoverEnabled ()\n{\n    return window.matchMedia ('(hover: hover)').matches;\n}\n\nexport function AddSmallWidthChangeEventListener (onChange)\n{\n    let mediaQuery = window.matchMedia ('(max-width: 800px)');\n    mediaQuery.addEventListener ('change', onChange);\n}\n\nexport function IsSmallWidth ()\n{\n    return window.matchMedia ('(max-width: 800px)').matches;\n}\n\nexport function IsSmallHeight ()\n{\n    return window.matchMedia ('(max-height: 800px)').matches;\n}\n\nexport function InstallTooltip (element, text)\n{\n    function CalculateOffset (element, tooltip)\n    {\n        let windowWidth = window.innerWidth;\n\n        let elementOffset = element.getBoundingClientRect ();\n        let elementWidth = element.offsetWidth;\n        let elementHeight = element.offsetHeight;\n        let tooltipWidth = tooltip.offsetWidth;\n\n        let tooltipMargin = 10;\n        let left = elementOffset.left + elementWidth / 2 - tooltipWidth / 2;\n        if (left + tooltipWidth > windowWidth - tooltipMargin) {\n            left = windowWidth - tooltipWidth - tooltipMargin;\n        }\n        if (left < tooltipMargin) {\n            left = tooltipMargin;\n        }\n        left = Math.max (left, 0);\n        return {\n            left : left,\n            top : elementOffset.top + elementHeight + tooltipMargin\n        };\n    }\n\n    if (!IsHoverEnabled ()) {\n        return;\n    }\n\n    let tooltip = null;\n    element.addEventListener ('mouseover', () => {\n        tooltip = AddDiv (document.body, 'ov_tooltip', text);\n        let offset = CalculateOffset (element, tooltip);\n        tooltip.style.left = offset.left + 'px';\n        tooltip.style.top = offset.top + 'px';\n    });\n    element.addEventListener ('mouseout', () => {\n        tooltip.remove ();\n    });\n}\n\nexport function CopyToClipboard (text)\n{\n    let input = document.createElement ('input');\n    input.style.position = 'absolute';\n    input.style.left = '0';\n    input.style.top = '0';\n    input.setAttribute ('value', text);\n    document.body.appendChild (input);\n    input.select ();\n    document.execCommand ('copy');\n    document.body.removeChild (input);\n}\n\nexport function DownloadUrlAsFile (url, fileName)\n{\n    let link = document.createElement ('a');\n    link.href = url;\n    link.download = fileName;\n    document.body.appendChild (link);\n    link.click ();\n    document.body.removeChild (link);\n}\n\nexport function DownloadArrayBufferAsFile (arrayBuffer, fileName)\n{\n    let url = CreateObjectUrl (arrayBuffer);\n    DownloadUrlAsFile (url, fileName);\n}\n\nexport function CreateSvgIconElement (iconName, className)\n{\n    let iconDiv = CreateDiv ('ov_svg_icon');\n    if (className) {\n        iconDiv.classList.add (className);\n    }\n    AddDomElement (iconDiv, 'i', 'icon icon-' + iconName);\n    return iconDiv;\n}\n\nexport function AddSvgIconElement (parentElement, iconName, className)\n{\n    let iconDiv = CreateSvgIconElement (iconName, className);\n    parentElement.appendChild (iconDiv);\n    return iconDiv;\n}\n\nexport function SetSvgIconImageElement (iconElement, iconName)\n{\n    let iconDiv = iconElement.firstChild;\n    iconDiv.className = 'icon icon-' + iconName;\n}\n\nexport function CreateInlineColorCircle (color)\n{\n    let hexString = '#' + ColorToHexString (color);\n    let darkerColor = new Color (\n        Math.max (0, color.r - 50),\n        Math.max (0, color.g - 50),\n        Math.max (0, color.b - 50)\n    );\n    let darkerColorHexString = '#' + ColorToHexString (darkerColor);\n    let circleDiv = CreateDiv ('ov_color_circle');\n    circleDiv.style.background = hexString;\n    circleDiv.style.border = '1px solid ' + darkerColorHexString;\n    return circleDiv;\n}\n\nexport function IsDarkTextNeededForColor (color)\n{\n    let intensity = color.r * 0.299 + color.g * 0.587 + color.b * 0.114;\n    return intensity > 186.0;\n}\n\nexport function InstallVerticalSplitter (splitterDiv, resizedDiv, flipped, onResize)\n{\n    let originalWidth = null;\n    CreateVerticalSplitter (splitterDiv, {\n        onSplitStart : () => {\n            originalWidth = GetDomElementOuterWidth (resizedDiv);\n        },\n        onSplit : (xDiff) => {\n            const minWidth = 280;\n            const maxWidth = 450;\n            let newWidth = 0;\n            if (flipped) {\n                newWidth = originalWidth - xDiff;\n            } else {\n                newWidth = originalWidth + xDiff;\n            }\n            if (newWidth < minWidth) {\n                newWidth = minWidth;\n            } else if (newWidth > maxWidth)  {\n                newWidth = maxWidth;\n            }\n            SetDomElementOuterWidth (resizedDiv, newWidth);\n            onResize ();\n        }\n    });\n}\n\nexport function GetFilesFromDataTransfer (dataTransfer, onReady)\n{\n    async function GetFileEntriesFromDirectory (dirEntry, fileEntries)\n    {\n        let reader = dirEntry.createReader ();\n        return new Promise ((resolve, reject) => {\n            reader.readEntries (\n                async (dirEntries) => {\n                    for (let entry of dirEntries) {\n                        if (entry.isFile) {\n                            fileEntries.push (entry);\n                        } else if (entry.isDirectory) {\n                            await GetFileEntriesFromDirectory (entry, fileEntries);\n                        }\n                    }\n                    resolve ();\n                },\n                (error) => {\n                    reject (error);\n                }\n            );\n        });\n    }\n\n    async function GetFileObjectsFromEntries (entries, onReady)\n    {\n        let fileEntries = [];\n        for (let entry of entries) {\n            if (entry.isFile) {\n                fileEntries.push (entry);\n            } else if (entry.isDirectory) {\n                await GetFileEntriesFromDirectory (entry, fileEntries);\n            }\n        }\n\n        let fileObjects = await Promise.all (fileEntries.map ((fileEntry) => {\n            return new Promise ((resolve, reject) => {\n                fileEntry.file (\n                    (file) => {\n                        resolve (file);\n                    },\n                    (error) => {\n                        reject (error);\n                    }\n                );\n            });\n        }));\n\n        onReady (fileObjects);\n    }\n\n    let getAsEntryFunc = null;\n    if (DataTransferItem) {\n        if (DataTransferItem.prototype.getAsEntry) {\n            getAsEntryFunc = DataTransferItem.prototype.getAsEntry;\n        } else if (DataTransferItem.prototype.webkitGetAsEntry) {\n            getAsEntryFunc = DataTransferItem.prototype.webkitGetAsEntry;\n        }\n    }\n\n    if (getAsEntryFunc !== null) {\n        let entries = [];\n        for (let item of dataTransfer.items) {\n            let entry = getAsEntryFunc.call (item);\n            if (entry !== null) {\n                entries.push (entry);\n            }\n        }\n        GetFileObjectsFromEntries (entries, (allEntries) => {\n            onReady (allEntries);\n        });\n    } else {\n        onReady (dataTransfer.files);\n    }\n}\n\nexport function AddCheckbox (parentElement, id, text, isChecked, onChange)\n{\n    let label = AddDomElement (parentElement, 'label');\n    label.setAttribute ('for', id);\n    let check = AddDomElement (label, 'input', 'ov_checkbox');\n    check.setAttribute ('type', 'checkbox');\n    check.setAttribute ('id', id);\n    check.checked = isChecked;\n    AddDomElement (label, 'span', null, text);\n    if (onChange) {\n        check.addEventListener ('change', onChange);\n    }\n    return check;\n}\n\nexport function AddRadioButton (parentElement, id, name, text, isChecked, onChange)\n{\n    let label = AddDomElement (parentElement, 'label');\n    label.setAttribute ('for', id);\n    let radio = AddDomElement (label, 'input', 'ov_radio_button');\n    radio.setAttribute ('type', 'radio');\n    radio.setAttribute ('id', id);\n    radio.setAttribute ('name', name);\n    radio.checked = isChecked;\n    AddDomElement (label, 'span', null, text);\n    if (onChange) {\n        radio.addEventListener ('change', onChange);\n    }\n    return radio;\n}\n\nexport function AddRangeSlider (parentElement, min, max)\n{\n    let slider = AddDomElement (parentElement, 'input', 'ov_slider');\n    slider.setAttribute ('type', 'range');\n    slider.setAttribute ('min', min.toString ());\n    slider.setAttribute ('max', max.toString ());\n    return slider;\n}\n\nexport function AddSelect (parentElement, options, selectedIndex, onChange)\n{\n    let container = AddDiv (parentElement, 'ov_select_container');\n    let select = AddDomElement (container, 'select', 'ov_select');\n    for (let option of options) {\n        AddDomElement (select, 'option', null, option);\n    }\n    select.selectedIndex = selectedIndex;\n    if (onChange) {\n        select.addEventListener ('change', () => {\n            onChange (select.selectedIndex);\n        });\n    }\n    return select;\n}\n\nexport function AddToggle (parentElement, className)\n{\n    function UpdateStatus (toggle, status)\n    {\n        if (status) {\n            toggle.classList.add ('on');\n        } else {\n            toggle.classList.remove ('on');\n        }\n    }\n\n    let status = false;\n    let onChange = null;\n\n    let toggleClassName = 'ov_toggle';\n    if (className) {\n        toggleClassName += ' ' + className;\n    }\n    let toggle = AddDiv (parentElement, toggleClassName);\n    AddDiv (toggle, 'ov_toggle_slider');\n\n    toggle.addEventListener ('click', () => {\n        status = !status;\n        UpdateStatus (toggle, status);\n        if (onChange) {\n            onChange ();\n        }\n    });\n\n    return {\n        element : toggle,\n        GetStatus : () => {\n            return status;\n        },\n        SetStatus : (newStatus) => {\n            status = newStatus;\n            UpdateStatus (toggle, status);\n        },\n        OnChange : (onChangeHandler) => {\n            onChange = onChangeHandler;\n        }\n    };\n}\n", "let eventHandlerFunc = null;\n\nexport function SetEventHandler (eventHandler)\n{\n    eventHandlerFunc = eventHandler;\n}\n\nexport function HandleEvent (eventName, eventLabel, eventParams)\n{\n    if (eventHandlerFunc === undefined || eventHandlerFunc === null) {\n        return;\n    }\n    eventHandlerFunc (eventName, eventLabel, eventParams);\n}\n", "import { IsEqual } from './geometry.js';\n\nexport class Coord3D\n{\n\tconstructor (x, y, z)\n\t{\n\t\tthis.x = x;\n\t\tthis.y = y;\n\t\tthis.z = z;\n\t}\n\n\tLength ()\n\t{\n\t\treturn Math.sqrt (this.x * this.x + this.y * this.y + this.z * this.z);\n\t}\n\n\tMultiplyScalar (scalar)\n\t{\n\t\tthis.x *= scalar;\n\t\tthis.y *= scalar;\n\t\tthis.z *= scalar;\n\t\treturn this;\n\t}\n\n\tNormalize ()\n\t{\n\t\tlet length = this.Length ();\n\t\tif (length > 0.0) {\n\t\t\tthis.MultiplyScalar (1.0 / length);\n\t\t}\n\t\treturn this;\n\t}\n\n\tOffset (direction, distance)\n\t{\n\t\tlet normal = direction.Clone ().Normalize ();\n\t\tthis.x += normal.x * distance;\n\t\tthis.y += normal.y * distance;\n\t\tthis.z += normal.z * distance;\n\t\treturn this;\n\t}\n\n\tRotate (axis, angle, origo)\n\t{\n\t\tlet normal = axis.Clone ().Normalize ();\n\n\t\tlet u = normal.x;\n\t\tlet v = normal.y;\n\t\tlet w = normal.z;\n\n\t\tlet x = this.x - origo.x;\n\t\tlet y = this.y - origo.y;\n\t\tlet z = this.z - origo.z;\n\n\t\tlet si = Math.sin (angle);\n\t\tlet co = Math.cos (angle);\n\t\tthis.x = - u * (- u * x - v * y - w * z) * (1.0 - co) + x * co + (- w * y + v * z) * si;\n\t\tthis.y = - v * (- u * x - v * y - w * z) * (1.0 - co) + y * co + (w * x - u * z) * si;\n\t\tthis.z = - w * (- u * x - v * y - w * z) * (1.0 - co) + z * co + (- v * x + u * y) * si;\n\n\t\tthis.x += origo.x;\n\t\tthis.y += origo.y;\n\t\tthis.z += origo.z;\n\t\treturn this;\n\t}\n\n\tClone ()\n\t{\n\t\treturn new Coord3D (this.x, this.y, this.z);\n\t}\n}\n\nexport function CoordIsEqual3D (a, b)\n{\n\treturn IsEqual (a.x, b.x) && IsEqual (a.y, b.y) && IsEqual (a.z, b.z);\n}\n\nexport function AddCoord3D (a, b)\n{\n\treturn new Coord3D (a.x + b.x, a.y + b.y, a.z + b.z);\n}\n\nexport function SubCoord3D (a, b)\n{\n\treturn new Coord3D (a.x - b.x, a.y - b.y, a.z - b.z);\n}\n\nexport function CoordDistance3D (a, b)\n{\n\treturn Math.sqrt ((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y) + (a.z - b.z) * (a.z - b.z));\n}\n\nexport function DotVector3D (a, b)\n{\n\treturn a.x * b.x + a.y * b.y + a.z * b.z;\n}\n\nexport function VectorAngle3D (a, b)\n{\n\tlet aDirection = a.Clone ().Normalize ();\n\tlet bDirection = b.Clone ().Normalize ();\n\tif (CoordIsEqual3D (aDirection, bDirection)) {\n\t\treturn 0.0;\n\t}\n\tlet product = DotVector3D (aDirection, bDirection);\n\treturn Math.acos (product);\n}\n\nexport function CrossVector3D (a, b)\n{\n\tlet result = new Coord3D (0.0, 0.0, 0.0);\n\tresult.x = a.y * b.z - a.z * b.y;\n\tresult.y = a.z * b.x - a.x * b.z;\n\tresult.z = a.x * b.y - a.y * b.x;\n\treturn result;\n}\n\nexport function VectorLength3D (x, y, z)\n{\n\treturn Math.sqrt (x * x + y * y + z * z);\n}\n\nexport function ArrayToCoord3D (arr)\n{\n\treturn new Coord3D (arr[0], arr[1], arr[2]);\n}\n", "import { CoordIsEqual3D } from '../geometry/coord3d.js';\n\nexport class Camera\n{\n    constructor (eye, center, up)\n    {\n        this.eye = eye;\n        this.center = center;\n        this.up = up;\n    }\n\n    Clone ()\n    {\n        return new Camera (\n            this.eye.Clone (),\n            this.center.Clone (),\n            this.up.Clone ()\n        );\n    }\n}\n\nexport function CameraIsEqual3D (a, b)\n{\n\treturn CoordIsEqual3D (a.eye, b.eye) && CoordIsEqual3D (a.center, b.center) && CoordIsEqual3D (a.up, b.up);\n}\n", "import { Coord3D } from '../geometry/coord3d.js';\nimport { Color } from '../model/color.js';\nimport { Camera } from '../viewer/camera.js';\n\nexport let ParameterConverter =\n{\n    IntegerToString (integer)\n    {\n        return integer.toString ();\n    },\n\n    StringToInteger (str)\n    {\n        return parseInt (str, 10);\n    },\n\n    NumberToString (number)\n    {\n        let precision = 5;\n        return number.toFixed (precision);\n    },\n\n    StringToNumber (str)\n    {\n        return parseFloat (str);\n    },\n\n    ModelUrlsToString : function (urls)\n    {\n        if (urls === null) {\n            return null;\n        }\n        return urls.join (',');\n    },\n\n    StringToModelUrls : function (str)\n    {\n        if (str === null || str.length === 0) {\n            return null;\n        }\n        return str.split (',');\n    },\n\n    CameraToString : function (camera)\n    {\n        if (camera === null) {\n            return null;\n        }\n        let cameraParameters = [\n            this.NumberToString (camera.eye.x), this.NumberToString (camera.eye.y), this.NumberToString (camera.eye.z),\n            this.NumberToString (camera.center.x), this.NumberToString (camera.center.y), this.NumberToString (camera.center.z),\n            this.NumberToString (camera.up.x), this.NumberToString (camera.up.y), this.NumberToString (camera.up.z)\n        ].join (',');\n        return cameraParameters;\n    },\n\n    StringToCamera : function (str)\n    {\n        if (str === null || str.length === 0) {\n            return null;\n        }\n        let paramParts = str.split (',');\n        if (paramParts.length !== 9) {\n            return null;\n        }\n        let camera = new Camera (\n            new Coord3D (this.StringToNumber (paramParts[0]), this.StringToNumber (paramParts[1]), this.StringToNumber (paramParts[2])),\n            new Coord3D (this.StringToNumber (paramParts[3]), this.StringToNumber (paramParts[4]), this.StringToNumber (paramParts[5])),\n            new Coord3D (this.StringToNumber (paramParts[6]), this.StringToNumber (paramParts[7]), this.StringToNumber (paramParts[8]))\n        );\n        return camera;\n    },\n\n    ColorToString : function (color)\n    {\n        if (color === null) {\n            return null;\n        }\n        let colorParameters = [\n            this.IntegerToString (color.r),\n            this.IntegerToString (color.g),\n            this.IntegerToString (color.b)\n        ].join (',');\n        return colorParameters;\n    },\n\n    StringToColor : function (str)\n    {\n        if (str === null || str.length === 0) {\n            return null;\n        }\n        let paramParts = str.split (',');\n        if (paramParts.length !== 3) {\n            return null;\n        }\n        let color = new Color (\n            this.StringToInteger (paramParts[0]),\n            this.StringToInteger (paramParts[1]),\n            this.StringToInteger (paramParts[2])\n        );\n        return color;\n    },\n\n    EnvironmentSettingsToString (environmentSettings)\n    {\n        if (environmentSettings === null) {\n            return null;\n        }\n        let environmentSettingsParameters = [\n            environmentSettings.environmentMapName,\n            environmentSettings.backgroundIsEnvMap ? 'on' : 'off'\n        ].join (',');\n        return environmentSettingsParameters;\n    },\n\n    StringToEnvironmentSettings : function (str)\n    {\n        if (str === null || str.length === 0) {\n            return null;\n        }\n        let paramParts = str.split (',');\n        if (paramParts.length !== 2) {\n            return null;\n        }\n        let environmentSettings = {\n            environmentMapName : paramParts[0],\n            backgroundIsEnvMap : paramParts[1] === 'on' ? true : false\n        };\n        return environmentSettings;\n    },\n\n    EdgeSettingsToString : function (edgeSettings)\n    {\n        if (edgeSettings === null) {\n            return null;\n        }\n        let edgeSettingsParameters = [\n            edgeSettings.showEdges ? 'on' : 'off',\n            this.ColorToString (edgeSettings.edgeColor),\n            this.IntegerToString (edgeSettings.edgeThreshold),\n        ].join (',');\n        return edgeSettingsParameters;\n    },\n\n    StringToEdgeSettings : function (str)\n    {\n        if (str === null || str.length === 0) {\n            return null;\n        }\n        let paramParts = str.split (',');\n        if (paramParts.length !== 5) {\n            return null;\n        }\n        let edgeSettings = {\n            showEdges : paramParts[0] === 'on' ? true : false,\n            edgeColor : new Color (\n                this.StringToInteger (paramParts[1]),\n                this.StringToInteger (paramParts[2]),\n                this.StringToInteger (paramParts[3])\n            ),\n            edgeThreshold : this.StringToInteger (paramParts[4])\n        };\n        return edgeSettings;\n    }\n};\n\nexport class ParameterListBuilder\n{\n    constructor (separator)\n    {\n        this.separator = separator;\n        this.paramList = '';\n    }\n\n    AddModelUrls (urls)\n    {\n        this.AddUrlPart ('model', ParameterConverter.ModelUrlsToString (urls));\n        return this;\n    }\n\n    AddCamera (camera)\n    {\n        this.AddUrlPart ('camera', ParameterConverter.CameraToString (camera));\n        return this;\n    }\n\n    AddEnvironmentSettings (envSettings)\n    {\n        this.AddUrlPart ('envsettings', ParameterConverter.EnvironmentSettingsToString (envSettings));\n        return this;\n    }\n\n    AddBackgroundColor (background)\n    {\n        this.AddUrlPart ('backgroundcolor', ParameterConverter.ColorToString (background));\n        return this;\n    }\n\n    AddDefaultColor (color)\n    {\n        this.AddUrlPart ('defaultcolor', ParameterConverter.ColorToString (color));\n        return this;\n    }\n\n    AddEdgeSettings (edgeSettings)\n    {\n        this.AddUrlPart ('edgesettings', ParameterConverter.EdgeSettingsToString (edgeSettings));\n        return this;\n    }\n\n    AddUrlPart (keyword, urlPart)\n    {\n        if (keyword === null || urlPart === null) {\n            return;\n        }\n        if (this.paramList.length > 0) {\n            this.paramList += this.separator;\n        }\n        this.paramList += keyword + '=' + urlPart;\n    }\n\n    GetParameterList ()\n    {\n        return this.paramList;\n    }\n}\n\nexport class ParameterListParser\n{\n    constructor (paramList, separator)\n    {\n        this.separator = separator;\n        this.paramList = paramList;\n    }\n\n    GetModelUrls ()\n    {\n        // detect legacy links\n        if (this.paramList.indexOf ('=') === -1) {\n            return this.paramList.split (',');\n        }\n\n        let keywordParams = this.GetKeywordParams ('model');\n        return ParameterConverter.StringToModelUrls (keywordParams);\n    }\n\n    GetCamera ()\n    {\n        let keywordParams = this.GetKeywordParams ('camera');\n        return ParameterConverter.StringToCamera (keywordParams);\n    }\n\n    GetEnvironmentSettings ()\n    {\n        let environmentSettingsParams = this.GetKeywordParams ('envsettings');\n        return ParameterConverter.StringToEnvironmentSettings (environmentSettingsParams);\n    }\n\n    GetBackgroundColor ()\n    {\n        let backgroundParams = this.GetKeywordParams ('backgroundcolor');\n        return ParameterConverter.StringToColor (backgroundParams);\n    }\n\n    GetDefaultColor ()\n    {\n        let colorParams = this.GetKeywordParams ('defaultcolor');\n        return ParameterConverter.StringToColor (colorParams);\n    }\n\n    GetEdgeSettings ()\n    {\n        let edgeSettingsParams = this.GetKeywordParams ('edgesettings');\n        return ParameterConverter.StringToEdgeSettings (edgeSettingsParams);\n    }\n\n    GetKeywordParams (keyword)\n    {\n        if (this.paramList === null || this.paramList.length === 0) {\n            return null;\n        }\n        let keywordToken = keyword + '=';\n        let urlParts = this.paramList.split (this.separator);\n        for (let i = 0; i < urlParts.length; i++) {\n            let urlPart = urlParts[i];\n            if (urlPart.startsWith (keywordToken)) {\n                return urlPart.substring (keywordToken.length);\n            }\n        }\n        return null;\n    }\n}\n\nexport function CreateUrlBuilder ()\n{\n    return new ParameterListBuilder ('$');\n}\n\nexport function CreateUrlParser (urlParams)\n{\n    return new ParameterListParser (urlParams, '$');\n}\n\nexport function CreateModelUrlParameters (urls)\n{\n    let builder = CreateUrlBuilder ();\n    builder.AddModelUrls (urls);\n    return builder.GetParameterList ();\n}\n", "export const FileSource =\n{\n    Url : 1,\n    File : 2,\n\tDecompressed : 3\n};\n\nexport const FileFormat =\n{\n    Text : 1,\n    Binary : 2\n};\n\nexport function GetFileName (filePath)\n{\n\tlet firstSeparator = filePath.lastIndexOf ('/');\n\tif (firstSeparator === -1) {\n\t\tfirstSeparator = filePath.lastIndexOf ('\\\\');\n\t}\n\tlet fileName = filePath;\n\tif (firstSeparator !== -1) {\n\t\tfileName = filePath.substring (firstSeparator + 1);\n\t}\n\tlet firstParamIndex = fileName.indexOf ('?');\n\tif (firstParamIndex !== -1) {\n\t\tfileName = fileName.substring (0, firstParamIndex);\n\t}\n\treturn decodeURI (fileName);\n}\n\nexport function GetFileExtension (filePath)\n{\n\tlet fileName = GetFileName (filePath);\n\tlet firstPoint = fileName.lastIndexOf ('.');\n\tif (firstPoint === -1) {\n\t\treturn '';\n\t}\n\tlet extension = fileName.substring (firstPoint + 1);\n\treturn extension.toLowerCase ();\n}\n\nexport function RequestUrl (url, format)\n{\n\treturn new Promise ((resolve, reject) => {\n\t\tlet request = new XMLHttpRequest ();\n\t\trequest.open ('GET', url, true);\n\t\tif (format === FileFormat.Text) {\n\t\t\trequest.responseType = 'text';\n\t\t} else if (format === FileFormat.Binary) {\n\t\t\trequest.responseType = 'arraybuffer';\n\t\t} else {\n\t\t\treject ();\n\t\t\treturn;\n\t\t}\n\n\t\trequest.onload = function () {\n\t\t\tif (request.status === 200) {\n\t\t\t\tresolve (request.response);\n\t\t\t} else {\n\t\t\t\treject ();\n\t\t\t}\n\t\t};\n\n\t\trequest.onerror = function () {\n\t\t\treject ();\n\t\t};\n\n\t\trequest.send (null);\n\t});\n}\n\nexport function ReadFile (file, format)\n{\n\treturn new Promise ((resolve, reject) => {\n\t\tlet reader = new FileReader ();\n\n\t\treader.onloadend = function (event) {\n\t\t\tif (event.target.readyState === FileReader.DONE) {\n\t\t\t\tresolve (event.target.result);\n\t\t\t}\n\t\t};\n\n\t\treader.onerror = function () {\n\t\t\treject ();\n\t\t};\n\n\t\tif (format === FileFormat.Text) {\n\t\t\treader.readAsText (file);\n\t\t} else if (format === FileFormat.Binary) {\n\t\t\treader.readAsArrayBuffer (file);\n\t\t} else {\n\t\t\treject ();\n\t\t}\n\t});\n}\n\nexport function TransformFileHostUrls (urls)\n{\n    for (let i = 0; i < urls.length; i++) {\n        let url = urls[i];\n        if (url.search (/www\\.dropbox\\.com/u) !== -1) {\n            url = url.replace ('www.dropbox.com', 'dl.dropbox.com');\n            let separatorPos = url.indexOf ('?');\n            if (separatorPos !== -1) {\n                url = url.substring (0, separatorPos);\n            }\n            urls[i] = url;\n        } else if (url.search (/github\\.com/u) !== -1) {\n            url = url.replace ('github.com', 'raw.githubusercontent.com');\n            url = url.replace ('/blob', '');\n            let separatorPos = url.indexOf ('?');\n            if (separatorPos !== -1) {\n                url = url.substring (0, separatorPos);\n            }\n            urls[i] = url;\n        }\n    }\n}\n", "export class TaskRunner\n{\n    constructor ()\n    {\n        this.count = null;\n        this.current = null;\n        this.callbacks = null;\n    }\n\n    Run (count, callbacks)\n    {\n        this.count = count;\n        this.current = 0;\n        this.callbacks = callbacks;\n        if (count === 0) {\n            this.TaskReady ();\n        } else {\n            this.RunOnce ();\n        }\n    }\n\n    RunBatch (count, batchCount, callbacks)\n    {\n        let stepCount = 0;\n        if (count > 0) {\n            stepCount = parseInt ((count - 1) / batchCount, 10) + 1;\n        }\n        this.Run (stepCount, {\n            runTask : (index, ready) => {\n                const firstIndex = index * batchCount;\n                const lastIndex = Math.min ((index + 1) * batchCount, count) - 1;\n                callbacks.runTask (firstIndex, lastIndex, ready);\n            },\n            onReady : callbacks.onReady\n        });\n    }\n\n    RunOnce ()\n    {\n        setTimeout (() => {\n            this.callbacks.runTask (this.current, this.TaskReady.bind (this));\n        }, 0);\n    }\n\n    TaskReady ()\n    {\n        this.current += 1;\n        if (this.current < this.count) {\n            this.RunOnce ();\n        } else {\n            if (this.callbacks.onReady) {\n                this.callbacks.onReady ();\n            }\n        }\n    }\n}\n\nexport function RunTaskAsync (task)\n{\n    setTimeout (() => {\n        task ();\n    }, 0);\n}\n\nexport function RunTasks (count, callbacks)\n{\n    let taskRunner = new TaskRunner ();\n    taskRunner.Run (count, callbacks);\n}\n\nexport function RunTasksBatch (count, batchCount, callbacks)\n{\n    let taskRunner = new TaskRunner ();\n    taskRunner.RunBatch (count, batchCount, callbacks);\n}\n\nexport function WaitWhile (expression)\n{\n    function Waiter (expression)\n    {\n        if (expression ()) {\n            setTimeout (() => {\n                Waiter (expression);\n            }, 1);\n        }\n    }\n    Waiter (expression);\n}\n", "import { RunTasks } from '../core/taskrunner.js';\nimport { FileFormat, FileSource, GetFileExtension, GetFileName, ReadFile, RequestUrl } from '../io/fileutils.js';\n\nexport class File\n{\n    constructor (file, source)\n    {\n        this.source = source;\n        if (source === FileSource.Url) {\n            this.fileUrl = file;\n            this.fileObject = null;\n            this.name = GetFileName (file);\n            this.extension = GetFileExtension (file);\n        } else if (source === FileSource.File) {\n            this.fileUrl = null;\n            this.fileObject = file;\n            this.name = GetFileName (file.name);\n            this.extension = GetFileExtension (file.name);\n        } else if (source === FileSource.Decompressed) {\n            this.fileUrl = null;\n            this.fileObject = null;\n            this.name = GetFileName (file);\n            this.extension = GetFileExtension (file);\n        }\n        this.content = null;\n    }\n\n    SetContent (content)\n    {\n        this.content = content;\n    }\n}\n\nexport class FileList\n{\n    constructor ()\n    {\n        this.files = [];\n    }\n\n    FillFromFileUrls (fileList)\n    {\n        this.Fill (fileList, FileSource.Url);\n    }\n\n    FillFromFileObjects (fileList)\n    {\n        this.Fill (fileList, FileSource.File);\n    }\n\n    ExtendFromFileList (files)\n    {\n        for (let i = 0; i < files.length; i++) {\n            let file = files[i];\n            if (!this.ContainsFileByPath (file.name)) {\n                this.files.push (file);\n            }\n        }\n    }\n\n    GetFiles ()\n    {\n        return this.files;\n    }\n\n    GetContent (onReady)\n    {\n        RunTasks (this.files.length, {\n            runTask : (index, complete) => {\n                this.GetFileContent (this.files[index], complete);\n            },\n            onReady : onReady\n        });\n    }\n\n    ContainsFileByPath (filePath)\n    {\n        return this.FindFileByPath (filePath) !== null;\n    }\n\n    FindFileByPath (filePath)\n    {\n        let fileName = GetFileName (filePath).toLowerCase ();\n        for (let fileIndex = 0; fileIndex < this.files.length; fileIndex++) {\n            let file = this.files[fileIndex];\n            if (file.name.toLowerCase () === fileName) {\n                return file;\n            }\n        }\n        return null;\n    }\n\n    IsOnlyUrlSource ()\n    {\n        if (this.files.length === 0) {\n            return false;\n        }\n        for (let i = 0; i < this.files.length; i++) {\n            let file = this.files[i];\n            if (file.source !== FileSource.Url && file.source !== FileSource.Decompressed) {\n                return false;\n            }\n        }\n        return true;\n    }\n\n    Fill (fileList, fileSource)\n    {\n        this.files = [];\n        for (let fileIndex = 0; fileIndex < fileList.length; fileIndex++) {\n            let fileObject = fileList[fileIndex];\n            let file = new File (fileObject, fileSource);\n            this.AddFile (file);\n        }\n    }\n\n    AddFile (file)\n    {\n        this.files.push (file);\n    }\n\n    GetFileContent (file, complete)\n    {\n        if (file.content !== null) {\n            complete ();\n            return;\n        }\n        let loaderPromise = null;\n        if (file.source === FileSource.Url) {\n            loaderPromise = RequestUrl (file.fileUrl, FileFormat.Binary);\n        } else if (file.source === FileSource.File) {\n            loaderPromise = ReadFile (file.fileObject, FileFormat.Binary);\n        } else {\n            complete ();\n            return;\n        }\n        loaderPromise.then ((content) => {\n            file.SetContent (content);\n        }).catch (() => {\n        }).finally (() => {\n            complete ();\n        });\n    }\n}\n", "import { IsEqual } from './geometry.js';\n\nexport class Quaternion\n{\n\tconstructor (x, y, z, w)\n\t{\n\t\tthis.x = x;\n\t\tthis.y = y;\n\t\tthis.z = z;\n        this.w = w;\n\t}\n}\n\nexport function QuaternionIsEqual (a, b)\n{\n\treturn IsEqual (a.x, b.x) && IsEqual (a.y, b.y) && IsEqual (a.z, b.z) && IsEqual (a.w, b.w);\n}\n\nexport function ArrayToQuaternion (arr)\n{\n\treturn new Quaternion (arr[0], arr[1], arr[2], arr[3]);\n}\n\nexport function QuaternionFromAxisAngle (axis, angle)\n{\n\tconst a = angle / 2.0;\n\tconst s = Math.sin (a);\n\n\treturn new Quaternion (\n\t\taxis.x * s,\n\t\taxis.y * s,\n\t\taxis.z * s,\n\t\tMath.cos (a)\n\t);\n}\n\nexport function QuaternionFromXYZ (x, y, z, mode) {\n\n\tconst c1 = Math.cos (x / 2.0);\n\tconst c2 = Math.cos (y / 2.0);\n\tconst c3 = Math.cos (z / 2.0);\n\n\tconst s1 = Math.sin (x / 2.0);\n\tconst s2 = Math.sin (y / 2.0);\n\tconst s3 = Math.sin (z / 2.0);\n\n\tlet quaternion = new Quaternion (0.0, 0.0, 0.0, 1.0);\n\tif (mode === 'XYZ') {\n\t\tquaternion.x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\tquaternion.y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\tquaternion.z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\tquaternion.w = c1 * c2 * c3 - s1 * s2 * s3;\n\t} else if (mode === 'YXZ') {\n\t\tquaternion.x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\tquaternion.y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\tquaternion.z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\tquaternion.w = c1 * c2 * c3 + s1 * s2 * s3;\n\t} else if (mode === 'ZXY') {\n\t\tquaternion.x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\tquaternion.y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\tquaternion.z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\tquaternion.w = c1 * c2 * c3 - s1 * s2 * s3;\n\t} else if (mode === 'ZYX') {\n\t\tquaternion.x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\tquaternion.y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\tquaternion.z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\tquaternion.w = c1 * c2 * c3 + s1 * s2 * s3;\n\t} else if (mode === 'YZX') {\n\t\tquaternion.x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\tquaternion.y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\tquaternion.z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\tquaternion.w = c1 * c2 * c3 - s1 * s2 * s3;\n\t} else if (mode === 'XZY') {\n\t\tquaternion.x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\tquaternion.y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\tquaternion.z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\tquaternion.w = c1 * c2 * c3 + s1 * s2 * s3;\n\t} else {\n\t\treturn null;\n\t}\n\n\treturn quaternion;\n}\n", "export class Coord4D\n{\n\tconstructor (x, y, z, w)\n\t{\n\t\tthis.x = x;\n\t\tthis.y = y;\n\t\tthis.z = z;\n        this.w = w;\n\t}\n\n\tClone ()\n\t{\n\t\treturn new Coord4D (this.x, this.y, this.z, this.w);\n\t}\n}\n", "import { Quaternion } from './quaternion.js';\nimport { Coord3D, VectorLength3D } from './coord3d.js';\nimport { Coord4D } from './coord4d.js';\nimport { IsEqual, IsNegative } from './geometry.js';\nimport { QuaternionFromAxisAngle } from './quaternion.js';\n\nexport class Matrix\n{\n    constructor (matrix)\n    {\n        this.matrix = null;\n        if (matrix !== undefined && matrix !== null) {\n            this.matrix = matrix;\n        }\n    }\n\n    IsValid ()\n    {\n        return this.matrix !== null;\n    }\n\n    Set (matrix)\n    {\n        this.matrix = matrix;\n        return this;\n    }\n\n    Get ()\n    {\n        return this.matrix;\n    }\n\n    Clone ()\n    {\n        let result = [\n            this.matrix[0], this.matrix[1], this.matrix[2], this.matrix[3],\n            this.matrix[4], this.matrix[5], this.matrix[6], this.matrix[7],\n            this.matrix[8], this.matrix[9], this.matrix[10], this.matrix[11],\n            this.matrix[12], this.matrix[13], this.matrix[14], this.matrix[15]\n        ];\n        return new Matrix (result);\n    }\n\n    CreateIdentity ()\n    {\n        this.matrix = [\n            1.0, 0.0, 0.0, 0.0,\n            0.0, 1.0, 0.0, 0.0,\n            0.0, 0.0, 1.0, 0.0,\n            0.0, 0.0, 0.0, 1.0\n        ];\n        return this;\n    }\n\n    IsIdentity ()\n    {\n        let identity = new Matrix ().CreateIdentity ().Get ();\n        for (let i = 0; i < 16; i++) {\n            if (!IsEqual (this.matrix[i], identity[i])) {\n                return false;\n            }\n        }\n        return true;\n    }\n\n    CreateTranslation (x, y, z)\n    {\n        this.matrix = [\n            1.0, 0.0, 0.0, 0.0,\n            0.0, 1.0, 0.0, 0.0,\n            0.0, 0.0, 1.0, 0.0,\n            x, y, z, 1.0\n        ];\n        return this;\n    }\n\n    CreateRotation (x, y, z, w)\n    {\n        let x2 = x + x;\n        let y2 = y + y;\n        let z2 = z + z;\n        let xx = x * x2;\n        let xy = x * y2;\n        let xz = x * z2;\n        let yy = y * y2;\n        let yz = y * z2;\n        let zz = z * z2;\n        let wx = w * x2;\n        let wy = w * y2;\n        let wz = w * z2;\n        this.matrix = [\n            1.0 - (yy + zz), xy + wz, xz - wy, 0.0,\n            xy - wz, 1.0 - (xx + zz), yz + wx, 0.0,\n            xz + wy, yz - wx, 1.0 - (xx + yy), 0.0,\n            0.0, 0.0, 0.0, 1.0\n        ];\n        return this;\n    }\n\n    CreateRotationAxisAngle (axis, angle)\n    {\n        let quaternion = QuaternionFromAxisAngle (axis, angle);\n        return this.CreateRotation (quaternion.x, quaternion.y, quaternion.z, quaternion.w);\n    }\n\n    CreateScale (x, y, z)\n    {\n        this.matrix = [\n            x, 0.0, 0.0, 0.0,\n            0.0, y, 0.0, 0.0,\n            0.0, 0.0, z, 0.0,\n            0.0, 0.0, 0.0, 1.0\n        ];\n        return this;\n    }\n\n    ComposeTRS (translation, rotation, scale)\n    {\n        let tx = translation.x;\n        let ty = translation.y;\n        let tz = translation.z;\n        let qx = rotation.x;\n        let qy = rotation.y;\n        let qz = rotation.z;\n        let qw = rotation.w;\n        let sx = scale.x;\n        let sy = scale.y;\n        let sz = scale.z;\n\n        let x2 = qx + qx;\n        let y2 = qy + qy;\n        let z2 = qz + qz;\n        let xx = qx * x2;\n        let xy = qx * y2;\n        let xz = qx * z2;\n        let yy = qy * y2;\n        let yz = qy * z2;\n        let zz = qz * z2;\n        let wx = qw * x2;\n        let wy = qw * y2;\n        let wz = qw * z2;\n\n        this.matrix = [\n            (1.0 - (yy + zz)) * sx, (xy + wz) * sx, (xz - wy) * sx, 0.0,\n            (xy - wz) * sy, (1.0 - (xx + zz)) * sy, (yz + wx) * sy, 0.0,\n            (xz + wy) * sz, (yz - wx) * sz, (1.0 - (xx + yy)) * sz, 0.0,\n            tx, ty, tz, 1.0\n        ];\n        return this;\n    }\n\n    DecomposeTRS ()\n    {\n        let translation = new Coord3D (\n            this.matrix[12],\n            this.matrix[13],\n            this.matrix[14]\n        );\n\n        let sx = VectorLength3D (this.matrix[0], this.matrix[1], this.matrix[2]);\n        let sy = VectorLength3D (this.matrix[4], this.matrix[5], this.matrix[6]);\n        let sz = VectorLength3D (this.matrix[8], this.matrix[9], this.matrix[10]);\n        let determinant = this.Determinant ();\n        if (IsNegative (determinant)) {\n            sx *= -1.0;\n        }\n        let scale = new Coord3D (sx, sy, sz);\n\n        let m00 = this.matrix[0] / sx;\n        let m01 = this.matrix[4] / sy;\n        let m02 = this.matrix[8] / sz;\n        let m10 = this.matrix[1] / sx;\n        let m11 = this.matrix[5] / sy;\n        let m12 = this.matrix[9] / sz;\n        let m20 = this.matrix[2] / sx;\n        let m21 = this.matrix[6] / sy;\n        let m22 = this.matrix[10] / sz;\n\n        // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm\n        let rotation = null;\n        let tr = m00 + m11 + m22;\n        if (tr > 0.0) {\n            let s = Math.sqrt (tr + 1.0) * 2.0;\n            rotation = new Quaternion (\n                (m21 - m12) / s,\n                (m02 - m20) / s,\n                (m10 - m01) / s,\n                0.25 * s\n            );\n        } else if ((m00 > m11) && (m00 > m22)) {\n            let s = Math.sqrt (1.0 + m00 - m11 - m22) * 2.0;\n            rotation = new Quaternion (\n                0.25 * s,\n                (m01 + m10) / s,\n                (m02 + m20) / s,\n                (m21 - m12) / s\n            );\n        } else if (m11 > m22) {\n            let s = Math.sqrt (1.0 + m11 - m00 - m22) * 2.0;\n            rotation = new Quaternion (\n                (m01 + m10) / s,\n                0.25 * s,\n                (m12 + m21) / s,\n                (m02 - m20) / s\n            );\n        } else {\n            let s = Math.sqrt (1.0 + m22 - m00 - m11) * 2.0;\n            rotation = new Quaternion (\n                (m02 + m20) / s,\n                (m12 + m21) / s,\n                0.25 * s,\n                (m10 - m01) / s\n            );\n        }\n\n        return {\n            translation : translation,\n            rotation : rotation,\n            scale : scale\n        };\n    }\n\n    Determinant ()\n    {\n        let a00 = this.matrix[0];\n        let a01 = this.matrix[1];\n        let a02 = this.matrix[2];\n        let a03 = this.matrix[3];\n        let a10 = this.matrix[4];\n        let a11 = this.matrix[5];\n        let a12 = this.matrix[6];\n        let a13 = this.matrix[7];\n        let a20 = this.matrix[8];\n        let a21 = this.matrix[9];\n        let a22 = this.matrix[10];\n        let a23 = this.matrix[11];\n        let a30 = this.matrix[12];\n        let a31 = this.matrix[13];\n        let a32 = this.matrix[14];\n        let a33 = this.matrix[15];\n\n        let b00 = a00 * a11 - a01 * a10;\n        let b01 = a00 * a12 - a02 * a10;\n        let b02 = a00 * a13 - a03 * a10;\n        let b03 = a01 * a12 - a02 * a11;\n        let b04 = a01 * a13 - a03 * a11;\n        let b05 = a02 * a13 - a03 * a12;\n        let b06 = a20 * a31 - a21 * a30;\n        let b07 = a20 * a32 - a22 * a30;\n        let b08 = a20 * a33 - a23 * a30;\n        let b09 = a21 * a32 - a22 * a31;\n        let b10 = a21 * a33 - a23 * a31;\n        let b11 = a22 * a33 - a23 * a32;\n\n        let determinant = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n        return determinant;\n    }\n\n    Invert ()\n    {\n        let a00 = this.matrix[0];\n        let a01 = this.matrix[1];\n        let a02 = this.matrix[2];\n        let a03 = this.matrix[3];\n        let a10 = this.matrix[4];\n        let a11 = this.matrix[5];\n        let a12 = this.matrix[6];\n        let a13 = this.matrix[7];\n        let a20 = this.matrix[8];\n        let a21 = this.matrix[9];\n        let a22 = this.matrix[10];\n        let a23 = this.matrix[11];\n        let a30 = this.matrix[12];\n        let a31 = this.matrix[13];\n        let a32 = this.matrix[14];\n        let a33 = this.matrix[15];\n\n        let b00 = a00 * a11 - a01 * a10;\n        let b01 = a00 * a12 - a02 * a10;\n        let b02 = a00 * a13 - a03 * a10;\n        let b03 = a01 * a12 - a02 * a11;\n        let b04 = a01 * a13 - a03 * a11;\n        let b05 = a02 * a13 - a03 * a12;\n        let b06 = a20 * a31 - a21 * a30;\n        let b07 = a20 * a32 - a22 * a30;\n        let b08 = a20 * a33 - a23 * a30;\n        let b09 = a21 * a32 - a22 * a31;\n        let b10 = a21 * a33 - a23 * a31;\n        let b11 = a22 * a33 - a23 * a32;\n\n        let determinant = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n        if (IsEqual (determinant, 0.0)) {\n            return null;\n        }\n\n        let result = [\n            (a11 * b11 - a12 * b10 + a13 * b09) / determinant,\n            (a02 * b10 - a01 * b11 - a03 * b09) / determinant,\n            (a31 * b05 - a32 * b04 + a33 * b03) / determinant,\n            (a22 * b04 - a21 * b05 - a23 * b03) / determinant,\n            (a12 * b08 - a10 * b11 - a13 * b07) / determinant,\n            (a00 * b11 - a02 * b08 + a03 * b07) / determinant,\n            (a32 * b02 - a30 * b05 - a33 * b01) / determinant,\n            (a20 * b05 - a22 * b02 + a23 * b01) / determinant,\n            (a10 * b10 - a11 * b08 + a13 * b06) / determinant,\n            (a01 * b08 - a00 * b10 - a03 * b06) / determinant,\n            (a30 * b04 - a31 * b02 + a33 * b00) / determinant,\n            (a21 * b02 - a20 * b04 - a23 * b00) / determinant,\n            (a11 * b07 - a10 * b09 - a12 * b06) / determinant,\n            (a00 * b09 - a01 * b07 + a02 * b06) / determinant,\n            (a31 * b01 - a30 * b03 - a32 * b00) / determinant,\n            (a20 * b03 - a21 * b01 + a22 * b00) / determinant\n        ];\n\n        return new Matrix (result);\n    }\n\n    Transpose ()\n    {\n        let result = [\n            this.matrix[0], this.matrix[4], this.matrix[8], this.matrix[12],\n            this.matrix[1], this.matrix[5], this.matrix[9], this.matrix[13],\n            this.matrix[2], this.matrix[6], this.matrix[10], this.matrix[14],\n            this.matrix[3], this.matrix[7], this.matrix[11], this.matrix[15]\n        ];\n        return new Matrix (result);\n    }\n\n    InvertTranspose ()\n    {\n        let result = this.Invert ();\n        if (result === null) {\n            return null;\n        }\n        return result.Transpose ();\n    }\n\n    MultiplyVector (vector)\n    {\n        let a00 = vector.x;\n        let a01 = vector.y;\n        let a02 = vector.z;\n        let a03 = vector.w;\n\n        let b00 = this.matrix[0];\n        let b01 = this.matrix[1];\n        let b02 = this.matrix[2];\n        let b03 = this.matrix[3];\n        let b10 = this.matrix[4];\n        let b11 = this.matrix[5];\n        let b12 = this.matrix[6];\n        let b13 = this.matrix[7];\n        let b20 = this.matrix[8];\n        let b21 = this.matrix[9];\n        let b22 = this.matrix[10];\n        let b23 = this.matrix[11];\n        let b30 = this.matrix[12];\n        let b31 = this.matrix[13];\n        let b32 = this.matrix[14];\n        let b33 = this.matrix[15];\n\n        let result = new Coord4D (\n            a00 * b00 + a01 * b10 + a02 * b20 + a03 * b30,\n            a00 * b01 + a01 * b11 + a02 * b21 + a03 * b31,\n            a00 * b02 + a01 * b12 + a02 * b22 + a03 * b32,\n            a00 * b03 + a01 * b13 + a02 * b23 + a03 * b33\n        );\n        return result;\n    }\n\n    MultiplyMatrix (matrix)\n    {\n        let a00 = this.matrix[0];\n        let a01 = this.matrix[1];\n        let a02 = this.matrix[2];\n        let a03 = this.matrix[3];\n        let a10 = this.matrix[4];\n        let a11 = this.matrix[5];\n        let a12 = this.matrix[6];\n        let a13 = this.matrix[7];\n        let a20 = this.matrix[8];\n        let a21 = this.matrix[9];\n        let a22 = this.matrix[10];\n        let a23 = this.matrix[11];\n        let a30 = this.matrix[12];\n        let a31 = this.matrix[13];\n        let a32 = this.matrix[14];\n        let a33 = this.matrix[15];\n\n        let b00 = matrix.matrix[0];\n        let b01 = matrix.matrix[1];\n        let b02 = matrix.matrix[2];\n        let b03 = matrix.matrix[3];\n        let b10 = matrix.matrix[4];\n        let b11 = matrix.matrix[5];\n        let b12 = matrix.matrix[6];\n        let b13 = matrix.matrix[7];\n        let b20 = matrix.matrix[8];\n        let b21 = matrix.matrix[9];\n        let b22 = matrix.matrix[10];\n        let b23 = matrix.matrix[11];\n        let b30 = matrix.matrix[12];\n        let b31 = matrix.matrix[13];\n        let b32 = matrix.matrix[14];\n        let b33 = matrix.matrix[15];\n\n        let result = [\n            a00 * b00 + a01 * b10 + a02 * b20 + a03 * b30,\n            a00 * b01 + a01 * b11 + a02 * b21 + a03 * b31,\n            a00 * b02 + a01 * b12 + a02 * b22 + a03 * b32,\n            a00 * b03 + a01 * b13 + a02 * b23 + a03 * b33,\n            a10 * b00 + a11 * b10 + a12 * b20 + a13 * b30,\n            a10 * b01 + a11 * b11 + a12 * b21 + a13 * b31,\n            a10 * b02 + a11 * b12 + a12 * b22 + a13 * b32,\n            a10 * b03 + a11 * b13 + a12 * b23 + a13 * b33,\n            a20 * b00 + a21 * b10 + a22 * b20 + a23 * b30,\n            a20 * b01 + a21 * b11 + a22 * b21 + a23 * b31,\n            a20 * b02 + a21 * b12 + a22 * b22 + a23 * b32,\n            a20 * b03 + a21 * b13 + a22 * b23 + a23 * b33,\n            a30 * b00 + a31 * b10 + a32 * b20 + a33 * b30,\n            a30 * b01 + a31 * b11 + a32 * b21 + a33 * b31,\n            a30 * b02 + a31 * b12 + a32 * b22 + a33 * b32,\n            a30 * b03 + a31 * b13 + a32 * b23 + a33 * b33\n        ];\n\n        return new Matrix (result);\n    }\n}\n\nexport function MatrixIsEqual (a, b)\n{\n    const aMatrix = a.Get ();\n    const bMatrix = b.Get ();\n\tfor (let i = 0; i < 16; i++) {\n        if (!IsEqual (aMatrix[i], bMatrix[i])) {\n            return false;\n        }\n    }\n    return true;\n}\n", "import { Coord3D } from './coord3d.js';\nimport { Coord4D } from './coord4d.js';\nimport { Matrix, MatrixIsEqual } from './matrix.js';\n\nexport class Transformation\n{\n    constructor (matrix)\n    {\n        if (matrix !== undefined && matrix !== null) {\n            this.matrix = matrix;\n        } else {\n            this.matrix = new Matrix ();\n            this.matrix.CreateIdentity ();\n        }\n    }\n\n    SetMatrix (matrix)\n    {\n        this.matrix = matrix;\n        return this;\n    }\n\n    GetMatrix ()\n    {\n        return this.matrix;\n    }\n\n    IsIdentity ()\n    {\n        return this.matrix.IsIdentity ();\n    }\n\n    AppendMatrix (matrix)\n    {\n        this.matrix = this.matrix.MultiplyMatrix (matrix);\n        return this;\n    }\n\n    Append (transformation)\n    {\n        this.AppendMatrix (transformation.GetMatrix ());\n        return this;\n    }\n\n    TransformCoord3D (coord)\n    {\n        let coord4D = new Coord4D (coord.x, coord.y, coord.z, 1.0);\n        let resultCoord4D = this.matrix.MultiplyVector (coord4D);\n        let result = new Coord3D (resultCoord4D.x, resultCoord4D.y, resultCoord4D.z);\n        return result;\n    }\n\n    Clone ()\n    {\n        const clonedMatrix = this.matrix.Clone ();\n        return new Transformation (clonedMatrix);\n    }\n}\n\nexport function TransformationIsEqual (a, b)\n{\n    return MatrixIsEqual (a.GetMatrix (), b.GetMatrix ());\n}\n", "import { Coord2D, CoordIsEqual2D } from '../geometry/coord2d.js';\nimport { IsEqual } from '../geometry/geometry.js';\nimport { Color, ColorIsEqual } from './color.js';\n\nexport class TextureMap\n{\n    constructor ()\n    {\n        this.name = null;\n        this.url = null;\n        this.buffer = null;\n        this.offset = new Coord2D (0.0, 0.0);\n        this.scale = new Coord2D (1.0, 1.0);\n        this.rotation = 0.0; // radians\n    }\n\n    IsValid ()\n    {\n        return this.name !== null && this.url !== null && this.buffer !== null;\n    }\n\n    HasTransformation ()\n    {\n        if (!CoordIsEqual2D (this.offset, new Coord2D (0.0, 0.0))) {\n            return true;\n        }\n        if (!CoordIsEqual2D (this.scale, new Coord2D (1.0, 1.0))) {\n            return true;\n        }\n        if (!IsEqual (this.rotation, 0.0)) {\n            return true;\n        }\n        return false;\n    }\n\n    IsEqual (rhs)\n    {\n        if (this.name !== rhs.name) {\n            return false;\n        }\n        if (this.url !== rhs.url) {\n            return false;\n        }\n        if (!CoordIsEqual2D (this.offset, rhs.offset)) {\n            return false;\n        }\n        if (!CoordIsEqual2D (this.scale, rhs.scale)) {\n            return false;\n        }\n        if (!IsEqual (this.rotation, rhs.rotation)) {\n            return false;\n        }\n        return true;\n    }\n}\n\nexport function TextureMapIsEqual (aTex, bTex)\n{\n    if (aTex === null && bTex === null) {\n        return true;\n    } else if (aTex === null || bTex === null) {\n        return false;\n    }\n    return aTex.IsEqual (bTex);\n}\n\nexport const MaterialType =\n{\n    Phong : 1,\n    Physical : 2\n};\n\nexport class MaterialBase\n{\n    constructor (type)\n    {\n        this.type = type;\n        this.isDefault = false;\n\n        this.name = '';\n        this.color = new Color (0, 0, 0);\n\n        this.vertexColors = false;\n    }\n\n    IsEqual (rhs)\n    {\n        if (this.type !== rhs.type) {\n            return false;\n        }\n        if (this.isDefault !== rhs.isDefault) {\n            return false;\n        }\n        if (this.name !== rhs.name) {\n            return false;\n        }\n        if (!ColorIsEqual (this.color, rhs.color)) {\n            return false;\n        }\n        if (this.vertexColors !== rhs.vertexColors) {\n            return false;\n        }\n        return true;\n    }\n}\n\nexport class FaceMaterial extends MaterialBase\n{\n    constructor (type)\n    {\n        super (type);\n\n        this.emissive = new Color (0, 0, 0);\n\n        this.opacity = 1.0; // 0.0 .. 1.0\n        this.transparent = false;\n\n        this.diffuseMap = null;\n        this.bumpMap = null;\n        this.normalMap = null;\n        this.emissiveMap = null;\n\n        this.alphaTest = 0.0; // 0.0 .. 1.0\n        this.multiplyDiffuseMap = false;\n    }\n\n    IsEqual (rhs)\n    {\n        if (!super.IsEqual (rhs)) {\n            return false;\n        }\n        if (!ColorIsEqual (this.emissive, rhs.emissive)) {\n            return false;\n        }\n        if (!IsEqual (this.opacity, rhs.opacity)) {\n            return false;\n        }\n        if (this.transparent !== rhs.transparent) {\n            return false;\n        }\n        if (!TextureMapIsEqual (this.diffuseMap, rhs.diffuseMap)) {\n            return false;\n        }\n        if (!TextureMapIsEqual (this.bumpMap, rhs.bumpMap)) {\n            return false;\n        }\n        if (!TextureMapIsEqual (this.normalMap, rhs.normalMap)) {\n            return false;\n        }\n        if (!TextureMapIsEqual (this.emissiveMap, rhs.emissiveMap)) {\n            return false;\n        }\n        if (!IsEqual (this.alphaTest, rhs.alphaTest)) {\n            return false;\n        }\n        if (this.multiplyDiffuseMap !== rhs.multiplyDiffuseMap) {\n            return false;\n        }\n        return true;\n    }\n\n    EnumerateTextureMaps (enumerator)\n    {\n        if (this.diffuseMap !== null) {\n            enumerator (this.diffuseMap);\n        }\n        if (this.bumpMap !== null) {\n            enumerator (this.bumpMap);\n        }\n        if (this.normalMap !== null) {\n            enumerator (this.normalMap);\n        }\n        if (this.emissiveMap !== null) {\n            enumerator (this.emissiveMap);\n        }\n    }\n}\n\nexport class PhongMaterial extends FaceMaterial\n{\n    constructor ()\n    {\n        super (MaterialType.Phong);\n\n        this.ambient = new Color (0, 0, 0);\n        this.specular = new Color (0, 0, 0);\n        this.shininess = 0.0; // 0.0 .. 1.0\n        this.specularMap = null;\n    }\n\n    IsEqual (rhs)\n    {\n        if (!super.IsEqual (rhs)) {\n            return false;\n        }\n        if (!ColorIsEqual (this.ambient, rhs.ambient)) {\n            return false;\n        }\n        if (!ColorIsEqual (this.specular, rhs.specular)) {\n            return false;\n        }\n        if (!IsEqual (this.shininess, rhs.shininess)) {\n            return false;\n        }\n        if (!TextureMapIsEqual (this.specularMap, rhs.specularMap)) {\n            return false;\n        }\n        return true;\n    }\n\n    EnumerateTextureMaps (enumerator)\n    {\n        super.EnumerateTextureMaps (enumerator);\n        if (this.specularMap !== null) {\n            enumerator (this.specularMap);\n        }\n    }\n}\n\nexport class PhysicalMaterial extends FaceMaterial\n{\n    constructor ()\n    {\n        super (MaterialType.Physical);\n\n        this.metalness = 0.0; // 0.0 .. 1.0\n        this.roughness = 1.0; // 0.0 .. 1.0\n        this.metalnessMap = null;\n    }\n\n    IsEqual (rhs)\n    {\n        if (!super.IsEqual (rhs)) {\n            return false;\n        }\n        if (!IsEqual (this.metalness, rhs.metalness)) {\n            return false;\n        }\n        if (!IsEqual (this.roughness, rhs.roughness)) {\n            return false;\n        }\n        if (!TextureMapIsEqual (this.metalnessMap, rhs.metalnessMap)) {\n            return false;\n        }\n        return true;\n    }\n\n    EnumerateTextureMaps (enumerator)\n    {\n        super.EnumerateTextureMaps (enumerator);\n        if (this.metalnessMap !== null) {\n            enumerator (this.metalnessMap);\n        }\n    }\n}\n\nexport function TextureIsEqual (a, b)\n{\n    if (a.name !== b.name) {\n        return false;\n    }\n    if (a.url !== b.url) {\n        return false;\n    }\n    if (!CoordIsEqual2D (a.offset, b.offset)) {\n        return false;\n    }\n    if (!CoordIsEqual2D (a.scale, b.scale)) {\n        return false;\n    }\n    if (!IsEqual (a.rotation, b.rotation)) {\n        return false;\n    }\n    return true;\n}\n", "import { CrossVector3D, SubCoord3D } from '../geometry/coord3d.js';\nimport { Transformation } from '../geometry/transformation.js';\n\nexport const MeshType =\n{\n    Empty : 0,\n    TriangleMesh : 1\n};\n\nexport function GetMeshType (mesh)\n{\n    if (mesh.TriangleCount () > 0) {\n        return MeshType.TriangleMesh;\n    }\n    return MeshType.Empty;\n}\n\nexport function CalculateTriangleNormal (v0, v1, v2)\n{\n    let v = SubCoord3D (v1, v0);\n    let w = SubCoord3D (v2, v0);\n    let normal = CrossVector3D (v, w);\n    normal.Normalize ();\n    return normal;\n}\n\nexport function TransformMesh (mesh, transformation)\n{\n    if (transformation.IsIdentity ()) {\n        return;\n    }\n\n    for (let i = 0; i < mesh.VertexCount (); i++) {\n        let vertex = mesh.GetVertex (i);\n        let transformed = transformation.TransformCoord3D (vertex);\n        vertex.x = transformed.x;\n        vertex.y = transformed.y;\n        vertex.z = transformed.z;\n    }\n\n    if (mesh.NormalCount () > 0) {\n        let normalMatrix = transformation.GetMatrix ().InvertTranspose ();\n        if (normalMatrix !== null) {\n            let normalTransformation = new Transformation (normalMatrix);\n            for (let i = 0; i < mesh.NormalCount (); i++) {\n                let normal = mesh.GetNormal (i);\n                let transformed = normalTransformation.TransformCoord3D (normal);\n                normal.x = transformed.x;\n                normal.y = transformed.y;\n                normal.z = transformed.z;\n            }\n        }\n    }\n}\n\nexport function FlipMeshTrianglesOrientation (mesh)\n{\n    for (let i = 0; i < mesh.TriangleCount (); i++) {\n        let triangle = mesh.GetTriangle (i);\n        let tmp = triangle.v1;\n        triangle.v1 = triangle.v2;\n        triangle.v2 = tmp;\n    }\n}\n", "import { Coord3D } from './coord3d.js';\n\nexport class Box3D\n{\n    constructor (min, max)\n    {\n        this.min = min;\n        this.max = max;\n    }\n\n    GetMin ()\n    {\n        return this.min;\n    }\n\n    GetMax ()\n    {\n        return this.max;\n    }\n\n    GetCenter ()\n    {\n        return new Coord3D (\n            (this.min.x + this.max.x) / 2.0,\n            (this.min.y + this.max.y) / 2.0,\n            (this.min.z + this.max.z) / 2.0\n        );\n    }\n}\n\nexport class BoundingBoxCalculator3D\n{\n    constructor ()\n    {\n        this.box = new Box3D (\n            new Coord3D (Infinity, Infinity, Infinity),\n            new Coord3D (-Infinity, -Infinity, -Infinity)\n        );\n        this.isValid = false;\n    }\n\n    GetBox ()\n    {\n        if (!this.isValid) {\n            return null;\n        }\n        return this.box;\n    }\n\n    AddPoint (point)\n    {\n        this.box.min.x = Math.min (this.box.min.x, point.x);\n        this.box.min.y = Math.min (this.box.min.y, point.y);\n        this.box.min.z = Math.min (this.box.min.z, point.z);\n        this.box.max.x = Math.max (this.box.max.x, point.x);\n        this.box.max.y = Math.max (this.box.max.y, point.y);\n        this.box.max.z = Math.max (this.box.max.z, point.z);\n        this.isValid = true;\n    }\n}\n", "import { Box3D } from './box3d.js';\nimport { Coord3D, CoordIsEqual3D } from './coord3d.js';\nimport { IsGreaterOrEqual, IsLowerOrEqual } from './geometry.js';\n\nexport class OctreeNode\n{\n    constructor (boundingBox, level)\n    {\n        this.boundingBox = boundingBox;\n        this.level = level;\n        this.pointItems = [];\n        this.childNodes = [];\n    }\n\n    AddPoint (point, data, options)\n    {\n        let node = this.FindNodeForPoint (point);\n        if (node === null) {\n            return false;\n        }\n\n        if (node.FindPointDirectly (point) !== null) {\n            return false;\n        }\n\n        if (node.pointItems.length < options.maxPointsPerNode || node.level >= options.maxTreeDepth) {\n            node.AddPointDirectly (point, data);\n            return true;\n        } else {\n            node.CreateChildNodes ();\n            let oldPointItems = node.pointItems;\n            node.pointItems = [];\n            for (let i = 0; i < oldPointItems.length; i++) {\n                let pointItem = oldPointItems[i];\n                if (!node.AddPoint (pointItem.point, pointItem.data, options)) {\n                    return false;\n                }\n            }\n            return node.AddPoint (point, data, options);\n        }\n    }\n\n    FindPoint (point)\n    {\n        let node = this.FindNodeForPoint (point);\n        if (node === null) {\n            return null;\n        }\n        return node.FindPointDirectly (point);\n    }\n\n    AddPointDirectly (point, data)\n    {\n        this.pointItems.push ({\n            point : point,\n            data : data\n        });\n    }\n\n    FindPointDirectly (point)\n    {\n        for (let i = 0; i < this.pointItems.length; i++) {\n            let pointItem = this.pointItems[i];\n            if (CoordIsEqual3D (point, pointItem.point)) {\n                return pointItem.data;\n            }\n        }\n        return null;\n    }\n\n    FindNodeForPoint (point)\n    {\n        if (!this.IsPointInBounds (point)) {\n            return null;\n        }\n\n        if (this.childNodes.length === 0) {\n            return this;\n        }\n\n        for (let i = 0; i < this.childNodes.length; i++) {\n            let childNode = this.childNodes[i];\n            let foundNode = childNode.FindNodeForPoint (point);\n            if (foundNode !== null) {\n                return foundNode;\n            }\n        }\n\n        return null;\n    }\n\n    CreateChildNodes ()\n    {\n        function AddChildNode (node, minX, minY, minZ, sizeX, sizeY, sizeZ)\n        {\n            let box = new Box3D (\n                new Coord3D (minX, minY, minZ),\n                new Coord3D (minX + sizeX, minY + sizeY, minZ + sizeZ)\n            );\n            node.childNodes.push (new OctreeNode (box, node.level + 1));\n        }\n\n        let min = this.boundingBox.min;\n        let center = this.boundingBox.GetCenter ();\n        let sizeX = (this.boundingBox.max.x - this.boundingBox.min.x) / 2.0;\n        let sizeY = (this.boundingBox.max.y - this.boundingBox.min.y) / 2.0;\n        let sizeZ = (this.boundingBox.max.z - this.boundingBox.min.z) / 2.0;\n\n        AddChildNode (this, min.x, min.y, min.z, sizeX, sizeY, sizeZ);\n        AddChildNode (this, center.x, min.y, min.z, sizeX, sizeY, sizeZ);\n        AddChildNode (this, min.x, center.y, min.z, sizeX, sizeY, sizeZ);\n        AddChildNode (this, center.x, center.y, min.z, sizeX, sizeY, sizeZ);\n        AddChildNode (this, min.x, min.y, center.z, sizeX, sizeY, sizeZ);\n        AddChildNode (this, center.x, min.y, center.z, sizeX, sizeY, sizeZ);\n        AddChildNode (this, min.x, center.y, center.z, sizeX, sizeY, sizeZ);\n        AddChildNode (this, center.x, center.y, center.z, sizeX, sizeY, sizeZ);\n    }\n\n    IsPointInBounds (point)\n    {\n        let isEqual =\n            IsGreaterOrEqual (point.x, this.boundingBox.min.x) &&\n            IsGreaterOrEqual (point.y, this.boundingBox.min.y) &&\n            IsGreaterOrEqual (point.z, this.boundingBox.min.z) &&\n            IsLowerOrEqual (point.x, this.boundingBox.max.x) &&\n            IsLowerOrEqual (point.y, this.boundingBox.max.y) &&\n            IsLowerOrEqual (point.z, this.boundingBox.max.z);\n        return isEqual;\n    }\n}\n\nexport class Octree\n{\n    constructor (boundingBox, options)\n    {\n        this.options = {\n            maxPointsPerNode : 10,\n            maxTreeDepth : 10\n        };\n        if (options !== undefined) {\n            if (options.maxPointsPerNode !== undefined) {\n                this.options.maxPointsPerNode = options.maxPointsPerNode;\n            }\n            if (options.maxTreeDepth !== undefined) {\n                this.options.maxTreeDepth = options.maxTreeDepth;\n            }\n        }\n        this.rootNode = new OctreeNode (boundingBox, 0);\n    }\n\n    AddPoint (point, data)\n    {\n        return this.rootNode.AddPoint (point, data, this.options);\n    }\n\n    FindPoint (point)\n    {\n        return this.rootNode.FindPoint (point);\n    }\n}\n", "export class TopologyVertex\n{\n    constructor ()\n    {\n        this.edges = [];\n        this.triangles = [];\n    }\n}\n\nexport class TopologyEdge\n{\n    constructor (vertex1, vertex2)\n    {\n        this.vertex1 = vertex1;\n        this.vertex2 = vertex2;\n        this.triangles = [];\n    }\n}\n\nexport class TopologyTriangleEdge\n{\n    constructor (edge, reversed)\n    {\n        this.edge = edge;\n        this.reversed = reversed;\n    }\n}\n\nexport class TopologyTriangle\n{\n    constructor ()\n    {\n        this.triEdge1 = null;\n        this.triEdge2 = null;\n        this.triEdge3 = null;\n    }\n}\n\nexport class Topology\n{\n    constructor ()\n    {\n        this.vertices = [];\n        this.edges = [];\n        this.triangleEdges = [];\n        this.triangles = [];\n        this.edgeStartToEndVertexMap = new Map ();\n    }\n\n    AddVertex ()\n    {\n        this.vertices.push (new TopologyVertex ());\n        return this.vertices.length - 1;\n    }\n\n    AddTriangle (vertex1, vertex2, vertex3)\n    {\n        function AddTriangleToVertex (vertices, vertexIndex, triangleIndex)\n        {\n            let vertex = vertices[vertexIndex];\n            vertex.triangles.push (triangleIndex);\n        }\n\n        function AddEdgeToVertex (vertices, triangleEdges, vertexIndex, triangleEdgeIndex)\n        {\n            let vertex = vertices[vertexIndex];\n            let triangleEdge = triangleEdges[triangleEdgeIndex];\n            vertex.edges.push (triangleEdge.edge);\n        }\n\n        function AddTriangleToEdge (edges, triangleEdges, triangleEdgeIndex, triangleIndex)\n        {\n            let triangleEdge = triangleEdges[triangleEdgeIndex];\n            let edge = edges[triangleEdge.edge];\n            edge.triangles.push (triangleIndex);\n        }\n\n        let triangleIndex = this.triangles.length;\n        let triangle = new TopologyTriangle ();\n        triangle.triEdge1 = this.AddTriangleEdge (vertex1, vertex2);\n        triangle.triEdge2 = this.AddTriangleEdge (vertex2, vertex3);\n        triangle.triEdge3 = this.AddTriangleEdge (vertex3, vertex1);\n\n        AddTriangleToVertex (this.vertices, vertex1, triangleIndex);\n        AddTriangleToVertex (this.vertices, vertex2, triangleIndex);\n        AddTriangleToVertex (this.vertices, vertex3, triangleIndex);\n\n        AddEdgeToVertex (this.vertices, this.triangleEdges, vertex1, triangle.triEdge1);\n        AddEdgeToVertex (this.vertices, this.triangleEdges, vertex2, triangle.triEdge2);\n        AddEdgeToVertex (this.vertices, this.triangleEdges, vertex3, triangle.triEdge3);\n\n        AddTriangleToEdge (this.edges, this.triangleEdges, triangle.triEdge1, triangleIndex);\n        AddTriangleToEdge (this.edges, this.triangleEdges, triangle.triEdge2, triangleIndex);\n        AddTriangleToEdge (this.edges, this.triangleEdges, triangle.triEdge3, triangleIndex);\n\n        this.triangles.push (triangle);\n    }\n\n    AddTriangleEdge (vertex1, vertex2)\n    {\n        let startVertex = vertex1;\n        let endVertex = vertex2;\n        let reversed = false;\n        if (vertex2 < vertex1) {\n            startVertex = vertex2;\n            endVertex = vertex1;\n            reversed = true;\n        }\n\n        let edgeIndex = this.AddEdge (startVertex, endVertex);\n        this.triangleEdges.push (new TopologyTriangleEdge (edgeIndex, reversed));\n        return this.triangleEdges.length - 1;\n    }\n\n    AddEdge (startVertex, endVertex)\n    {\n        if (!this.edgeStartToEndVertexMap.has (startVertex)) {\n            this.edgeStartToEndVertexMap.set (startVertex, []);\n        }\n\n        let endVertices = this.edgeStartToEndVertexMap.get (startVertex);\n        for (let i = 0; i < endVertices.length; i++) {\n            let endVertexItem = endVertices[i];\n            if (endVertexItem.endVertex === endVertex) {\n                return endVertexItem.edgeIndex;\n            }\n        }\n\n        let edgeIndex = this.edges.length;\n        endVertices.push ({\n            endVertex : endVertex,\n            edgeIndex : edgeIndex\n        });\n\n        this.edges.push (new TopologyEdge (startVertex, endVertex));\n        return edgeIndex;\n    }\n}\n", "import { BoundingBoxCalculator3D } from '../geometry/box3d.js';\nimport { Octree } from '../geometry/octree.js';\nimport { GetMeshType, MeshType } from './meshutils.js';\nimport { Topology } from './topology.js';\n\nexport function IsModelEmpty (model)\n{\n    let isEmpty = true;\n    model.EnumerateMeshInstances ((meshInstance) => {\n        if (GetMeshType (meshInstance) !== MeshType.Empty) {\n            isEmpty = false;\n        }\n    });\n    return isEmpty;\n}\n\nexport function GetBoundingBox (object3D)\n{\n    let calculator = new BoundingBoxCalculator3D ();\n    object3D.EnumerateVertices ((vertex) => {\n        calculator.AddPoint (vertex);\n    });\n    return calculator.GetBox ();\n}\n\nexport function GetTopology (object3D)\n{\n    function GetVertexIndex (vertex, octree, topology)\n    {\n        let index = octree.FindPoint (vertex);\n        if (index === null) {\n            index = topology.AddVertex ();\n            octree.AddPoint (vertex, index);\n        }\n        return index;\n    }\n\n    let boundingBox = GetBoundingBox (object3D);\n    let octree = new Octree (boundingBox);\n    let topology = new Topology ();\n\n    object3D.EnumerateTriangleVertices ((v0, v1, v2) => {\n        let v0Index = GetVertexIndex (v0, octree, topology);\n        let v1Index = GetVertexIndex (v1, octree, topology);\n        let v2Index = GetVertexIndex (v2, octree, topology);\n        topology.AddTriangle (v0Index, v1Index, v2Index);\n    });\n    return topology;\n}\n\nexport function IsSolid (object3D)\n{\n    function GetEdgeOrientationInTriangle (topology, triangleIndex, edgeIndex)\n    {\n        const triangle = topology.triangles[triangleIndex];\n        const triEdge1 = topology.triangleEdges[triangle.triEdge1];\n        const triEdge2 = topology.triangleEdges[triangle.triEdge2];\n        const triEdge3 = topology.triangleEdges[triangle.triEdge3];\n        if (triEdge1.edge === edgeIndex) {\n            return triEdge1.reversed;\n        }\n        if (triEdge2.edge === edgeIndex) {\n            return triEdge2.reversed;\n        }\n        if (triEdge3.edge === edgeIndex) {\n            return triEdge3.reversed;\n        }\n        return null;\n    }\n\n    const topology = GetTopology (object3D);\n    for (let edgeIndex = 0; edgeIndex < topology.edges.length; edgeIndex++) {\n        const edge = topology.edges[edgeIndex];\n        let triCount = edge.triangles.length;\n        if (triCount === 0 || triCount % 2 !== 0) {\n            return false;\n        }\n        let edgesDirection = 0;\n        for (let triIndex = 0; triIndex < edge.triangles.length; triIndex++) {\n            const triangleIndex = edge.triangles[triIndex];\n            const edgeOrientation = GetEdgeOrientationInTriangle (topology, triangleIndex, edgeIndex);\n            if (edgeOrientation) {\n                edgesDirection += 1;\n            } else {\n                edgesDirection -= 1;\n            }\n        }\n        if (edgesDirection !== 0) {\n            return false;\n        }\n    }\n    return true;\n}\n\nexport function HasDefaultMaterial (model)\n{\n    for (let i = 0; i < model.MaterialCount (); i++) {\n        let material = model.GetMaterial (i);\n        if (material.isDefault && !material.vertexColors) {\n            return true;\n        }\n    }\n    return false;\n}\n\nexport function ReplaceDefaultMaterialColor (model, color)\n{\n    for (let i = 0; i < model.MaterialCount (); i++) {\n        let material = model.GetMaterial (i);\n        if (material.isDefault) {\n            material.color = color;\n        }\n    }\n}\n", "export const PropertyType =\n{\n    Text : 1,\n    Integer : 2,\n    Number : 3,\n    Boolean : 4,\n    Percent : 5,\n    Color : 6\n};\n\nexport class Property\n{\n    constructor (type, name, value)\n    {\n        this.type = type;\n        this.name = name;\n        this.value = value;\n    }\n}\n\nexport class PropertyGroup\n{\n    constructor (name)\n    {\n        this.name = name;\n        this.properties = [];\n    }\n\n    PropertyCount ()\n    {\n        return this.properties.length;\n    }\n\n    AddProperty (property)\n    {\n        this.properties.push (property);\n    }\n\n    GetProperty (index)\n    {\n        return this.properties[index];\n    }\n}\n", "export class Object3D\n{\n    constructor ()\n    {\n\n    }\n\n    VertexCount ()\n    {\n        return 0;\n    }\n\n    VertexColorCount ()\n    {\n        return 0;\n    }\n\n    NormalCount ()\n    {\n        return 0;\n    }\n\n    TextureUVCount ()\n    {\n        return 0;\n    }\n\n    TriangleCount ()\n    {\n        return 0;\n    }\n\n    EnumerateVertices (onVertex)\n    {\n\n    }\n\n    EnumerateTriangleVertexIndices (onTriangleVertexIndices)\n    {\n\n    }\n\n    EnumerateTriangleVertices (onTriangleVertices)\n    {\n\n    }\n}\n\nexport class ModelObject3D extends Object3D\n{\n    constructor ()\n    {\n        super ();\n        this.name = '';\n        this.propertyGroups = [];\n    }\n\n    GetName ()\n    {\n        return this.name;\n    }\n\n    SetName (name)\n    {\n        this.name = name;\n    }\n\n    PropertyGroupCount ()\n    {\n        return this.propertyGroups.length;\n    }\n\n    AddPropertyGroup (propertyGroup)\n    {\n        this.propertyGroups.push (propertyGroup);\n        return this.propertyGroups.length - 1;\n    }\n\n    GetPropertyGroup (index)\n    {\n        return this.propertyGroups[index];\n    }\n}\n", "import { ModelObject3D } from './object.js';\n\nexport class Mesh extends ModelObject3D\n{\n    constructor ()\n    {\n        super ();\n        this.vertices = [];\n        this.vertexColors = [];\n        this.normals = [];\n        this.uvs = [];\n        this.triangles = [];\n    }\n\n    VertexCount ()\n    {\n        return this.vertices.length;\n    }\n\n    VertexColorCount ()\n    {\n        return this.vertexColors.length;\n    }\n\n    NormalCount ()\n    {\n        return this.normals.length;\n    }\n\n    TextureUVCount ()\n    {\n        return this.uvs.length;\n    }\n\n    TriangleCount ()\n    {\n        return this.triangles.length;\n    }\n\n    AddVertex (vertex)\n    {\n        this.vertices.push (vertex);\n        return this.vertices.length - 1;\n    }\n\n    SetVertex (index, vertex)\n    {\n        this.vertices[index] = vertex;\n    }\n\n    GetVertex (index)\n    {\n        return this.vertices[index];\n    }\n\n    AddVertexColor (color)\n    {\n        this.vertexColors.push (color);\n        return this.vertexColors.length - 1;\n    }\n\n    SetVertexColor (index, color)\n    {\n        this.vertexColors[index] = color;\n    }\n\n    GetVertexColor (index)\n    {\n        return this.vertexColors[index];\n    }\n\n    AddNormal (normal)\n    {\n        this.normals.push (normal);\n        return this.normals.length - 1;\n    }\n\n    SetNormal (index, normal)\n    {\n        this.normals[index] = normal;\n    }\n\n    GetNormal (index)\n    {\n        return this.normals[index];\n    }\n\n    AddTextureUV (uv)\n    {\n        this.uvs.push (uv);\n        return this.uvs.length - 1;\n    }\n\n    SetTextureUV (index, uv)\n    {\n        this.uvs[index] = uv;\n    }\n\n    GetTextureUV (index)\n    {\n        return this.uvs[index];\n    }\n\n    AddTriangle (triangle)\n    {\n        this.triangles.push (triangle);\n        return this.triangles.length - 1;\n    }\n\n    GetTriangle (index)\n    {\n        return this.triangles[index];\n    }\n\n    EnumerateVertices (onVertex)\n    {\n        for (const vertex of this.vertices) {\n            onVertex (vertex);\n        }\n    }\n\n    EnumerateTriangleVertexIndices (onTriangleVertexIndices)\n    {\n        for (const triangle of this.triangles) {\n            onTriangleVertexIndices (triangle.v0, triangle.v1, triangle.v2);\n        }\n    }\n\n    EnumerateTriangleVertices (onTriangleVertices)\n    {\n        for (const triangle of this.triangles) {\n            let v0 = this.vertices[triangle.v0];\n            let v1 = this.vertices[triangle.v1];\n            let v2 = this.vertices[triangle.v2];\n            onTriangleVertices (v0, v1, v2);\n        }\n    }\n\n    Clone ()\n    {\n        let cloned = new Mesh ();\n\n        cloned.SetName (this.GetName ());\n\n        for (let i = 0; i < this.VertexCount (); i++) {\n            let vertex = this.GetVertex (i);\n            cloned.AddVertex (vertex.Clone ());\n        }\n\n        for (let i = 0; i < this.VertexColorCount (); i++) {\n            let color = this.GetVertexColor (i);\n            cloned.AddVertexColor (color.Clone ());\n        }\n\n        for (let i = 0; i < this.NormalCount (); i++) {\n            let normal = this.GetNormal (i);\n            cloned.AddNormal (normal.Clone ());\n        }\n\n        for (let i = 0; i < this.TextureUVCount (); i++) {\n            let uv = this.GetTextureUV (i);\n            cloned.AddTextureUV (uv.Clone ());\n        }\n\n        for (let i = 0; i < this.TriangleCount (); i++) {\n            let triangle = this.GetTriangle (i);\n            cloned.AddTriangle (triangle.Clone ());\n        }\n\n        return cloned;\n    }\n}\n", "export class Triangle\n{\n    constructor (v0, v1, v2)\n    {\n        this.v0 = v0;\n        this.v1 = v1;\n        this.v2 = v2;\n\n        this.c0 = null;\n        this.c1 = null;\n        this.c2 = null;\n\n        this.n0 = null;\n        this.n1 = null;\n        this.n2 = null;\n\n        this.u0 = null;\n        this.u1 = null;\n        this.u2 = null;\n\n        this.mat = null;\n        this.curve = null;\n    }\n\n    HasVertices ()\n    {\n        return this.v0 !== null && this.v1 !== null && this.v2 !== null;\n    }\n\n    HasVertexColors ()\n    {\n        return this.c0 !== null && this.c1 !== null && this.c2 !== null;\n    }\n\n    HasNormals ()\n    {\n        return this.n0 !== null && this.n1 !== null && this.n2 !== null;\n    }\n\n    HasTextureUVs ()\n    {\n        return this.u0 !== null && this.u1 !== null && this.u2 !== null;\n    }\n\n    SetVertices (v0, v1, v2)\n    {\n        this.v0 = v0;\n        this.v1 = v1;\n        this.v2 = v2;\n        return this;\n    }\n\n    SetVertexColors (c0, c1, c2)\n    {\n        this.c0 = c0;\n        this.c1 = c1;\n        this.c2 = c2;\n        return this;\n    }\n\n    SetNormals (n0, n1, n2)\n    {\n        this.n0 = n0;\n        this.n1 = n1;\n        this.n2 = n2;\n        return this;\n    }\n\n    SetTextureUVs (u0, u1, u2)\n    {\n        this.u0 = u0;\n        this.u1 = u1;\n        this.u2 = u2;\n        return this;\n    }\n\n    SetMaterial (mat)\n    {\n        this.mat = mat;\n        return this;\n    }\n\n    SetCurve (curve)\n    {\n        this.curve = curve;\n        return this;\n    }\n\n    Clone ()\n    {\n        let cloned = new Triangle (this.v0, this.v1, this.v2);\n        cloned.SetVertexColors (this.c0, this.c1, this.c2);\n        cloned.SetNormals (this.n0, this.n1, this.n2);\n        cloned.SetTextureUVs (this.u0, this.u1, this.u2);\n        cloned.SetMaterial (this.mat);\n        cloned.SetCurve (this.curve);\n        return cloned;\n    }\n}\n", "import { Coord2D } from '../geometry/coord2d.js';\nimport { Coord3D } from '../geometry/coord3d.js';\nimport { ColorFromFloatComponents } from '../model/color.js';\nimport { MaterialType } from '../model/material.js';\nimport { Mesh } from '../model/mesh.js';\nimport { Triangle } from '../model/triangle.js';\n\n// Some mobile devices say that they support mediump, but in reality they don't. At the end\n// all materials rendered as black. This hack renders a single plane with red material and\n// it checks if it's really red. If it's not, then probably there is a driver issue.\n// https://github.com/kovacsv/Online3DViewer/issues/69\nexport function HasHighpDriverIssue ()\n{\n    let canvas = document.createElement ('canvas');\n    document.body.appendChild (canvas);\n    let parameters = {\n        canvas : canvas,\n        antialias : true\n    };\n\n    let renderer = new THREE.WebGLRenderer (parameters);\n    renderer.setClearColor ('#ffffff', 1);\n    renderer.setSize (10, 10);\n\n    let scene = new THREE.Scene ();\n\n    let ambientLight = new THREE.AmbientLight (0x888888);\n    scene.add (ambientLight);\n\n    let light = new THREE.DirectionalLight (0x888888);\n    light.position.set (0.0, 0.0, 1.0);\n    scene.add (light);\n\n    let camera = new THREE.PerspectiveCamera (45.0, 1.0, 0.1, 1000.0);\n    camera.position.set (0.0, 0.0, 1.0);\n    camera.up.set (0.0, 1.0, 0.0);\n    camera.lookAt (new THREE.Vector3 (0.0, 0.0, 0.0));\n    scene.add (camera);\n\n    let plane = new THREE.PlaneGeometry (1.0, 1.0);\n    let mesh = new THREE.Mesh (plane, new THREE.MeshPhongMaterial ({\n        color : 0xcc0000\n    }));\n    scene.add (mesh);\n    renderer.render (scene, camera);\n\n    let context = renderer.getContext ();\n    let pixels = new Uint8Array (4);\n    context.readPixels(\n        5, 5, 1, 1,\n        context.RGBA,\n        context.UNSIGNED_BYTE,\n        pixels\n    );\n\n    document.body.removeChild (canvas);\n\n    let blackThreshold = 50;\n    if (pixels[0] < blackThreshold && pixels[1] < blackThreshold && pixels[2] < blackThreshold) {\n        return true;\n    }\n    return false;\n}\n\nexport const ShadingType =\n{\n    Phong : 1,\n    Physical : 2\n};\n\nexport function GetShadingType (model)\n{\n    let phongCount = 0;\n    let physicalCount = 0;\n    for (let i = 0; i < model.MaterialCount (); i++) {\n        let material = model.GetMaterial (i);\n        if (material.type === MaterialType.Phong) {\n            phongCount += 1;\n        } else if (material.type === MaterialType.Physical) {\n            physicalCount += 1;\n        }\n    }\n    if (phongCount >= physicalCount) {\n        return ShadingType.Phong;\n    } else {\n        return ShadingType.Physical;\n    }\n}\n\nexport function ConvertThreeColorToColor (threeColor)\n{\n    return ColorFromFloatComponents (threeColor.r, threeColor.g, threeColor.b);\n}\n\nexport function ConvertColorToThreeColor (color)\n{\n    return new THREE.Color (\n        color.r / 255.0,\n        color.g / 255.0,\n        color.b / 255.0\n    );\n}\n\nexport function ConvertThreeGeometryToMesh (threeGeometry, materialIndex)\n{\n    let mesh = new Mesh ();\n\n    let vertices = threeGeometry.attributes.position.array;\n    let vertexItemSize = threeGeometry.attributes.position.itemSize || 3;\n    for (let i = 0; i < vertices.length; i += vertexItemSize) {\n        let x = vertices[i];\n        let y = vertices[i + 1];\n        let z = vertices[i + 2];\n        mesh.AddVertex (new Coord3D (x, y, z));\n    }\n\n    let hasVertexColors = (threeGeometry.attributes.color !== undefined);\n    if (hasVertexColors) {\n        let colors = threeGeometry.attributes.color.array;\n        let colorItemSize = threeGeometry.attributes.color.itemSize || 3;\n        for (let i = 0; i < colors.length; i += colorItemSize) {\n            let threeColor = new THREE.Color (colors[i], colors[i + 1], colors[i + 2]);\n            mesh.AddVertexColor (ConvertThreeColorToColor (threeColor));\n        }\n    }\n\n    let hasNormals = (threeGeometry.attributes.normal !== undefined);\n    if (hasNormals) {\n        let normals = threeGeometry.attributes.normal.array;\n        let normalItemSize = threeGeometry.attributes.normal.itemSize || 3;\n        for (let i = 0; i < normals.length; i += normalItemSize) {\n            let x = normals[i];\n            let y = normals[i + 1];\n            let z = normals[i + 2];\n            mesh.AddNormal (new Coord3D (x, y, z));\n        }\n    }\n\n    let hasUVs = (threeGeometry.attributes.uv !== undefined);\n    if (hasUVs) {\n        let uvs = threeGeometry.attributes.uv.array;\n        let uvItemSize = threeGeometry.attributes.uv.itemSize || 2;\n        for (let i = 0; i < uvs.length; i += uvItemSize) {\n            let x = uvs[i];\n            let y = uvs[i + 1];\n            mesh.AddTextureUV (new Coord2D (x, y));\n        }\n    }\n\n    let indices = null;\n    if (threeGeometry.index !== null) {\n        indices = threeGeometry.index.array;\n    } else {\n        indices = [];\n        for (let i = 0; i < vertices.length / 3; i++) {\n            indices.push (i);\n        }\n    }\n\n    for (let i = 0; i < indices.length; i += 3) {\n        let v0 = indices[i];\n        let v1 = indices[i + 1];\n        let v2 = indices[i + 2];\n        let triangle = new Triangle (v0, v1, v2);\n        if (hasVertexColors) {\n            triangle.SetVertexColors (v0, v1, v2);\n        }\n        if (hasNormals) {\n            triangle.SetNormals (v0, v1, v2);\n        }\n        if (hasUVs) {\n            triangle.SetTextureUVs (v0, v1, v2);\n        }\n        if (materialIndex !== null) {\n            triangle.SetMaterial (materialIndex);\n        }\n        mesh.AddTriangle (triangle);\n    }\n\n    return mesh;\n}\n", "import { TransformMesh } from './meshutils.js';\nimport { ModelObject3D } from './object.js';\n\nexport class MeshInstanceId\n{\n    constructor (nodeId, meshIndex)\n    {\n        this.nodeId = nodeId;\n        this.meshIndex = meshIndex;\n    }\n\n    IsEqual (rhs)\n    {\n        return this.nodeId === rhs.nodeId && this.meshIndex === rhs.meshIndex;\n    }\n\n    GetKey ()\n    {\n        return this.nodeId.toString () + ':' + this.meshIndex.toString ();\n    }\n}\n\nexport class MeshInstance extends ModelObject3D\n{\n    constructor (id, node, mesh)\n    {\n        super ();\n        this.id = id;\n        this.node = node;\n        this.mesh = mesh;\n    }\n\n    GetId ()\n    {\n        return this.id;\n    }\n\n    GetTransformation ()\n    {\n        return this.node.GetWorldTransformation ();\n    }\n\n    GetMesh ()\n    {\n        return this.mesh;\n    }\n\n    VertexCount ()\n    {\n        return this.mesh.VertexCount ();\n    }\n\n    VertexColorCount ()\n    {\n        return this.mesh.VertexColorCount ();\n    }\n\n    NormalCount ()\n    {\n        return this.mesh.NormalCount ();\n    }\n\n    TextureUVCount ()\n    {\n        return this.mesh.TextureUVCount ();\n    }\n\n    TriangleCount ()\n    {\n        return this.mesh.TriangleCount ();\n    }\n\n    EnumerateVertices (onVertex)\n    {\n        let transformation = this.node.GetWorldTransformation ();\n        if (transformation.IsIdentity ()) {\n            this.mesh.EnumerateVertices (onVertex);\n        } else {\n            this.mesh.EnumerateVertices ((vertex) => {\n                const transformed = transformation.TransformCoord3D (vertex);\n                onVertex (transformed);\n            });\n        }\n    }\n\n    EnumerateTriangleVertexIndices (onTriangleVertexIndices)\n    {\n        this.mesh.EnumerateTriangleVertexIndices (onTriangleVertexIndices);\n    }\n\n    EnumerateTriangleVertices (onTriangleVertices)\n    {\n        let transformation = this.node.GetWorldTransformation ();\n        if (transformation.IsIdentity ()) {\n            this.mesh.EnumerateTriangleVertices (onTriangleVertices);\n        } else {\n            this.mesh.EnumerateTriangleVertices ((v0, v1, v2) => {\n                const v0Transformed = transformation.TransformCoord3D (v0);\n                const v1Transformed = transformation.TransformCoord3D (v1);\n                const v2Transformed = transformation.TransformCoord3D (v2);\n                onTriangleVertices (v0Transformed, v1Transformed, v2Transformed);\n            });\n        }\n    }\n\n    PropertyGroupCount ()\n    {\n        return this.mesh.PropertyGroupCount ();\n    }\n\n    AddPropertyGroup (propertyGroup)\n    {\n        return this.mesh.AddPropertyGroup (propertyGroup);\n    }\n\n    GetPropertyGroup (index)\n    {\n        return this.mesh.GetPropertyGroup (index);\n    }\n\n    GetTransformedMesh ()\n    {\n        let transformation = this.node.GetWorldTransformation ();\n        let transformed = this.mesh.Clone ();\n        TransformMesh (transformed, transformation);\n        return transformed;\n    }\n}\n", "import { Transformation } from '../geometry/transformation.js';\n\nclass NodeIdGenerator\n{\n    constructor ()\n    {\n        this.nextId = 0;\n    }\n\n    GenerateId ()\n    {\n        const id = this.nextId;\n        this.nextId += 1;\n        return id;\n    }\n}\n\nexport const NodeType =\n{\n    GroupNode : 0,\n    MeshNode : 1\n};\n\nexport class Node\n{\n    constructor ()\n    {\n        this.type = NodeType.GroupNode;\n        this.name = '';\n        this.parent = null;\n        this.transformation = new Transformation ();\n\n        this.childNodes = [];\n        this.meshIndices = [];\n\n        this.idGenerator = new NodeIdGenerator ();\n        this.id = this.idGenerator.GenerateId ();\n    }\n\n    IsEmpty ()\n    {\n        return this.childNodes.length === 0 && this.meshIndices.length === 0;\n    }\n\n    GetType ()\n    {\n        return this.type;\n    }\n\n    SetType (type)\n    {\n        this.type = type;\n    }\n\n    GetId ()\n    {\n        return this.id;\n    }\n\n    GetName ()\n    {\n        return this.name;\n    }\n\n    SetName (name)\n    {\n        this.name = name;\n    }\n\n    HasParent ()\n    {\n        return this.parent !== null;\n    }\n\n    GetParent ()\n    {\n        return this.parent;\n    }\n\n    GetTransformation ()\n    {\n        return this.transformation;\n    }\n\n    GetWorldTransformation ()\n    {\n        let transformation = this.transformation.Clone ();\n        let parent = this.parent;\n        while (parent !== null) {\n            transformation.Append (parent.transformation);\n            parent = parent.parent;\n        }\n        return transformation;\n    }\n\n    SetTransformation (transformation)\n    {\n        this.transformation = transformation;\n    }\n\n    AddChildNode (node)\n    {\n        node.parent = this;\n        node.idGenerator = this.idGenerator;\n        node.id = node.idGenerator.GenerateId ();\n        this.childNodes.push (node);\n        return this.childNodes.length - 1;\n    }\n\n    RemoveChildNode (node)\n    {\n        node.parent = null;\n        let index = this.childNodes.indexOf (node);\n        this.childNodes.splice (index, 1);\n    }\n\n    GetChildNodes ()\n    {\n        return this.childNodes;\n    }\n\n    ChildNodeCount ()\n    {\n        return this.childNodes.length;\n    }\n\n    GetChildNode (index)\n    {\n        return this.childNodes[index];\n    }\n\n    AddMeshIndex (index)\n    {\n        this.meshIndices.push (index);\n        return this.meshIndices.length - 1;\n    }\n\n    MeshIndexCount ()\n    {\n        return this.meshIndices.length;\n    }\n\n    GetMeshIndex (index)\n    {\n        return this.meshIndices[index];\n    }\n\n    GetMeshIndices ()\n    {\n        return this.meshIndices;\n    }\n\n    Enumerate (processor)\n    {\n        processor (this);\n        for (const childNode of this.childNodes) {\n            childNode.Enumerate (processor);\n        }\n    }\n\n    EnumerateChildren (processor)\n    {\n        for (const childNode of this.childNodes) {\n            processor (childNode);\n            childNode.EnumerateChildren (processor);\n        }\n    }\n\n    EnumerateMeshIndices (processor)\n    {\n        for (const meshIndex of this.meshIndices) {\n            processor (meshIndex);\n        }\n        for (const childNode of this.childNodes) {\n            childNode.EnumerateMeshIndices (processor);\n        }\n    }\n}\n", "import { MeshInstance, MeshInstanceId } from './meshinstance.js';\nimport { Node } from './node.js';\nimport { ModelObject3D } from './object.js';\n\nexport class Model extends ModelObject3D\n{\n    constructor ()\n    {\n        super ();\n        this.root = new Node ();\n        this.materials = [];\n        this.meshes = [];\n    }\n\n    GetRootNode ()\n    {\n        return this.root;\n    }\n\n    MaterialCount ()\n    {\n        return this.materials.length;\n    }\n\n    MeshCount ()\n    {\n        return this.meshes.length;\n    }\n\n    MeshInstanceCount ()\n    {\n        let count = 0;\n        this.root.Enumerate ((node) => {\n            count += node.MeshIndexCount ();\n        });\n        return count;\n    }\n\n    VertexCount ()\n    {\n        let count = 0;\n        this.EnumerateMeshInstances ((meshInstance) => {\n            count += meshInstance.VertexCount ();\n        });\n        return count;\n    }\n\n    VertexColorCount ()\n    {\n        let count = 0;\n        this.EnumerateMeshInstances ((meshInstance) => {\n            count += meshInstance.VertexColorCount ();\n        });\n        return count;\n    }\n\n    NormalCount ()\n    {\n        let count = 0;\n        this.EnumerateMeshInstances ((meshInstance) => {\n            count += meshInstance.NormalCount ();\n        });\n        return count;\n    }\n\n    TextureUVCount ()\n    {\n        let count = 0;\n        this.EnumerateMeshInstances ((meshInstance) => {\n            count += meshInstance.TextureUVCount ();\n        });\n        return count;\n    }\n\n    TriangleCount ()\n    {\n        let count = 0;\n        this.EnumerateMeshInstances ((meshInstance) => {\n            count += meshInstance.TriangleCount ();\n        });\n        return count;\n    }\n\n    AddMaterial (material)\n    {\n        this.materials.push (material);\n        return this.materials.length - 1;\n    }\n\n    GetMaterial (index)\n    {\n        return this.materials[index];\n    }\n\n    AddMesh (mesh)\n    {\n        this.meshes.push (mesh);\n        return this.meshes.length - 1;\n    }\n\n    AddMeshToRootNode (mesh)\n    {\n        const meshIndex = this.AddMesh (mesh);\n        this.root.AddMeshIndex (meshIndex);\n        return meshIndex;\n    }\n\n    RemoveMesh (index)\n    {\n        this.meshes.splice (index, 1);\n        this.root.Enumerate ((node) => {\n            for (let i = 0; i < node.meshIndices.length; i++) {\n                if (node.meshIndices[i] === index) {\n                    node.meshIndices.splice (i, 1);\n                    i -= 1;\n                } else if (node.meshIndices[i] > index) {\n                    node.meshIndices[i] -= 1;\n                }\n            }\n        });\n    }\n\n    GetMesh (index)\n    {\n        return this.meshes[index];\n    }\n\n    GetMeshInstance (instanceId)\n    {\n        let foundNode = null;\n        this.root.Enumerate ((node) => {\n            if (node.GetId () === instanceId.nodeId) {\n                foundNode = node;\n            }\n        });\n        if (foundNode === null) {\n            return null;\n        }\n        const nodeMeshIndices = foundNode.GetMeshIndices ();\n        if (nodeMeshIndices.indexOf (instanceId.meshIndex) === -1) {\n            return null;\n        }\n        let foundMesh = this.GetMesh (instanceId.meshIndex);\n        let id = new MeshInstanceId (foundNode.GetId (), instanceId.meshIndex);\n        return new MeshInstance (id, foundNode, foundMesh);\n    }\n\n    EnumerateMeshes (onMesh)\n    {\n        for (const mesh of this.meshes) {\n            onMesh (mesh);\n        }\n    }\n\n    EnumerateMeshInstances (onMeshInstance)\n    {\n        this.root.Enumerate ((node) => {\n            for (let meshIndex of node.GetMeshIndices ()) {\n                let id = new MeshInstanceId (node.GetId (), meshIndex);\n                let mesh = this.GetMesh (meshIndex);\n                let meshInstance = new MeshInstance (id, node, mesh);\n                onMeshInstance (meshInstance);\n            }\n        });\n    }\n\n    EnumerateTransformedMeshes (onMesh)\n    {\n        this.EnumerateMeshInstances ((meshInstance) => {\n            const transformed = meshInstance.GetTransformedMesh ();\n            onMesh (transformed);\n        });\n    }\n\n    EnumerateVertices (onVertex)\n    {\n        this.EnumerateMeshInstances ((meshInstance) => {\n            meshInstance.EnumerateVertices (onVertex);\n        });\n    }\n\n    EnumerateTriangleVertexIndices (onTriangleVertexIndices)\n    {\n        this.EnumerateMeshInstances ((meshInstance) => {\n            meshInstance.EnumerateTriangleVertexIndices (onTriangleVertexIndices);\n        });\n    }\n\n    EnumerateTriangleVertices (onTriangleVertices)\n    {\n        this.EnumerateMeshInstances ((meshInstance) => {\n            meshInstance.EnumerateTriangleVertices (onTriangleVertices);\n        });\n    }\n}\n", "export function IsDefined (val)\n{\n    return val !== undefined && val !== null;\n}\n\nexport function ValueOrDefault (val, def)\n{\n    if (val === undefined || val === null) {\n        return def;\n    }\n    return val;\n}\n\nexport function CopyObjectAttributes (src, dest)\n{\n    if (!IsDefined (src)) {\n        return;\n    }\n    for (let attribute of Object.keys (src)) {\n        if (IsDefined (src[attribute])) {\n            dest[attribute] = src[attribute];\n        }\n    }\n}\n", "import { CopyObjectAttributes } from '../core/core.js';\nimport { AddCoord3D, Coord3D, CoordIsEqual3D } from '../geometry/coord3d.js';\nimport { Color } from './color.js';\nimport { PhongMaterial } from './material.js';\nimport { CalculateTriangleNormal, GetMeshType, MeshType } from './meshutils.js';\n\nclass ModelFinalizer\n{\n    constructor (params)\n    {\n        this.params = {\n            getDefaultMaterialColor : () => {\n                return new Color (0, 0, 0);\n            }\n        };\n        CopyObjectAttributes (params, this.params);\n        this.defaultMaterialIndex = null;\n    }\n\n    Finalize (model)\n    {\n        this.Reset ();\n\n        this.FinalizeMeshes (model);\n        this.FinalizeMaterials (model);\n        this.FinalizeNodes (model);\n    }\n\n    FinalizeMaterials (model)\n    {\n        let hasVertexColors = (model.VertexColorCount () > 0);\n        if (!hasVertexColors) {\n            return;\n        }\n\n        let materialHasVertexColors = new Map ();\n        for (let meshIndex = 0; meshIndex < model.MeshCount (); meshIndex++) {\n            let mesh = model.GetMesh (meshIndex);\n            for (let triangleIndex = 0; triangleIndex < mesh.TriangleCount (); triangleIndex++) {\n                let triangle = mesh.GetTriangle (triangleIndex);\n                let hasVertexColors = triangle.HasVertexColors ();\n                if (!materialHasVertexColors.has (triangle.mat)) {\n                    materialHasVertexColors.set (triangle.mat, hasVertexColors);\n                } else if (!hasVertexColors) {\n                    materialHasVertexColors.set (triangle.mat, false);\n                }\n            }\n        }\n\n        for (let [materialIndex, hasVertexColors] of materialHasVertexColors) {\n            let material = model.GetMaterial (materialIndex);\n            material.vertexColors = hasVertexColors;\n        }\n    }\n\n    FinalizeMeshes (model)\n    {\n        for (let meshIndex = 0; meshIndex < model.MeshCount (); meshIndex++) {\n            let mesh = model.GetMesh (meshIndex);\n            let type = GetMeshType (mesh);\n            if (type === MeshType.Empty) {\n                model.RemoveMesh (meshIndex);\n                meshIndex = meshIndex - 1;\n                continue;\n            }\n            this.FinalizeMesh (model, mesh);\n        }\n    }\n\n    FinalizeMesh (model, mesh)\n    {\n        function CalculateCurveNormals (mesh)\n        {\n            function AddAverageNormal (mesh, triangle, vertexIndex, triangleNormals, vertexToTriangles)\n            {\n                function IsNormalInArray (array, normal)\n                {\n                    for (let i = 0; i < array.length; i++) {\n                        let current = array[i];\n                        if (CoordIsEqual3D (current, normal)) {\n                            return true;\n                        }\n                    }\n                    return false;\n                }\n\n                let averageNormals = [];\n                let neigTriangles = vertexToTriangles.get (vertexIndex);\n                for (let i = 0; i < neigTriangles.length; i++) {\n                    let neigIndex = neigTriangles[i];\n                    let neigTriangle = mesh.GetTriangle (neigIndex);\n                    if (triangle.curve === neigTriangle.curve) {\n                        let triangleNormal = triangleNormals[neigIndex];\n                        if (!IsNormalInArray (averageNormals, triangleNormal)) {\n                            averageNormals.push (triangleNormal);\n                        }\n                    }\n                }\n\n                let averageNormal = new Coord3D (0.0, 0.0, 0.0);\n                for (let i = 0; i < averageNormals.length; i++) {\n                    averageNormal = AddCoord3D (averageNormal, averageNormals[i]);\n                }\n                averageNormal.MultiplyScalar (1.0 / averageNormals.length);\n                averageNormal.Normalize ();\n                return mesh.AddNormal (averageNormal);\n            }\n\n            let triangleNormals = [];\n            let vertexToTriangles = new Map ();\n\n            for (let vertexIndex = 0; vertexIndex < mesh.VertexCount (); vertexIndex++) {\n                vertexToTriangles.set (vertexIndex, []);\n            }\n\n            for (let triangleIndex = 0; triangleIndex < mesh.TriangleCount (); triangleIndex++) {\n                let triangle = mesh.GetTriangle (triangleIndex);\n                let v0 = mesh.GetVertex (triangle.v0);\n                let v1 = mesh.GetVertex (triangle.v1);\n                let v2 = mesh.GetVertex (triangle.v2);\n                let normal = CalculateTriangleNormal (v0, v1, v2);\n                triangleNormals.push (normal);\n                vertexToTriangles.get (triangle.v0).push (triangleIndex);\n                vertexToTriangles.get (triangle.v1).push (triangleIndex);\n                vertexToTriangles.get (triangle.v2).push (triangleIndex);\n            }\n\n            for (let triangleIndex = 0; triangleIndex < mesh.TriangleCount (); triangleIndex++) {\n                let triangle = mesh.GetTriangle (triangleIndex);\n                if (!triangle.HasNormals ()) {\n                    let n0 = AddAverageNormal (mesh, triangle, triangle.v0, triangleNormals, vertexToTriangles);\n                    let n1 = AddAverageNormal (mesh, triangle, triangle.v1, triangleNormals, vertexToTriangles);\n                    let n2 = AddAverageNormal (mesh, triangle, triangle.v2, triangleNormals, vertexToTriangles);\n                    triangle.SetNormals (n0, n1, n2);\n                }\n            }\n        }\n\n        let meshStatus = {\n            calculateCurveNormals : false\n        };\n\n        for (let i = 0; i < mesh.TriangleCount (); i++) {\n            let triangle = mesh.GetTriangle (i);\n            this.FinalizeTriangle (mesh, triangle, meshStatus);\n\n            if (triangle.mat === null) {\n                triangle.mat = this.GetDefaultMaterialIndex (model);\n            }\n        }\n\n        if (meshStatus.calculateCurveNormals) {\n            CalculateCurveNormals (mesh);\n        }\n    }\n\n    FinalizeTriangle (mesh, triangle, meshStatus)\n    {\n        if (!triangle.HasNormals ()) {\n            if (triangle.curve === null || triangle.curve === 0) {\n                let v0 = mesh.GetVertex (triangle.v0);\n                let v1 = mesh.GetVertex (triangle.v1);\n                let v2 = mesh.GetVertex (triangle.v2);\n                let normal = CalculateTriangleNormal (v0, v1, v2);\n                let normalIndex = mesh.AddNormal (normal);\n                triangle.SetNormals (normalIndex, normalIndex, normalIndex);\n            } else {\n                meshStatus.calculateCurveNormals = true;\n            }\n        }\n\n        if (triangle.curve === null) {\n            triangle.curve = 0;\n        }\n    }\n\n    FinalizeNodes (model)\n    {\n        let rootNode = model.GetRootNode ();\n\n        let emptyNodes = [];\n        rootNode.EnumerateChildren ((node) => {\n            if (node.IsEmpty ()) {\n                emptyNodes.push (node);\n            }\n        });\n\n        for (let nodeIndex = 0; nodeIndex < emptyNodes.length; nodeIndex++) {\n            let node = emptyNodes[nodeIndex];\n            let parentNode = node.GetParent ();\n            if (parentNode === null) {\n                continue;\n            }\n            parentNode.RemoveChildNode (node);\n            if (parentNode.IsEmpty ()) {\n                emptyNodes.push (parentNode);\n            }\n        }\n    }\n\n    GetDefaultMaterialIndex (model)\n    {\n        if (this.defaultMaterialIndex === null) {\n            let defaultMaterialColor = this.params.getDefaultMaterialColor ();\n            let defaultMaterial = new PhongMaterial ();\n            defaultMaterial.color = defaultMaterialColor;\n            defaultMaterial.isDefault = true;\n            this.defaultMaterialIndex = model.AddMaterial (defaultMaterial);\n        }\n        return this.defaultMaterialIndex;\n    }\n\n    Reset ()\n    {\n        this.defaultMaterialIndex = null;\n    }\n}\n\nexport function FinalizeModel (model, params)\n{\n    let finalizer = new ModelFinalizer (params);\n    finalizer.Finalize (model);\n}\n\nexport function CheckModel (model)\n{\n    function IsCorrectValue (val)\n    {\n        if (val === undefined || val === null) {\n            return false;\n        }\n        return true;\n    }\n\n    function IsCorrectNumber (val)\n    {\n        if (!IsCorrectValue (val)) {\n            return false;\n        }\n        if (isNaN (val)) {\n            return false;\n        }\n        return true;\n    }\n\n    function IsCorrectIndex (val, count)\n    {\n        if (!IsCorrectNumber (val)) {\n            return false;\n        }\n        if (val < 0 || val >= count) {\n            return false;\n        }\n        return true;\n    }\n\n    function CheckMesh (model, mesh)\n    {\n        function CheckTriangle (model, mesh, triangle)\n        {\n            if (!IsCorrectIndex (triangle.v0, mesh.VertexCount ())) {\n                return false;\n            }\n            if (!IsCorrectIndex (triangle.v1, mesh.VertexCount ())) {\n                return false;\n            }\n            if (!IsCorrectIndex (triangle.v2, mesh.VertexCount ())) {\n                return false;\n            }\n            if (triangle.HasVertexColors ()) {\n                if (!IsCorrectIndex (triangle.c0, mesh.VertexColorCount ())) {\n                    return false;\n                }\n                if (!IsCorrectIndex (triangle.c1, mesh.VertexColorCount ())) {\n                    return false;\n                }\n                if (!IsCorrectIndex (triangle.c2, mesh.VertexColorCount ())) {\n                    return false;\n                }\n            }\n            if (!IsCorrectIndex (triangle.n0, mesh.NormalCount ())) {\n                return false;\n            }\n            if (!IsCorrectIndex (triangle.n1, mesh.NormalCount ())) {\n                return false;\n            }\n            if (!IsCorrectIndex (triangle.n2, mesh.NormalCount ())) {\n                return false;\n            }\n            if (triangle.HasTextureUVs ()) {\n                if (!IsCorrectIndex (triangle.u0, mesh.TextureUVCount ())) {\n                    return false;\n                }\n                    if (!IsCorrectIndex (triangle.u1, mesh.TextureUVCount ())) {\n                    return false;\n                }\n                if (!IsCorrectIndex (triangle.u2, mesh.TextureUVCount ())) {\n                    return false;\n                }\n            }\n            if (!IsCorrectIndex (triangle.mat, model.MaterialCount ())) {\n                return false;\n            }\n            if (!IsCorrectNumber (triangle.curve)) {\n                return false;\n            }\n\n            return true;\n        }\n\n        for (let i = 0; i < mesh.VertexCount (); i++) {\n            let vertex = mesh.GetVertex (i);\n            if (!IsCorrectNumber (vertex.x)) {\n                return false;\n            }\n            if (!IsCorrectNumber (vertex.y)) {\n                return false;\n            }\n            if (!IsCorrectNumber (vertex.z)) {\n                return false;\n            }\n        }\n\n        for (let i = 0; i < mesh.VertexColorCount (); i++) {\n            let color = mesh.GetVertexColor (i);\n            if (!IsCorrectNumber (color.r)) {\n                return false;\n            }\n            if (!IsCorrectNumber (color.g)) {\n                return false;\n            }\n            if (!IsCorrectNumber (color.b)) {\n                return false;\n            }\n        }\n\n        for (let i = 0; i < mesh.NormalCount (); i++) {\n            let normal = mesh.GetNormal (i);\n            if (!IsCorrectNumber (normal.x)) {\n                return false;\n            }\n            if (!IsCorrectNumber (normal.y)) {\n                return false;\n            }\n            if (!IsCorrectNumber (normal.z)) {\n                return false;\n            }\n        }\n\n        for (let i = 0; i < mesh.TextureUVCount (); i++) {\n            let uv = mesh.GetTextureUV (i);\n            if (!IsCorrectNumber (uv.x)) {\n                return false;\n            }\n            if (!IsCorrectNumber (uv.y)) {\n                return false;\n            }\n        }\n\n        for (let i = 0; i < mesh.TriangleCount (); i++) {\n            let triangle = mesh.GetTriangle (i);\n            if (!CheckTriangle (model, mesh, triangle)) {\n                return false;\n            }\n        }\n\n        return true;\n    }\n\n    for (let i = 0; i < model.MeshCount (); i++) {\n        let mesh = model.GetMesh (i);\n        if (!CheckMesh (model, mesh)) {\n            return false;\n        }\n    }\n\n    return true;\n}\n", "import { Direction } from '../geometry/geometry.js';\nimport { Model } from '../model/model.js';\nimport { FinalizeModel } from '../model/modelfinalization.js';\nimport { IsModelEmpty } from '../model/modelutils.js';\n\nexport class ImporterBase\n{\n    constructor ()\n    {\n        this.name = null;\n        this.extension = null;\n        this.callbacks = null;\n        this.model = null;\n        this.error = null;\n        this.message = null;\n    }\n\n    Import (name, extension, content, callbacks)\n    {\n        this.Clear ();\n\n        this.name = name;\n        this.extension = extension;\n        this.callbacks = callbacks;\n        this.model = new Model ();\n        this.error = false;\n        this.message = null;\n        this.ResetContent ();\n        this.ImportContent (content, () => {\n            this.CreateResult (callbacks);\n        });\n    }\n\n    Clear ()\n    {\n        this.name = null;\n        this.extension = null;\n        this.callbacks = null;\n        this.model = null;\n        this.error = null;\n        this.message = null;\n        this.ClearContent ();\n    }\n\n    CreateResult (callbacks)\n    {\n        if (this.error) {\n            callbacks.onError ();\n            callbacks.onComplete ();\n            return;\n        }\n\n        if (IsModelEmpty (this.model)) {\n            this.SetError ('The model doesn\\'t contain any meshes.');\n            callbacks.onError ();\n            callbacks.onComplete ();\n            return;\n        }\n\n        FinalizeModel (this.model, {\n            getDefaultMaterialColor : this.callbacks.getDefaultMaterialColor\n        });\n\n        callbacks.onSuccess ();\n        callbacks.onComplete ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return false;\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Z;\n    }\n\n    ClearContent ()\n    {\n\n    }\n\n    ResetContent ()\n    {\n\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n\n    }\n\n    GetModel ()\n    {\n        return this.model;\n    }\n\n    SetError (message)\n    {\n        this.error = true;\n        if (message !== undefined && message !== null) {\n            this.message = message;\n        }\n    }\n\n    WasError ()\n    {\n        return this.error;\n    }\n\n    GetErrorMessage ()\n    {\n        return this.message;\n    }\n}\n", "import { IsLower } from '../geometry/geometry.js';\nimport { ColorToHexString } from '../model/color.js';\n\nexport function NameFromLine (line, startIndex, commentChar)\n{\n\tlet name = line.substring (startIndex);\n\tlet commentStart = name.indexOf (commentChar);\n\tif (commentStart !== -1) {\n\t\tname = name.substring (0, commentStart);\n\t}\n\treturn name.trim ();\n}\n\nexport function ParametersFromLine (line, commentChar)\n{\n\tif (commentChar !== null) {\n\t\tlet commentStart = line.indexOf (commentChar);\n\t\tif (commentStart !== -1) {\n\t\t\tline = line.substring (0, commentStart).trim ();\n\t\t}\n\t}\n\treturn line.split (/\\s+/u);\n}\n\nexport function ReadLines (str, onLine)\n{\n\tfunction LineFound (line, onLine)\n\t{\n\t\tlet trimmed = line.trim ();\n\t\tif (trimmed.length > 0) {\n\t\t\tonLine (trimmed);\n\t\t}\n\t}\n\n\tlet cursor = 0;\n\tlet next = str.indexOf ('\\n', cursor);\n\twhile (next !== -1) {\n\t\tLineFound (str.substring (cursor, next), onLine);\n\t\tcursor = next + 1;\n\t\tnext = str.indexOf ('\\n', cursor);\n\t}\n\tLineFound (str.substring (cursor), onLine);\n}\n\nexport function IsPowerOfTwo (x)\n{\n\treturn (x & (x - 1)) === 0;\n}\n\nexport function NextPowerOfTwo (x)\n{\n\tif (IsPowerOfTwo (x)) {\n\t\treturn x;\n\t}\n\tlet npot = Math.pow (2, Math.ceil (Math.log (x) / Math.log (2)));\n\treturn parseInt (npot, 10);\n}\n\nexport function UpdateMaterialTransparency (material)\n{\n\tmaterial.transparent = false;\n\tif (IsLower (material.opacity, 1.0)) {\n\t\tmaterial.transparent = true;\n\t}\n}\n\nexport class ColorToMaterialConverter\n{\n\tconstructor (createMaterialFunc)\n\t{\n\t\tthis.createMaterialFunc = createMaterialFunc;\n\t\tthis.colorToMaterialIndex = new Map ();\n\t}\n\n\tGetMaterialIndex (color)\n\t{\n\t\tlet colorKey = ColorToHexString (color);\n\t\tif (this.colorToMaterialIndex.has (colorKey)) {\n\t\t\treturn this.colorToMaterialIndex.get (colorKey);\n\t\t} else {\n\t\t\tlet materialIndex = this.createMaterialFunc (color);\n\t\t\tthis.colorToMaterialIndex.set (colorKey, materialIndex);\n\t\t\treturn materialIndex;\n\t\t}\n\t}\n}\n", "import { Direction } from '../geometry/geometry.js';\nimport { Matrix } from '../geometry/matrix.js';\nimport { Transformation } from '../geometry/transformation.js';\nimport { LoadExternalLibrary } from '../io/externallibs.js';\nimport { GetFileName } from '../io/fileutils.js';\nimport { PhongMaterial, PhysicalMaterial } from '../model/material.js';\nimport { TransformMesh } from '../model/meshutils.js';\nimport { IsModelEmpty } from '../model/modelutils.js';\nimport { Property, PropertyGroup, PropertyType } from '../model/property.js';\nimport { ConvertThreeGeometryToMesh } from '../threejs/threeutils.js';\nimport { ImporterBase } from './importerbase.js';\nimport { UpdateMaterialTransparency } from './importerutils.js';\nimport { TextureMap } from '../model/material.js';\n\nexport class Importer3dm extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n        this.rhino = null;\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === '3dm';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Z;\n    }\n\n    ClearContent ()\n    {\n        this.instanceIdToObject = null;\n        this.instanceIdToDefinition = null;\n    }\n\n    ResetContent ()\n    {\n        this.instanceIdToObject = new Map ();\n        this.instanceIdToDefinition = new Map ();\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        if (this.rhino === null) {\n            LoadExternalLibrary ('loaders/rhino3dm.min.js').then (() => {\n                rhino3dm ().then ((rhino) => {\n                    this.rhino = rhino;\n                    this.ImportRhinoContent (fileContent);\n                    onFinish ();\n                });\n            }).catch (() => {\n                this.SetError ('Failed to load rhino3dm.');\n                onFinish ();\n            });\n        } else {\n            this.ImportRhinoContent (fileContent);\n            onFinish ();\n        }\n    }\n\n    ImportRhinoContent (fileContent)\n    {\n        let rhinoDoc = this.rhino.File3dm.fromByteArray (fileContent);\n        if (rhinoDoc === null) {\n            this.SetError ('Failed to read Rhino file.');\n            return;\n        }\n        this.ImportRhinoDocument (rhinoDoc);\n        if (IsModelEmpty (this.model)) {\n            this.SetError ('The model doesn\\'t contain any 3D meshes. Try to save the model while you are in shaded view in Rhino.');\n        }\n    }\n\n    ImportRhinoDocument (rhinoDoc)\n    {\n        this.InitRhinoInstances (rhinoDoc);\n        this.ImportRhinoUserStrings (rhinoDoc);\n        this.ImportRhinoGeometry (rhinoDoc);\n    }\n\n    InitRhinoInstances (rhinoDoc)\n    {\n        let rhinoObjects = rhinoDoc.objects ();\n        for (let i = 0; i < rhinoObjects.count; i++) {\n            let rhinoObject = rhinoObjects.get (i);\n            let rhinoAttributes = rhinoObject.attributes ();\n            if (rhinoAttributes.isInstanceDefinitionObject) {\n                this.instanceIdToObject.set (rhinoAttributes.id, rhinoObject);\n            }\n        }\n        let rhinoInstanceDefinitions = rhinoDoc.instanceDefinitions ();\n        for (let i = 0; i < rhinoInstanceDefinitions.count (); i++) {\n            let rhinoInstanceDefinition = rhinoInstanceDefinitions.get (i);\n            this.instanceIdToDefinition.set (rhinoInstanceDefinition.id, rhinoInstanceDefinition);\n        }\n    }\n\n    ImportRhinoUserStrings (rhinoDoc)\n    {\n        let docStrings = rhinoDoc.strings ();\n        if (docStrings.count () > 0) {\n            let propertyGroup = new PropertyGroup ('Document user texts');\n            for (let i = 0; i < docStrings.count (); i++) {\n                let docString = docStrings.get (i);\n                propertyGroup.AddProperty (new Property (PropertyType.Text, docString[0], docString[1]));\n            }\n            this.model.AddPropertyGroup (propertyGroup);\n        }\n    }\n\n    ImportRhinoGeometry (rhinoDoc)\n    {\n        let rhinoObjects = rhinoDoc.objects ();\n        for (let i = 0; i < rhinoObjects.count; i++) {\n            let rhinoObject = rhinoObjects.get (i);\n            this.ImportRhinoGeometryObject (rhinoDoc, rhinoObject, []);\n        }\n    }\n\n    ImportRhinoGeometryObject (rhinoDoc, rhinoObject, rhinoInstanceReferences)\n    {\n        let rhinoGeometry = rhinoObject.geometry ();\n        let rhinoAttributes = rhinoObject.attributes ();\n\n        let objectType = rhinoGeometry.objectType;\n        if (rhinoAttributes.isInstanceDefinitionObject && rhinoInstanceReferences.length === 0) {\n            return;\n        }\n\n        let rhinoMesh = null;\n        let deleteMesh = false;\n\n        if (objectType === this.rhino.ObjectType.Mesh) {\n            rhinoMesh = rhinoGeometry;\n            deleteMesh = false;\n        } else if (objectType === this.rhino.ObjectType.Extrusion) {\n            rhinoMesh = rhinoGeometry.getMesh (this.rhino.MeshType.Any);\n            deleteMesh = true;\n        } else if (objectType === this.rhino.ObjectType.Brep) {\n            rhinoMesh = new this.rhino.Mesh ();\n            let faces = rhinoGeometry.faces ();\n            for (let i = 0; i < faces.count; i++) {\n                let face = faces.get (i);\n                let mesh = face.getMesh (this.rhino.MeshType.Any);\n                if (mesh) {\n                    rhinoMesh.append (mesh);\n                    mesh.delete ();\n                }\n                face.delete ();\n            }\n            faces.delete ();\n            rhinoMesh.compact ();\n            deleteMesh = true;\n        } else if (objectType === this.rhino.ObjectType.SubD) {\n            rhinoGeometry.subdivide (3);\n            rhinoMesh = this.rhino.Mesh.createFromSubDControlNet (rhinoGeometry);\n            deleteMesh = true;\n        } else if (objectType === this.rhino.ObjectType.InstanceReference) {\n            let parentDefinitionId = rhinoGeometry.parentIdefId;\n            if (this.instanceIdToDefinition.has (parentDefinitionId)) {\n                let instanceDefinition = this.instanceIdToDefinition.get (parentDefinitionId);\n                let instanceObjectIds = instanceDefinition.getObjectIds ();\n                for (let i = 0; i < instanceObjectIds.length; i++) {\n                    let instanceObjectId = instanceObjectIds[i];\n                    if (this.instanceIdToObject.has (instanceObjectId)) {\n                        let instanceObject = this.instanceIdToObject.get (instanceObjectId);\n                        rhinoInstanceReferences.push (rhinoObject);\n                        this.ImportRhinoGeometryObject (rhinoDoc, instanceObject, rhinoInstanceReferences);\n                        rhinoInstanceReferences.pop ();\n                    }\n                }\n            }\n        }\n\n        if (rhinoMesh !== null) {\n            this.ImportRhinoMesh (rhinoDoc, rhinoMesh, rhinoObject, rhinoInstanceReferences);\n            if (deleteMesh) {\n                rhinoMesh.delete ();\n            }\n        }\n    }\n\n    ImportRhinoMesh (rhinoDoc, rhinoMesh, rhinoObject, rhinoInstanceReferences)\n    {\n        let rhinoAttributes = rhinoObject.attributes ();\n\n        let materialIndex = this.GetMaterialIndex (rhinoDoc, rhinoObject, rhinoInstanceReferences);\n        let threeJson = rhinoMesh.toThreejsJSON ();\n        let mesh = ConvertThreeGeometryToMesh (threeJson.data, materialIndex);\n        mesh.SetName (rhinoAttributes.name);\n\n        let userStrings = rhinoAttributes.getUserStrings ();\n        if (userStrings.length > 0) {\n            let propertyGroup = new PropertyGroup ('User texts');\n            for (let i = 0; i < userStrings.length; i++) {\n                let userString = userStrings[i];\n                propertyGroup.AddProperty (new Property (PropertyType.Text, userString[0], userString[1]));\n            }\n            mesh.AddPropertyGroup (propertyGroup);\n        }\n\n        if (rhinoInstanceReferences.length !== 0) {\n            let matrix = new Matrix ().CreateIdentity ();\n            for (let i = rhinoInstanceReferences.length - 1; i >= 0; i--) {\n                let rhinoInstanceReference = rhinoInstanceReferences[i];\n                let rhinoInstanceReferenceGeometry = rhinoInstanceReference.geometry ();\n                let rhinoInstanceReferenceMatrix = rhinoInstanceReferenceGeometry.xform.toFloatArray (false);\n                let transformationMatrix = new Matrix (rhinoInstanceReferenceMatrix);\n                matrix = matrix.MultiplyMatrix (transformationMatrix);\n            }\n            let transformation = new Transformation (matrix);\n            TransformMesh (mesh, transformation);\n        }\n        this.model.AddMeshToRootNode (mesh);\n    }\n\n    GetMaterialIndex (rhinoDoc, rhinoObject, rhinoInstanceReferences)\n    {\n        function GetRhinoMaterial (rhino, rhinoObject, rhinoInstanceReferences)\n        {\n            let rhinoAttributes = rhinoObject.attributes ();\n            if (rhinoAttributes.materialSource === rhino.ObjectMaterialSource.MaterialFromObject) {\n                let materialIndex = rhinoAttributes.materialIndex;\n                if (materialIndex > -1) {\n                    return rhinoDoc.materials ().get (materialIndex);\n                }\n            } else if (rhinoAttributes.materialSource === rhino.ObjectMaterialSource.MaterialFromLayer) {\n                let layerIndex = rhinoAttributes.layerIndex;\n                if (layerIndex > -1) {\n                    let layer = rhinoDoc.layers ().get (layerIndex);\n                    let layerMaterialIndex = layer.renderMaterialIndex;\n                    if (layerMaterialIndex > -1) {\n                        return rhinoDoc.materials ().get (layerMaterialIndex);\n                    }\n                }\n            } else if (rhinoAttributes.materialSource === rhino.ObjectMaterialSource.MaterialFromParent) {\n                if (rhinoInstanceReferences.length !== 0) {\n                    return GetRhinoMaterial (rhino, rhinoInstanceReferences[0], []);\n                }\n            }\n            return null;\n        }\n\n        function ConvertRhinoMaterial (rhinoMaterial, callbacks)\n        {\n            function SetColor (color, rhinoColor)\n            {\n                color.Set (rhinoColor.r, rhinoColor.g, rhinoColor.b);\n            }\n\n            function IsBlack (rhinoColor)\n            {\n                return rhinoColor.r === 0 && rhinoColor.g === 0 && rhinoColor.b === 0;\n            }\n\n            function IsWhite (rhinoColor)\n            {\n                return rhinoColor.r === 255 && rhinoColor.g === 255 && rhinoColor.b === 255;\n            }\n\n            let material = null;\n            let physicallyBased = rhinoMaterial.physicallyBased ();\n            if (physicallyBased.supported) {\n                material = new PhysicalMaterial ();\n                material.metalness = physicallyBased.metallic ? 1.0 : 0.0;\n                material.roughness = physicallyBased.roughness;\n            } else {\n                material = new PhongMaterial ();\n                SetColor (material.ambient, rhinoMaterial.ambientColor);\n                SetColor (material.specular, rhinoMaterial.specularColor);\n            }\n\n            material.name = rhinoMaterial.name;\n\n            SetColor (material.color, rhinoMaterial.diffuseColor);\n            material.opacity = 1.0 - rhinoMaterial.transparency;\n            UpdateMaterialTransparency (material);\n\n            if (IsBlack (material.color) && !IsWhite (rhinoMaterial.reflectionColor)) {\n                SetColor (material.color, rhinoMaterial.reflectionColor);\n            }\n            if (IsBlack (material.color) && !IsWhite (rhinoMaterial.transparentColor)) {\n                SetColor (material.color, rhinoMaterial.transparentColor);\n            }\n\n            let rhinoTexture = rhinoMaterial.getBitmapTexture ();\n            if (rhinoTexture) {\n                let texture = new TextureMap ();\n                let textureName = GetFileName (rhinoTexture.fileName);\n                let textureBuffer = callbacks.getTextureBuffer (textureName);\n                texture.name = textureName;\n                if (textureBuffer !== null) {\n                    texture.url = textureBuffer.url;\n                    texture.buffer = textureBuffer.buffer;\n                }\n                material.diffuseMap = texture;\n            }\n\n            return material;\n        }\n\n        function FindMatchingMaterial (model, rhinoMaterial, callbacks)\n        {\n            let material = ConvertRhinoMaterial (rhinoMaterial, callbacks);\n            for (let i = 0; i < model.MaterialCount (); i++) {\n                let current = model.GetMaterial (i);\n                if (current.IsEqual (material)) {\n                    return i;\n                }\n            }\n            return model.AddMaterial (material);\n        }\n\n        let rhinoMaterial = GetRhinoMaterial (this.rhino, rhinoObject, rhinoInstanceReferences);\n        if (rhinoMaterial === null) {\n            return null;\n        }\n        return FindMatchingMaterial (this.model, rhinoMaterial, this.callbacks);\n    }\n}\n", "export class BinaryReader\n{\n    constructor (arrayBuffer, isLittleEndian)\n    {\n        this.arrayBuffer = arrayBuffer;\n        this.dataView = new DataView (arrayBuffer);\n        this.isLittleEndian = isLittleEndian;\n        this.position = 0;\n    }\n\n    GetPosition ()\n    {\n        return this.position;\n    }\n\n    SetPosition (position)\n    {\n        this.position = position;\n    }\n\n    GetByteLength ()\n    {\n        return this.arrayBuffer.byteLength;\n    }\n\n    Skip (bytes)\n    {\n        this.position = this.position + bytes;\n    }\n\n    End ()\n    {\n        return this.position >= this.arrayBuffer.byteLength;\n    }\n\n    ReadArrayBuffer (byteLength)\n    {\n        let originalBufferView = new Uint8Array (this.arrayBuffer);\n        let arrayBuffer = new ArrayBuffer (byteLength);\n        let bufferView = new Uint8Array (arrayBuffer);\n        let subArray = originalBufferView.subarray (this.position, this.position + byteLength);\n        bufferView.set (subArray, 0);\n        this.position += byteLength;\n        return arrayBuffer;\n    }\n\n    ReadBoolean8 ()\n    {\n        let result = this.dataView.getInt8 (this.position);\n        this.position = this.position + 1;\n        return result ? true : false;\n    }\n\n    ReadCharacter8 ()\n    {\n        let result = this.dataView.getInt8 (this.position);\n        this.position = this.position + 1;\n        return result;\n    }\n\n    ReadUnsignedCharacter8 ()\n    {\n        let result = this.dataView.getUint8 (this.position);\n        this.position = this.position + 1;\n        return result;\n    }\n\n    ReadInteger16 ()\n    {\n        let result = this.dataView.getInt16 (this.position, this.isLittleEndian);\n        this.position = this.position + 2;\n        return result;\n    }\n\n    ReadUnsignedInteger16 ()\n    {\n        let result = this.dataView.getUint16 (this.position, this.isLittleEndian);\n        this.position = this.position + 2;\n        return result;\n    }\n\n    ReadInteger32 ()\n    {\n        let result = this.dataView.getInt32 (this.position, this.isLittleEndian);\n        this.position = this.position + 4;\n        return result;\n    }\n\n    ReadUnsignedInteger32 ()\n    {\n        let result = this.dataView.getUint32 (this.position, this.isLittleEndian);\n        this.position = this.position + 4;\n        return result;\n    }\n\n    ReadFloat32 ()\n    {\n        let result = this.dataView.getFloat32 (this.position, this.isLittleEndian);\n        this.position = this.position + 4;\n        return result;\n    }\n\n    ReadDouble64 ()\n    {\n        let result = this.dataView.getFloat64 (this.position, this.isLittleEndian);\n        this.position = this.position + 8;\n        return result;\n    }\n}\n", "import { Coord2D } from '../geometry/coord2d.js';\nimport { ArrayToCoord3D, Coord3D } from '../geometry/coord3d.js';\nimport { DegRad, Direction, IsNegative } from '../geometry/geometry.js';\nimport { Matrix } from '../geometry/matrix.js';\nimport { ArrayToQuaternion } from '../geometry/quaternion.js';\nimport { Transformation } from '../geometry/transformation.js';\nimport { BinaryReader } from '../io/binaryreader.js';\nimport { Color, ColorComponentFromFloat } from '../model/color.js';\nimport { PhongMaterial, TextureMap } from '../model/material.js';\nimport { Mesh } from '../model/mesh.js';\nimport { FlipMeshTrianglesOrientation, TransformMesh } from '../model/meshutils.js';\nimport { Node, NodeType } from '../model/node.js';\nimport { Triangle } from '../model/triangle.js';\nimport { ImporterBase } from './importerbase.js';\nimport { UpdateMaterialTransparency } from './importerutils.js';\n\nconst CHUNK3DS =\n{\n    MAIN3DS : 0x4D4D,\n    EDIT3DS : 0x3D3D,\n    EDIT_MATERIAL : 0xAFFF,\n    MAT_NAME : 0xA000,\n    MAT_AMBIENT : 0xA010,\n    MAT_DIFFUSE : 0xA020,\n    MAT_SPECULAR : 0xA030,\n    MAT_SHININESS : 0xA040,\n    MAT_SHININESS_STRENGTH : 0xA041,\n    MAT_TRANSPARENCY : 0xA050,\n    MAT_COLOR_F : 0x0010,\n    MAT_COLOR : 0x0011,\n    MAT_LIN_COLOR : 0x0012,\n    MAT_LIN_COLOR_F : 0x0013,\n    MAT_TEXMAP : 0xA200,\n    MAT_TEXMAP_NAME : 0xA300,\n    MAT_TEXMAP_UOFFSET : 0xA358,\n    MAT_TEXMAP_VOFFSET : 0xA35A,\n    MAT_TEXMAP_USCALE : 0xA354,\n    MAT_TEXMAP_VSCALE : 0xA356,\n    MAT_TEXMAP_ROTATION : 0xA35C,\n    PERCENTAGE : 0x0030,\n    PERCENTAGE_F : 0x0031,\n    EDIT_OBJECT : 0x4000,\n    OBJ_TRIMESH : 0x4100,\n    OBJ_LIGHT : 0x4600,\n    OBJ_CAMERA : 0x4700,\n    TRI_VERTEX : 0x4110,\n    TRI_TEXVERTEX : 0x4140,\n    TRI_FACE : 0x4120,\n    TRI_TRANSFORMATION : 0x4160,\n    TRI_MATERIAL : 0x4130,\n    TRI_SMOOTH : 0x4150,\n    KF3DS : 0xB000,\n    OBJECT_NODE : 0xB002,\n    OBJECT_HIERARCHY : 0xB010,\n    OBJECT_INSTANCE_NAME : 0xB011,\n    OBJECT_PIVOT : 0xB013,\n    OBJECT_POSITION : 0xB020,\n    OBJECT_ROTATION : 0xB021,\n    OBJECT_SCALE : 0xB022,\n    OBJECT_ID : 0xB030\n};\n\nclass Importer3dsNode\n{\n    constructor ()\n    {\n        this.id = -1;\n        this.name = '';\n        this.flags = -1;\n        this.parentId = -1;\n        this.instanceName = '';\n        this.pivot = [0.0, 0.0, 0.0];\n        this.positions = [];\n        this.rotations = [];\n        this.scales = [];\n    }\n}\n\nclass Importer3dsNodeList\n{\n    constructor ()\n    {\n        this.nodes = [];\n        this.nodeIdToNode = new Map ();\n    }\n\n    IsEmpty ()\n    {\n        return this.nodes.length === 0;\n    }\n\n    AddNode (node)\n    {\n        this.nodes.push (node);\n        this.nodeIdToNode.set (node.nodeId, node);\n    }\n\n    GetNodes ()\n    {\n        return this.nodes;\n    }\n}\n\nexport class Importer3ds extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === '3ds';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Z;\n    }\n\n    ClearContent ()\n    {\n        this.materialNameToIndex = null;\n        this.meshNameToIndex = null;\n        this.nodeList = null;\n    }\n\n    ResetContent ()\n    {\n        this.materialNameToIndex = new Map ();\n        this.meshNameToIndex = new Map ();\n        this.nodeList = new Importer3dsNodeList ();\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        this.ProcessBinary (fileContent);\n        onFinish ();\n    }\n\n    ProcessBinary (fileContent)\n    {\n        let reader = new BinaryReader (fileContent, true);\n        let endByte = reader.GetByteLength ();\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.MAIN3DS) {\n                this.ReadMainChunk (reader, chunkLength);\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n    }\n\n    ReadMainChunk (reader, length)\n    {\n        let endByte = this.GetChunkEnd (reader, length);\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.EDIT3DS) {\n                this.ReadEditorChunk (reader, chunkLength);\n            } else if (chunkId === CHUNK3DS.KF3DS) {\n                this.ReadKeyFrameChunk (reader, chunkLength);\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n        this.BuildNodeHierarchy ();\n    }\n\n    ReadEditorChunk (reader, length)\n    {\n        let endByte = this.GetChunkEnd (reader, length);\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.EDIT_MATERIAL) {\n                this.ReadMaterialChunk (reader, chunkLength);\n            } else if (chunkId === CHUNK3DS.EDIT_OBJECT) {\n                this.ReadObjectChunk (reader, chunkLength);\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n    }\n\n    ReadMaterialChunk (reader, length)\n    {\n        let material = new PhongMaterial ();\n        let endByte = this.GetChunkEnd (reader, length);\n        let shininess = null;\n        let shininessStrength = null;\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.MAT_NAME) {\n                material.name = this.ReadName (reader);\n            } else if (chunkId === CHUNK3DS.MAT_AMBIENT) {\n                material.ambient = this.ReadColorChunk (reader, chunkLength);\n            } else if (chunkId === CHUNK3DS.MAT_DIFFUSE) {\n                material.color = this.ReadColorChunk (reader, chunkLength);\n            } else if (chunkId === CHUNK3DS.MAT_SPECULAR) {\n                material.specular = this.ReadColorChunk (reader, chunkLength);\n            } else if (chunkId === CHUNK3DS.MAT_SHININESS) {\n                shininess = this.ReadPercentageChunk (reader, chunkLength);\n            } else if (chunkId === CHUNK3DS.MAT_SHININESS_STRENGTH) {\n                shininessStrength = this.ReadPercentageChunk (reader, chunkLength);\n            } else if (chunkId === CHUNK3DS.MAT_TRANSPARENCY) {\n                material.opacity = 1.0 - this.ReadPercentageChunk (reader, chunkLength);\n                UpdateMaterialTransparency (material);\n            } else if (chunkId === CHUNK3DS.MAT_TEXMAP) {\n                material.diffuseMap = this.ReadTextureMapChunk (reader, chunkLength);\n                UpdateMaterialTransparency (material);\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n\n        if (shininess !== null && shininessStrength !== null) {\n            material.shininess = shininess * shininessStrength / 10.0;\n        }\n        let materialIndex = this.model.AddMaterial (material);\n        this.materialNameToIndex.set (material.name, materialIndex);\n    }\n\n    ReadTextureMapChunk (reader, length)\n    {\n        let texture = new TextureMap ();\n        let endByte = this.GetChunkEnd (reader, length);\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.MAT_TEXMAP_NAME) {\n                let textureName = this.ReadName (reader);\n                let textureBuffer = this.callbacks.getTextureBuffer (textureName);\n                texture.name = textureName;\n                if (textureBuffer !== null) {\n                    texture.url = textureBuffer.url;\n                    texture.buffer = textureBuffer.buffer;\n                }\n            } else if (chunkId === CHUNK3DS.MAT_TEXMAP_UOFFSET) {\n                texture.offset.x = reader.ReadFloat32 ();\n            } else if (chunkId === CHUNK3DS.MAT_TEXMAP_VOFFSET) {\n                texture.offset.y = reader.ReadFloat32 ();\n            } else if (chunkId === CHUNK3DS.MAT_TEXMAP_USCALE) {\n                texture.scale.x = reader.ReadFloat32 ();\n            } else if (chunkId === CHUNK3DS.MAT_TEXMAP_VSCALE) {\n                texture.scale.y = reader.ReadFloat32 ();\n            } else if (chunkId === CHUNK3DS.MAT_TEXMAP_ROTATION) {\n                texture.rotation = reader.ReadFloat32 () * DegRad;\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n        return texture;\n    }\n\n    ReadColorChunk (reader, length)\n    {\n        let color = new Color (0, 0, 0);\n        let endByte = this.GetChunkEnd (reader, length);\n        let hasLinColor = false;\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.MAT_COLOR) {\n                if (!hasLinColor) {\n                    color.r = reader.ReadUnsignedCharacter8 ();\n                    color.g = reader.ReadUnsignedCharacter8 ();\n                    color.b = reader.ReadUnsignedCharacter8 ();\n                }\n            } else if (chunkId === CHUNK3DS.MAT_LIN_COLOR) {\n                color.r = reader.ReadUnsignedCharacter8 ();\n                color.g = reader.ReadUnsignedCharacter8 ();\n                color.b = reader.ReadUnsignedCharacter8 ();\n                hasLinColor = true;\n            } else if (chunkId === CHUNK3DS.MAT_COLOR_F) {\n                if (!hasLinColor) {\n                    color.r = ColorComponentFromFloat (reader.ReadFloat32 ());\n                    color.g = ColorComponentFromFloat (reader.ReadFloat32 ());\n                    color.b = ColorComponentFromFloat (reader.ReadFloat32 ());\n                }\n            } else if (chunkId === CHUNK3DS.MAT_LIN_COLOR_F) {\n                color.r = ColorComponentFromFloat (reader.ReadFloat32 ());\n                color.g = ColorComponentFromFloat (reader.ReadFloat32 ());\n                color.b = ColorComponentFromFloat (reader.ReadFloat32 ());\n                hasLinColor = true;\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n        return color;\n    }\n\n    ReadPercentageChunk (reader, length)\n    {\n        let percentage = 0.0;\n        let endByte = this.GetChunkEnd (reader, length);\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.PERCENTAGE) {\n                percentage = reader.ReadUnsignedInteger16 () / 100.0;\n            } else if (chunkId === CHUNK3DS.PERCENTAGE_F) {\n                percentage = reader.ReadFloat32 ();\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n        return percentage;\n    }\n\n    ReadObjectChunk (reader, length)\n    {\n        let endByte = this.GetChunkEnd (reader, length);\n        let objectName = this.ReadName (reader);\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.OBJ_TRIMESH) {\n                this.ReadMeshChunk (reader, chunkLength, objectName);\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n    }\n\n    ReadMeshChunk (reader, length, objectName)\n    {\n        function ApplyMeshTransformation (mesh, meshMatrix)\n        {\n            if (!meshMatrix.IsValid ()) {\n                return;\n            }\n\n            let determinant = meshMatrix.Determinant ();\n            let mirrorByX = IsNegative (determinant);\n            if (mirrorByX) {\n                let scaleMatrix = new Matrix ().CreateScale (-1.0, 1.0, 1.0);\n                meshMatrix = scaleMatrix.MultiplyMatrix (meshMatrix);\n            }\n\n            let invMeshMatrix = meshMatrix.Invert ();\n            if (invMeshMatrix === null) {\n                return;\n            }\n\n            let transformation = new Transformation (invMeshMatrix);\n            TransformMesh (mesh, transformation);\n            if (mirrorByX) {\n                FlipMeshTrianglesOrientation (mesh);\n            }\n        }\n\n        let mesh = new Mesh ();\n        mesh.SetName (objectName);\n\n        let endByte = this.GetChunkEnd (reader, length);\n        let matrixElements = null;\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.TRI_VERTEX) {\n                this.ReadVerticesChunk (mesh, reader);\n            } else if (chunkId === CHUNK3DS.TRI_TEXVERTEX) {\n                this.ReadTextureVerticesChunk (mesh, reader);\n            } else if (chunkId === CHUNK3DS.TRI_FACE) {\n                this.ReadFacesChunk (mesh, reader, chunkLength);\n            } else if (chunkId === CHUNK3DS.TRI_TRANSFORMATION) {\n                matrixElements = this.ReadTransformationChunk (reader);\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n\n        if (mesh.VertexCount () === mesh.TextureUVCount ()) {\n            for (let i = 0; i < mesh.TriangleCount (); i++) {\n                let triangle = mesh.GetTriangle (i);\n                triangle.SetTextureUVs (\n                    triangle.v0,\n                    triangle.v1,\n                    triangle.v2\n                );\n            }\n        }\n\n        let meshMatrix = new Matrix (matrixElements);\n        ApplyMeshTransformation (mesh, meshMatrix);\n\n        let meshIndex = this.model.AddMesh (mesh);\n        this.meshNameToIndex.set (mesh.GetName (), meshIndex);\n    }\n\n    ReadVerticesChunk (mesh, reader)\n    {\n        let vertexCount = reader.ReadUnsignedInteger16 ();\n        for (let i = 0; i < vertexCount; i++) {\n            let x = reader.ReadFloat32 ();\n            let y = reader.ReadFloat32 ();\n            let z = reader.ReadFloat32 ();\n            mesh.AddVertex (new Coord3D (x, y, z));\n        }\n    }\n\n    ReadTextureVerticesChunk (mesh, reader)\n    {\n        let texVertexCount = reader.ReadUnsignedInteger16 ();\n        for (let i = 0; i < texVertexCount; i++) {\n            let x = reader.ReadFloat32 ();\n            let y = reader.ReadFloat32 ();\n            mesh.AddTextureUV (new Coord2D (x, y));\n        }\n    }\n\n    ReadFacesChunk (mesh, reader, length)\n    {\n        let endByte = this.GetChunkEnd (reader, length);\n        let faceCount = reader.ReadUnsignedInteger16 ();\n        for (let i = 0; i < faceCount; i++) {\n            let v0 = reader.ReadUnsignedInteger16 ();\n            let v1 = reader.ReadUnsignedInteger16 ();\n            let v2 = reader.ReadUnsignedInteger16 ();\n            reader.ReadUnsignedInteger16 (); // flags\n            mesh.AddTriangle (new Triangle (v0, v1, v2));\n        }\n\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.TRI_MATERIAL) {\n                this.ReadFaceMaterialsChunk (mesh, reader);\n            } else if (chunkId === CHUNK3DS.TRI_SMOOTH) {\n                this.ReadFaceSmoothingGroupsChunk (mesh, faceCount, reader);\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n    }\n\n    ReadFaceMaterialsChunk (mesh, reader)\n    {\n        let materialName = this.ReadName (reader);\n        let materialIndex = this.materialNameToIndex.get (materialName);\n        let faceCount = reader.ReadUnsignedInteger16 ();\n        for (let i = 0; i < faceCount; i++) {\n            let faceIndex = reader.ReadUnsignedInteger16 ();\n            let triangle = mesh.GetTriangle (faceIndex);\n            if (materialIndex !== undefined) {\n                triangle.mat = materialIndex;\n            }\n        }\n    }\n\n    ReadFaceSmoothingGroupsChunk (mesh, faceCount, reader)\n    {\n        for (let i = 0; i < faceCount; i++) {\n            let smoothingGroup = reader.ReadUnsignedInteger32 ();\n            let triangle = mesh.GetTriangle (i);\n            triangle.curve = smoothingGroup;\n        }\n    }\n\n    ReadTransformationChunk (reader)\n    {\n        let matrix = [];\n        for (let i = 0; i < 4; i++) {\n            for (let j = 0; j < 3; j++) {\n                matrix.push (reader.ReadFloat32 ());\n            }\n            if (i < 3) {\n                matrix.push (0);\n            } else {\n                matrix.push (1);\n            }\n        }\n        return matrix;\n    }\n\n    ReadKeyFrameChunk (reader, length)\n    {\n        let endByte = this.GetChunkEnd (reader, length);\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.OBJECT_NODE) {\n                this.ReadObjectNodeChunk (reader, chunkLength);\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n    }\n\n    BuildNodeHierarchy ()\n    {\n        function GetNodeTransformation (node3ds, isMeshNode)\n        {\n            function GetNodePosition (node3ds)\n            {\n                if (node3ds.positions.length === 0) {\n                    return [0.0, 0.0, 0.0];\n                }\n                return node3ds.positions[0];\n            }\n\n            function GetNodeRotation (node3ds)\n            {\n                function GetQuaternionFromAxisAndAngle (axisAngle)\n                {\n                    let result = [0.0, 0.0, 0.0, 1.0];\n                    let length = Math.sqrt (axisAngle[0] * axisAngle[0] + axisAngle[1] * axisAngle[1] + axisAngle[2] * axisAngle[2]);\n                    if (length > 0.0) {\n                        let omega = axisAngle[3] * -0.5;\n                        let si = Math.sin (omega) / length;\n                        result = [si * axisAngle[0], si * axisAngle[1], si * axisAngle[2], Math.cos (omega)];\n                    }\n                    return result;\n                }\n\n                if (node3ds.rotations.length === 0) {\n                    return [0.0, 0.0, 0.0, 1.0];\n                }\n\n                let rotation = node3ds.rotations[0];\n                return GetQuaternionFromAxisAndAngle (rotation);\n            }\n\n            function GetNodeScale (node3ds)\n            {\n                if (node3ds.scales.length === 0) {\n                    return [1.0, 1.0, 1.0];\n                }\n                return node3ds.scales[0];\n            }\n\n            let matrix = new Matrix ();\n            matrix.ComposeTRS (\n                ArrayToCoord3D (GetNodePosition (node3ds)),\n                ArrayToQuaternion (GetNodeRotation (node3ds)),\n                ArrayToCoord3D (GetNodeScale (node3ds))\n            );\n\n            if (isMeshNode) {\n                let pivotPoint = node3ds.pivot;\n                let pivotMatrix = new Matrix ().CreateTranslation (-pivotPoint[0], -pivotPoint[1], -pivotPoint[2]);\n                matrix = pivotMatrix.MultiplyMatrix (matrix);\n            }\n\n            return new Transformation (matrix);\n        }\n\n        let rootNode = this.model.GetRootNode ();\n        if (this.nodeList.IsEmpty ()) {\n            for (let meshIndex = 0; meshIndex < this.model.MeshCount (); meshIndex++) {\n                rootNode.AddMeshIndex (meshIndex);\n            }\n        } else {\n            let nodeIdToModelNode = new Map ();\n            for (let node3ds of this.nodeList.GetNodes ()) {\n                let node = new Node ();\n                if (node3ds.name.length > 0 && node3ds.name !== '$$$DUMMY') {\n                    node.SetName (node3ds.name);\n                    if (node3ds.instanceName.length > 0) {\n                        node.SetName (node.GetName () + ' ' + node3ds.instanceName);\n                    }\n                }\n                if (node3ds.parentId === 65535 || !nodeIdToModelNode.has (node3ds.parentId)) {\n                    rootNode.AddChildNode (node);\n                } else {\n                    let parentNode = nodeIdToModelNode.get (node3ds.parentId);\n                    parentNode.AddChildNode (node);\n                }\n                nodeIdToModelNode.set (node3ds.id, node);\n                let isMeshNode = this.meshNameToIndex.has (node3ds.name);\n                node.SetTransformation (GetNodeTransformation (node3ds, isMeshNode));\n                if (isMeshNode) {\n                    node.SetType (NodeType.MeshNode);\n                    node.AddMeshIndex (this.meshNameToIndex.get (node3ds.name));\n                }\n            }\n        }\n    }\n\n    ReadObjectNodeChunk (reader, length)\n    {\n        function ReadTrackVector (obj, reader, type)\n        {\n            let result = [];\n            reader.Skip (10);\n\n            let keyNum = reader.ReadInteger32 ();\n            for (let i = 0; i < keyNum; i++) {\n                reader.ReadInteger32 ();\n                let flags = reader.ReadUnsignedInteger16 ();\n                if (flags !== 0) {\n                    reader.ReadFloat32 ();\n                }\n\n                let current = null;\n                if (type === CHUNK3DS.OBJECT_ROTATION) {\n                    let tmp = reader.ReadFloat32 ();\n                    current = obj.ReadVector (reader);\n                    current[3] = tmp;\n                } else {\n                    current = obj.ReadVector (reader);\n                }\n                result.push (current);\n            }\n\n            return result;\n        }\n\n        let node3ds = new Importer3dsNode ();\n        let endByte = this.GetChunkEnd (reader, length);\n        this.ReadChunks (reader, endByte, (chunkId, chunkLength) => {\n            if (chunkId === CHUNK3DS.OBJECT_HIERARCHY) {\n                node3ds.name = this.ReadName (reader);\n                node3ds.flags = reader.ReadUnsignedInteger32 ();\n                node3ds.parentId = reader.ReadUnsignedInteger16 ();\n            } else if (chunkId === CHUNK3DS.OBJECT_INSTANCE_NAME) {\n                node3ds.instanceName = this.ReadName (reader);\n            } else if (chunkId === CHUNK3DS.OBJECT_PIVOT) {\n                node3ds.pivot = this.ReadVector (reader);\n            } else if (chunkId === CHUNK3DS.OBJECT_POSITION) {\n                node3ds.positions = ReadTrackVector (this, reader, CHUNK3DS.OBJECT_POSITION);\n            } else if (chunkId === CHUNK3DS.OBJECT_ROTATION) {\n                node3ds.rotations = ReadTrackVector (this, reader, CHUNK3DS.OBJECT_ROTATION);\n            } else if (chunkId === CHUNK3DS.OBJECT_SCALE) {\n                node3ds.scales = ReadTrackVector (this, reader, CHUNK3DS.OBJECT_SCALE);\n            } else if (chunkId === CHUNK3DS.OBJECT_ID) {\n                node3ds.id = reader.ReadUnsignedInteger16 ();\n            } else {\n                this.SkipChunk (reader, chunkLength);\n            }\n        });\n\n        this.nodeList.AddNode (node3ds);\n    }\n\n    ReadName (reader)\n    {\n        let name = '';\n        let char = 0;\n        let count = 0;\n        while (count < 64) {\n            char = reader.ReadCharacter8 ();\n            if (char === 0) {\n                break;\n            }\n            name = name + String.fromCharCode (char);\n            count = count + 1;\n        }\n        return name;\n    }\n\n    ReadVector (reader)\n    {\n        let result = [\n            reader.ReadFloat32 (),\n            reader.ReadFloat32 (),\n            reader.ReadFloat32 ()\n        ];\n        return result;\n    }\n\n    ReadChunks (reader, endByte, onChunk)\n    {\n        while (reader.GetPosition () <= endByte - 6) {\n        let chunkId = reader.ReadUnsignedInteger16 ();\n            let chunkLength = reader.ReadUnsignedInteger32 ();\n            onChunk (chunkId, chunkLength);\n        }\n    }\n\n    GetChunkEnd (reader, length)\n    {\n        return reader.GetPosition () + length - 6;\n    }\n\n    SkipChunk (reader, length)\n    {\n        reader.Skip (length - 6);\n    }\n}\n", "import { Coord2D } from '../geometry/coord2d.js';\nimport { ArrayToCoord3D, Coord3D } from '../geometry/coord3d.js';\nimport { Coord4D } from '../geometry/coord4d.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { Matrix } from '../geometry/matrix.js';\nimport { ArrayToQuaternion } from '../geometry/quaternion.js';\nimport { Transformation } from '../geometry/transformation.js';\nimport { BinaryReader } from '../io/binaryreader.js';\nimport { ArrayBufferToUtf8String, Base64DataURIToArrayBuffer, CreateObjectUrlWithMimeType, GetFileExtensionFromMimeType } from '../io/bufferutils.js';\nimport { LoadExternalLibrary } from '../io/externallibs.js';\nimport { Color, ColorComponentFromFloat, ColorFromFloatComponents, LinearToSRGB } from '../model/color.js';\nimport { PhongMaterial, PhysicalMaterial, TextureMap } from '../model/material.js';\nimport { Mesh } from '../model/mesh.js';\nimport { Node, NodeType } from '../model/node.js';\nimport { Property, PropertyGroup, PropertyType } from '../model/property.js';\nimport { Triangle } from '../model/triangle.js';\nimport { ImporterBase } from './importerbase.js';\n\nconst GltfComponentType =\n{\n    BYTE : 5120,\n    UNSIGNED_BYTE : 5121,\n    SHORT : 5122,\n    UNSIGNED_SHORT : 5123,\n    UNSIGNED_INT : 5125,\n    FLOAT  : 5126\n};\n\nconst GltfDataType =\n{\n    SCALAR : 0,\n    VEC2 : 1,\n    VEC3 : 2,\n    VEC4 : 3,\n    MAT2 : 4,\n    MAT3  : 5,\n    MAT4  : 6\n};\n\nconst GltfRenderMode =\n{\n    POINTS : 0,\n    LINES : 1,\n    LINE_LOOP : 2,\n    LINE_STRIP : 3,\n    TRIANGLES : 4,\n    TRIANGLE_STRIP  : 5,\n    TRIANGLE_FAN : 6\n};\n\nconst GltfConstants =\n{\n    GLTF_STRING : 0x46546C67,\n    JSON_CHUNK_TYPE : 0x4E4F534A,\n    BINARY_CHUNK_TYPE : 0x004E4942\n};\n\nfunction GetGltfColor (color)\n{\n    return ColorFromFloatComponents (\n        LinearToSRGB (color[0]),\n        LinearToSRGB (color[1]),\n        LinearToSRGB (color[2])\n    );\n}\n\nfunction GetGltfVertexColor (color, componentType)\n{\n    function GetColorComponent (component, componentType)\n    {\n        let normalized = component;\n        if (componentType !== GltfComponentType.FLOAT) {\n            normalized /= 255.0;\n        }\n        return ColorComponentFromFloat (LinearToSRGB (normalized));\n    }\n\n    return new Color (\n        GetColorComponent (color[0], componentType),\n        GetColorComponent (color[1], componentType),\n        GetColorComponent (color[2], componentType)\n    );\n}\n\nclass GltfBufferReader\n{\n    constructor (buffer)\n    {\n        this.reader = new BinaryReader (buffer, true);\n        this.componentType = null;\n        this.dataType = null;\n        this.byteStride = null;\n        this.dataCount = null;\n        this.sparseReader = null;\n    }\n\n    SetComponentType (componentType)\n    {\n        this.componentType = componentType;\n    }\n\n    SetDataType (dataType)\n    {\n        if (dataType === 'SCALAR') {\n            this.dataType = GltfDataType.SCALAR;\n        } else if (dataType === 'VEC2') {\n            this.dataType = GltfDataType.VEC2;\n        } else if (dataType === 'VEC3') {\n            this.dataType = GltfDataType.VEC3;\n        } else if (dataType === 'VEC4') {\n            this.dataType = GltfDataType.VEC4;\n        } else if (dataType === 'MAT2') {\n            this.dataType = GltfDataType.MAT2;\n        } else if (dataType === 'MAT3') {\n            this.dataType = GltfDataType.MAT3;\n        } else if (dataType === 'MAT4') {\n            this.dataType = GltfDataType.MAT4;\n        }\n    }\n\n    SetByteStride (byteStride)\n    {\n        this.byteStride = byteStride;\n    }\n\n    SetDataCount (dataCount)\n    {\n        this.dataCount = dataCount;\n    }\n\n    SetSparseReader (indexReader, valueReader)\n    {\n        this.sparseReader = {\n            indexReader : indexReader,\n            valueReader : valueReader\n        };\n    }\n\n    ReadArrayBuffer (byteLength)\n    {\n        return this.reader.ReadArrayBuffer (byteLength);\n    }\n\n    GetDataCount ()\n    {\n        return this.dataCount;\n    }\n\n    ReadData ()\n    {\n        if (this.dataType === null) {\n            return null;\n        }\n        if (this.dataType === GltfDataType.SCALAR) {\n            let data = this.ReadComponent ();\n            this.SkipBytesByStride (1);\n            return data;\n        } else if (this.dataType === GltfDataType.VEC2) {\n            let x = this.ReadComponent ();\n            let y = this.ReadComponent ();\n            this.SkipBytesByStride (2);\n            return new Coord2D (x, y);\n        } else if (this.dataType === GltfDataType.VEC3) {\n            let x = this.ReadComponent ();\n            let y = this.ReadComponent ();\n            let z = this.ReadComponent ();\n            this.SkipBytesByStride (3);\n            return new Coord3D (x, y, z);\n        } else if (this.dataType === GltfDataType.VEC4) {\n            let x = this.ReadComponent ();\n            let y = this.ReadComponent ();\n            let z = this.ReadComponent ();\n            let w = this.ReadComponent ();\n            this.SkipBytesByStride (4);\n            return new Coord4D (x, y, z, w);\n        }\n        return null;\n    }\n\n    EnumerateData (onData)\n    {\n        if (this.sparseReader === null) {\n            for (let i = 0; i < this.dataCount; i++) {\n                onData (this.ReadData ());\n            }\n        } else {\n            let sparseData = [];\n            for (let i = 0; i < this.sparseReader.indexReader.GetDataCount (); i++) {\n                let index = this.sparseReader.indexReader.ReadData ();\n                let value = this.sparseReader.valueReader.ReadData ();\n                sparseData.push ({\n                    index : index,\n                    value : value\n                });\n            }\n            let sparseIndex = 0;\n            for (let i = 0; i < this.dataCount; i++) {\n                let data = this.ReadData ();\n                if (sparseIndex < sparseData.length && sparseData[sparseIndex].index === i) {\n                    onData (sparseData[sparseIndex].value);\n                    sparseIndex += 1;\n                } else {\n                    onData (data);\n                }\n            }\n        }\n    }\n\n    SkipBytes (bytes)\n    {\n        this.reader.Skip (bytes);\n    }\n\n    ReadComponent ()\n    {\n        if (this.componentType === null) {\n            return null;\n        }\n        if (this.componentType === GltfComponentType.BYTE) {\n            return this.reader.ReadCharacter8 ();\n        } else if (this.componentType === GltfComponentType.UNSIGNED_BYTE) {\n            return this.reader.ReadUnsignedCharacter8 ();\n        } else if (this.componentType === GltfComponentType.SHORT) {\n            return this.reader.ReadInteger16 ();\n        } else if (this.componentType === GltfComponentType.UNSIGNED_SHORT) {\n            return this.reader.ReadUnsignedInteger16 ();\n        } else if (this.componentType === GltfComponentType.UNSIGNED_INT) {\n            return this.reader.ReadInteger32 ();\n        } else if (this.componentType === GltfComponentType.FLOAT) {\n            return this.reader.ReadFloat32 ();\n        }\n        return null;\n    }\n\n    SkipBytesByStride (componentCount)\n    {\n        if (this.byteStride === null) {\n            return;\n        }\n        let readBytes = componentCount * this.GetComponentSize ();\n        this.reader.Skip (this.byteStride - readBytes);\n    }\n\n    GetComponentSize ()\n    {\n        if (this.componentType === GltfComponentType.BYTE) {\n            return 1;\n        } else if (this.componentType === GltfComponentType.UNSIGNED_BYTE) {\n            return 1;\n        } else if (this.componentType === GltfComponentType.SHORT) {\n            return 2;\n        } else if (this.componentType === GltfComponentType.UNSIGNED_SHORT) {\n            return 2;\n        } else if (this.componentType === GltfComponentType.UNSIGNED_INT) {\n            return 4;\n        } else if (this.componentType === GltfComponentType.FLOAT) {\n            return 4;\n        }\n        return 0;\n    }\n}\n\nclass GltfExtensions\n{\n    constructor ()\n    {\n        this.supportedExtensions = [\n            'KHR_draco_mesh_compression',\n            'KHR_materials_pbrSpecularGlossiness',\n            'KHR_texture_transform',\n        ];\n        this.draco = null;\n    }\n\n    LoadLibraries (extensionsRequired, callbacks)\n    {\n        if (extensionsRequired === undefined) {\n            callbacks.onSuccess ();\n            return;\n        }\n        if (this.draco === null && extensionsRequired.indexOf ('KHR_draco_mesh_compression') !== -1) {\n\t\t\tLoadExternalLibrary ('loaders/draco_decoder.js').then (() => {\n                DracoDecoderModule ().then ((draco) => {\n                    this.draco = draco;\n                    callbacks.onSuccess ();\n                });\n            }).catch (() => {\n                callbacks.onError ('Failed to load draco decoder.');\n            });\n        } else {\n            callbacks.onSuccess ();\n        }\n    }\n\n    GetUnsupportedExtensions (extensionsRequired)\n    {\n        let unsupportedExtensions = [];\n        if (extensionsRequired === undefined) {\n            return unsupportedExtensions;\n        }\n        for (let i = 0; i < extensionsRequired.length; i++) {\n            let requiredExtension = extensionsRequired[i];\n            if (this.supportedExtensions.indexOf (requiredExtension) === -1) {\n                unsupportedExtensions.push (requiredExtension);\n            }\n        }\n        return unsupportedExtensions;\n    }\n\n    ProcessMaterial (gltfMaterial, material, imporTextureFn)\n    {\n        if (gltfMaterial.extensions === undefined) {\n            return null;\n        }\n\n        let khrSpecularGlossiness = gltfMaterial.extensions.KHR_materials_pbrSpecularGlossiness;\n        if (khrSpecularGlossiness === undefined) {\n            return null;\n        }\n\n        let phongMaterial = new PhongMaterial ();\n        let diffuseColor = khrSpecularGlossiness.diffuseFactor;\n        if (diffuseColor !== undefined) {\n            phongMaterial.color = GetGltfColor (diffuseColor);\n            phongMaterial.opacity = diffuseColor[3];\n        }\n        let diffuseTexture = khrSpecularGlossiness.diffuseTexture;\n        if (diffuseTexture !== undefined) {\n            phongMaterial.diffuseMap = imporTextureFn (diffuseTexture);\n        }\n        let specularColor = khrSpecularGlossiness.specularFactor;\n        if (specularColor !== undefined) {\n            phongMaterial.specular = GetGltfColor (specularColor);\n        }\n        let specularTexture = khrSpecularGlossiness.specularGlossinessTexture;\n        if (specularTexture !== undefined) {\n            phongMaterial.specularMap = imporTextureFn (specularTexture);\n        }\n        let glossiness = khrSpecularGlossiness.glossinessFactor;\n        if (glossiness !== undefined) {\n            phongMaterial.shininess = glossiness;\n        }\n\n        return phongMaterial;\n    }\n\n    ProcessTexture (gltfTexture, texture)\n    {\n        if (gltfTexture.extensions === undefined) {\n            return;\n        }\n        let khrTextureTransform = gltfTexture.extensions.KHR_texture_transform;\n        if (khrTextureTransform !== undefined) {\n            if (khrTextureTransform.offset !== undefined) {\n                texture.offset.x = khrTextureTransform.offset[0];\n                texture.offset.y = -khrTextureTransform.offset[1];\n            }\n            if (khrTextureTransform.scale !== undefined) {\n                texture.scale.x = khrTextureTransform.scale[0];\n                texture.scale.y = khrTextureTransform.scale[1];\n            }\n            if (khrTextureTransform.rotation !== undefined) {\n                texture.rotation = -khrTextureTransform.rotation;\n            }\n        }\n    }\n\n    ProcessPrimitive (importer, gltf, primitive, mesh)\n    {\n        function EnumerateComponents (draco, decoder, dracoMesh, attributeId, processor)\n        {\n            let attribute = decoder.GetAttributeByUniqueId (dracoMesh, attributeId);\n            let numComponents = attribute.num_components ();\n            let numPoints = dracoMesh.num_points ();\n            let numValues = numPoints * numComponents;\n            let dataSize = numValues * 4;\n            let attributePtr = draco._malloc (dataSize);\n            decoder.GetAttributeDataArrayForAllPoints (dracoMesh, attribute, draco.DT_FLOAT32, dataSize, attributePtr);\n            let attributeArray = new Float32Array (draco.HEAPF32.buffer, attributePtr, numValues).slice ();\n            if (numComponents === 2) {\n                for (let i = 0; i < attributeArray.length; i += 2) {\n                    processor (new Coord2D (\n                        attributeArray[i + 0],\n                        attributeArray[i + 1]\n                    ));\n                }\n            } else if (numComponents === 3) {\n                for (let i = 0; i < attributeArray.length; i += 3) {\n                    processor (new Coord3D (\n                        attributeArray[i + 0],\n                        attributeArray[i + 1],\n                        attributeArray[i + 2]\n                    ));\n                }\n            } else if (numComponents === 4) {\n                for (let i = 0; i < attributeArray.length; i += 4) {\n                    processor (new Coord4D (\n                        attributeArray[i + 0],\n                        attributeArray[i + 1],\n                        attributeArray[i + 2],\n                        attributeArray[i + 3]\n                    ));\n                }\n            }\n            draco._free (attributePtr);\n        }\n\n        if (this.draco === null) {\n            return false;\n        }\n\n        if (primitive.extensions === undefined || primitive.extensions.KHR_draco_mesh_compression === undefined) {\n            return false;\n        }\n\n        let decoder = new this.draco.Decoder ();\n        let decoderBuffer = new this.draco.DecoderBuffer ();\n\n        let extensionParams = primitive.extensions.KHR_draco_mesh_compression;\n        let compressedBufferView = gltf.bufferViews[extensionParams.bufferView];\n        let compressedReader = importer.GetReaderFromBufferView (compressedBufferView);\n        let compressedArrayBuffer = compressedReader.ReadArrayBuffer (compressedBufferView.byteLength);\n        decoderBuffer.Init (new Int8Array (compressedArrayBuffer), compressedArrayBuffer.byteLength);\n        let geometryType = decoder.GetEncodedGeometryType (decoderBuffer);\n        if (geometryType !== this.draco.TRIANGULAR_MESH) {\n            return true;\n        }\n\n        let dracoMesh = new this.draco.Mesh ();\n        let decodingStatus = decoder.DecodeBufferToMesh (decoderBuffer, dracoMesh);\n        if (!decodingStatus.ok ()) {\n            return true;\n        }\n\n        let hasVertices = (extensionParams.attributes.POSITION !== undefined);\n        let hasVertexColors = false;\n        let hasNormals = (extensionParams.attributes.NORMAL !== undefined);\n        let hasUVs = (extensionParams.attributes.TEXCOORD_0 !== undefined);\n\n        if (!hasVertices) {\n            return true;\n        }\n\n        let vertexOffset = mesh.VertexCount ();\n        let vertexColorOffset = mesh.VertexColorCount ();\n        let normalOffset = mesh.NormalCount ();\n        let uvOffset = mesh.TextureUVCount ();\n\n        EnumerateComponents (this.draco, decoder, dracoMesh, extensionParams.attributes.POSITION, (vertex) => {\n            mesh.AddVertex (vertex);\n        });\n\n        if (hasNormals) {\n            EnumerateComponents (this.draco, decoder, dracoMesh, extensionParams.attributes.NORMAL, (normal) => {\n                mesh.AddNormal (normal);\n            });\n        }\n\n        if (hasUVs) {\n            EnumerateComponents (this.draco, decoder, dracoMesh, extensionParams.attributes.TEXCOORD_0, (uv) => {\n                uv.y = -uv.y;\n                mesh.AddTextureUV (uv);\n            });\n        }\n\n        let faceCount = dracoMesh.num_faces ();\n        let indexCount = faceCount * 3;\n        let indexDataSize = indexCount * 4;\n        let indexDataPtr = this.draco._malloc (indexDataSize);\n        decoder.GetTrianglesUInt32Array (dracoMesh, indexDataSize, indexDataPtr);\n        let indexArray = new Uint32Array (this.draco.HEAPU32.buffer, indexDataPtr, indexCount).slice ();\n        for (let i = 0; i < indexArray.length; i += 3) {\n            let v0 = indexArray[i];\n            let v1 = indexArray[i + 1];\n            let v2 = indexArray[i + 2];\n            importer.AddTriangle (primitive, mesh, v0, v1, v2, hasVertexColors, hasNormals, hasUVs, vertexOffset, vertexColorOffset, normalOffset, uvOffset);\n        }\n        this.draco._free (indexDataPtr);\n\n        return true;\n    }\n}\n\nexport class ImporterGltf extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n        this.gltfExtensions = new GltfExtensions ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'gltf' || extension === 'glb';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n    ClearContent ()\n    {\n        this.bufferContents = null;\n        this.imageIndexToTextureParams = null;\n    }\n\n    ResetContent ()\n    {\n        this.bufferContents = [];\n        this.imageIndexToTextureParams = new Map ();\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        if (this.extension === 'gltf') {\n            this.ProcessGltf (fileContent, onFinish);\n        } else if (this.extension === 'glb') {\n            this.ProcessBinaryGltf (fileContent, onFinish);\n        }\n    }\n\n    ProcessGltf (fileContent, onFinish)\n    {\n        let textContent = ArrayBufferToUtf8String (fileContent);\n        let gltf = JSON.parse (textContent);\n        if (gltf.asset.version !== '2.0') {\n            this.SetError ('Invalid glTF version.');\n            onFinish ();\n            return;\n        }\n\n        for (let i = 0; i < gltf.buffers.length; i++) {\n            let buffer = null;\n            let gltfBuffer = gltf.buffers[i];\n            let base64Buffer = Base64DataURIToArrayBuffer (gltfBuffer.uri);\n            if (base64Buffer !== null) {\n                buffer = base64Buffer.buffer;\n            } else {\n                let fileBuffer = this.callbacks.getFileBuffer (gltfBuffer.uri);\n                if (fileBuffer !== null) {\n                    buffer = fileBuffer;\n                }\n            }\n            if (buffer === null) {\n                this.SetError ('One of the requested buffers is missing.');\n                onFinish ();\n                return;\n            }\n            this.bufferContents.push (buffer);\n        }\n\n        this.ProcessMainFile (gltf, onFinish);\n    }\n\n    ProcessBinaryGltf (fileContent, onFinish)\n    {\n        function ReadChunk (reader)\n        {\n            let length = reader.ReadUnsignedInteger32 ();\n            let type = reader.ReadUnsignedInteger32 ();\n            let buffer = reader.ReadArrayBuffer (length);\n            return {\n                type : type,\n                buffer : buffer\n            };\n        }\n\n        let reader = new BinaryReader (fileContent, true);\n        let magic = reader.ReadUnsignedInteger32 ();\n        if (magic !== GltfConstants.GLTF_STRING) {\n            this.SetError ('Invalid glTF file.');\n            onFinish ();\n            return;\n        }\n        let version = reader.ReadUnsignedInteger32 ();\n        if (version !== 2) {\n            this.SetError ('Invalid glTF version.');\n            onFinish ();\n            return;\n        }\n        let length = reader.ReadUnsignedInteger32 ();\n        if (length !== reader.GetByteLength ()) {\n            this.SetError ('Invalid glTF file.');\n            onFinish ();\n            return;\n        }\n\n        let gltfTextContent = null;\n        while (!reader.End ()) {\n            let chunk = ReadChunk (reader);\n            if (chunk.type === GltfConstants.JSON_CHUNK_TYPE) {\n                gltfTextContent = ArrayBufferToUtf8String (chunk.buffer);\n            } else if (chunk.type === GltfConstants.BINARY_CHUNK_TYPE) {\n                this.bufferContents.push (chunk.buffer);\n            }\n        }\n\n        if (gltfTextContent !== null) {\n            let gltf = JSON.parse (gltfTextContent);\n            this.ProcessMainFile (gltf, onFinish);\n        }\n    }\n\n    ProcessMainFile (gltf, onFinish)\n    {\n        let unsupportedExtensions = this.gltfExtensions.GetUnsupportedExtensions (gltf.extensionsRequired);\n        if (unsupportedExtensions.length > 0) {\n            this.SetError ('Unsupported extension: ' + unsupportedExtensions.join (', ') + '.');\n            onFinish ();\n            return;\n        }\n\n        this.gltfExtensions.LoadLibraries (gltf.extensionsRequired, {\n            onSuccess : () => {\n                this.ImportModel (gltf);\n                onFinish ();\n            },\n            onError : (message) => {\n                this.SetError (message);\n                onFinish ();\n            }\n        });\n    }\n\n    ImportModel (gltf)\n    {\n        let materials = gltf.materials;\n        if (materials !== undefined) {\n            for (let material of materials) {\n                this.ImportMaterial (gltf, material);\n            }\n        }\n\n        let meshes = gltf.meshes;\n        if (meshes !== undefined) {\n            for (let mesh of meshes) {\n                this.ImportMesh (gltf, mesh);\n            }\n        }\n\n        this.ImportNodes (gltf);\n        this.ImportModelProperties (gltf);\n    }\n\n    ImportModelProperties (gltf)\n    {\n        function ImportProperties (model, propertyGroupName, propertyObject)\n        {\n            let propertyGroup = new PropertyGroup (propertyGroupName);\n            for (let propertyName in propertyObject) {\n                if (Object.prototype.hasOwnProperty.call (propertyObject, propertyName)) {\n                    if (typeof propertyObject[propertyName] === 'string') {\n                        const property = new Property (PropertyType.Text, propertyName, propertyObject[propertyName]);\n                        propertyGroup.AddProperty (property);\n                    }\n                }\n            }\n            if (propertyGroup.PropertyCount () > 0) {\n                model.AddPropertyGroup (propertyGroup);\n            }\n            return propertyGroup;\n        }\n\n        ImportProperties (this.model, 'Asset properties', gltf.asset);\n        if (gltf.asset['extras']) {\n            ImportProperties (this.model, 'Extras', gltf.asset['extras']);\n        }\n    }\n\n    GetDefaultScene (gltf)\n    {\n        let defaultSceneIndex = gltf.scene || 0;\n        if (defaultSceneIndex >= gltf.scenes.length) {\n            return null;\n        }\n        return gltf.scenes[defaultSceneIndex];\n    }\n\n    ImportMaterial (gltf, gltfMaterial)\n    {\n        let material = new PhysicalMaterial ();\n        if (gltfMaterial.name !== undefined) {\n            material.name = gltfMaterial.name;\n        }\n\n        material.color = GetGltfColor ([1.0, 1.0, 1.0]);\n        if (gltfMaterial.pbrMetallicRoughness !== undefined) {\n            let baseColor = gltfMaterial.pbrMetallicRoughness.baseColorFactor;\n            if (baseColor !== undefined) {\n                material.color = GetGltfColor (baseColor);\n                material.opacity = baseColor[3];\n            }\n            let metallicFactor = gltfMaterial.pbrMetallicRoughness.metallicFactor;\n            if (metallicFactor !== undefined) {\n                material.metalness = metallicFactor;\n            }\n            let roughnessFactor = gltfMaterial.pbrMetallicRoughness.roughnessFactor;\n            if (roughnessFactor !== undefined) {\n                material.roughness = roughnessFactor;\n            }\n            let emissiveColor = gltfMaterial.emissiveFactor;\n            if (emissiveColor !== undefined) {\n                material.emissive = GetGltfColor (emissiveColor);\n            }\n\n            material.diffuseMap = this.ImportTexture (gltf, gltfMaterial.pbrMetallicRoughness.baseColorTexture);\n            material.metalnessMap = this.ImportTexture (gltf, gltfMaterial.pbrMetallicRoughness.metallicRoughnessTexture);\n            material.normalMap = this.ImportTexture (gltf, gltfMaterial.normalTexture);\n            material.emissiveMap = this.ImportTexture (gltf, gltfMaterial.emissiveTexture);\n            if (material.diffuseMap !== null) {\n                material.multiplyDiffuseMap = true;\n            }\n\n            let alphaMode = gltfMaterial.alphaMode;\n            if (alphaMode !== undefined) {\n                if (alphaMode === 'BLEND') {\n                    material.transparent = true;\n                } else if (alphaMode === 'MASK') {\n                    material.transparent = true;\n                    material.alphaTest = gltfMaterial.alphaCutoff || 0.5;\n                }\n            }\n        }\n\n        let newMaterial = this.gltfExtensions.ProcessMaterial (gltfMaterial, material, (textureRef) => {\n            return this.ImportTexture (gltf, textureRef);\n        });\n        if (newMaterial !== null) {\n            material = newMaterial;\n        }\n        this.model.AddMaterial (material);\n    }\n\n    ImportTexture (gltf, gltfTextureRef)\n    {\n        if (gltfTextureRef === undefined || gltfTextureRef === null) {\n            return null;\n        }\n\n        let texture = new TextureMap ();\n        let gltfTexture = gltf.textures[gltfTextureRef.index];\n        let gltfImageIndex = gltfTexture.source;\n        let gltfImage = gltf.images[gltfImageIndex];\n\n        let textureParams = null;\n        if (this.imageIndexToTextureParams.has (gltfImageIndex)) {\n            textureParams = this.imageIndexToTextureParams.get (gltfImageIndex);\n        } else {\n            textureParams = {\n                name : null,\n                url : null,\n                buffer : null\n            };\n            let textureIndexString = gltfImageIndex.toString ();\n            if (gltfImage.uri !== undefined) {\n                let base64Buffer = Base64DataURIToArrayBuffer (gltfImage.uri);\n                if (base64Buffer !== null) {\n                    textureParams.name = 'Embedded_' + textureIndexString + '.' + GetFileExtensionFromMimeType (base64Buffer.mimeType);\n                    textureParams.url = CreateObjectUrlWithMimeType (base64Buffer.buffer, base64Buffer.mimeType);\n                    textureParams.buffer = base64Buffer.buffer;\n                } else {\n                    let textureBuffer = this.callbacks.getTextureBuffer (gltfImage.uri);\n                    textureParams.name = gltfImage.uri;\n                    if (textureBuffer !== null) {\n                        textureParams.url = textureBuffer.url;\n                        textureParams.buffer = textureBuffer.buffer;\n                    }\n                }\n            } else if (gltfImage.bufferView !== undefined) {\n                let bufferView = gltf.bufferViews[gltfImage.bufferView];\n                let reader = this.GetReaderFromBufferView (bufferView);\n                if (reader !== null) {\n                    let buffer = reader.ReadArrayBuffer (bufferView.byteLength);\n                    textureParams.name = 'Binary_' + textureIndexString + '.' + GetFileExtensionFromMimeType (gltfImage.mimeType);\n                    textureParams.url = CreateObjectUrlWithMimeType (buffer, gltfImage.mimeType);\n                    textureParams.buffer = buffer;\n                }\n            }\n            this.imageIndexToTextureParams.set (gltfImageIndex, textureParams);\n        }\n\n        texture.name = textureParams.name;\n        texture.url = textureParams.url;\n        texture.buffer = textureParams.buffer;\n\n        this.gltfExtensions.ProcessTexture (gltfTextureRef, texture);\n        return texture;\n    }\n\n    ImportMesh (gltf, gltfMesh)\n    {\n        let mesh = new Mesh ();\n        this.model.AddMesh (mesh);\n        if (gltfMesh.name !== undefined) {\n            mesh.SetName (gltfMesh.name);\n        }\n\n        for (let i = 0; i < gltfMesh.primitives.length; i++) {\n            let primitive = gltfMesh.primitives[i];\n            this.ImportPrimitive (gltf, primitive, mesh);\n        }\n    }\n\n    ImportPrimitive (gltf, primitive, mesh)\n    {\n        if (this.gltfExtensions.ProcessPrimitive (this, gltf, primitive, mesh)) {\n            return;\n        }\n\n        if (primitive.attributes === undefined) {\n            return;\n        }\n\n        let hasVertices = (primitive.attributes.POSITION !== undefined);\n        let hasVertexColors = (primitive.attributes.COLOR_0 !== undefined);\n        let hasNormals = (primitive.attributes.NORMAL !== undefined);\n        let hasUVs = (primitive.attributes.TEXCOORD_0 !== undefined);\n        let hasIndices = (primitive.indices !== undefined);\n\n        let mode = GltfRenderMode.TRIANGLES;\n        if (primitive.mode !== undefined) {\n            mode = primitive.mode;\n        }\n        if (mode !== GltfRenderMode.TRIANGLES && mode !== GltfRenderMode.TRIANGLE_STRIP && mode !== GltfRenderMode.TRIANGLE_FAN) {\n            return;\n        }\n\n        let vertexOffset = mesh.VertexCount ();\n        let vertexColorOffset = mesh.VertexColorCount ();\n        let normalOffset = mesh.NormalCount ();\n        let uvOffset = mesh.TextureUVCount ();\n\n        if (hasVertices) {\n            let accessor = gltf.accessors[primitive.attributes.POSITION];\n            let reader = this.GetReaderFromAccessor (gltf, accessor);\n            if (reader === null) {\n                return;\n            }\n            reader.EnumerateData ((data) => {\n                mesh.AddVertex (data);\n            });\n        } else {\n            return;\n        }\n\n        if (hasVertexColors) {\n            let accessor = gltf.accessors[primitive.attributes.COLOR_0];\n            let reader = this.GetReaderFromAccessor (gltf, accessor);\n            if (reader === null) {\n                return;\n            }\n            reader.EnumerateData ((data) => {\n                let color = GetGltfVertexColor ([data.x, data.y, data.z], reader.componentType);\n                mesh.AddVertexColor (color);\n            });\n        }\n\n        if (hasNormals) {\n            let accessor = gltf.accessors[primitive.attributes.NORMAL];\n            let reader = this.GetReaderFromAccessor (gltf, accessor);\n            if (reader === null) {\n                return;\n            }\n            reader.EnumerateData ((data) => {\n                mesh.AddNormal (data);\n            });\n        }\n\n        if (hasUVs) {\n            let accessor = gltf.accessors[primitive.attributes.TEXCOORD_0];\n            let reader = this.GetReaderFromAccessor (gltf, accessor);\n            if (reader === null) {\n                return;\n            }\n            reader.EnumerateData ((data) => {\n                data.y = -data.y;\n                mesh.AddTextureUV (data);\n            });\n        }\n\n        let vertexIndices = [];\n        if (hasIndices) {\n            let accessor = gltf.accessors[primitive.indices];\n            let reader = this.GetReaderFromAccessor (gltf, accessor);\n            if (reader === null) {\n                return;\n            }\n            reader.EnumerateData ((data) => {\n                vertexIndices.push (data);\n            });\n        } else {\n            let primitiveVertexCount = mesh.VertexCount () - vertexOffset;\n            for (let i = 0; i < primitiveVertexCount; i++) {\n                vertexIndices.push (i);\n            }\n        }\n\n        if (mode === GltfRenderMode.TRIANGLES) {\n            for (let i = 0; i < vertexIndices.length; i += 3) {\n                let v0 = vertexIndices[i];\n                let v1 = vertexIndices[i + 1];\n                let v2 = vertexIndices[i + 2];\n                this.AddTriangle (primitive, mesh, v0, v1, v2, hasVertexColors, hasNormals, hasUVs, vertexOffset, vertexColorOffset, normalOffset, uvOffset);\n            }\n        } else if (mode === GltfRenderMode.TRIANGLE_STRIP) {\n            for (let i = 0; i < vertexIndices.length - 2; i++) {\n                let v0 = vertexIndices[i];\n                let v1 = vertexIndices[i + 1];\n                let v2 = vertexIndices[i + 2];\n                if (i % 2 === 1) {\n                    let tmp = v1;\n                    v1 = v2;\n                    v2 = tmp;\n                }\n                this.AddTriangle (primitive, mesh, v0, v1, v2, hasVertexColors, hasNormals, hasUVs, vertexOffset, vertexColorOffset, normalOffset, uvOffset);\n            }\n        } else if (mode === GltfRenderMode.TRIANGLE_FAN) {\n            for (let i = 1; i < vertexIndices.length - 1; i++) {\n                let v0 = vertexIndices[0];\n                let v1 = vertexIndices[i];\n                let v2 = vertexIndices[i + 1];\n                this.AddTriangle (primitive, mesh, v0, v1, v2, hasVertexColors, hasNormals, hasUVs, vertexOffset, vertexColorOffset, normalOffset, uvOffset);\n            }\n        }\n    }\n\n    AddTriangle (primitive, mesh, v0, v1, v2, hasVertexColors, hasNormals, hasUVs, vertexOffset, vertexColorOffset, normalOffset, uvOffset)\n    {\n        let triangle = new Triangle (\n            vertexOffset + v0,\n            vertexOffset + v1,\n            vertexOffset + v2\n        );\n        if (hasVertexColors) {\n            triangle.SetVertexColors (\n                vertexColorOffset + v0,\n                vertexColorOffset + v1,\n                vertexColorOffset + v2\n            );\n        }\n        if (hasNormals) {\n            triangle.SetNormals (\n                normalOffset + v0,\n                normalOffset + v1,\n                normalOffset + v2\n            );\n        }\n        if (hasUVs) {\n            triangle.SetTextureUVs (\n                uvOffset + v0,\n                uvOffset + v1,\n                uvOffset + v2\n            );\n        }\n        if (primitive.material !== undefined) {\n            triangle.mat = primitive.material;\n        }\n        mesh.AddTriangle (triangle);\n    }\n\n    ImportNodes (gltf)\n    {\n        let scene = this.GetDefaultScene (gltf);\n        if (scene === null) {\n            return;\n        }\n        let rootNode = this.model.GetRootNode ();\n        for (let nodeIndex of scene.nodes) {\n            let gltfNode = gltf.nodes[nodeIndex];\n            this.ImportNode (gltf, gltfNode, rootNode);\n        }\n    }\n\n    ImportNode (gltf, gltfNode, parentNode)\n    {\n        function GetNodeTransformation (gltfNode)\n        {\n            let matrix = new Matrix ().CreateIdentity ();\n            if (gltfNode.matrix !== undefined) {\n                matrix.Set (gltfNode.matrix);\n            } else {\n                let translation = [0.0, 0.0, 0.0];\n                let rotation = [0.0, 0.0, 0.0, 1.0];\n                let scale = [1.0, 1.0, 1.0];\n                if (gltfNode.translation !== undefined) {\n                    translation = gltfNode.translation;\n                }\n                if (gltfNode.rotation !== undefined) {\n                    rotation = gltfNode.rotation;\n                }\n                if (gltfNode.scale !== undefined) {\n                    scale = gltfNode.scale;\n                }\n                matrix.ComposeTRS (\n                    ArrayToCoord3D (translation),\n                    ArrayToQuaternion (rotation),\n                    ArrayToCoord3D (scale)\n                );\n            }\n            return new Transformation (matrix);\n        }\n\n        if (gltfNode.children === undefined && gltfNode.mesh === undefined) {\n            return;\n        }\n\n        let node = new Node ();\n        if (gltfNode.name !== undefined) {\n            node.SetName (gltfNode.name);\n        }\n        node.SetTransformation (GetNodeTransformation (gltfNode));\n        parentNode.AddChildNode (node);\n\n        if (gltfNode.children !== undefined) {\n            for (let childIndex of gltfNode.children) {\n                let childGltfNode = gltf.nodes[childIndex];\n                this.ImportNode (gltf, childGltfNode, node);\n            }\n        }\n\n        if (gltfNode.mesh !== undefined) {\n            if (gltfNode.children === undefined || gltfNode.children.length === 0) {\n                node.SetType (NodeType.MeshNode);\n            }\n            node.AddMeshIndex (gltfNode.mesh);\n        }\n    }\n\n    GetReaderFromBufferView (bufferView)\n    {\n        let bufferIndex = bufferView.buffer || 0;\n        let buffer = this.bufferContents[bufferIndex];\n        if (buffer === undefined || buffer === null) {\n            return null;\n        }\n\n        let reader = new GltfBufferReader (buffer);\n        reader.SkipBytes (bufferView.byteOffset || 0);\n        let byteStride = bufferView.byteStride;\n        if (byteStride !== undefined && byteStride !== 0) {\n            reader.SetByteStride (byteStride);\n        }\n\n        return reader;\n    }\n\n    GetReaderFromAccessor (gltf, accessor)\n    {\n        let bufferViewIndex = accessor.bufferView || 0;\n        let bufferView = gltf.bufferViews[bufferViewIndex];\n        let reader = this.GetReaderFromBufferView (bufferView);\n        if (reader === null) {\n            return null;\n        }\n\n        reader.SetComponentType (accessor.componentType);\n        reader.SetDataType (accessor.type);\n        reader.SetDataCount (accessor.count);\n        reader.SkipBytes (accessor.byteOffset || 0);\n\n        if (accessor.sparse !== undefined) {\n            let indexReader = this.GetReaderFromSparseAccessor (gltf, accessor.sparse.indices, accessor.sparse.indices.componentType, 'SCALAR', accessor.sparse.count);\n            let valueReader = this.GetReaderFromSparseAccessor (gltf, accessor.sparse.values, accessor.componentType, accessor.type, accessor.sparse.count);\n            if (indexReader !== null && valueReader !== null) {\n                reader.SetSparseReader (indexReader, valueReader);\n            }\n        }\n        return reader;\n    }\n\n    GetReaderFromSparseAccessor (gltf, sparseAccessor, componentType, type, count)\n    {\n        if (sparseAccessor.bufferView === undefined) {\n            return null;\n        }\n\n        let bufferView = gltf.bufferViews[sparseAccessor.bufferView];\n        let reader = this.GetReaderFromBufferView (bufferView);\n        if (reader === null) {\n            return null;\n        }\n\n        reader.SetComponentType (componentType);\n        reader.SetDataType (type);\n        reader.SetDataCount (count);\n        reader.SkipBytes (sparseAccessor.byteOffset || 0);\n        return reader;\n    }\n}\n", "import { Coord3D } from '../geometry/coord3d.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { Matrix } from '../geometry/matrix.js';\nimport { Transformation } from '../geometry/transformation.js';\nimport { LoadExternalLibrary } from '../io/externallibs.js';\nimport { ColorFromFloatComponents, IntegerToHexString } from '../model/color.js';\nimport { PhongMaterial } from '../model/material.js';\nimport { Mesh } from '../model/mesh.js';\nimport { Property, PropertyGroup, PropertyType } from '../model/property.js';\nimport { Triangle } from '../model/triangle.js';\nimport { ImporterBase } from './importerbase.js';\nimport { UpdateMaterialTransparency } from './importerutils.js';\n\nexport class ImporterIfc extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n        this.ifc = null;\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'ifc';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n\tClearContent ()\n\t{\n        this.materialNameToIndex = null;\n        this.expressIDToMesh = null;\n\t}\n\n    ResetContent ()\n    {\n        this.materialNameToIndex = new Map ();\n        this.expressIDToMesh = new Map ();\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n\t\tif (this.ifc === null) {\n\t\t\tLoadExternalLibrary ('loaders/web-ifc-api-browser.js').then (() => {\n                this.ifc = new WebIFC.IfcAPI ();\n                this.ifc.Init ().then (() => {\n                    this.ImportIfcContent (fileContent);\n                    onFinish ();\n                });\n            }).catch (() => {\n                this.SetError ('Failed to load web-ifc.');\n                onFinish ();\n            });\n\t\t} else {\n\t\t\tthis.ImportIfcContent (fileContent);\n\t\t\tonFinish ();\n\t\t}\n    }\n\n\tImportIfcContent (fileContent)\n\t{\n        const fileBuffer = new Uint8Array (fileContent);\n\t\tconst modelID = this.ifc.OpenModel (fileBuffer, {\n            COORDINATE_TO_ORIGIN : true\n        });\n        const ifcMeshes = this.ifc.LoadAllGeometry (modelID);\n        for (let meshIndex = 0; meshIndex < ifcMeshes.size (); meshIndex++) {\n            const ifcMesh = ifcMeshes.get (meshIndex);\n            if (ifcMesh.geometries.size () > 0) {\n                this.ImportIfcMesh (modelID, ifcMesh);\n            }\n        }\n        this.ImportProperties (modelID);\n        this.ifc.CloseModel (modelID);\n\t}\n\n    ImportIfcMesh (modelID, ifcMesh)\n    {\n        let mesh = new Mesh ();\n        mesh.SetName ('Mesh ' + ifcMesh.expressID.toString ());\n\n        let vertexOffset = 0;\n        const ifcGeometries = ifcMesh.geometries;\n        for (let geometryIndex = 0; geometryIndex < ifcGeometries.size (); geometryIndex++) {\n            const ifcGeometry = ifcGeometries.get (geometryIndex);\n            const ifcGeometryData = this.ifc.GetGeometry (modelID, ifcGeometry.geometryExpressID);\n            const ifcVertices = this.ifc.GetVertexArray (ifcGeometryData.GetVertexData (), ifcGeometryData.GetVertexDataSize ());\n            const ifcIndices = this.ifc.GetIndexArray (ifcGeometryData.GetIndexData (), ifcGeometryData.GetIndexDataSize ());\n            const materialIndex = this.GetMaterialIndexByColor (ifcGeometry.color);\n            const matrix = new Matrix (ifcGeometry.flatTransformation);\n            const transformation = new Transformation (matrix);\n\n            for (let i = 0; i < ifcVertices.length; i += 6) {\n                const x = ifcVertices[i];\n                const y = ifcVertices[i + 1];\n                const z = ifcVertices[i + 2];\n                const coord = new Coord3D (x, y, z);\n                const transformed = transformation.TransformCoord3D (coord);\n                mesh.AddVertex (transformed);\n            }\n            // TODO: normals\n            for (let i = 0; i < ifcIndices.length; i += 3) {\n                const v0 = ifcIndices[i];\n                const v1 = ifcIndices[i + 1];\n                const v2 = ifcIndices[i + 2];\n                const triangle = new Triangle (\n                    vertexOffset + v0,\n                    vertexOffset + v1,\n                    vertexOffset + v2\n                );\n                triangle.SetMaterial (materialIndex);\n                mesh.AddTriangle (triangle);\n            }\n            vertexOffset += ifcVertices.length / 6;\n        }\n\n        this.expressIDToMesh.set (ifcMesh.expressID, mesh);\n        this.model.AddMeshToRootNode (mesh);\n    }\n\n    ImportProperties (modelID)\n    {\n        const lines = this.ifc.GetLineIDsWithType (modelID, WebIFC.IFCRELDEFINESBYPROPERTIES);\n        for (let i = 0; i < lines.size (); i++) {\n            const relID = lines.get (i);\n            const rel = this.ifc.GetLine (modelID, relID);\n            if (Array.isArray (rel.RelatingPropertyDefinition)) {\n                continue;\n            }\n            rel.RelatedObjects.forEach ((objectRelID) => {\n                let element = null;\n                if (this.expressIDToMesh.has (objectRelID.value)) {\n                    element = this.expressIDToMesh.get (objectRelID.value);\n                } else {\n                    let propSetOwner = this.ifc.GetLine (modelID, objectRelID.value, true);\n                    if (propSetOwner.type === WebIFC.IFCBUILDING) {\n                        element = this.model;\n                    }\n                }\n                if (element === null) {\n                    return;\n                }\n                let propSetDef = rel.RelatingPropertyDefinition;\n                let propSet = this.ifc.GetLine (modelID, propSetDef.value, true);\n                if (!propSet || !propSet.HasProperties) {\n                    return;\n                }\n                let propertyGroup = new PropertyGroup (propSet.Name.value);\n                propSet.HasProperties.forEach ((property) => {\n                    if (!property || !property.Name || !property.NominalValue) {\n                        return;\n                    }\n                    let elemProperty = null;\n                    let propertyName = this.GetIFCString (property.Name.value);\n                    let strValue = null;\n                    switch (property.NominalValue.label) {\n                        case 'IFCTEXT':\n                        case 'IFCLABEL':\n                        case 'IFCIDENTIFIER':\n                            elemProperty = new Property (PropertyType.Text, propertyName, this.GetIFCString (property.NominalValue.value));\n                            break;\n                        case 'IFCBOOLEAN':\n                        case 'IFCLOGICAL':\n                            strValue = 'Unknown';\n                            if (property.NominalValue.value === 'T') {\n                                strValue = 'True';\n                            } else if (property.NominalValue.value === 'F') {\n                                strValue = 'False';\n                            }\n                            elemProperty = new Property (PropertyType.Text, propertyName, strValue);\n                            break;\n                        case 'IFCINTEGER':\n                        case 'IFCCOUNTMEASURE':\n                            elemProperty = new Property (PropertyType.Integer, propertyName, property.NominalValue.value);\n                            break;\n                        case 'IFCREAL':\n                        case 'IFCLENGTHMEASURE':\n                        case 'IFCPOSITIVELENGTHMEASURE':\n                        case 'IFCAREAMEASURE':\n                        case 'IFCVOLUMEMEASURE':\n                        case 'IFCRATIOMEASURE':\n                        case 'IFCPOSITIVERATIOMEASURE':\n                        case 'IFCMASSMEASURE':\n                        case 'IFCMASSPERLENGTHMEASURE':\n                        case 'IFCPLANEANGLEMEASURE':\n                        case 'IFCTHERMALTRANSMITTANCEMEASURE':\n                            elemProperty = new Property (PropertyType.Number, propertyName, property.NominalValue.value);\n                            break;\n                        default:\n                            // TODO\n                            console.log (property.NominalValue.label);\n                            console.log (property.NominalValue.value);\n                            break;\n                    }\n                    if (elemProperty !== null) {\n                        propertyGroup.AddProperty (elemProperty);\n                    }\n                });\n                if (propertyGroup.PropertyCount () > 0) {\n                    element.AddPropertyGroup (propertyGroup);\n                }\n            });\n        }\n    }\n\n    GetMaterialIndexByColor (ifcColor)\n    {\n        const color = ColorFromFloatComponents (ifcColor.x, ifcColor.y, ifcColor.z);\n\n        const materialName = 'Color ' +\n            IntegerToHexString (color.r) +\n            IntegerToHexString (color.g) +\n            IntegerToHexString (color.b) +\n            IntegerToHexString (parseInt (ifcColor.w * 255.0, 10));\n\n        if (this.materialNameToIndex.has (materialName)) {\n            return this.materialNameToIndex.get (materialName);\n        } else {\n\t\t\tlet material = new PhongMaterial ();\n            material.name = materialName;\n\t\t\tmaterial.color = color;\n            material.opacity = ifcColor.w;\n            UpdateMaterialTransparency (material);\n            let materialIndex = this.model.AddMaterial (material);\n            this.materialNameToIndex.set (materialName, materialIndex);\n            return materialIndex;\n        }\n    }\n\n    GetIFCString (ifcString)\n    {\n        let decoded = this.DecodeIFCString (ifcString);\n        if (decoded.length === 0) {\n            decoded = '-';\n        }\n        return decoded;\n    }\n\n    DecodeIFCString (ifcString)\n    {\n        // TODO: https://github.com/tomvandig/web-ifc/issues/58\n        const ifcUnicodeRegEx = /\\\\X2\\\\(.*?)\\\\X0\\\\/uig;\n        let resultString = ifcString;\n        let match = ifcUnicodeRegEx.exec (ifcString);\n        while (match) {\n            const unicodeChar = String.fromCharCode (parseInt (match[1], 16));\n            resultString = resultString.replace (match[0], unicodeChar);\n            match = ifcUnicodeRegEx.exec (ifcString);\n        }\n        return resultString;\n    }\n}\n", "import { Coord2D } from '../geometry/coord2d.js';\nimport { Coord3D } from '../geometry/coord3d.js';\nimport { IsPositive, IsNegative, IsZero } from '../geometry/geometry.js';\nimport { Mesh } from './mesh.js';\nimport { Triangle } from './triangle.js';\n\nexport class GeneratorParams\n{\n    constructor ()\n    {\n        this.name = null;\n        this.material = null;\n    }\n\n    SetName (name)\n    {\n        this.name = name;\n        return this;\n    }\n\n    SetMaterial (material)\n    {\n        this.material = material;\n        return this;\n    }\n}\n\nexport class Generator\n{\n    constructor (params)\n    {\n        this.params = params || new GeneratorParams ();\n        this.mesh = new Mesh ();\n        if (this.params.name !== null) {\n            this.mesh.SetName (this.params.name);\n        }\n        this.curve = null;\n    }\n\n    GetMesh ()\n    {\n        return this.mesh;\n    }\n\n    AddVertex (x, y, z)\n    {\n        let coord = new Coord3D (x, y, z);\n        return this.mesh.AddVertex (coord);\n    }\n\n    AddVertices (vertices)\n    {\n        let indices = [];\n        for (let i = 0; i < vertices.length; i++) {\n            let vertex = vertices[i];\n            indices.push (this.AddVertex (vertex.x, vertex.y, vertex.z));\n        }\n        return indices;\n    }\n\n    SetCurve (curve)\n    {\n        this.curve = curve;\n    }\n\n    ResetCurve ()\n    {\n        this.curve = null;\n    }\n\n    AddTriangle (v0, v1, v2)\n    {\n        let triangle = new Triangle (v0, v1, v2);\n        if (this.params.material !== null) {\n            triangle.mat = this.params.material;\n        }\n        if (this.curve !== null) {\n            triangle.SetCurve (this.curve);\n        }\n        return this.mesh.AddTriangle (triangle);\n    }\n\n    AddTriangleInverted (v0, v1, v2)\n    {\n        this.AddTriangle (v0, v2, v1);\n    }\n\n    AddConvexPolygon (vertices)\n    {\n        for (let vertexIndex = 0; vertexIndex < vertices.length - 2; vertexIndex++) {\n            this.AddTriangle (\n                vertices[0],\n                vertices[vertexIndex + 1],\n                vertices[vertexIndex + 2]\n            );\n        }\n    }\n\n    AddConvexPolygonInverted (vertices)\n    {\n        for (let vertexIndex = 0; vertexIndex < vertices.length - 2; vertexIndex++) {\n            this.AddTriangleInverted (\n                vertices[0],\n                vertices[vertexIndex + 1],\n                vertices[vertexIndex + 2]\n            );\n        }\n    }\n}\n\nexport class GeneratorHelper\n{\n    constructor (generator)\n    {\n        this.generator = generator;\n    }\n\n    GenerateSurfaceBetweenPolygons (startIndices, endIndices)\n    {\n        if (startIndices.length !== endIndices.length) {\n            return;\n        }\n        const vertexCount = startIndices.length;\n        for (let i = 0; i < vertexCount; i++) {\n            const index = i;\n            const nextIndex = (i < vertexCount - 1) ? index + 1 : 0;\n            this.generator.AddConvexPolygon ([\n                startIndices[index],\n                startIndices[nextIndex],\n                endIndices[nextIndex],\n                endIndices[index]\n            ]);\n        }\n    }\n\n    GenerateTriangleFan (startIndices, endIndex)\n    {\n        const vertexCount = startIndices.length;\n        for (let i = 0; i < vertexCount; i++) {\n            const index = i;\n            const nextIndex = (i < vertexCount - 1) ? index + 1 : 0;\n            this.generator.AddTriangle (\n                endIndex,\n                startIndices[index],\n                startIndices[nextIndex]\n            );\n        }\n    }\n}\n\nfunction GetCylindricalCoord (radius, angle)\n{\n    return new Coord2D (\n        radius * Math.cos (angle),\n        radius * Math.sin (angle)\n    );\n}\n\nexport function GenerateCuboid (genParams, xSize, ySize, zSize)\n{\n    if (!IsPositive (xSize) || !IsPositive (ySize) || !IsPositive (zSize)) {\n        return null;\n    }\n\n    let generator = new Generator (genParams);\n\n    generator.AddVertex (0.0, 0.0, 0.0);\n    generator.AddVertex (xSize, 0.0, 0.0);\n    generator.AddVertex (xSize, ySize, 0.0);\n    generator.AddVertex (0.0, ySize, 0.0);\n    generator.AddVertex (0.0, 0.0, zSize);\n    generator.AddVertex (xSize, 0.0, zSize);\n    generator.AddVertex (xSize, ySize, zSize);\n    generator.AddVertex (0.0, ySize, zSize);\n\n    generator.AddConvexPolygon ([0, 3, 2, 1]);\n    generator.AddConvexPolygon ([0, 1, 5, 4]);\n    generator.AddConvexPolygon ([1, 2, 6, 5]);\n    generator.AddConvexPolygon ([2, 3, 7, 6]);\n    generator.AddConvexPolygon ([3, 0, 4, 7]);\n    generator.AddConvexPolygon ([4, 5, 6, 7]);\n\n    return generator.GetMesh ();\n}\n\nexport function GenerateCone (genParams, topRadius, bottomRadius, height, segments, smooth)\n{\n    if (IsNegative (topRadius) || IsNegative (bottomRadius)) {\n        return null;\n    }\n\n    if (!IsPositive (height) || segments < 3) {\n        return null;\n    }\n\n    let isZeroTop = IsZero (topRadius);\n    let isZeroBottom = IsZero (bottomRadius);\n    if (isZeroTop && isZeroBottom) {\n        return null;\n    }\n\n    let generator = new Generator (genParams);\n    let helper = new GeneratorHelper (generator);\n    const step = 2.0 * Math.PI / segments;\n    const curve = (smooth ? 1 : null);\n\n    let topPolygon = [];\n    if (isZeroTop) {\n        topPolygon.push (generator.AddVertex (0.0, 0.0, height));\n    } else {\n        for (let i = 0; i < segments; i++) {\n            let topVertex = GetCylindricalCoord (topRadius, i * step);\n            topPolygon.push (generator.AddVertex (topVertex.x, topVertex.y, height));\n        }\n    }\n\n    let bottomPolygon = [];\n    if (isZeroBottom) {\n        bottomPolygon.push (generator.AddVertex (0.0, 0.0, 0.0));\n    } else {\n        for (let i = 0; i < segments; i++) {\n            let bottomVertex = GetCylindricalCoord (bottomRadius, i * step);\n            bottomPolygon.push (generator.AddVertex (bottomVertex.x, bottomVertex.y, 0.0));\n        }\n    }\n\n    if (isZeroTop) {\n        generator.SetCurve (curve);\n        helper.GenerateTriangleFan (bottomPolygon, topPolygon[0]);\n        generator.ResetCurve ();\n        generator.AddConvexPolygonInverted (bottomPolygon);\n    } else if (isZeroBottom) {\n        generator.SetCurve (curve);\n        helper.GenerateTriangleFan (topPolygon.slice ().reverse (), bottomPolygon[0]);\n        generator.ResetCurve ();\n        generator.AddConvexPolygon (topPolygon);\n    } else {\n        generator.SetCurve (curve);\n        helper.GenerateSurfaceBetweenPolygons (bottomPolygon, topPolygon);\n        generator.ResetCurve ();\n        generator.AddConvexPolygonInverted (bottomPolygon);\n        generator.AddConvexPolygon (topPolygon);\n    }\n\n    return generator.GetMesh ();\n}\n\nexport function GenerateCylinder (genParams, radius, height, segments, smooth)\n{\n    return GenerateCone (genParams, radius, radius, height, segments, smooth);\n}\n\nexport function GenerateSphere (genParams, radius, segments, smooth)\n{\n    function GetSphericalCoord (radius, theta, phi)\n    {\n        return new Coord3D (\n            radius * Math.sin (theta) * Math.cos (phi),\n            radius * Math.sin (theta) * Math.sin (phi),\n            radius * Math.cos (theta)\n        );\n    }\n\n    if (!IsPositive (radius) || segments < 3) {\n        return null;\n    }\n\n    let generator = new Generator (genParams);\n    let helper = new GeneratorHelper (generator);\n\n    generator.SetCurve (smooth ? 1 : null);\n\n    let allLevelVertices = [];\n    let levels = segments + 1;\n    const levelStep = Math.PI / segments;\n\tconst cylindricalStep = 2.0 * Math.PI / segments;\n    for (let levelIndex = 1; levelIndex < levels - 1; levelIndex++) {\n        let levelVertices = [];\n        let theta = levelIndex * levelStep;\n        for (let cylindricalIndex = 0; cylindricalIndex < segments; cylindricalIndex++) {\n            let phi = cylindricalIndex * cylindricalStep;\n            let vertex = GetSphericalCoord (radius, theta, -phi);\n            levelVertices.push (generator.AddVertex (vertex.x, vertex.y, vertex.z));\n        }\n        if (levelIndex > 1) {\n            helper.GenerateSurfaceBetweenPolygons (allLevelVertices[allLevelVertices.length - 1], levelVertices);\n        }\n        allLevelVertices.push (levelVertices);\n    }\n\n    let topVertex = generator.AddVertex (0.0, 0.0, radius);\n    let bottomVertex = generator.AddVertex (0.0, 0.0, -radius);\n    helper.GenerateTriangleFan (allLevelVertices[0].slice ().reverse (), topVertex);\n    helper.GenerateTriangleFan (allLevelVertices[allLevelVertices.length - 1], bottomVertex);\n\n    generator.ResetCurve ();\n\n    return generator.GetMesh ();\n}\n\nexport function GeneratePlatonicSolid (genParams, type, radius)\n{\n    function AddVertex (generator, radius, x, y, z)\n    {\n        let vertex = new Coord3D (x, y, z);\n        vertex.MultiplyScalar (radius / vertex.Length ());\n        generator.AddVertex (vertex.x, vertex.y, vertex.z);\n    }\n\n    if (!IsPositive (radius)) {\n        return null;\n    }\n\n    let generator = new Generator (genParams);\n    if (type === 'tetrahedron') {\n        let a = 1.0;\n        AddVertex (generator, radius, +a, +a, +a);\n        AddVertex (generator, radius, -a, -a, +a);\n        AddVertex (generator, radius, -a, +a, -a);\n        AddVertex (generator, radius, +a, -a, -a);\n        generator.AddTriangle (0, 1, 3);\n        generator.AddTriangle (0, 2, 1);\n        generator.AddTriangle (0, 3, 2);\n        generator.AddTriangle (1, 2, 3);\n    } else if (type === 'hexahedron') {\n        let a = 1.0;\n        AddVertex (generator, radius, +a, +a, +a);\n        AddVertex (generator, radius, +a, +a, -a);\n        AddVertex (generator, radius, +a, -a, +a);\n        AddVertex (generator, radius, +a, -a, -a);\n        AddVertex (generator, radius, -a, +a, +a);\n        AddVertex (generator, radius, -a, +a, -a);\n        AddVertex (generator, radius, -a, -a, +a);\n        AddVertex (generator, radius, -a, -a, -a);\n        generator.AddConvexPolygon ([0, 1, 5, 4]);\n        generator.AddConvexPolygon ([0, 2, 3, 1]);\n        generator.AddConvexPolygon ([0, 4, 6, 2]);\n        generator.AddConvexPolygon ([1, 3, 7, 5]);\n        generator.AddConvexPolygon ([2, 6, 7, 3]);\n        generator.AddConvexPolygon ([4, 5, 7, 6]);\n    } else if (type === 'octahedron') {\n        let a = 1.0;\n        let b = 0.0;\n        AddVertex (generator, radius, +a, +b, +b);\n        AddVertex (generator, radius, -a, +b, +b);\n        AddVertex (generator, radius, +b, +a, +b);\n        AddVertex (generator, radius, +b, -a, +b);\n        AddVertex (generator, radius, +b, +b, +a);\n        AddVertex (generator, radius, +b, +b, -a);\n        generator.AddTriangle (0, 2, 4);\n        generator.AddTriangle (0, 3, 5);\n        generator.AddTriangle (0, 4, 3);\n        generator.AddTriangle (0, 5, 2);\n        generator.AddTriangle (1, 2, 5);\n        generator.AddTriangle (1, 3, 4);\n        generator.AddTriangle (1, 4, 2);\n        generator.AddTriangle (1, 5, 3);\n    } else if (type === 'dodecahedron') {\n        let a = 1.0;\n        let b = 0.0;\n        let c = (1.0 + Math.sqrt (5.0)) / 2.0;\n        let d = 1.0 / c;\n        AddVertex (generator, radius, +a, +a, +a);\n        AddVertex (generator, radius, +a, +a, -a);\n        AddVertex (generator, radius, +a, -a, +a);\n        AddVertex (generator, radius, -a, +a, +a);\n        AddVertex (generator, radius, +a, -a, -a);\n        AddVertex (generator, radius, -a, +a, -a);\n        AddVertex (generator, radius, -a, -a, +a);\n        AddVertex (generator, radius, -a, -a, -a);\n        AddVertex (generator, radius, +b, +d, +c);\n        AddVertex (generator, radius, +b, +d, -c);\n        AddVertex (generator, radius, +b, -d, +c);\n        AddVertex (generator, radius, +b, -d, -c);\n        AddVertex (generator, radius, +d, +c, +b);\n        AddVertex (generator, radius, +d, -c, +b);\n        AddVertex (generator, radius, -d, +c, +b);\n        AddVertex (generator, radius, -d, -c, +b);\n        AddVertex (generator, radius, +c, +b, +d);\n        AddVertex (generator, radius, -c, +b, +d);\n        AddVertex (generator, radius, +c, +b, -d);\n        AddVertex (generator, radius, -c, +b, -d);\n        generator.AddConvexPolygon ([0, 8, 10, 2, 16]);\n        generator.AddConvexPolygon ([0, 16, 18, 1, 12]);\n        generator.AddConvexPolygon ([0, 12, 14, 3, 8]);\n        generator.AddConvexPolygon ([1, 9, 5, 14, 12]);\n        generator.AddConvexPolygon ([1, 18, 4, 11, 9]);\n        generator.AddConvexPolygon ([2, 10, 6, 15, 13]);\n        generator.AddConvexPolygon ([2, 13, 4, 18, 16]);\n        generator.AddConvexPolygon ([3, 14, 5, 19, 17]);\n        generator.AddConvexPolygon ([3, 17, 6, 10, 8]);\n        generator.AddConvexPolygon ([4, 13, 15, 7, 11]);\n        generator.AddConvexPolygon ([5, 9, 11, 7, 19]);\n        generator.AddConvexPolygon ([6, 17, 19, 7, 15]);\n    } else if (type === 'icosahedron') {\n        let a = 1.0;\n        let b = 0.0;\n        let c = (1.0 + Math.sqrt (5.0)) / 2.0;\n        AddVertex (generator, radius, +b, +a, +c);\n        AddVertex (generator, radius, +b, +a, -c);\n        AddVertex (generator, radius, +b, -a, +c);\n        AddVertex (generator, radius, +b, -a, -c);\n        AddVertex (generator, radius, +a, +c, +b);\n        AddVertex (generator, radius, +a, -c, +b);\n        AddVertex (generator, radius, -a, +c, +b);\n        AddVertex (generator, radius, -a, -c, +b);\n        AddVertex (generator, radius, +c, +b, +a);\n        AddVertex (generator, radius, +c, +b, -a);\n        AddVertex (generator, radius, -c, +b, +a);\n        AddVertex (generator, radius, -c, +b, -a);\n        generator.AddTriangle (0, 2, 8);\n        generator.AddTriangle (0, 4, 6);\n        generator.AddTriangle (0, 6, 10);\n        generator.AddTriangle (0, 8, 4);\n        generator.AddTriangle (0, 10, 2);\n        generator.AddTriangle (1, 3, 11);\n        generator.AddTriangle (1, 4, 9);\n        generator.AddTriangle (1, 6, 4);\n        generator.AddTriangle (1, 9, 3);\n        generator.AddTriangle (1, 11, 6);\n        generator.AddTriangle (2, 5, 8);\n        generator.AddTriangle (2, 7, 5);\n        generator.AddTriangle (2, 10, 7);\n        generator.AddTriangle (3, 5, 7);\n        generator.AddTriangle (3, 7, 11);\n        generator.AddTriangle (3, 9, 5);\n        generator.AddTriangle (4, 8, 9);\n        generator.AddTriangle (5, 9, 8);\n        generator.AddTriangle (6, 11, 10);\n        generator.AddTriangle (7, 10, 11);\n    }\n    return generator.GetMesh ();\n}\n", "import { ValueOrDefault } from '../core/core.js';\nimport { ArrayToCoord3D, Coord3D } from '../geometry/coord3d.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { Matrix } from '../geometry/matrix.js';\nimport { ArrayToQuaternion, Quaternion } from '../geometry/quaternion.js';\nimport { Transformation } from '../geometry/transformation.js';\nimport { ArrayBufferToUtf8String } from '../io/bufferutils.js';\nimport { ArrayToColor } from '../model/color.js';\nimport { GenerateCone, GenerateCuboid, GenerateCylinder, GeneratePlatonicSolid, GenerateSphere, GeneratorParams } from '../model/generator.js';\nimport { PhysicalMaterial } from '../model/material.js';\nimport { Node, NodeType } from '../model/node.js';\nimport { Property, PropertyGroup, PropertyType } from '../model/property.js';\nimport { ImporterBase } from './importerbase.js';\n\nexport class ImporterO3dv extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'o3dv';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Z;\n    }\n\n    ClearContent ()\n    {\n\n    }\n\n    ResetContent ()\n    {\n\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        let textContent = ArrayBufferToUtf8String (fileContent);\n        let content = JSON.parse (textContent);\n        if (content.root === undefined) {\n            onFinish ();\n            return;\n        }\n\n        if (content.materials !== undefined) {\n            for (let i = 0; i < content.materials.length; i++) {\n                const materialContent = content.materials[i];\n                this.ImportMaterial (materialContent);\n            }\n        }\n        if (content.meshes !== undefined) {\n            for (let i = 0; i < content.meshes.length; i++) {\n                const meshContent = content.meshes[i];\n                this.ImportMesh (meshContent);\n            }\n        }\n\n        let rootNode = content.nodes[content.root];\n        this.ImportNode (content, rootNode, this.model.GetRootNode ());\n        this.ImportProperties (this.model, content);\n\n        onFinish ();\n    }\n\n    ImportMaterial (materialContent)\n    {\n        let material = new PhysicalMaterial ();\n        material.color.Set (255, 255, 255);\n        if (materialContent.name !== undefined) {\n            material.name = materialContent.name;\n        }\n        if (materialContent.color !== undefined) {\n            material.color = ArrayToColor (materialContent.color);\n        }\n        material.metalness = ValueOrDefault (materialContent.metalness, 0.0);\n        material.roughness = ValueOrDefault (materialContent.roughness, 1.0);\n        this.model.AddMaterial (material);\n    }\n\n    ImportMesh (meshContent)\n    {\n        let genParams = new GeneratorParams ();\n        if (meshContent.name !== undefined) {\n            genParams.SetName (meshContent.name);\n        }\n        if (meshContent.material !== undefined) {\n            genParams.SetMaterial (meshContent.material);\n        }\n\n        let parameters = meshContent.parameters;\n        if (parameters === undefined) {\n            return;\n        }\n\n        let mesh = null;\n        if (meshContent.type === 'cuboid') {\n            if (parameters.size_x === undefined || parameters.size_y === undefined || parameters.size_z === undefined) {\n                return;\n            }\n            mesh = GenerateCuboid (genParams, parameters.size_x, parameters.size_y, parameters.size_z);\n        } else if (meshContent.type === 'cylinder') {\n            if (parameters.radius === undefined || parameters.height === undefined) {\n                return;\n            }\n            let segments = ValueOrDefault (parameters.segments, 25);\n            let smooth = ValueOrDefault (parameters.smooth, true);\n            mesh = GenerateCylinder (genParams, parameters.radius, parameters.height, segments, smooth);\n        } else if (meshContent.type === 'cone') {\n            if (parameters.top_radius === undefined || parameters.bottom_radius === undefined || parameters.height === undefined) {\n                return;\n            }\n            let segments = ValueOrDefault (parameters.segments, 25);\n            let smooth = ValueOrDefault (parameters.smooth, true);\n            mesh = GenerateCone (genParams, parameters.top_radius, parameters.bottom_radius, parameters.height, segments, smooth);\n        } else if (meshContent.type === 'sphere') {\n            if (parameters.radius === undefined) {\n                return;\n            }\n            let segments = ValueOrDefault (parameters.segments, 20);\n            let smooth = ValueOrDefault (parameters.smooth, true);\n            mesh = GenerateSphere (genParams, parameters.radius, segments, smooth);\n        } else if (meshContent.type === 'platonic') {\n            if (parameters.solid_type === undefined) {\n                return;\n            }\n            let radius = ValueOrDefault (parameters.radius, 1.0);\n            mesh = GeneratePlatonicSolid (genParams, parameters.solid_type, radius);\n        }\n        if (mesh !== null) {\n            this.ImportProperties (mesh, meshContent);\n            this.model.AddMesh (mesh);\n        }\n    }\n\n    ImportNode (content, nodeContent, node)\n    {\n        if (nodeContent.name !== undefined) {\n            node.SetName (nodeContent.name);\n        }\n        if (nodeContent.transformation !== undefined) {\n            const nodeTransformation = this.GetTransformation (nodeContent.transformation);\n            node.SetTransformation (nodeTransformation);\n        }\n        if (nodeContent.children !== undefined) {\n            for (const childIndex of nodeContent.children) {\n                let childContent = content.nodes[childIndex];\n                let childNode = new Node ();\n                node.AddChildNode (childNode);\n                this.ImportNode (content, childContent, childNode);\n            }\n        }\n        if (nodeContent.mesh !== undefined) {\n            if (nodeContent.children === undefined || nodeContent.children.length === 0) {\n                node.SetType (NodeType.MeshNode);\n            }\n            node.AddMeshIndex (nodeContent.mesh);\n        }\n    }\n\n    ImportProperties (element, nodeContent)\n    {\n        if (nodeContent.properties !== undefined) {\n            const propertyGroup = new PropertyGroup ('Properties');\n            element.AddPropertyGroup (propertyGroup);\n            for (const nodeProperty of nodeContent.properties) {\n                const property = new Property (PropertyType.Text, nodeProperty.name, nodeProperty.value);\n                propertyGroup.AddProperty (property);\n            }\n        }\n    }\n\n    GetTransformation (contentTransformation)\n    {\n        let translation = new Coord3D (0.0, 0.0, 0.0);\n        let rotation = new Quaternion (0.0, 0.0, 0.0, 1.0);\n        let scale = new Coord3D (1.0, 1.0, 1.0);\n        if (contentTransformation.translation !== undefined) {\n            translation = ArrayToCoord3D (contentTransformation.translation);\n        }\n        if (contentTransformation.rotation !== undefined) {\n            rotation = ArrayToQuaternion (contentTransformation.rotation);\n        }\n        if (contentTransformation.scale !== undefined) {\n            scale = ArrayToCoord3D (contentTransformation.scale);\n        }\n        const matrix = new Matrix ().ComposeTRS (translation, rotation, scale);\n        return new Transformation (matrix);\n    }\n}\n", "import { Coord2D } from '../geometry/coord2d.js';\nimport { Coord3D } from '../geometry/coord3d.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { ArrayBufferToUtf8String } from '../io/bufferutils.js';\nimport { Color, ColorFromFloatComponents } from '../model/color.js';\nimport { PhongMaterial, TextureMap } from '../model/material.js';\nimport { Mesh } from '../model/mesh.js';\nimport { Triangle } from '../model/triangle.js';\nimport { ImporterBase } from './importerbase.js';\nimport { NameFromLine, ParametersFromLine, ReadLines, UpdateMaterialTransparency } from './importerutils.js';\n\nclass ObjMeshConverter\n{\n    constructor (mesh)\n    {\n        this.mesh = mesh;\n        this.globalToMeshVertices = new Map ();\n        this.globalToMeshVertexColors = new Map ();\n        this.globalToMeshNormals = new Map ();\n        this.globalToMeshUvs = new Map ();\n    }\n\n    AddVertex (globalIndex, globalVertices)\n    {\n        return this.GetLocalIndex (globalIndex, globalVertices, this.globalToMeshVertices, (val) => {\n            return this.mesh.AddVertex (new Coord3D (val.x, val.y, val.z));\n        });\n    }\n\n    AddVertexColor (globalIndex, globalVertexColors)\n    {\n        return this.GetLocalIndex (globalIndex, globalVertexColors, this.globalToMeshVertexColors, (val) => {\n            return this.mesh.AddVertexColor (new Color (val.r, val.g, val.b));\n        });\n    }\n\n    AddNormal (globalIndex, globalNormals)\n    {\n        return this.GetLocalIndex (globalIndex, globalNormals, this.globalToMeshNormals, (val) => {\n            return this.mesh.AddNormal (new Coord3D (val.x, val.y, val.z));\n        });\n    }\n\n    AddUV (globalIndex, globalUvs)\n    {\n        return this.GetLocalIndex (globalIndex, globalUvs, this.globalToMeshUvs, (val) => {\n            return this.mesh.AddTextureUV (new Coord2D (val.x, val.y));\n        });\n    }\n\n    AddTriangle (triangle)\n    {\n        this.mesh.AddTriangle (triangle);\n    }\n\n    GetLocalIndex (globalIndex, globalValueArray, globalToMeshIndices, valueAdderFunc)\n    {\n        if (isNaN (globalIndex) || globalIndex < 0 || globalIndex >= globalValueArray.length) {\n            return null;\n        }\n        if (globalToMeshIndices.has (globalIndex)) {\n            return globalToMeshIndices.get (globalIndex);\n        } else {\n            let globalValue = globalValueArray[globalIndex];\n            let localIndex = valueAdderFunc (globalValue);\n            globalToMeshIndices.set (globalIndex, localIndex);\n            return localIndex;\n        }\n    }\n}\n\nfunction CreateColor (r, g, b)\n{\n    return ColorFromFloatComponents (\n        parseFloat (r),\n        parseFloat (g),\n        parseFloat (b)\n    );\n}\n\nexport class ImporterObj extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'obj';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n    ClearContent ()\n    {\n        this.globalVertices = null;\n        this.globalVertexColors = null;\n        this.globalNormals = null;\n        this.globalUvs = null;\n\n        this.currentMeshConverter = null;\n        this.currentMaterial = null;\n        this.currentMaterialIndex = null;\n\n        this.meshNameToConverter = null;\n        this.materialNameToIndex = null;\n    }\n\n    ResetContent ()\n    {\n        this.globalVertices = [];\n        this.globalVertexColors = [];\n        this.globalNormals = [];\n        this.globalUvs = [];\n\n        this.currentMeshConverter = null;\n        this.currentMaterial = null;\n        this.currentMaterialIndex = null;\n\n        this.meshNameToConverter = new Map ();\n        this.materialNameToIndex = new Map ();\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        let textContent = ArrayBufferToUtf8String (fileContent);\n        ReadLines (textContent, (line) => {\n            if (!this.WasError ()) {\n                this.ProcessLine (line);\n            }\n        });\n        onFinish ();\n    }\n\n    ProcessLine (line)\n    {\n        if (line[0] === '#') {\n            return;\n        }\n\n        let parameters = ParametersFromLine (line, '#');\n        if (parameters.length === 0) {\n            return;\n        }\n\n        let keyword = parameters[0].toLowerCase ();\n        parameters.shift ();\n\n        if (this.ProcessMeshParameter (keyword, parameters, line)) {\n            return;\n        }\n\n        if (this.ProcessMaterialParameter (keyword, parameters, line)) {\n            return;\n        }\n    }\n\n    AddNewMesh (name)\n    {\n        if (this.meshNameToConverter.has (name)) {\n            this.currentMeshConverter = this.meshNameToConverter.get (name);\n        } else {\n            let mesh = new Mesh ();\n            mesh.SetName (name);\n            this.model.AddMeshToRootNode (mesh);\n            this.currentMeshConverter = new ObjMeshConverter (mesh);\n            this.meshNameToConverter.set (name, this.currentMeshConverter);\n        }\n    }\n\n    ProcessMeshParameter (keyword, parameters, line)\n    {\n        if (keyword === 'g' || keyword === 'o') {\n            if (parameters.length === 0) {\n                return true;\n            }\n            let name = NameFromLine (line, keyword.length, '#');\n            this.AddNewMesh (name);\n            return true;\n        } else if (keyword === 'v') {\n            if (parameters.length < 3) {\n                return true;\n            }\n            this.globalVertices.push (new Coord3D (\n                parseFloat (parameters[0]),\n                parseFloat (parameters[1]),\n                parseFloat (parameters[2])\n            ));\n            if (parameters.length >= 6) {\n                this.globalVertexColors.push (CreateColor (parameters[3], parameters[4], parameters[5]));\n            }\n            return true;\n        } else if (keyword === 'vn') {\n            if (parameters.length < 3) {\n                return true;\n            }\n            this.globalNormals.push (new Coord3D (\n                parseFloat (parameters[0]),\n                parseFloat (parameters[1]),\n                parseFloat (parameters[2])\n            ));\n            return true;\n        } else if (keyword === 'vt') {\n            if (parameters.length < 2) {\n                return true;\n            }\n            this.globalUvs.push (new Coord2D (\n                parseFloat (parameters[0]),\n                parseFloat (parameters[1])\n            ));\n            return true;\n        } else if (keyword === 'f') {\n            if (parameters.length < 3) {\n                return true;\n            }\n            this.ProcessFace (parameters);\n            return true;\n        }\n\n        return false;\n    }\n\n    ProcessMaterialParameter (keyword, parameters, line)\n    {\n        function CreateTexture (keyword, line, callbacks)\n        {\n            let texture = new TextureMap ();\n            let textureName = NameFromLine (line, keyword.length, '#');\n            let textureBuffer = callbacks.getTextureBuffer (textureName);\n            texture.name = textureName;\n            if (textureBuffer !== null) {\n                texture.url = textureBuffer.url;\n                texture.buffer = textureBuffer.buffer;\n            }\n            return texture;\n        }\n\n        if (keyword === 'newmtl') {\n            if (parameters.length === 0) {\n                return true;\n            }\n\n            let material = new PhongMaterial ();\n            let materialName = NameFromLine (line, keyword.length, '#');\n            let materialIndex = this.model.AddMaterial (material);\n            material.name = materialName;\n            this.currentMaterial = material;\n            this.materialNameToIndex.set (materialName, materialIndex);\n            return true;\n        } else if (keyword === 'usemtl') {\n            if (parameters.length === 0) {\n                return true;\n            }\n\n            let materialName = NameFromLine (line, keyword.length, '#');\n            if (this.materialNameToIndex.has (materialName)) {\n                this.currentMaterialIndex = this.materialNameToIndex.get (materialName);\n            }\n            return true;\n        } else if (keyword === 'mtllib') {\n            if (parameters.length === 0) {\n                return true;\n            }\n            let fileName = NameFromLine (line, keyword.length, '#');\n            let fileBuffer = this.callbacks.getFileBuffer (fileName);\n            if (fileBuffer !== null) {\n                let textContent = ArrayBufferToUtf8String (fileBuffer);\n                ReadLines (textContent, (line) => {\n                    if (!this.WasError ()) {\n                        this.ProcessLine (line);\n                    }\n                });\n            }\n            return true;\n        } else if (keyword === 'map_kd') {\n            if (this.currentMaterial === null || parameters.length === 0) {\n                return true;\n            }\n            this.currentMaterial.diffuseMap = CreateTexture (keyword, line, this.callbacks);\n            UpdateMaterialTransparency (this.currentMaterial);\n            return true;\n        } else if (keyword === 'map_ks') {\n            if (this.currentMaterial === null || parameters.length === 0) {\n                return true;\n            }\n            this.currentMaterial.specularMap = CreateTexture (keyword, line, this.callbacks);\n            return true;\n        } else if (keyword === 'map_bump' || keyword === 'bump') {\n            if (this.currentMaterial === null || parameters.length === 0) {\n                return true;\n            }\n            this.currentMaterial.bumpMap = CreateTexture (keyword, line, this.callbacks);\n            return true;\n        } else if (keyword === 'ka') {\n            if (this.currentMaterial === null || parameters.length < 3) {\n                return true;\n            }\n            this.currentMaterial.ambient = CreateColor (parameters[0], parameters[1], parameters[2]);\n            return true;\n        } else if (keyword === 'kd') {\n            if (this.currentMaterial === null || parameters.length < 3) {\n                return true;\n            }\n            this.currentMaterial.color = CreateColor (parameters[0], parameters[1], parameters[2]);\n            return true;\n        } else if (keyword === 'ks') {\n            if (this.currentMaterial === null || parameters.length < 3) {\n                return true;\n            }\n            this.currentMaterial.specular = CreateColor (parameters[0], parameters[1], parameters[2]);\n            return true;\n        } else if (keyword === 'ns') {\n            if (this.currentMaterial === null || parameters.length < 1) {\n                return true;\n            }\n            this.currentMaterial.shininess = parseFloat (parameters[0]) / 1000.0;\n            return true;\n        } else if (keyword === 'tr') {\n            if (this.currentMaterial === null || parameters.length < 1) {\n                return true;\n            }\n            this.currentMaterial.opacity = 1.0 - parseFloat (parameters[0]);\n            UpdateMaterialTransparency (this.currentMaterial);\n            return true;\n        } else if (keyword === 'd') {\n            if (this.currentMaterial === null || parameters.length < 1) {\n                return true;\n            }\n            this.currentMaterial.opacity = parseFloat (parameters[0]);\n            UpdateMaterialTransparency (this.currentMaterial);\n            return true;\n        }\n\n        return false;\n    }\n\n    ProcessFace (parameters)\n    {\n        function GetRelativeIndex (index, count)\n        {\n            if (index > 0) {\n                return index - 1;\n            } else {\n                return count + index;\n            }\n        }\n\n        let vertices = [];\n        let colors = [];\n        let normals = [];\n        let uvs = [];\n\n        for (let i = 0; i < parameters.length; i++) {\n            let vertexParams = parameters[i].split ('/');\n            vertices.push (GetRelativeIndex (parseInt (vertexParams[0], 10), this.globalVertices.length));\n            if (this.globalVertices.length === this.globalVertexColors.length) {\n                colors.push (GetRelativeIndex (parseInt (vertexParams[0], 10), this.globalVertices.length));\n            }\n            if (vertexParams.length > 1 && vertexParams[1].length > 0) {\n                uvs.push (GetRelativeIndex (parseInt (vertexParams[1], 10), this.globalUvs.length));\n            }\n            if (vertexParams.length > 2 && vertexParams[2].length > 0) {\n                normals.push (GetRelativeIndex (parseInt (vertexParams[2], 10), this.globalNormals.length));\n            }\n        }\n\n        if (this.currentMeshConverter === null) {\n            this.AddNewMesh ('');\n        }\n\n        for (let i = 0; i < vertices.length - 2; i++) {\n            let v0 = this.currentMeshConverter.AddVertex (vertices[0], this.globalVertices);\n            let v1 = this.currentMeshConverter.AddVertex (vertices[i + 1], this.globalVertices);\n            let v2 = this.currentMeshConverter.AddVertex (vertices[i + 2], this.globalVertices);\n            if (v0 === null || v1 === null || v2 === null) {\n                this.SetError ('Invalid vertex index.');\n                break;\n            }\n\n            let triangle = new Triangle (v0, v1, v2);\n\n            if (colors.length === vertices.length) {\n                let c0 = this.currentMeshConverter.AddVertexColor (colors[0], this.globalVertexColors);\n                let c1 = this.currentMeshConverter.AddVertexColor (colors[i + 1], this.globalVertexColors);\n                let c2 = this.currentMeshConverter.AddVertexColor (colors[i + 2], this.globalVertexColors);\n                if (c0 === null || c1 === null || c2 === null) {\n                    this.SetError ('Invalid vertex color index.');\n                    break;\n                }\n                triangle.SetVertexColors (c0, c1, c2);\n            }\n\n            if (normals.length === vertices.length) {\n                let n0 = this.currentMeshConverter.AddNormal (normals[0], this.globalNormals);\n                let n1 = this.currentMeshConverter.AddNormal (normals[i + 1], this.globalNormals);\n                let n2 = this.currentMeshConverter.AddNormal (normals[i + 2], this.globalNormals);\n                if (n0 === null || n1 === null || n2 === null) {\n                    this.SetError ('Invalid normal index.');\n                    break;\n                }\n                triangle.SetNormals (n0, n1, n2);\n            }\n\n            if (uvs.length === vertices.length) {\n                let u0 = this.currentMeshConverter.AddUV (uvs[0], this.globalUvs);\n                let u1 = this.currentMeshConverter.AddUV (uvs[i + 1], this.globalUvs);\n                let u2 = this.currentMeshConverter.AddUV (uvs[i + 2], this.globalUvs);\n                if (u0 === null || u1 === null || u2 === null) {\n                    this.SetError ('Invalid uv index.');\n                    break;\n                }\n                triangle.SetTextureUVs (u0, u1, u2);\n            }\n\n            if (this.currentMaterialIndex !== null) {\n                triangle.mat = this.currentMaterialIndex;\n            }\n\n            this.currentMeshConverter.AddTriangle (triangle);\n        }\n    }\n}\n", "import { Coord3D } from '../geometry/coord3d.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { ArrayBufferToUtf8String } from '../io/bufferutils.js';\nimport { Mesh } from '../model/mesh.js';\nimport { Triangle } from '../model/triangle.js';\nimport { ImporterBase } from './importerbase.js';\nimport { ParametersFromLine, ReadLines } from './importerutils.js';\n\nexport class ImporterOff extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'off';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n    ClearContent ()\n    {\n        this.mesh = null;\n        this.status = null;\n    }\n\n    ResetContent ()\n    {\n        this.mesh = new Mesh ();\n        this.model.AddMeshToRootNode (this.mesh);\n        this.status = {\n            vertexCount : 0,\n            faceCount : 0,\n            foundVertex : 0,\n            foundFace : 0\n        };\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        let textContent = ArrayBufferToUtf8String (fileContent);\n        ReadLines (textContent, (line) => {\n            if (!this.WasError ()) {\n                this.ProcessLine (line);\n            }\n        });\n        onFinish ();\n    }\n\n    ProcessLine (line)\n    {\n        if (line[0] === '#') {\n            return;\n        }\n\n        let parameters = ParametersFromLine (line, '#');\n        if (parameters.length === 0) {\n            return;\n        }\n\n        if (parameters[0] === 'OFF') {\n            return;\n        }\n\n        if (this.status.vertexCount === 0 && this.status.faceCount === 0) {\n            if (parameters.length > 1) {\n                this.status.vertexCount = parseInt (parameters[0], 10);\n                this.status.faceCount = parseInt (parameters[1], 10);\n            }\n            return;\n        }\n\n        if (this.status.foundVertex < this.status.vertexCount) {\n            if (parameters.length >= 3) {\n                this.mesh.AddVertex (new Coord3D (\n                    parseFloat (parameters[0]),\n                    parseFloat (parameters[1]),\n                    parseFloat (parameters[2])\n                ));\n                this.status.foundVertex += 1;\n            }\n            return;\n        }\n\n        if (this.status.foundFace < this.status.faceCount) {\n            if (parameters.length >= 4) {\n                let vertexCount = parseInt (parameters[0], 10);\n                if (parameters.length < vertexCount + 1) {\n                    return;\n                }\n                for (let i = 0; i < vertexCount - 2; i++) {\n                    let v0 = parseInt (parameters[1]);\n                    let v1 = parseInt (parameters[i + 2]);\n                    let v2 = parseInt (parameters[i + 3]);\n                    let triangle = new Triangle (v0, v1, v2);\n                    this.mesh.AddTriangle (triangle);\n                }\n                this.status.foundFace += 1;\n            }\n            return;\n        }\n    }\n}\n", "import { Coord3D } from '../geometry/coord3d.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { BinaryReader } from '../io/binaryreader.js';\nimport { ArrayBufferToUtf8String } from '../io/bufferutils.js';\nimport { Color, IntegerToHexString } from '../model/color.js';\nimport { PhongMaterial } from '../model/material.js';\nimport { Mesh } from '../model/mesh.js';\nimport { Triangle } from '../model/triangle.js';\nimport { ImporterBase } from './importerbase.js';\nimport { ParametersFromLine, ReadLines, UpdateMaterialTransparency } from './importerutils.js';\n\nconst PlyHeaderCheckResult =\n{\n    Ok : 1,\n    NoVertices : 2,\n    NoFaces : 3,\n    UnknownError : 4\n};\n\nclass PlyHeader\n{\n    constructor ()\n    {\n        this.format = null;\n        this.elements = [];\n    }\n\n    SetFormat (format)\n    {\n        this.format = format;\n    }\n\n    AddElement (name, count)\n    {\n        this.elements.push ({\n            name : name,\n            count : count,\n            format : []\n        });\n    }\n\n    GetElements ()\n    {\n        return this.elements;\n    }\n\n    AddSingleFormat (elemType, name)\n    {\n        let lastElement = this.elements[this.elements.length - 1];\n        lastElement.format.push ({\n            name : name,\n            isSingle : true,\n            elemType : elemType\n        });\n    }\n\n    AddListFormat (countType, elemType, name)\n    {\n        let lastElement = this.elements[this.elements.length - 1];\n        lastElement.format.push ({\n            name : name,\n            isSingle : false,\n            countType : countType,\n            elemType : elemType\n        });\n    }\n\n    GetElement (name)\n    {\n        for (let i = 0; i < this.elements.length; i++) {\n            let element = this.elements[i];\n            if (element.name === name) {\n                return element;\n            }\n        }\n        return null;\n    }\n\n    Check ()\n    {\n        let vertex = this.GetElement ('vertex');\n        if (vertex === null || vertex.length === 0 || vertex.format.length < 3) {\n            return PlyHeaderCheckResult.NoVertices;\n        }\n\n        let face = this.GetElement ('face');\n        if (this.format === 'ascii') {\n            if (face === null || face.count === 0 || face.format.length < 0) {\n                return PlyHeaderCheckResult.NoFaces;\n            }\n        } else if (this.format === 'binary_little_endian' || this.format === 'binary_big_endian') {\n            let triStrips = this.GetElement ('tristrips');\n            let hasFaces = (face !== null && face.count > 0 && face.format.length > 0);\n            let hasTriStrips = (triStrips !== null && triStrips.count > 0 && triStrips.format.length > 0);\n            if (!hasFaces && !hasTriStrips) {\n                return PlyHeaderCheckResult.NoFaces;\n            }\n        } else {\n            return PlyHeaderCheckResult.UnknownError;\n        }\n\n        return PlyHeaderCheckResult.Ok;\n    }\n}\n\nclass PlyMaterialHandler\n{\n    constructor (model)\n    {\n        this.model = model;\n        this.colorToMaterial = new Map ();\n    }\n\n    GetMaterialIndexByColor (color)\n    {\n        let materialName = 'Color ' +\n            IntegerToHexString (color[0]) +\n            IntegerToHexString (color[1]) +\n            IntegerToHexString (color[2]) +\n            IntegerToHexString (color[3]);\n\n        if (this.colorToMaterial.has (materialName)) {\n            return this.colorToMaterial.get (materialName);\n        } else {\n            let material = new PhongMaterial ();\n            material.name = materialName;\n            material.color = new Color (color[0], color[1], color[2]);\n            material.opacity = color[3] / 255.0;\n            UpdateMaterialTransparency (material);\n            let materialIndex = this.model.AddMaterial (material);\n            this.colorToMaterial.set (materialName, materialIndex);\n            return materialIndex;\n        }\n    }\n}\n\nexport class ImporterPly extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'ply';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n    ClearContent ()\n    {\n        this.mesh = null;\n    }\n\n    ResetContent ()\n    {\n        this.mesh = new Mesh ();\n        this.model.AddMeshToRootNode (this.mesh);\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        let headerString = this.GetHeaderContent (fileContent);\n        let header = this.ReadHeader (headerString);\n        let checkResult = header.Check ();\n        if (checkResult === PlyHeaderCheckResult.Ok) {\n            if (header.format === 'ascii') {\n                let contentString = ArrayBufferToUtf8String (fileContent);\n                contentString = contentString.substring (headerString.length);\n                this.ReadAsciiContent (header, contentString);\n            } else if (header.format === 'binary_little_endian' || header.format === 'binary_big_endian') {\n                this.ReadBinaryContent (header, fileContent, headerString.length);\n            }\n        } else {\n            if (checkResult === PlyHeaderCheckResult.NoVertices) {\n                this.SetError ('The model contains no vertices.');\n            } else if (checkResult === PlyHeaderCheckResult.NoFaces) {\n                this.SetError ('The model contains no faces.');\n            } else {\n                this.SetError ('Invalid header information.');\n            }\n        }\n        onFinish ();\n    }\n\n    GetHeaderContent (fileContent)\n    {\n        let headerContent = '';\n        let bufferView = new Uint8Array (fileContent);\n        let bufferIndex = 0;\n        for (bufferIndex = 0; bufferIndex < fileContent.byteLength; bufferIndex++) {\n            headerContent += String.fromCharCode (bufferView[bufferIndex]);\n            if (headerContent.endsWith ('end_header')) {\n                break;\n            }\n        }\n        bufferIndex += 1;\n        while (bufferIndex < fileContent.byteLength) {\n            let char = String.fromCharCode (bufferView[bufferIndex]);\n            headerContent += char;\n            bufferIndex += 1;\n            if (char === '\\n') {\n                break;\n            }\n        }\n        return headerContent;\n    }\n\n    ReadHeader (headerContent)\n    {\n        let header = new PlyHeader ();\n        ReadLines (headerContent, (line) => {\n            let parameters = ParametersFromLine (line, null);\n            if (parameters.length === 0 || parameters[0] === 'comment') {\n                return;\n            }\n\n            if (parameters[0] === 'ply') {\n                return;\n            } else if (parameters[0] === 'format' && parameters.length >= 2) {\n                header.SetFormat (parameters[1]);\n            } else if (parameters[0] === 'element' && parameters.length >= 3) {\n                header.AddElement (parameters[1], parseInt (parameters[2], 10));\n            } else if (parameters[0] === 'property' && parameters.length >= 3) {\n                if (parameters[1] === 'list' && parameters.length >= 5) {\n                    header.AddListFormat (parameters[2], parameters[3], parameters[4]);\n                } else {\n                    header.AddSingleFormat (parameters[1], parameters[2]);\n                }\n            }\n        });\n\n        return header;\n    }\n\n    ReadAsciiContent (header, fileContent)\n    {\n        let vertex = header.GetElement ('vertex');\n        let face = header.GetElement ('face');\n        let foundVertex = 0;\n        let foundFace = 0;\n        ReadLines (fileContent, (line) => {\n            if (this.WasError ()) {\n                return;\n            }\n\n            let parameters = ParametersFromLine (line, null);\n            if (parameters.length === 0 || parameters[0] === 'comment') {\n                return;\n            }\n\n            if (foundVertex < vertex.count) {\n                if (parameters.length >= 3) {\n                    this.mesh.AddVertex (new Coord3D (\n                        parseFloat (parameters[0]),\n                        parseFloat (parameters[1]),\n                        parseFloat (parameters[2])\n                    ));\n                    foundVertex += 1;\n                }\n                return;\n            }\n\n            if (face !== null && foundFace < face.count) {\n                if (parameters.length >= 4) {\n                    let vertexCount = parseInt (parameters[0], 10);\n                    if (parameters.length < vertexCount + 1) {\n                        return;\n                    }\n                    for (let i = 0; i < vertexCount - 2; i++) {\n                        let v0 = parseInt (parameters[1]);\n                        let v1 = parseInt (parameters[i + 2]);\n                        let v2 = parseInt (parameters[i + 3]);\n                        let triangle = new Triangle (v0, v1, v2);\n                        this.mesh.AddTriangle (triangle);\n                    }\n                    foundFace += 1;\n                }\n                return;\n            }\n        });\n    }\n\n    ReadBinaryContent (header, fileContent, headerLength)\n    {\n        function ReadByFormat (reader, format)\n        {\n            function ReadType (reader, type)\n            {\n                if (type === 'char' || type === 'int8') {\n                    return reader.ReadCharacter8 ();\n                } else if (type === 'uchar' || type === 'uint8') {\n                    return reader.ReadUnsignedCharacter8 ();\n                } else if (type === 'short' || type === 'int16') {\n                    return reader.ReadInteger16 ();\n                } else if (type === 'ushort' || type === 'uint16') {\n                    return reader.ReadUnsignedInteger16 ();\n                } else if (type === 'int' || type === 'int32') {\n                    return reader.ReadInteger32 ();\n                } else if (type === 'uint' || type === 'uint32') {\n                    return reader.ReadUnsignedInteger32 ();\n                } else if (type === 'float' || type === 'float32') {\n                    return reader.ReadFloat32 ();\n                } else if (type === 'double' || type === 'double64') {\n                    return reader.ReadDouble64 ();\n                }\n                return null;\n            }\n\n            if (format.isSingle) {\n                return ReadType (reader, format.elemType);\n            } else {\n                let list = [];\n                let count = ReadType (reader, format.countType);\n                for (let i = 0; i < count; i++) {\n                    list.push (ReadType (reader, format.elemType));\n                }\n                return list;\n            }\n        }\n\n        function SkipFormat (reader, format, startIndex)\n        {\n            for (let i = startIndex; i < format.length; i++) {\n                ReadByFormat (reader, format[i]);\n            }\n        }\n\n        function SkipAndGetColor (reader, format, startIndex)\n        {\n            let r = null;\n            let g = null;\n            let b = null;\n            let a = 255;\n\n            for (let i = startIndex; i < format.length; i++) {\n                let currFormat = format[i];\n                let val = ReadByFormat (reader, currFormat);\n                if (currFormat.name === 'red') {\n                    r = val;\n                } else if (currFormat.name === 'green') {\n                    g = val;\n                } else if (currFormat.name === 'blue') {\n                    b = val;\n                } else if (currFormat.name === 'alpha') {\n                    a = val;\n                }\n            }\n\n            if (r !== null && g !== null && b !== null) {\n                return [r, g, b, a];\n            }\n\n            return null;\n        }\n\n        let reader = null;\n        if (header.format === 'binary_little_endian') {\n            reader = new BinaryReader (fileContent, true);\n        } else if (header.format === 'binary_big_endian') {\n            reader = new BinaryReader (fileContent, false);\n        } else {\n            return;\n        }\n        reader.Skip (headerLength);\n\n        let materialHandler = new PlyMaterialHandler (this.model);\n        let elements = header.GetElements ();\n        for (let elementIndex = 0; elementIndex < elements.length; elementIndex++) {\n            let element = elements[elementIndex];\n            if (element.name === 'vertex') {\n                for (let vertexIndex = 0; vertexIndex < element.count; vertexIndex++) {\n                    let x = ReadByFormat (reader, element.format[0]);\n                    let y = ReadByFormat (reader, element.format[1]);\n                    let z = ReadByFormat (reader, element.format[2]);\n                    let color = SkipAndGetColor (reader, element.format, 3);\n                    if (color !== null) {\n                        this.mesh.AddVertexColor (new Color (color[0], color[1], color[2]));\n                    }\n                    this.mesh.AddVertex (new Coord3D (x, y, z));\n                }\n            } else if (element.name === 'face') {\n                for (let faceIndex = 0; faceIndex < element.count; faceIndex++) {\n                    let vertices = ReadByFormat (reader, element.format[0]);\n                    let faceColor = SkipAndGetColor (reader, element.format, 1);\n                    for (let i = 0; i < vertices.length - 2; i++) {\n                        let v0 = vertices[0];\n                        let v1 = vertices[i + 1];\n                        let v2 = vertices[i + 2];\n                        let triangle = new Triangle (v0, v1, v2);\n                        if (faceColor !== null) {\n                            triangle.mat = materialHandler.GetMaterialIndexByColor (faceColor);\n                        } else if (this.mesh.VertexColorCount () > 0) {\n                            triangle.SetVertexColors (v0, v1, v2);\n                        }\n                        this.mesh.AddTriangle (triangle);\n                    }\n                }\n            } else if (element.name === 'tristrips') {\n                for (let triStripIndex = 0; triStripIndex < element.count; triStripIndex++) {\n                    let vertices = ReadByFormat (reader, element.format[0]);\n                    SkipFormat (reader, element.format, 1);\n                    let ccw = true;\n                    for (let i = 0; i < vertices.length - 2; i++) {\n                        let v0 = vertices[i];\n                        let v1 = vertices[i + 1];\n                        let v2 = vertices[i + 2];\n                        if (v2 === -1) {\n                            i += 2;\n                            ccw = true;\n                            continue;\n                        }\n                        if (!ccw) {\n                            let tmp = v1;\n                            v1 = v2;\n                            v2 = tmp;\n                        }\n                        ccw = !ccw;\n                        let triangle = new Triangle (v0, v1, v2);\n                        this.mesh.AddTriangle (triangle);\n                    }\n                }\n            } else {\n                SkipFormat (reader, element.format, 0);\n            }\n        }\n    }\n}\n", "import { Direction } from '../geometry/geometry.js';\nimport { GetExternalLibPath } from '../io/externallibs.js';\nimport { ColorFromFloatComponents, ColorToHexString } from '../model/color.js';\nimport { PhongMaterial } from '../model/material.js';\nimport { ConvertThreeGeometryToMesh } from '../threejs/threeutils.js';\nimport { ImporterBase } from './importerbase.js';\nimport { ColorToMaterialConverter } from './importerutils.js';\n\nexport class ImporterStp extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n\t\tthis.worker = null;\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'stp' || extension === 'step';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n\tClearContent ()\n\t{\n\n\t}\n\n    ResetContent ()\n    {\n\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        if (this.worker === null) {\n            let workerPath = GetExternalLibPath ('loaders/occt-import-js-worker.js');\n            this.worker = new Worker (workerPath);\n        }\n\n        let onModelConverted = (ev) => {\n            this.ImportStepContent (ev.data, onFinish);\n            this.worker.removeEventListener ('message', onModelConverted);\n        };\n\n        this.worker.addEventListener ('message', onModelConverted);\n        this.worker.addEventListener ('error', (ev) => {\n            this.worker = null;\n            this.SetError ('Failed to load occt-import-js.');\n            onFinish ();\n        });\n\n        let fileBuffer = new Uint8Array (fileContent);\n        this.worker.postMessage (fileBuffer);\n    }\n\n\tImportStepContent (stepContent, onFinish)\n\t{\n        if (!stepContent.success) {\n            return;\n        }\n        let colorToMaterial = new ColorToMaterialConverter ((color) => {\n            let material = new PhongMaterial ();\n            material.name = ColorToHexString (color).toUpperCase ();\n            material.color = color;\n            return this.model.AddMaterial (material);\n        });\n        for (let occtMesh of stepContent.meshes) {\n            let materialIndex = null;\n            if (occtMesh.color) {\n                let color = ColorFromFloatComponents (occtMesh.color[0], occtMesh.color[1], occtMesh.color[2]);\n                materialIndex = colorToMaterial.GetMaterialIndex (color);\n            }\n            let mesh = ConvertThreeGeometryToMesh (occtMesh, materialIndex);\n            if (occtMesh.name) {\n                mesh.SetName (occtMesh.name);\n            }\n            if (occtMesh.face_colors) {\n                for (let faceColorGroup of occtMesh.face_colors) {\n                    let faceColor = ColorFromFloatComponents (faceColorGroup.color[0], faceColorGroup.color[1], faceColorGroup.color[2]);\n                    let faceMaterialIndex = colorToMaterial.GetMaterialIndex (faceColor);\n                    for (let i = faceColorGroup.first; i <= faceColorGroup.last; i++) {\n                        let triangle = mesh.GetTriangle (i);\n                        triangle.SetMaterial (faceMaterialIndex);\n                    }\n                }\n            }\n            this.model.AddMeshToRootNode (mesh);\n        }\n        onFinish ();\n\t}\n}\n", "import { Coord3D } from '../geometry/coord3d.js';\nimport { Direction, IsPositive } from '../geometry/geometry.js';\nimport { BinaryReader } from '../io/binaryreader.js';\nimport { ArrayBufferToUtf8String } from '../io/bufferutils.js';\nimport { Mesh } from '../model/mesh.js';\nimport { Triangle } from '../model/triangle.js';\nimport { ImporterBase } from './importerbase.js';\nimport { NameFromLine, ParametersFromLine, ReadLines } from './importerutils.js';\n\nexport class ImporterStl extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'stl';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Z;\n    }\n\n    ClearContent ()\n    {\n        this.mesh = null;\n        this.triangle = null;\n    }\n\n    ResetContent ()\n    {\n        this.mesh = new Mesh ();\n        this.model.AddMeshToRootNode (this.mesh);\n        this.triangle = null;\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        if (this.IsBinaryStlFile (fileContent)) {\n            this.ProcessBinary (fileContent);\n        } else {\n            let textContent = ArrayBufferToUtf8String (fileContent);\n            ReadLines (textContent, (line) => {\n                if (!this.WasError ()) {\n                    this.ProcessLine (line);\n                }\n            });\n        }\n        onFinish ();\n    }\n\n    IsBinaryStlFile (fileContent)\n    {\n        let byteLength = fileContent.byteLength;\n        if (byteLength < 84) {\n            return false;\n        }\n\n        let reader = new BinaryReader (fileContent, true);\n        reader.Skip (80);\n\n        let triangleCount = reader.ReadUnsignedInteger32 ();\n        if (byteLength !== triangleCount * 50 + 84) {\n            return false;\n        }\n\n        return true;\n    }\n\n    ProcessLine (line)\n    {\n        if (line[0] === '#') {\n            return;\n        }\n\n        let parameters = ParametersFromLine (line, '#');\n        if (parameters.length === 0) {\n            return;\n        }\n\n        let keyword = parameters[0];\n        if (keyword === 'solid') {\n            if (parameters.length > 1) {\n                let name = NameFromLine (line, keyword.length, '#');\n                this.mesh.SetName (name);\n            }\n            return;\n        }\n\n        if (keyword === 'facet') {\n            this.triangle = new Triangle (-1, -1, -1);\n            if (parameters.length >= 5 && parameters[1] === 'normal') {\n                let normalVector = new Coord3D (\n                    parseFloat (parameters[2]),\n                    parseFloat (parameters[3]),\n                    parseFloat (parameters[4])\n                );\n                if (IsPositive (normalVector.Length ())) {\n                    let normalIndex = this.mesh.AddNormal (normalVector);\n                    this.triangle.SetNormals (\n                        normalIndex,\n                        normalIndex,\n                        normalIndex\n                    );\n                }\n            }\n            return;\n        }\n\n        if (keyword === 'vertex' && this.triangle !== null) {\n            if (parameters.length >= 4) {\n                let vertexIndex = this.mesh.AddVertex (new Coord3D (\n                    parseFloat (parameters[1]),\n                    parseFloat (parameters[2]),\n                    parseFloat (parameters[3])\n                ));\n                if (this.triangle.v0 === -1) {\n                    this.triangle.v0 = vertexIndex;\n                } else if (this.triangle.v1 === -1) {\n                    this.triangle.v1 = vertexIndex;\n                } else if (this.triangle.v2 === -1) {\n                    this.triangle.v2 = vertexIndex;\n                }\n            }\n            return;\n        }\n\n        if (keyword === 'endfacet' && this.triangle !== null) {\n            if (this.triangle.v0 !== -1 && this.triangle.v1 !== -1 && this.triangle.v2 !== null) {\n                this.mesh.AddTriangle (this.triangle);\n            }\n            this.triangle = null;\n            return;\n        }\n    }\n\n    ProcessBinary (fileContent)\n    {\n        function ReadVector (reader)\n        {\n            let coord = new Coord3D ();\n            coord.x = reader.ReadFloat32 ();\n            coord.y = reader.ReadFloat32 ();\n            coord.z = reader.ReadFloat32 ();\n            return coord;\n        }\n\n        function AddVertex (mesh, reader)\n        {\n            let coord = ReadVector (reader);\n            return mesh.AddVertex (coord);\n        }\n\n        let reader = new BinaryReader (fileContent, true);\n        reader.Skip (80);\n        let triangleCount = reader.ReadUnsignedInteger32 ();\n        for (let i = 0; i < triangleCount; i++) {\n            let normalVector = ReadVector (reader);\n            let v0 = AddVertex (this.mesh, reader);\n            let v1 = AddVertex (this.mesh, reader);\n            let v2 = AddVertex (this.mesh, reader);\n            reader.Skip (2);\n            let triangle = new Triangle (v0, v1, v2);\n            if (IsPositive (normalVector.Length ())) {\n                let normal = this.mesh.AddNormal (normalVector);\n                triangle.SetNormals (normal, normal, normal);\n            }\n            this.mesh.AddTriangle (triangle);\n        }\n    }\n}\n", "import { Coord3D } from '../geometry/coord3d.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { ArrayBufferToUtf8String } from '../io/bufferutils.js';\nimport { Node, NodeType } from '../model/node.js';\nimport { PhongMaterial } from '../model/material.js';\nimport { Color, IntegerToHexString } from '../model/color.js';\nimport { Mesh } from '../model/mesh.js';\nimport { Triangle } from '../model/triangle.js';\nimport { ImporterBase } from './importerbase.js';\nimport { Quaternion } from '../geometry/quaternion.js';\nimport { Matrix } from '../geometry/matrix.js';\nimport { Transformation } from '../geometry/transformation.js';\nimport { UpdateMaterialTransparency } from './importerutils.js';\nimport { Property, PropertyGroup, PropertyType } from '../model/property.js';\n\nexport class ImporterBim extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'bim';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Z;\n    }\n\n    ClearContent ()\n    {\n        this.meshIdToMesh = null;\n        this.colorToMaterialIndex = null;\n    }\n\n    ResetContent ()\n    {\n        this.meshIdToMesh = new Map ();\n        this.colorToMaterialIndex = new Map ();\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        let textContent = ArrayBufferToUtf8String (fileContent);\n        let bimJson = null;\n        try {\n            bimJson = JSON.parse (textContent);\n        } catch (err) {\n            this.SetError ('Failed to parse bim file.');\n            onFinish ();\n            return;\n        }\n\n        for (let bimMesh of bimJson.meshes) {\n            this.meshIdToMesh.set (bimMesh.mesh_id, bimMesh);\n        }\n\n        this.ImportProperties (bimJson, this.model);\n        for (let bimElement of bimJson.elements) {\n            let mesh = this.ImportElement (bimElement);\n            mesh.SetName (bimElement.type);\n            this.ImportProperties (bimElement, mesh);\n        }\n\n        onFinish ();\n    }\n\n    ImportElement (bimElement)\n    {\n        let materialIndex = null;\n        if (bimElement.color) {\n            let colorKey =\n                IntegerToHexString (bimElement.color.r) +\n                IntegerToHexString (bimElement.color.g) +\n                IntegerToHexString (bimElement.color.b) +\n                IntegerToHexString (bimElement.color.a);\n            if (this.colorToMaterialIndex.has (colorKey)) {\n                materialIndex = this.colorToMaterialIndex.get (colorKey);\n            } else {\n                let material = new PhongMaterial ();\n                material.name = colorKey;\n                material.color = new Color (bimElement.color.r, bimElement.color.g, bimElement.color.b);\n                if (bimElement.color.a < 255) {\n                    material.opacity = bimElement.color.a / 255.0;\n                    UpdateMaterialTransparency (material);\n                }\n                materialIndex = this.model.AddMaterial (material);\n                this.colorToMaterialIndex.set (colorKey, materialIndex);\n            }\n        }\n\n        let rootNode = this.model.GetRootNode ();\n\n        let bimMesh = this.meshIdToMesh.get (bimElement.mesh_id);\n        let mesh = this.ImportMesh (bimMesh, materialIndex);\n        let meshIndex = this.model.AddMesh (mesh);\n\n        let elementNode = new Node ();\n        elementNode.SetType (NodeType.MeshNode);\n        elementNode.AddMeshIndex (meshIndex);\n\n        let translation = new Coord3D (0.0, 0.0, 0.0);\n        if (bimElement.vector) {\n            translation = new Coord3D (\n                bimElement.vector.x,\n                bimElement.vector.y,\n                bimElement.vector.z\n            );\n        }\n        let rotation = new Quaternion (0.0, 0.0, 0.0, 1.0);\n        if (bimElement.rotation) {\n            rotation = new Quaternion (\n                bimElement.rotation.qx,\n                bimElement.rotation.qy,\n                bimElement.rotation.qz,\n                bimElement.rotation.qw\n            );\n        }\n        let scale = new Coord3D (1.0, 1.0, 1.0);\n        let matrix = new Matrix ().ComposeTRS (translation, rotation, scale);\n        elementNode.SetTransformation (new Transformation (matrix));\n\n        rootNode.AddChildNode (elementNode);\n        return mesh;\n    }\n\n    ImportMesh (bimMesh, materialIndex)\n    {\n        let mesh = new Mesh ();\n\n        for (let i = 0; i < bimMesh.coordinates.length; i += 3) {\n            mesh.AddVertex (new Coord3D (\n                bimMesh.coordinates[i + 0],\n                bimMesh.coordinates[i + 1],\n                bimMesh.coordinates[i + 2]\n            ));\n        }\n\n        for (let i = 0; i < bimMesh.indices.length; i += 3) {\n            let triangle = new Triangle (\n                bimMesh.indices[i + 0],\n                bimMesh.indices[i + 1],\n                bimMesh.indices[i + 2]\n            );\n            if (materialIndex !== null) {\n                triangle.SetMaterial (materialIndex);\n            }\n            mesh.AddTriangle (triangle);\n        }\n\n        return mesh;\n    }\n\n    ImportProperties (source, target)\n    {\n        function AddProperty (group, name, value)\n        {\n            if (value === undefined || value === null) {\n                return;\n            }\n            let property = new Property (PropertyType.Text, name, value);\n            group.AddProperty (property);\n        }\n\n        if (!source.info) {\n            return;\n        }\n\n        let info = source.info;\n        let propertyGroup = new PropertyGroup ('Info');\n        AddProperty (propertyGroup, 'Guid', source.guid);\n        AddProperty (propertyGroup, 'Type', source.type);\n        for (let propertyName in info) {\n            if (Object.prototype.hasOwnProperty.call (info, propertyName)) {\n                if (typeof info[propertyName] === 'string') {\n                    AddProperty (propertyGroup, propertyName, info[propertyName]);\n                }\n            }\n        }\n        target.AddPropertyGroup (propertyGroup);\n    }\n}\n", "import { WaitWhile } from '../core/taskrunner.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { Matrix } from '../geometry/matrix.js';\nimport { Transformation } from '../geometry/transformation.js';\nimport { Base64DataURIToArrayBuffer, CreateObjectUrl, GetFileExtensionFromMimeType } from '../io/bufferutils.js';\nimport { LoadExternalLibrary } from '../io/externallibs.js';\nimport { GetFileExtension, GetFileName } from '../io/fileutils.js';\nimport { PhongMaterial, TextureMap } from '../model/material.js';\nimport { Node, NodeType } from '../model/node.js';\nimport { ConvertThreeColorToColor, ConvertThreeGeometryToMesh } from '../threejs/threeutils.js';\nimport { ImporterBase } from './importerbase.js';\n\nexport class ImporterThreeBase extends ImporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    GetExternalLibraries ()\n    {\n        return null;\n    }\n\n    CreateLoader (manager)\n    {\n        return null;\n    }\n\n    GetMainObject (loadedObject)\n    {\n        return loadedObject;\n    }\n\n    IsMeshVisible (mesh)\n    {\n        return true;\n    }\n\n    ClearContent ()\n    {\n        this.loader = null;\n        this.materialIdToIndex = null;\n        this.objectUrlToFileName = null;\n    }\n\n    ResetContent ()\n    {\n        this.loader = null;\n        this.materialIdToIndex = new Map ();\n        this.objectUrlToFileName = new Map ();\n    }\n\n    ImportContent (fileContent, onFinish)\n    {\n        async function LoadLibraries (libraries, onFinish, onError)\n        {\n            try {\n                for (let i = 0; i < libraries.length; i++) {\n                    await LoadExternalLibrary (libraries[i]);\n                }\n            } catch (err) {\n                onError ();\n            }\n            onFinish ();\n        }\n\n        const libraries = this.GetExternalLibraries ();\n        if (libraries === null) {\n            onFinish ();\n            return;\n        }\n\n        LoadLibraries (libraries, () => {\n            this.LoadModel (fileContent, onFinish);\n        }, () => {\n            this.SetError ('Failed to load three.js loader.');\n            onFinish ();\n        });\n    }\n\n    LoadModel (fileContent, onFinish)\n    {\n        let isAllLoadersDone = false;\n        let loadingManager = new THREE.LoadingManager (() => {\n            isAllLoadersDone = true;\n        });\n\n        const mainFileUrl = CreateObjectUrl (fileContent);\n        loadingManager.setURLModifier ((url) => {\n            if (url === mainFileUrl) {\n                return url;\n            }\n            const name = GetFileName (url);\n            const extension = GetFileExtension (url);\n            if (extension.length > 0) {\n                const buffer = this.callbacks.getFileBuffer (url);\n                if (buffer !== null) {\n                    let objectUrl = CreateObjectUrl (buffer);\n                    this.objectUrlToFileName.set (objectUrl, name);\n                    return objectUrl;\n                }\n            }\n            return url;\n        });\n\n        const threeLoader = this.CreateLoader (loadingManager);\n        if (threeLoader === null) {\n            onFinish ();\n            return;\n        }\n\n        threeLoader.load (mainFileUrl,\n            (object) => {\n                WaitWhile (() => {\n                    if (isAllLoadersDone) {\n                        this.OnThreeObjectsLoaded (object, onFinish);\n                        return false;\n                    }\n                    return true;\n                });\n            },\n            () => {\n            },\n            (err) => {\n                this.SetError (err);\n                onFinish ();\n            }\n        );\n    }\n\n    OnThreeObjectsLoaded (loadedObject, onFinish)\n    {\n        function GetObjectTransformation (threeObject)\n        {\n            let matrix = new Matrix ().CreateIdentity ();\n            threeObject.updateMatrix ();\n            if (threeObject.matrix !== undefined && threeObject.matrix !== null) {\n                matrix.Set (threeObject.matrix.elements);\n            }\n            return new Transformation (matrix);\n        }\n\n        function AddObject (importer, model, threeObject, parentNode)\n        {\n            let node = new Node ();\n            if (threeObject.name !== undefined) {\n                node.SetName (threeObject.name);\n            }\n            node.SetTransformation (GetObjectTransformation (threeObject));\n            parentNode.AddChildNode (node);\n\n            for (let childObject of threeObject.children) {\n                AddObject (importer, model, childObject, node);\n            }\n            if (threeObject.isMesh && importer.IsMeshVisible (threeObject)) {\n                if (threeObject.children.length === 0) {\n                    node.SetType (NodeType.MeshNode);\n                }\n                let mesh = importer.ConvertThreeMesh (threeObject);\n                let meshIndex = model.AddMesh (mesh);\n                node.AddMeshIndex (meshIndex);\n            }\n        }\n\n        let mainObject = this.GetMainObject (loadedObject);\n        let rootNode = this.model.GetRootNode ();\n        rootNode.SetTransformation (GetObjectTransformation (mainObject));\n        for (let childObject of mainObject.children) {\n            AddObject (this, this.model, childObject, rootNode);\n        }\n\n        onFinish ();\n    }\n\n    ConvertThreeMesh (threeMesh)\n    {\n        let mesh = null;\n        if (Array.isArray (threeMesh.material)) {\n            mesh = ConvertThreeGeometryToMesh (threeMesh.geometry, null);\n            if (threeMesh.geometry.attributes.color === undefined || threeMesh.geometry.attributes.color === null) {\n                let materialIndices = [];\n                for (let i = 0; i < threeMesh.material.length; i++) {\n                    const material = threeMesh.material[i];\n                    const materialIndex = this.FindOrCreateMaterial (material);\n                    materialIndices.push (materialIndex);\n                }\n                for (let i = 0; i < threeMesh.geometry.groups.length; i++) {\n                    let group = threeMesh.geometry.groups[i];\n                    let groupEnd = null;\n                    if (group.count === Infinity) {\n                        groupEnd = mesh.TriangleCount ();\n                    } else {\n                        groupEnd = group.start / 3 + group.count / 3;\n                    }\n                    for (let j = group.start / 3; j < groupEnd; j++) {\n                        let triangle = mesh.GetTriangle (j);\n                        triangle.SetMaterial (materialIndices[group.materialIndex]);\n                    }\n                }\n            }\n        } else {\n            const materialIndex = this.FindOrCreateMaterial (threeMesh.material);\n            mesh = ConvertThreeGeometryToMesh (threeMesh.geometry, materialIndex);\n        }\n        if (threeMesh.name !== undefined && threeMesh.name !== null) {\n            mesh.SetName (threeMesh.name);\n        }\n        return mesh;\n    }\n\n    FindOrCreateMaterial (threeMaterial)\n    {\n        if (this.materialIdToIndex.has (threeMaterial.id)) {\n            return this.materialIdToIndex.get (threeMaterial.id);\n        }\n        let material = this.ConvertThreeMaterial (threeMaterial);\n        let materialIndex = this.model.AddMaterial (material);\n        this.materialIdToIndex.set (threeMaterial.id, materialIndex);\n        return materialIndex;\n    }\n\n    ConvertThreeMaterial (threeMaterial)\n    {\n        function CreateTexture (threeMap, objectUrlToFileName)\n        {\n            function GetDataUrl (img)\n            {\n                if (img.data !== undefined && img.data !== null) {\n                    let imageData = new ImageData (img.width, img.height);\n                    let imageSize = img.width * img.height * 4;\n                    for (let i = 0; i < imageSize; i++) {\n                        imageData.data[i] = img.data[i];\n                    }\n                    return THREE.ImageUtils.getDataURL (imageData);\n                } else {\n                    return THREE.ImageUtils.getDataURL (img);\n                }\n            }\n\n            if (threeMap === undefined || threeMap === null) {\n                return null;\n            }\n\n            if (threeMap.image === undefined || threeMap.image === null) {\n                return null;\n            }\n\n            try {\n                const dataUrl = GetDataUrl (threeMap.image);\n                const base64Buffer = Base64DataURIToArrayBuffer (dataUrl);\n                let texture = new TextureMap ();\n                let textureName = null;\n                if (objectUrlToFileName.has (threeMap.image.src)) {\n                    textureName = objectUrlToFileName.get (threeMap.image.src);\n                } else if (threeMap.name !== undefined && threeMap.name !== null) {\n                    textureName = threeMap.name + '.' + GetFileExtensionFromMimeType (base64Buffer.mimeType);\n                } else {\n                    textureName = 'Embedded_' + threeMap.id.toString () + '.' + GetFileExtensionFromMimeType (base64Buffer.mimeType);\n                }\n                texture.name = textureName;\n                texture.url = dataUrl;\n                texture.buffer = base64Buffer.buffer;\n                texture.rotation = threeMap.rotation;\n                texture.offset.x = threeMap.offset.x;\n                texture.offset.y = threeMap.offset.y;\n                texture.scale.x = threeMap.repeat.x;\n                texture.scale.y = threeMap.repeat.y;\n                return texture;\n            } catch (err) {\n                return null;\n            }\n        }\n\n        let material = new PhongMaterial ();\n        material.name = threeMaterial.name;\n        material.color = ConvertThreeColorToColor (threeMaterial.color);\n        material.opacity = threeMaterial.opacity;\n        material.transparent = threeMaterial.transparent;\n        material.alphaTest = threeMaterial.alphaTest;\n        if (threeMaterial.type === 'MeshPhongMaterial') {\n            material.specular = ConvertThreeColorToColor (threeMaterial.specular);\n            material.shininess = threeMaterial.shininess / 100.0;\n        }\n        material.diffuseMap = CreateTexture (threeMaterial.map, this.objectUrlToFileName);\n        material.normalMap = CreateTexture (threeMaterial.normalMap, this.objectUrlToFileName);\n        material.bumpMap = CreateTexture (threeMaterial.bumpMap, this.objectUrlToFileName);\n\n        return material;\n    }\n}\n\nexport class ImporterThreeFbx extends ImporterThreeBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'fbx';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n    GetExternalLibraries ()\n    {\n        return [\n            'loaders/fflate.min.js',\n            'three_loaders/TGALoader.js',\n            'three_loaders/FBXLoader.js'\n        ];\n    }\n\n    CreateLoader (manager)\n    {\n        manager.addHandler (/\\.tga$/i, new THREE.TGALoader (manager));\n        return new THREE.FBXLoader (manager);\n    }\n\n    GetMainObject (loadedObject)\n    {\n        return loadedObject;\n    }\n}\n\nexport class ImporterThreeDae extends ImporterThreeBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'dae';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n    GetExternalLibraries ()\n    {\n        return [\n            'three_loaders/TGALoader.js',\n            'three_loaders/ColladaLoader.js'\n        ];\n    }\n\n    CreateLoader (manager)\n    {\n        manager.addHandler (/\\.tga$/i, new THREE.TGALoader (manager));\n        return new THREE.ColladaLoader (manager);\n    }\n\n    GetMainObject (loadedObject)\n    {\n        return loadedObject.scene;\n    }\n}\n\nexport class ImporterThreeWrl extends ImporterThreeBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === 'wrl';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Y;\n    }\n\n    GetExternalLibraries ()\n    {\n        return [\n            'three_loaders/chevrotain.min.js',\n            'three_loaders/VRMLLoader.js'\n        ];\n    }\n\n    CreateLoader (manager)\n    {\n        return new THREE.VRMLLoader (manager);\n    }\n\n    GetMainObject (loadedObject)\n    {\n        return loadedObject;\n    }\n\n    IsMeshVisible (mesh)\n    {\n        let isVisible = true;\n        if (Array.isArray (mesh.material)) {\n            for (let i = 0; i < mesh.material.length; i++) {\n                if (mesh.material[i].side === THREE.BackSide) {\n                    isVisible = false;\n                    break;\n                }\n            }\n        } else {\n            isVisible = (mesh.material.side !== THREE.BackSide);\n        }\n        return isVisible;\n    }\n}\n\nexport class ImporterThree3mf extends ImporterThreeBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanImportExtension (extension)\n    {\n        return extension === '3mf';\n    }\n\n    GetUpDirection ()\n    {\n        return Direction.Z;\n    }\n\n    GetExternalLibraries ()\n    {\n        return [\n            'loaders/fflate.min.js',\n            'three_loaders/3MFLoader.js'\n        ];\n    }\n\n    CreateLoader (manager)\n    {\n        return new THREE.ThreeMFLoader (manager);\n    }\n\n    GetMainObject (loadedObject)\n    {\n        return loadedObject;\n    }\n}\n", "import { RunTaskAsync } from '../core/taskrunner.js';\nimport { CreateObjectUrl, RevokeObjectUrl } from '../io/bufferutils.js';\nimport { LoadExternalLibrary } from '../io/externallibs.js';\nimport { FileSource, GetFileName } from '../io/fileutils.js';\nimport { Color } from '../model/color.js';\nimport { File, FileList } from './filelist.js';\nimport { Importer3dm } from './importer3dm.js';\nimport { Importer3ds } from './importer3ds.js';\nimport { ImporterGltf } from './importergltf.js';\nimport { ImporterIfc } from './importerifc.js';\nimport { ImporterO3dv } from './importero3dv.js';\nimport { ImporterObj } from './importerobj.js';\nimport { ImporterOff } from './importeroff.js';\nimport { ImporterPly } from './importerply.js';\nimport { ImporterStp } from './importerstp.js';\nimport { ImporterStl } from './importerstl.js';\nimport { ImporterBim } from './importerbim.js';\nimport { ImporterThree3mf, ImporterThreeDae, ImporterThreeFbx, ImporterThreeWrl } from './importerthree.js';\n\nexport class ImportSettings\n{\n    constructor ()\n    {\n        this.defaultColor = new Color (200, 200, 200);\n    }\n}\n\nexport const ImportErrorCode =\n{\n    NoImportableFile : 1,\n    FailedToLoadFile : 2,\n    ImportFailed : 3,\n    UnknownError : 4\n};\n\nexport class ImportError\n{\n    constructor (code)\n    {\n        this.code = code;\n        this.mainFile = null;\n        this.message = null;\n    }\n}\n\nexport class ImportResult\n{\n    constructor ()\n    {\n        this.model = null;\n        this.mainFile = null;\n        this.upVector = null;\n        this.usedFiles = null;\n        this.missingFiles = null;\n    }\n}\n\nexport class ImporterFileAccessor\n{\n    constructor (getBufferCallback)\n    {\n        this.getBufferCallback = getBufferCallback;\n        this.fileBuffers = new Map ();\n        this.textureBuffers = new Map ();\n    }\n\n    GetFileBuffer (filePath)\n    {\n        let fileName = GetFileName (filePath);\n        if (this.fileBuffers.has (fileName)) {\n            return this.fileBuffers.get (fileName);\n        }\n        let buffer = this.getBufferCallback (fileName);\n        this.fileBuffers.set (fileName, buffer);\n        return buffer;\n    }\n\n    GetTextureBuffer (filePath)\n    {\n        let fileName = GetFileName (filePath);\n        if (this.textureBuffers.has (fileName)) {\n            return this.textureBuffers.get (fileName);\n        }\n        let buffer = null;\n        let textureBuffer = this.getBufferCallback (fileName);\n        if (textureBuffer !== null) {\n            buffer = {\n                url : CreateObjectUrl (textureBuffer),\n                buffer : textureBuffer\n            };\n        }\n        this.textureBuffers.set (fileName, buffer);\n        return buffer;\n    }\n}\n\nexport class Importer\n{\n    constructor ()\n    {\n        this.importers = [\n            new ImporterObj (),\n            new ImporterStl (),\n            new ImporterOff (),\n            new ImporterPly (),\n            new Importer3ds (),\n            new ImporterGltf (),\n            new ImporterO3dv (),\n            new ImporterBim (),\n            new Importer3dm (),\n            new ImporterIfc (),\n            new ImporterStp (),\n            new ImporterThreeFbx (),\n            new ImporterThreeDae (),\n            new ImporterThreeWrl (),\n            new ImporterThree3mf ()\n        ];\n        this.fileList = new FileList ();\n        this.model = null;\n        this.usedFiles = [];\n        this.missingFiles = [];\n    }\n\n\tAddImporter (importer)\n\t{\n\t\tthis.importers.push (importer);\n\t}\n\n    ImportFiles (fileList, fileSource, settings, callbacks)\n    {\n        this.LoadFiles (fileList, fileSource, () => {\n            callbacks.onFilesLoaded ();\n            RunTaskAsync (() => {\n                this.ImportLoadedFiles (settings, callbacks);\n            });\n        });\n    }\n\n    LoadFiles (fileList, fileSource, onReady)\n    {\n        let newFileList = new FileList ();\n        if (fileSource === FileSource.Url) {\n            newFileList.FillFromFileUrls (fileList);\n        } else if (fileSource === FileSource.File) {\n            newFileList.FillFromFileObjects (fileList);\n        }\n        let reset = false;\n        if (this.HasImportableFile (newFileList)) {\n            reset = true;\n        } else {\n            let foundMissingFile = false;\n            for (let i = 0; i < this.missingFiles.length; i++) {\n                let missingFile = this.missingFiles[i];\n                if (newFileList.ContainsFileByPath (missingFile)) {\n                    foundMissingFile = true;\n                }\n            }\n            if (!foundMissingFile) {\n                reset = true;\n            } else {\n                let newFiles = newFileList.GetFiles ();\n                this.fileList.ExtendFromFileList (newFiles);\n                reset = false;\n            }\n        }\n        if (reset) {\n            this.fileList = newFileList;\n        }\n        this.fileList.GetContent (() => {\n            this.DecompressArchives (this.fileList, () => {\n                onReady ();\n            });\n        });\n    }\n\n    ImportLoadedFiles (settings, callbacks)\n    {\n        let importableFiles = this.GetImportableFiles (this.fileList);\n        if (importableFiles.length === 0) {\n            callbacks.onImportError (new ImportError (ImportErrorCode.NoImportableFile));\n            return;\n        }\n\n        if (importableFiles.length === 1 || !callbacks.onSelectMainFile) {\n            let mainFile = importableFiles[0];\n            this.ImportLoadedMainFile (mainFile, settings, callbacks);\n        } else {\n            let fileNames = importableFiles.map (importableFile => importableFile.file.name);\n            callbacks.onSelectMainFile (fileNames, (mainFileIndex) => {\n                if (mainFileIndex === null) {\n                    callbacks.onImportError (new ImportError (ImportErrorCode.NoImportableFile));\n                    return;\n                }\n                RunTaskAsync (() => {\n                    let mainFile = importableFiles[mainFileIndex];\n                    this.ImportLoadedMainFile (mainFile, settings, callbacks);\n                });\n            });\n        }\n    }\n\n    ImportLoadedMainFile (mainFile, settings, callbacks)\n    {\n        if (mainFile === null || mainFile.file === null || mainFile.file.content === null) {\n            let error = new ImportError (ImportErrorCode.FailedToLoadFile);\n            if (mainFile !== null && mainFile.file !== null) {\n                error.mainFile = mainFile.file.name;\n            }\n            callbacks.onImportError (error);\n            return;\n        }\n\n        this.RevokeModelUrls ();\n        this.model = null;\n        this.usedFiles = [];\n        this.missingFiles = [];\n        this.usedFiles.push (mainFile.file.name);\n\n        let importer = mainFile.importer;\n        let fileAccessor = new ImporterFileAccessor ((fileName) => {\n            let fileBuffer = null;\n            let file = this.fileList.FindFileByPath (fileName);\n            if (file === null || file.content === null) {\n                this.missingFiles.push (fileName);\n                fileBuffer = null;\n            } else {\n                this.usedFiles.push (fileName);\n                fileBuffer = file.content;\n            }\n            return fileBuffer;\n        });\n\n        importer.Import (mainFile.file.name, mainFile.file.extension, mainFile.file.content, {\n            getDefaultMaterialColor : () => {\n                return settings.defaultColor;\n            },\n            getFileBuffer : (filePath) => {\n                return fileAccessor.GetFileBuffer (filePath);\n            },\n            getTextureBuffer : (filePath) => {\n                return fileAccessor.GetTextureBuffer (filePath);\n            },\n            onSuccess : () => {\n                this.model = importer.GetModel ();\n                let result = new ImportResult ();\n                result.mainFile = mainFile.file.name;\n                result.model = this.model;\n                result.usedFiles = this.usedFiles;\n                result.missingFiles = this.missingFiles;\n                result.upVector = importer.GetUpDirection ();\n                callbacks.onImportSuccess (result);\n            },\n            onError : () => {\n                let error = new ImportError (ImportErrorCode.ImportFailed);\n                error.mainFile = mainFile.file.name;\n                error.message = importer.GetErrorMessage ();\n                callbacks.onImportError (error);\n            },\n            onComplete : () => {\n                importer.Clear ();\n            }\n        });\n    }\n\n    DecompressArchives (fileList, onReady)\n    {\n        let files = fileList.GetFiles ();\n        let archives = [];\n        for (let file of files) {\n            if (file.extension === 'zip') {\n                archives.push (file);\n            }\n        }\n        if (archives.length === 0) {\n            onReady ();\n            return;\n        }\n        LoadExternalLibrary ('loaders/fflate.min.js').then (() => {\n            for (let i = 0; i < archives.length; i++) {\n                const archiveFile = archives[i];\n                const archiveBuffer = new Uint8Array (archiveFile.content);\n                const decompressed = fflate.unzipSync (archiveBuffer);\n                for (const fileName in decompressed) {\n                    if (Object.prototype.hasOwnProperty.call (decompressed, fileName)) {\n                        let file = new File (fileName, FileSource.Decompressed);\n                        file.SetContent (decompressed[fileName].buffer);\n                        fileList.AddFile (file);\n                    }\n                }\n            }\n            onReady ();\n        }).catch (() => {\n            onReady ();\n        });\n    }\n\n    GetFileList ()\n    {\n        return this.fileList;\n    }\n\n    HasImportableFile (fileList)\n    {\n        let importableFiles = this.GetImportableFiles (fileList);\n        return importableFiles.length > 0;\n    }\n\n    GetImportableFiles (fileList)\n    {\n        function FindImporter (file, importers)\n        {\n            for (let importerIndex = 0; importerIndex < importers.length; importerIndex++) {\n                let importer = importers[importerIndex];\n                if (importer.CanImportExtension (file.extension)) {\n                    return importer;\n                }\n            }\n            return null;\n        }\n\n        let importableFiles = [];\n        let files = fileList.GetFiles ();\n        for (let fileIndex = 0; fileIndex < files.length; fileIndex++) {\n            let file = files[fileIndex];\n            let importer = FindImporter (file, this.importers);\n            if (importer !== null) {\n                importableFiles.push ({\n                    file : file,\n                    importer : importer\n                });\n            }\n        }\n        return importableFiles;\n    }\n\n    RevokeModelUrls ()\n    {\n        if (this.model === null) {\n            return;\n        }\n        for (let i = 0; i < this.model.MaterialCount (); i++) {\n            let material = this.model.GetMaterial (i);\n            material.EnumerateTextureMaps ((texture) => {\n                if (texture.url !== null) {\n                    RevokeObjectUrl (texture.url);\n                }\n            });\n        }\n    }\n}\n", "import { CoordDistance3D, SubCoord3D } from './coord3d.js';\n\nexport function BezierTweenFunction (distance, index, count)\n{\n    let t = index / count;\n\treturn distance * (t * t * (3.0 - 2.0 * t));\n}\n\nexport function LinearTweenFunction (distance, index, count)\n{\n    return index * distance / count;\n}\n\nexport function ParabolicTweenFunction (distance, index, count)\n{\n    let t = index / count;\n    let t2 = t * t;\n    return distance * (t2 / (2.0 * (t2 - t) + 1.0));\n}\n\nexport function TweenCoord3D (a, b, count, tweenFunc)\n{\n\tlet dir = SubCoord3D (b, a).Normalize ();\n\tlet distance = CoordDistance3D (a, b);\n\tlet result = [];\n\tfor (let i = 0; i < count; i++) {\n        let step = tweenFunc (distance, i, count - 1);\n\t\tresult.push (a.Clone ().Offset (dir, step));\n\t}\n\treturn result;\n}\n", "import { Coord2D, CoordDistance2D, SubCoord2D } from '../geometry/coord2d.js';\nimport { CoordDistance3D, CrossVector3D, SubCoord3D, VectorAngle3D } from '../geometry/coord3d.js';\nimport { DegRad, IsGreater, IsLower, IsZero } from '../geometry/geometry.js';\nimport { ParabolicTweenFunction, TweenCoord3D } from '../geometry/tween.js';\nimport { CameraIsEqual3D } from './camera.js';\nimport { GetDomElementClientCoordinates } from './domutils.js';\n\nexport class MouseInteraction\n{\n    constructor ()\n    {\n        this.prev = new Coord2D (0.0, 0.0);\n        this.curr = new Coord2D (0.0, 0.0);\n        this.diff = new Coord2D (0.0, 0.0);\n        this.buttons = [];\n    }\n\n    Down (canvas, ev)\n    {\n        this.buttons.push (ev.which);\n        this.curr = this.GetPositionFromEvent (canvas, ev);\n        this.prev = this.curr.Clone ();\n    }\n\n    Move (canvas, ev)\n    {\n        this.curr = this.GetPositionFromEvent (canvas, ev);\n\t\tthis.diff = SubCoord2D (this.curr, this.prev);\n\t\tthis.prev = this.curr.Clone ();\n\t}\n\n\tUp (canvas, ev)\n\t{\n\t\tlet buttonIndex = this.buttons.indexOf (ev.which);\n\t\tif (buttonIndex !== -1) {\n\t\t\tthis.buttons.splice (buttonIndex, 1);\n\t\t}\n\t\tthis.curr = this.GetPositionFromEvent (canvas, ev);\n\t}\n\n\tLeave (canvas, ev)\n\t{\n\t\tthis.buttons = [];\n\t\tthis.curr = this.GetPositionFromEvent (canvas, ev);\n\t}\n\n\tIsButtonDown ()\n\t{\n\t\treturn this.buttons.length > 0;\n\t}\n\n\tGetButton ()\n\t{\n\t\tlet length = this.buttons.length;\n\t\tif (length === 0) {\n\t\t\treturn 0;\n\t\t}\n\t\treturn this.buttons[length - 1];\n\t}\n\n\tGetPosition ()\n\t{\n\t\treturn this.curr;\n\t}\n\n\tGetMoveDiff ()\n\t{\n\t\treturn this.diff;\n\t}\n\n\tGetPositionFromEvent (canvas, ev)\n\t{\n\t\treturn GetDomElementClientCoordinates (canvas, ev.clientX, ev.clientY);\n\t}\n}\n\nexport class TouchInteraction\n{\n\tconstructor ()\n\t{\n\t\tthis.prevPos = new Coord2D (0.0, 0.0);\n\t\tthis.currPos = new Coord2D (0.0, 0.0);\n\t\tthis.diffPos = new Coord2D (0.0, 0.0);\n\t\tthis.prevDist = 0.0;\n\t\tthis.currDist = 0.0;\n\t\tthis.diffDist = 0.0;\n\t\tthis.fingers = 0;\n\t}\n\n\tStart (canvas, ev)\n\t{\n\t\tif (ev.touches.length === 0) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.fingers = ev.touches.length;\n\n\t\tthis.currPos = this.GetPositionFromEvent (canvas, ev);\n\t\tthis.prevPos = this.currPos.Clone ();\n\n\t\tthis.currDist = this.GetTouchDistanceFromEvent (canvas, ev);\n\t\tthis.prevDist = this.currDist;\n\t}\n\n\tMove (canvas, ev)\n\t{\n\t\tif (ev.touches.length === 0) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.currPos = this.GetPositionFromEvent (canvas, ev);\n\t\tthis.diffPos = SubCoord2D (this.currPos, this.prevPos);\n\t\tthis.prevPos = this.currPos.Clone ();\n\n\t\tthis.currDist = this.GetTouchDistanceFromEvent (canvas, ev);\n\t\tthis.diffDist = this.currDist - this.prevDist;\n\t\tthis.prevDist = this.currDist;\n\t}\n\n\tEnd (canvas, ev)\n\t{\n\t\tif (ev.touches.length === 0) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis.fingers = 0;\n\t\tthis.currPos = this.GetPositionFromEvent (canvas, ev);\n\t\tthis.currDist = this.GetTouchDistanceFromEvent (canvas, ev);\n\t}\n\n\tIsFingerDown ()\n\t{\n\t\treturn this.fingers !== 0;\n\t}\n\n\tGetFingerCount ()\n\t{\n\t\treturn this.fingers;\n\t}\n\n\tGetPosition ()\n\t{\n\t\treturn this.currPos;\n\t}\n\n\tGetMoveDiff ()\n\t{\n\t\treturn this.diffPos;\n\t}\n\n\tGetDistanceDiff ()\n\t{\n\t\treturn this.diffDist;\n\t}\n\n\tGetPositionFromEvent (canvas, ev)\n\t{\n\t\tlet coord = null;\n\t\tif (ev.touches.length !== 0) {\n\t\t\tlet touchEv = ev.touches[0];\n\t\t\tcoord = GetDomElementClientCoordinates (canvas, touchEv.pageX, touchEv.pageY);\n\t\t}\n\t\treturn coord;\n\t}\n\n\tGetTouchDistanceFromEvent (canvas, ev)\n\t{\n\t\tif (ev.touches.length !== 2) {\n\t\t\treturn 0.0;\n\t\t}\n\t\tlet touchEv1 = ev.touches[0];\n\t\tlet touchEv2 = ev.touches[1];\n\t\tlet distance = CoordDistance2D (\n\t\t\tGetDomElementClientCoordinates (canvas, touchEv1.pageX, touchEv1.pageY),\n\t\t\tGetDomElementClientCoordinates (canvas, touchEv2.pageX, touchEv2.pageY)\n\t\t);\n\t\treturn distance;\n\t}\n}\n\nexport class ClickDetector\n{\n\tconstructor ()\n\t{\n\t\tthis.isClick = false;\n\t\tthis.startPosition = null;\n\t}\n\n\tStart (startPosition)\n\t{\n\t\tthis.isClick = true;\n\t\tthis.startPosition = startPosition;\n\t}\n\n\tMove (currentPosition)\n\t{\n\t\tif (!this.isClick) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (this.startPosition !== null) {\n\t\t\tconst maxClickDistance = 3.0;\n\t\t\tconst currentDistance = CoordDistance2D (this.startPosition, currentPosition);\n\t\t\tif (currentDistance > maxClickDistance) {\n\t\t\t\tthis.Cancel ();\n\t\t\t}\n\t\t} else {\n\t\t\tthis.Cancel ();\n\t\t}\n\t}\n\n\tEnd ()\n\t{\n\t\tthis.startPosition = null;\n\t}\n\n\tCancel ()\n\t{\n\t\tthis.isClick = false;\n\t\tthis.startPosition = null;\n\t}\n\n\tIsClick ()\n\t{\n\t\treturn this.isClick;\n\t}\n}\n\nexport const NavigationType =\n{\n\tNone : 0,\n\tOrbit : 1,\n\tPan : 2,\n\tZoom : 3\n};\n\nexport class Navigation\n{\n\tconstructor (canvas, camera, callbacks)\n\t{\n\t\tthis.canvas = canvas;\n\t\tthis.camera = camera;\n\t\tthis.callbacks = callbacks;\n\t\tthis.fixUpVector = true;\n\n\t\tthis.mouse = new MouseInteraction ();\n\t\tthis.touch = new TouchInteraction ();\n\t\tthis.clickDetector = new ClickDetector ();\n\n\t\tthis.onMouseClick = null;\n\t\tthis.onMouseMove = null;\n\t\tthis.onContext = null;\n\n\t\tif (this.canvas.addEventListener) {\n\t\t\tthis.canvas.addEventListener ('mousedown', this.OnMouseDown.bind (this));\n\t\t\tthis.canvas.addEventListener ('wheel', this.OnMouseWheel.bind (this));\n\t\t\tthis.canvas.addEventListener ('touchstart', this.OnTouchStart.bind (this));\n\t\t\tthis.canvas.addEventListener ('touchmove', this.OnTouchMove.bind (this));\n\t\t\tthis.canvas.addEventListener ('touchcancel', this.OnTouchEnd.bind (this));\n\t\t\tthis.canvas.addEventListener ('touchend', this.OnTouchEnd.bind (this));\n\t\t\tthis.canvas.addEventListener ('contextmenu', this.OnContextMenu.bind (this));\n\t\t}\n\t\tif (document.addEventListener) {\n\t\t\tdocument.addEventListener ('mousemove', this.OnMouseMove.bind (this));\n\t\t\tdocument.addEventListener ('mouseup', this.OnMouseUp.bind (this));\n\t\t\tdocument.addEventListener ('mouseleave', this.OnMouseLeave.bind (this));\n\t\t}\n\t}\n\n\tSetMouseClickHandler (onMouseClick)\n\t{\n\t\tthis.onMouseClick = onMouseClick;\n\t}\n\n\tSetMouseMoveHandler (onMouseMove)\n\t{\n\t\tthis.onMouseMove = onMouseMove;\n\t}\n\n\tSetContextMenuHandler (onContext)\n\t{\n\t\tthis.onContext = onContext;\n\t}\n\n\tIsFixUpVector ()\n\t{\n\t\treturn this.fixUpVector;\n\t}\n\n\tSetFixUpVector (fixUpVector)\n\t{\n\t\tthis.fixUpVector = fixUpVector;\n\t}\n\n\tGetCamera ()\n\t{\n\t\treturn this.camera;\n\t}\n\n\tSetCamera (camera)\n\t{\n\t\tthis.camera = camera;\n\t}\n\n\tMoveCamera (newCamera, stepCount)\n\t{\n\t\tfunction Step (obj, steps, count, index)\n\t\t{\n\t\t\tobj.camera.eye = steps.eye[index];\n\t\t\tobj.camera.center = steps.center[index];\n\t\t\tobj.camera.up = steps.up[index];\n\t\t\tobj.Update ();\n\n\t\t\tif (index < count - 1) {\n\t\t\t\trequestAnimationFrame (() => {\n\t\t\t\t\tStep (obj, steps, count, index + 1);\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\n\t\tif (newCamera === null) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (stepCount === 0 || CameraIsEqual3D (this.camera, newCamera)) {\n\t\t\tthis.camera = newCamera;\n\t\t} else {\n\t\t\tlet tweenFunc = ParabolicTweenFunction;\n\t\t\tlet steps = {\n\t\t\t\teye : TweenCoord3D (this.camera.eye, newCamera.eye, stepCount, tweenFunc),\n\t\t\t\tcenter : TweenCoord3D (this.camera.center, newCamera.center, stepCount, tweenFunc),\n\t\t\t\tup : TweenCoord3D (this.camera.up, newCamera.up, stepCount, tweenFunc)\n\t\t\t};\n\t\t\trequestAnimationFrame (() => {\n\t\t\t\tStep (this, steps, stepCount, 0);\n\t\t\t});\n\t\t}\n\n\t\tthis.Update ();\n\t}\n\n\tGetFitToSphereCamera (center, radius, fov)\n\t{\n\t\tif (IsZero (radius)) {\n\t\t\treturn null;\n\t\t}\n\n\t\tlet fitCamera = this.camera.Clone ();\n\n\t\tlet offsetToOrigo = SubCoord3D (fitCamera.center, center);\n\t\tfitCamera.eye = SubCoord3D (fitCamera.eye, offsetToOrigo);\n\t\tfitCamera.center = center.Clone ();\n\n\t\tlet centerEyeDirection = SubCoord3D (fitCamera.eye, fitCamera.center).Normalize ();\n\t\tlet fieldOfView = fov / 2.0;\n\t\tif (this.canvas.width < this.canvas.height) {\n\t\t\tfieldOfView = fieldOfView * this.canvas.width / this.canvas.height;\n\t\t}\n\t\tlet distance = radius / Math.sin (fieldOfView * DegRad);\n\n\t\tfitCamera.eye = fitCamera.center.Clone ().Offset (centerEyeDirection, distance);\n\n\t\treturn fitCamera;\n\t}\n\n\tOnMouseDown (ev)\n\t{\n\t\tev.preventDefault ();\n\n\t\tthis.mouse.Down (this.canvas, ev);\n\t\tthis.clickDetector.Start (this.mouse.GetPosition ());\n\t}\n\n\tOnMouseMove (ev)\n\t{\n\t\tthis.mouse.Move (this.canvas, ev);\n\t\tthis.clickDetector.Move (this.mouse.GetPosition ());\n\t\tif (this.onMouseMove) {\n\t\t\tlet mouseCoords = GetDomElementClientCoordinates (this.canvas, ev.clientX, ev.clientY);\n\t\t\tthis.onMouseMove (mouseCoords);\n\t\t}\n\n\t\tif (!this.mouse.IsButtonDown ()) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet moveDiff = this.mouse.GetMoveDiff ();\n\t\tlet mouseButton = this.mouse.GetButton ();\n\n\t\tlet navigationType = NavigationType.None;\n\t\tif (mouseButton === 1) {\n\t\t\tif (ev.ctrlKey) {\n\t\t\t\tnavigationType = NavigationType.Zoom;\n\t\t\t} else if (ev.shiftKey) {\n\t\t\t\tnavigationType = NavigationType.Pan;\n\t\t\t} else {\n\t\t\t\tnavigationType = NavigationType.Orbit;\n\t\t\t}\n\t\t} else if (mouseButton === 2 || mouseButton === 3) {\n\t\t\tnavigationType = NavigationType.Pan;\n\t\t}\n\n\t\tif (navigationType === NavigationType.Orbit) {\n\t\t\tlet orbitRatio = 0.5;\n\t\t\tthis.Orbit (moveDiff.x * orbitRatio, moveDiff.y * orbitRatio);\n\t\t} else if (navigationType === NavigationType.Pan) {\n\t\t\tlet eyeCenterDistance = CoordDistance3D (this.camera.eye, this.camera.center);\n\t\t\tlet panRatio = 0.001 * eyeCenterDistance;\n\t\t\tthis.Pan (moveDiff.x * panRatio, moveDiff.y * panRatio);\n\t\t} else if (navigationType === NavigationType.Zoom) {\n\t\t\tlet zoomRatio = 0.005;\n\t\t\tthis.Zoom (-moveDiff.y * zoomRatio);\n\t\t}\n\n\t\tthis.Update ();\n\t}\n\n\tOnMouseUp (ev)\n\t{\n\t\tthis.mouse.Up (this.canvas, ev);\n\t\tthis.clickDetector.End ();\n\n\t\tif (this.clickDetector.IsClick ()) {\n\t\t\tlet mouseCoords = this.mouse.GetPosition ();\n\t\t\tthis.Click (ev.which, mouseCoords);\n\t\t}\n\t}\n\n\tOnMouseLeave (ev)\n\t{\n\t\tthis.mouse.Leave (this.canvas, ev);\n\t\tthis.clickDetector.Cancel ();\n\t}\n\n\tOnTouchStart (ev)\n\t{\n\t\tev.preventDefault ();\n\n\t\tthis.touch.Start (this.canvas, ev);\n\t\tthis.clickDetector.Start (this.touch.GetPosition ());\n\t}\n\n\tOnTouchMove (ev)\n\t{\n\t\tev.preventDefault ();\n\n\t\tthis.touch.Move (this.canvas, ev);\n\t\tthis.clickDetector.Move (this.touch.GetPosition ());\n\t\tif (!this.touch.IsFingerDown ()) {\n\t\t\treturn;\n\t\t}\n\n\t\tlet moveDiff = this.touch.GetMoveDiff ();\n\t\tlet distanceDiff = this.touch.GetDistanceDiff ();\n\t\tlet fingerCount = this.touch.GetFingerCount ();\n\n\t\tlet navigationType = NavigationType.None;\n\t\tif (fingerCount === 1) {\n\t\t\tnavigationType = NavigationType.Orbit;\n\t\t} else if (fingerCount === 2) {\n\t\t\tnavigationType = NavigationType.Pan;\n\t\t}\n\n\t\tif (navigationType === NavigationType.Orbit) {\n\t\t\tlet orbitRatio = 0.5;\n\t\t\tthis.Orbit (moveDiff.x * orbitRatio, moveDiff.y * orbitRatio);\n\t\t} else if (navigationType === NavigationType.Pan) {\n\t\t\tlet zoomRatio = 0.005;\n\t\t\tthis.Zoom (distanceDiff * zoomRatio);\n\t\t\tlet panRatio = 0.001 * CoordDistance3D (this.camera.eye, this.camera.center);\n\t\t\tthis.Pan (moveDiff.x * panRatio, moveDiff.y * panRatio);\n\t\t}\n\n\t\tthis.Update ();\n\t}\n\n\tOnTouchEnd (ev)\n\t{\n\t\tev.preventDefault ();\n\n\t\tthis.touch.End (this.canvas, ev);\n\t\tthis.clickDetector.End ();\n\n\t\tif (this.clickDetector.IsClick ()) {\n\t\t\tlet touchCoords = this.touch.GetPosition ();\n\t\t\tif (this.touch.GetFingerCount () === 1) {\n\t\t\t\tthis.Click (1, touchCoords);\n\t\t\t}\n\t\t}\n\t}\n\n\tOnMouseWheel (ev)\n\t{\n\t\tlet params = ev || window.event;\n\t\tparams.preventDefault ();\n\n\t\tlet delta = -params.deltaY / 40;\n\t\tlet ratio = 0.1;\n\t\tif (delta < 0) {\n\t\t\tratio = ratio * -1.0;\n\t\t}\n\n\t\tthis.Zoom (ratio);\n\t\tthis.Update ();\n\t}\n\n\tOnContextMenu (ev)\n\t{\n\t\tev.preventDefault ();\n\n\t\tif (this.clickDetector.IsClick ()) {\n\t\t\tthis.Context (ev.clientX, ev.clientY);\n\t\t\tthis.clickDetector.Cancel ();\n\t\t}\n\t}\n\n\tOrbit (angleX, angleY)\n\t{\n\t\tlet radAngleX = angleX * DegRad;\n\t\tlet radAngleY = angleY * DegRad;\n\n\t\tlet viewDirection = SubCoord3D (this.camera.center, this.camera.eye).Normalize ();\n\t\tlet horizontalDirection = CrossVector3D (viewDirection, this.camera.up).Normalize ();\n\n\t\tif (this.fixUpVector) {\n\t\t\tlet originalAngle = VectorAngle3D (viewDirection, this.camera.up);\n\t\t\tlet newAngle = originalAngle + radAngleY;\n\t\t\tif (IsGreater (newAngle, 0.0) && IsLower (newAngle, Math.PI)) {\n\t\t\t\tthis.camera.eye.Rotate (horizontalDirection, -radAngleY, this.camera.center);\n\t\t\t}\n\t\t\tthis.camera.eye.Rotate (this.camera.up, -radAngleX, this.camera.center);\n\t\t} else {\n\t\t\tlet verticalDirection = CrossVector3D (horizontalDirection, viewDirection).Normalize ();\n\t\t\tthis.camera.eye.Rotate (horizontalDirection, -radAngleY, this.camera.center);\n\t\t\tthis.camera.eye.Rotate (verticalDirection, -radAngleX, this.camera.center);\n\t\t\tthis.camera.up = verticalDirection;\n\t\t}\n\t}\n\n\tPan (moveX, moveY)\n\t{\n\t\tlet viewDirection = SubCoord3D (this.camera.center, this.camera.eye).Normalize ();\n\t\tlet horizontalDirection = CrossVector3D (viewDirection, this.camera.up).Normalize ();\n\t\tlet verticalDirection = CrossVector3D (horizontalDirection, viewDirection).Normalize ();\n\n\t\tthis.camera.eye.Offset (horizontalDirection, -moveX);\n\t\tthis.camera.center.Offset (horizontalDirection, -moveX);\n\n\t\tthis.camera.eye.Offset (verticalDirection, moveY);\n\t\tthis.camera.center.Offset (verticalDirection, moveY);\n\t}\n\n\tZoom (ratio)\n\t{\n\t\tlet direction = SubCoord3D (this.camera.center, this.camera.eye);\n\t\tlet distance = direction.Length ();\n\t\tlet move = distance * ratio;\n\t\tthis.camera.eye.Offset (direction, move);\n\t}\n\n\tUpdate ()\n\t{\n\t\tthis.callbacks.onUpdate ();\n\t}\n\n\tClick (button, mouseCoords)\n\t{\n\t\tif (this.onMouseClick) {\n\t\t\tthis.onMouseClick (button, mouseCoords);\n\t\t}\n\t}\n\n\tContext (clientX, clientY)\n\t{\n\t\tif (this.onContext) {\n\t\t\tlet globalCoords = {\n\t\t\t\tx : clientX,\n\t\t\t\ty : clientY\n\t\t\t};\n\t\t\tlet localCoords = GetDomElementClientCoordinates (this.canvas, clientX, clientY);\n\t\t\tthis.onContext (globalCoords, localCoords);\n\t\t}\n\t}\n}\n", "import { Color } from '../model/color.js';\nimport { ConvertColorToThreeColor } from '../threejs/threeutils.js';\n\nexport function SetThreeMeshPolygonOffset (mesh, offset)\n{\n    function SetMaterialsPolygonOffset (materials, offset)\n    {\n        for (let material of materials) {\n            material.polygonOffset = offset;\n            material.polygonOffsetUnit = 1;\n            material.polygonOffsetFactor = 1;\n        }\n    }\n\n    SetMaterialsPolygonOffset (mesh.material, offset);\n    if (mesh.userData.threeMaterials) {\n        SetMaterialsPolygonOffset (mesh.userData.threeMaterials, offset);\n    }\n}\n\nexport class ViewerGeometry\n{\n    constructor (scene)\n    {\n        this.scene = scene;\n\n        this.mainObject = null;\n        this.mainEdgeObject = null;\n\n        this.edgeSettings = {\n            showEdges : false,\n            edgeColor : new Color (0, 0, 0),\n            edgeThreshold : 1\n        };\n    }\n\n    SetMainObject (mainObject)\n    {\n        this.mainObject = mainObject;\n        this.scene.add (this.mainObject);\n        if (this.edgeSettings.showEdges) {\n            this.GenerateMainEdgeObject ();\n        }\n    }\n\n    UpdateWorldMatrix ()\n    {\n        if (this.mainObject !== null) {\n            this.mainObject.updateWorldMatrix (true, true);\n        }\n    }\n\n    SetEdgeSettings (show, color, threshold)\n    {\n        let needToGenerate = false;\n        if (show && (!this.edgeSettings.showEdges || this.edgeSettings.edgeThreshold !== threshold)) {\n            needToGenerate = true;\n        }\n\n        this.edgeSettings.showEdges = show;\n        this.edgeSettings.edgeThreshold = threshold;\n        this.edgeSettings.edgeColor = color;\n\n        if (this.mainObject === null) {\n            return;\n        }\n\n        if (this.edgeSettings.showEdges) {\n            if (needToGenerate) {\n                this.ClearMainEdgeObject ();\n                this.GenerateMainEdgeObject ();\n            } else {\n\n                let edgeColor = ConvertColorToThreeColor (this.edgeSettings.edgeColor);\n                this.EnumerateEdges ((edge) => {\n                    edge.material.color = edgeColor;\n                });\n            }\n        } else {\n            this.ClearMainEdgeObject ();\n        }\n    }\n\n    GenerateMainEdgeObject ()\n    {\n        let edgeColor = ConvertColorToThreeColor (this.edgeSettings.edgeColor);\n        this.mainEdgeObject = new THREE.Object3D ();\n\n        this.UpdateWorldMatrix ();\n        this.EnumerateMeshes ((mesh) => {\n            SetThreeMeshPolygonOffset (mesh, true);\n            let edges = new THREE.EdgesGeometry (mesh.geometry, this.edgeSettings.edgeThreshold);\n            let line = new THREE.LineSegments (edges, new THREE.LineBasicMaterial ({\n                color: edgeColor\n            }));\n            line.applyMatrix4 (mesh.matrixWorld);\n            line.userData = mesh.userData;\n            line.visible = mesh.visible;\n            this.mainEdgeObject.add (line);\n        });\n        this.scene.add (this.mainEdgeObject);\n    }\n\n    GetBoundingBox (needToProcess)\n    {\n        let hasMesh = false;\n        let boundingBox = new THREE.Box3 ();\n        this.EnumerateMeshes ((mesh) => {\n            if (needToProcess (mesh.userData)) {\n                boundingBox.union (new THREE.Box3 ().setFromObject (mesh));\n                hasMesh = true;\n            }\n        });\n        if (!hasMesh) {\n            return null;\n        }\n        return boundingBox;\n    }\n\n    GetBoundingSphere (needToProcess)\n    {\n        let boundingBox = this.GetBoundingBox (needToProcess);\n        if (boundingBox === null) {\n            return null;\n        }\n\n        let boundingSphere = new THREE.Sphere ();\n        boundingBox.getBoundingSphere (boundingSphere);\n        return boundingSphere;\n    }\n\n    Clear ()\n    {\n        this.ClearMainObject ();\n        this.ClearMainEdgeObject ();\n    }\n\n    ClearMainObject ()\n    {\n        if (this.mainObject === null) {\n            return;\n        }\n\n        this.EnumerateMeshes ((mesh) => {\n            mesh.geometry.dispose ();\n        });\n        this.scene.remove (this.mainObject);\n        this.mainObject = null;\n    }\n\n    ClearMainEdgeObject ()\n    {\n        if (this.mainEdgeObject === null) {\n            return;\n        }\n\n        this.EnumerateMeshes ((mesh) => {\n            SetThreeMeshPolygonOffset (mesh, false);\n        });\n        this.EnumerateEdges ((edge) => {\n            edge.geometry.dispose ();\n        });\n        this.scene.remove (this.mainEdgeObject);\n        this.mainEdgeObject = null;\n    }\n\n    EnumerateMeshes (enumerator)\n    {\n        if (this.mainObject === null) {\n            return;\n        }\n        this.mainObject.traverse ((obj) => {\n            if (obj.isMesh) {\n                enumerator (obj);\n            }\n        });\n    }\n\n    EnumerateEdges (enumerator)\n    {\n        if (this.mainEdgeObject === null) {\n            return;\n        }\n        this.mainEdgeObject.traverse ((obj) => {\n            if (obj.isLineSegments) {\n                enumerator (obj);\n            }\n        });\n    }\n\n    GetMeshIntersectionUnderMouse (mouseCoords, camera, width, height)\n    {\n        if (this.mainObject === null) {\n            return null;\n        }\n\n        if (mouseCoords.x < 0.0 || mouseCoords.x > width || mouseCoords.y < 0.0 || mouseCoords.y > height) {\n            return null;\n        }\n\n        let raycaster = new THREE.Raycaster ();\n        let mousePos = new THREE.Vector2 ();\n        mousePos.x = (mouseCoords.x / width) * 2 - 1;\n        mousePos.y = -(mouseCoords.y / height) * 2 + 1;\n        raycaster.setFromCamera (mousePos, camera);\n        let iSectObjects = raycaster.intersectObject (this.mainObject, true);\n        for (let i = 0; i < iSectObjects.length; i++) {\n            let iSectObject = iSectObjects[i];\n            if (iSectObject.object.type === 'Mesh' && iSectObject.object.visible) {\n                return iSectObject;\n            }\n        }\n\n        return null;\n    }\n}\n\nexport class ViewerExtraGeometry\n{\n    constructor (scene)\n    {\n        this.scene = scene;\n        this.mainObject = null;\n    }\n\n    AddObject (object)\n    {\n        if (this.mainObject === null) {\n            this.mainObject = new THREE.Object3D ();\n            this.scene.add (this.mainObject);\n        }\n        this.mainObject.add (object);\n    }\n\n    Clear ()\n    {\n        if (this.mainObject === null) {\n            return;\n        }\n        this.mainObject.traverse ((obj) => {\n            if (obj.isMesh || obj.isLineSegments) {\n                obj.geometry.dispose ();\n            }\n        });\n        this.scene.remove (this.mainObject);\n        this.mainObject = null;\n    }\n}\n", "import { Coord3D, CoordDistance3D, SubCoord3D } from '../geometry/coord3d.js';\nimport { Direction } from '../geometry/geometry.js';\nimport { ColorToHexString } from '../model/color.js';\nimport { ShadingType } from '../threejs/threeutils.js';\nimport { Camera } from './camera.js';\nimport { GetDomElementInnerDimensions } from './domutils.js';\nimport { Navigation } from './navigation.js';\nimport { ViewerExtraGeometry, ViewerGeometry } from './viewergeometry.js';\n\nexport function GetDefaultCamera (direction)\n{\n    if (direction === Direction.X) {\n        return new Camera (\n            new Coord3D (2.0, -3.0, 1.5),\n            new Coord3D (0.0, 0.0, 0.0),\n            new Coord3D (1.0, 0.0, 0.0)\n        );\n    } else if (direction === Direction.Y) {\n        return new Camera (\n            new Coord3D (-1.5, 2.0, 3.0),\n            new Coord3D (0.0, 0.0, 0.0),\n            new Coord3D (0.0, 1.0, 0.0)\n        );\n    } else if (direction === Direction.Z) {\n        return new Camera (\n            new Coord3D (-1.5, -3.0, 2.0),\n            new Coord3D (0.0, 0.0, 0.0),\n            new Coord3D (0.0, 0.0, 1.0)\n        );\n    }\n    return null;\n}\n\nexport function TraverseThreeObject (object, processor)\n{\n    if (!processor (object)) {\n        return false;\n    }\n    for (let child of object.children) {\n        if (!TraverseThreeObject (child, processor)) {\n            return false;\n        }\n    }\n    return true;\n}\n\nexport function GetShadingTypeOfObject (mainObject)\n{\n    let shadingType = null;\n    TraverseThreeObject (mainObject, (obj) => {\n        if (obj.isMesh) {\n            for (const material of obj.material) {\n                if (material.type === 'MeshPhongMaterial') {\n                    shadingType = ShadingType.Phong;\n                } else if (material.type === 'MeshStandardMaterial') {\n                    shadingType = ShadingType.Physical;\n                }\n                return false;\n            }\n        }\n        return true;\n    });\n    return shadingType;\n}\n\nexport class UpVector\n{\n    constructor ()\n    {\n        this.direction = Direction.Z;\n        this.isFixed = true;\n        this.isFlipped = false;\n    }\n\n    SetDirection (newDirection, oldCamera)\n    {\n        this.direction = newDirection;\n        this.isFlipped = false;\n\n        let defaultCamera = GetDefaultCamera (this.direction);\n        let defaultDir = SubCoord3D (defaultCamera.eye, defaultCamera.center);\n\n        let distance = CoordDistance3D (oldCamera.center, oldCamera.eye);\n        let newEye = oldCamera.center.Clone ().Offset (defaultDir, distance);\n\n        let newCamera = oldCamera.Clone ();\n        if (this.direction === Direction.X) {\n            newCamera.up = new Coord3D (1.0, 0.0, 0.0);\n            newCamera.eye = newEye;\n        } else if (this.direction === Direction.Y) {\n            newCamera.up = new Coord3D (0.0, 1.0, 0.0);\n            newCamera.eye = newEye;\n        } else if (this.direction === Direction.Z) {\n            newCamera.up = new Coord3D (0.0, 0.0, 1.0);\n            newCamera.eye = newEye;\n        }\n        return newCamera;\n    }\n\n    SetFixed (isFixed, oldCamera)\n    {\n        this.isFixed = isFixed;\n        if (this.isFixed) {\n            return this.SetDirection (this.direction, oldCamera);\n        }\n        return null;\n    }\n\n    Flip (oldCamera)\n    {\n        this.isFlipped = !this.isFlipped;\n        let newCamera = oldCamera.Clone ();\n        newCamera.up.MultiplyScalar (-1.0);\n        return newCamera;\n    }\n}\n\nexport class ShadingModel\n{\n    constructor (scene)\n    {\n        this.scene = scene;\n\n        this.type = ShadingType.Phong;\n        this.ambientLight = new THREE.AmbientLight (0x888888);\n        this.directionalLight = new THREE.DirectionalLight (0x888888);\n        this.environment = null;\n        this.backgroundIsEnvMap = false;\n\n        this.scene.add (this.ambientLight);\n        this.scene.add (this.directionalLight);\n    }\n\n    SetType (type)\n    {\n        this.type = type;\n        this.UpdateShading ();\n    }\n\n    UpdateShading ()\n    {\n        if (this.type === ShadingType.Phong) {\n            this.ambientLight.color.set (0x888888);\n            this.directionalLight.color.set (0x888888);\n            this.scene.environment = null;\n            this.scene.background = null;\n        } else if (this.type === ShadingType.Physical) {\n            this.ambientLight.color.set (0x000000);\n            this.directionalLight.color.set (0x555555);\n            this.scene.environment = this.environment;\n            if (this.backgroundIsEnvMap) {\n                this.scene.background = this.environment;\n            } else {\n                this.scene.background = null;\n            }\n        }\n    }\n\n    SetEnvironment (textures, useAsBackground, onLoaded)\n    {\n        let loader = new THREE.CubeTextureLoader ();\n        this.environment = loader.load (textures, () => {\n            onLoaded ();\n        });\n        this.backgroundIsEnvMap = useAsBackground;\n    }\n\n    UpdateByCamera (camera)\n    {\n        const lightDir = SubCoord3D (camera.eye, camera.center);\n        this.directionalLight.position.set (lightDir.x, lightDir.y, lightDir.z);\n    }\n\n    CreateHighlightMaterial (highlightColor, withOffset)\n    {\n        let material = null;\n        if (this.type === ShadingType.Phong) {\n            material = new THREE.MeshPhongMaterial ({\n                color : highlightColor,\n                side : THREE.DoubleSide\n            });\n        } else if (this.type === ShadingType.Physical) {\n            material = new THREE.MeshStandardMaterial ({\n                color : highlightColor,\n                side : THREE.DoubleSide\n            });\n        }\n        if (material !== null && withOffset) {\n            material.polygonOffset = true;\n            material.polygonOffsetUnit = 1;\n            material.polygonOffsetFactor = 1;\n        }\n        return material;\n    }\n}\n\nexport class Viewer\n{\n    constructor ()\n    {\n        this.canvas = null;\n        this.renderer = null;\n        this.scene = null;\n        this.geometry = null;\n        this.extraGeometry = null;\n        this.camera = null;\n        this.shading = null;\n        this.navigation = null;\n        this.upVector = null;\n        this.settings = {\n            animationSteps : 40\n        };\n    }\n\n    Init (canvas)\n    {\n        this.canvas = canvas;\n        this.canvas.id = 'viewer';\n\n        let parameters = {\n            canvas : this.canvas,\n            antialias : true\n        };\n\n        this.renderer = new THREE.WebGLRenderer (parameters);\n        if (window.devicePixelRatio) {\n            this.renderer.setPixelRatio (window.devicePixelRatio);\n        }\n        this.renderer.setClearColor ('#ffffff', 1.0);\n        this.renderer.setSize (this.canvas.width, this.canvas.height);\n\n        this.scene = new THREE.Scene ();\n        this.geometry = new ViewerGeometry (this.scene);\n        this.extraGeometry = new ViewerExtraGeometry (this.scene);\n\n        this.InitNavigation ();\n        this.InitShading ();\n\n        this.Render ();\n    }\n\n    SetMouseClickHandler (onMouseClick)\n    {\n        this.navigation.SetMouseClickHandler (onMouseClick);\n    }\n\n    SetMouseMoveHandler (onMouseMove)\n    {\n        this.navigation.SetMouseMoveHandler (onMouseMove);\n    }\n\n    SetContextMenuHandler (onContext)\n    {\n        this.navigation.SetContextMenuHandler (onContext);\n    }\n\n    SetEnvironmentMapSettings (textures, useAsBackground)\n    {\n        this.shading.SetEnvironment (textures, useAsBackground, () => {\n            this.Render ();\n        });\n        this.shading.UpdateShading ();\n        this.Render ();\n    }\n\n    SetBackgroundColor (color)\n    {\n        let hexColor = '#' + ColorToHexString (color);\n        this.renderer.setClearColor (hexColor, 1.0);\n        this.Render ();\n    }\n\n    SetEdgeSettings (show, color, threshold)\n    {\n        this.geometry.SetEdgeSettings (show, color, threshold);\n        this.Render ();\n    }\n\n    GetCanvas ()\n    {\n        return this.canvas;\n    }\n\n    GetCamera ()\n    {\n        return this.navigation.GetCamera ();\n    }\n\n    SetCamera (camera)\n    {\n        this.navigation.SetCamera (camera);\n        this.Render ();\n    }\n\n    Resize (width, height)\n    {\n        let innerSize = GetDomElementInnerDimensions (this.canvas, width, height);\n        this.ResizeRenderer (innerSize.width, innerSize.height);\n    }\n\n    ResizeRenderer (width, height)\n    {\n        if (window.devicePixelRatio) {\n            this.renderer.setPixelRatio (window.devicePixelRatio);\n        }\n        this.camera.aspect = width / height;\n        this.camera.updateProjectionMatrix ();\n        this.renderer.setSize (width, height);\n        this.Render ();\n    }\n\n    FitSphereToWindow (boundingSphere, animation)\n    {\n        if (boundingSphere === null) {\n            return;\n        }\n        let center = new Coord3D (boundingSphere.center.x, boundingSphere.center.y, boundingSphere.center.z);\n        let radius = boundingSphere.radius;\n        let fov = this.camera.fov;\n\n        let newCamera = this.navigation.GetFitToSphereCamera (center, radius, fov);\n        this.navigation.MoveCamera (newCamera, animation ? this.settings.animationSteps : 0);\n    }\n\n    AdjustClippingPlanesToSphere (boundingSphere)\n    {\n        if (boundingSphere === null) {\n            return;\n        }\n        if (boundingSphere.radius < 10.0) {\n            this.camera.near = 0.01;\n            this.camera.far = 100.0;\n        } else if (boundingSphere.radius < 100.0) {\n            this.camera.near = 0.1;\n            this.camera.far = 1000.0;\n        } else if (boundingSphere.radius < 1000.0) {\n            this.camera.near = 10.0;\n            this.camera.far = 10000.0;\n        } else {\n            this.camera.near = 100.0;\n            this.camera.far = 1000000.0;\n        }\n        this.camera.updateProjectionMatrix ();\n        this.Render ();\n    }\n\n    IsFixUpVector ()\n    {\n        return this.navigation.IsFixUpVector ();\n    }\n\n    SetFixUpVector (fixUpVector)\n    {\n        let oldCamera = this.navigation.GetCamera ();\n        let newCamera = this.upVector.SetFixed (fixUpVector, oldCamera);\n        this.navigation.SetFixUpVector (fixUpVector);\n        if (newCamera !== null) {\n            this.navigation.MoveCamera (newCamera, this.settings.animationSteps);\n        }\n        this.Render ();\n    }\n\n    SetUpVector (upDirection, animate)\n    {\n        let oldCamera = this.navigation.GetCamera ();\n        let newCamera = this.upVector.SetDirection (upDirection, oldCamera);\n        let animationSteps = animate ? this.settings.animationSteps : 0;\n        this.navigation.MoveCamera (newCamera, animationSteps);\n        this.Render ();\n    }\n\n    FlipUpVector ()\n    {\n        let oldCamera = this.navigation.GetCamera ();\n        let newCamera = this.upVector.Flip (oldCamera);\n        this.navigation.MoveCamera (newCamera, 0);\n        this.Render ();\n    }\n\n    Render ()\n    {\n        let navigationCamera = this.navigation.GetCamera ();\n        this.camera.position.set (navigationCamera.eye.x, navigationCamera.eye.y, navigationCamera.eye.z);\n        this.camera.up.set (navigationCamera.up.x, navigationCamera.up.y, navigationCamera.up.z);\n        this.camera.lookAt (new THREE.Vector3 (navigationCamera.center.x, navigationCamera.center.y, navigationCamera.center.z));\n\n        this.shading.UpdateByCamera (navigationCamera);\n        this.renderer.render (this.scene, this.camera);\n    }\n\n    SetMainObject (object)\n    {\n        const shadingType = GetShadingTypeOfObject (object);\n        this.geometry.SetMainObject (object);\n        this.shading.SetType (shadingType);\n\n        this.Render ();\n    }\n\n    AddExtraObject (object)\n    {\n        this.extraGeometry.AddObject (object);\n        this.Render ();\n    }\n\n    Clear ()\n    {\n        this.geometry.Clear ();\n        this.extraGeometry.Clear ();\n        this.Render ();\n    }\n\n    ClearExtra ()\n    {\n        this.extraGeometry.Clear ();\n        this.Render ();\n    }\n\n    SetMeshesVisibility (isVisible)\n    {\n        this.geometry.EnumerateMeshes ((mesh) => {\n            let visible = isVisible (mesh.userData);\n            if (mesh.visible !== visible) {\n                mesh.visible = visible;\n            }\n        });\n        this.geometry.EnumerateEdges ((edge) => {\n            let visible = isVisible (edge.userData);\n            if (edge.visible !== visible) {\n                edge.visible = visible;\n            }\n        });\n        this.Render ();\n    }\n\n    SetMeshesHighlight (highlightColor, isHighlighted)\n    {\n        function CreateHighlightMaterials (originalMaterials, highlightMaterial)\n        {\n            let highlightMaterials = [];\n            for (let i = 0; i < originalMaterials.length; i++) {\n                highlightMaterials.push (highlightMaterial);\n            }\n            return highlightMaterials;\n        }\n\n        const highlightMaterial = this.CreateHighlightMaterial (highlightColor);\n        this.geometry.EnumerateMeshes ((mesh) => {\n            let highlighted = isHighlighted (mesh.userData);\n            if (highlighted) {\n                if (mesh.userData.threeMaterials === null) {\n                    mesh.userData.threeMaterials = mesh.material;\n                    mesh.material = CreateHighlightMaterials (mesh.material, highlightMaterial);\n                }\n            } else {\n                if (mesh.userData.threeMaterials !== null) {\n                    mesh.material = mesh.userData.threeMaterials;\n                    mesh.userData.threeMaterials = null;\n                }\n            }\n        });\n\n        this.Render ();\n    }\n\n    CreateHighlightMaterial (highlightColor)\n    {\n        const showEdges = this.geometry.edgeSettings.showEdges;\n        return this.shading.CreateHighlightMaterial (highlightColor, showEdges);\n    }\n\n    GetMeshUserDataUnderMouse (mouseCoords)\n    {\n        let intersection = this.GetMeshIntersectionUnderMouse (mouseCoords);\n        if (intersection === null) {\n            return null;\n        }\n        return intersection.object.userData;\n    }\n\n    GetMeshIntersectionUnderMouse (mouseCoords)\n    {\n        let canvasSize = this.GetCanvasSize ();\n        let intersection = this.geometry.GetMeshIntersectionUnderMouse (mouseCoords, this.camera, canvasSize.width, canvasSize.height);\n        if (intersection === null) {\n            return null;\n        }\n        return intersection;\n    }\n\n    GetBoundingBox (needToProcess)\n    {\n        return this.geometry.GetBoundingBox (needToProcess);\n    }\n\n    GetBoundingSphere (needToProcess)\n    {\n        return this.geometry.GetBoundingSphere (needToProcess);\n    }\n\n    EnumerateMeshesUserData (enumerator)\n    {\n        this.geometry.EnumerateMeshes ((mesh) => {\n            enumerator (mesh.userData);\n        });\n    }\n\n    InitNavigation ()\n    {\n        this.camera = new THREE.PerspectiveCamera (45.0, this.canvas.width / this.canvas.height, 0.1, 1000.0);\n        this.scene.add (this.camera);\n\n        let canvasElem = this.renderer.domElement;\n        let camera = GetDefaultCamera (Direction.Z);\n\n        this.navigation = new Navigation (canvasElem, camera, {\n            onUpdate : () => {\n                this.Render ();\n            }\n        });\n\n        this.upVector = new UpVector ();\n    }\n\n    InitShading  ()\n    {\n        this.shading = new ShadingModel (this.scene);\n    }\n\n    GetShadingType ()\n    {\n        return this.shading.type;\n    }\n\n    GetImageSize ()\n    {\n        let originalSize = new THREE.Vector2 ();\n        this.renderer.getSize (originalSize);\n        return {\n            width : parseInt (originalSize.x, 10),\n            height : parseInt (originalSize.y, 10)\n        };\n    }\n\n    GetCanvasSize ()\n    {\n        let width = this.canvas.width;\n        let height = this.canvas.height;\n        if (window.devicePixelRatio) {\n            width /= window.devicePixelRatio;\n            height /= window.devicePixelRatio;\n        }\n        return {\n            width : width,\n            height : height\n        };\n    }\n\n    GetImageAsDataUrl (width, height)\n    {\n        let originalSize = this.GetImageSize ();\n        let renderWidth = width;\n        let renderHeight = height;\n        if (window.devicePixelRatio) {\n            renderWidth /= window.devicePixelRatio;\n            renderHeight /= window.devicePixelRatio;\n        }\n        this.ResizeRenderer (renderWidth, renderHeight);\n        this.Render ();\n        let url = this.renderer.domElement.toDataURL ();\n        this.ResizeRenderer (originalSize.width, originalSize.height);\n        return url;\n    }\n}\n", "import { CreateModelUrlParameters, CreateUrlParser } from '../engine/parameters/parameterlist.js';\n\nexport class HashHandler\n{\n    constructor ()\n    {\n        this.skipNextEvent = false;\n        this.eventListener = null;\n    }\n\n    SetEventListener (eventListener)\n    {\n        this.eventListener = eventListener;\n        window.onhashchange = this.OnChange.bind (this);\n    }\n\n    SkipNextEventHandler ()\n    {\n        this.skipNextEvent = true;\n    }\n\n    HasHash ()\n    {\n        let hash = this.GetHash ();\n        return hash.length > 0;\n    }\n\n    ClearHash ()\n    {\n        this.SetHash ('');\n    }\n\n    GetModelFilesFromHash ()\n    {\n        let parser = CreateUrlParser (this.GetHash ());\n        return parser.GetModelUrls ();\n    }\n\n    SetModelFilesToHash (files)\n    {\n        let params = CreateModelUrlParameters (files);\n        this.SetHash (params);\n    }\n\n    GetCameraFromHash ()\n    {\n        let parser = CreateUrlParser (this.GetHash ());\n        return parser.GetCamera ();\n    }\n\n    GetBackgroundFromHash ()\n    {\n        let parser = CreateUrlParser (this.GetHash ());\n        return parser.GetBackgroundColor ();\n    }\n\n    GetEnvironmentSettingsFromHash ()\n    {\n        let parser = CreateUrlParser (this.GetHash ());\n        return parser.GetEnvironmentSettings ();\n    }\n\n    GetDefaultColorFromHash ()\n    {\n        let parser = CreateUrlParser (this.GetHash ());\n        return parser.GetDefaultColor ();\n    }\n\n    GetEdgeSettingsFromHash ()\n    {\n        let parser = CreateUrlParser (this.GetHash ());\n        return parser.GetEdgeSettings ();\n    }\n\n    GetHash ()\n    {\n        return window.location.hash.substring (1);\n    }\n\n    SetHash (hash)\n    {\n        window.location.hash = hash;\n    }\n\n    OnChange ()\n    {\n        if (this.skipNextEvent) {\n            this.skipNextEvent = false;\n            return;\n        }\n        this.eventListener ();\n    }\n}\n", "import { RunTasksBatch } from '../core/taskrunner.js';\nimport { IsEqual } from '../geometry/geometry.js';\nimport { MaterialType } from '../model/material.js';\nimport { MeshInstanceId } from '../model/meshinstance.js';\nimport { GetMeshType, MeshType } from '../model/meshutils.js';\nimport { ConvertColorToThreeColor, GetShadingType, ShadingType } from './threeutils.js';\n\nexport class ModelToThreeConversionParams\n{\n\tconstructor ()\n\t{\n\t\tthis.forceMediumpForMaterials = false;\n\t}\n}\n\nexport class ModelToThreeConversionOutput\n{\n\tconstructor ()\n\t{\n\t\tthis.defaultMaterial = null;\n\t}\n}\n\nexport class ThreeConversionStateHandler\n{\n\tconstructor (callbacks)\n\t{\n\t\tthis.callbacks = callbacks;\n\t\tthis.texturesNeeded = 0;\n\t\tthis.texturesLoaded = 0;\n\t\tthis.threeObject = null;\n\t}\n\n\tOnTextureNeeded ()\n\t{\n\t\tthis.texturesNeeded += 1;\n\t}\n\n\tOnTextureLoaded ()\n\t{\n\t\tthis.texturesLoaded += 1;\n\t\tthis.callbacks.onTextureLoaded ();\n\t\tthis.Finish ();\n\t}\n\n\tOnModelLoaded (threeObject)\n\t{\n\t\tthis.threeObject = threeObject;\n\t\tthis.Finish ();\n\t}\n\n\tFinish ()\n\t{\n\t\tif (this.threeObject !== null && this.texturesNeeded === this.texturesLoaded) {\n\t\t\tthis.callbacks.onModelLoaded (this.threeObject);\n\t\t}\n\t}\n}\n\nexport class ThreeNodeTree\n{\n\tconstructor (rootNode, threeRootNode)\n\t{\n\t\tthis.meshInstances = [];\n\t\tthis.AddNode (rootNode, threeRootNode);\n\t}\n\n\tAddNode (node, threeNode)\n\t{\n\t\tlet matrix = node.GetTransformation ().GetMatrix ();\n\t\tlet threeMatrix = new THREE.Matrix4 ().fromArray (matrix.Get ());\n\t\tthreeNode.applyMatrix4 (threeMatrix);\n\n\t\tfor (let childNode of node.GetChildNodes ()) {\n\t\t\tlet threeChildNode = new THREE.Object3D ();\n\t\t\tthreeNode.add (threeChildNode);\n\t\t\tthis.AddNode (childNode, threeChildNode);\n\t\t}\n\t\tfor (let meshIndex of node.GetMeshIndices ()) {\n\t\t\tthis.meshInstances.push ({\n\t\t\t\tnode : node,\n\t\t\t\tthreeNode : threeNode,\n\t\t\t\tmeshIndex : meshIndex\n\t\t\t});\n\t\t}\n\t}\n\n\tGetMeshInstances ()\n\t{\n\t\treturn this.meshInstances;\n\t}\n}\n\nexport function ConvertModelToThreeObject (model, params, output, callbacks)\n{\n\tfunction CreateThreeMaterial (stateHandler, model, materialIndex, shadingType, params, output)\n\t{\n\t\tfunction SetTextureParameters (texture, threeTexture)\n\t\t{\n\t\t\tthreeTexture.wrapS = THREE.RepeatWrapping;\n\t\t\tthreeTexture.wrapT = THREE.RepeatWrapping;\n\t\t\tthreeTexture.rotation = texture.rotation;\n\t\t\tthreeTexture.offset.x = texture.offset.x;\n\t\t\tthreeTexture.offset.y = texture.offset.y;\n\t\t\tthreeTexture.repeat.x = texture.scale.x;\n\t\t\tthreeTexture.repeat.y = texture.scale.y;\n\t\t}\n\n\t\tfunction LoadTexture (stateHandler, threeMaterial, texture, onTextureLoaded)\n\t\t{\n\t\t\tif (texture === null || !texture.IsValid ()) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tlet loader = new THREE.TextureLoader ();\n\t\t\tstateHandler.OnTextureNeeded ();\n\t\t\tloader.load (texture.url,\n\t\t\t\t(threeTexture) => {\n\t\t\t\t\tSetTextureParameters (texture, threeTexture);\n\t\t\t\t\tthreeMaterial.needsUpdate = true;\n\t\t\t\t\tonTextureLoaded (threeTexture);\n\t\t\t\t\tstateHandler.OnTextureLoaded ();\n\t\t\t\t},\n\t\t\t\tnull,\n\t\t\t\t(err) => {\n\t\t\t\t\tstateHandler.OnTextureLoaded ();\n\t\t\t\t}\n\t\t\t);\n\t\t}\n\n\t\tlet material = model.GetMaterial (materialIndex);\n\t\tlet baseColor = ConvertColorToThreeColor (material.color);\n\t\tif (material.vertexColors) {\n\t\t\tbaseColor.setRGB (1.0, 1.0, 1.0);\n\t\t}\n\n\t\tlet materialParams = {\n\t\t\tcolor : baseColor,\n\t\t\tvertexColors : material.vertexColors,\n\t\t\topacity : material.opacity,\n\t\t\ttransparent : material.transparent,\n\t\t\talphaTest : material.alphaTest,\n\t\t\tside : THREE.DoubleSide\n\t\t};\n\n\t\tif (params.forceMediumpForMaterials) {\n\t\t\tmaterialParams.precision = 'mediump';\n\t\t}\n\n\t\tlet threeMaterial = null;\n\t\tif (shadingType === ShadingType.Phong) {\n\t\t\tthreeMaterial = new THREE.MeshPhongMaterial (materialParams);\n\t\t\tif (material.type === MaterialType.Phong) {\n\t\t\t\tlet specularColor = ConvertColorToThreeColor (material.specular);\n\t\t\t\tif (IsEqual (material.shininess, 0.0)) {\n\t\t\t\t\tspecularColor.setRGB (0.0, 0.0, 0.0);\n\t\t\t\t}\n\t\t\t\tthreeMaterial.specular = specularColor;\n\t\t\t\tthreeMaterial.shininess = material.shininess * 100.0;\n\t\t\t\tLoadTexture (stateHandler, threeMaterial, material.specularMap, (threeTexture) => {\n\t\t\t\t\tthreeMaterial.specularMap = threeTexture;\n\t\t\t\t});\n\t\t\t}\n\t\t} else if (shadingType === ShadingType.Physical) {\n\t\t\tthreeMaterial = new THREE.MeshStandardMaterial (materialParams);\n\t\t\tif (material.type === MaterialType.Physical) {\n\t\t\t\tthreeMaterial.metalness = material.metalness;\n\t\t\t\tthreeMaterial.roughness = material.roughness;\n\t\t\t\tLoadTexture (stateHandler, threeMaterial, material.metalnessMap, (threeTexture) => {\n\t\t\t\t\tthreeMaterial.metalness = 1.0;\n\t\t\t\t\tthreeMaterial.roughness = 1.0;\n\t\t\t\t\tthreeMaterial.metalnessMap = threeTexture;\n\t\t\t\t\tthreeMaterial.roughnessMap = threeTexture;\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\n\t\tlet emissiveColor = ConvertColorToThreeColor (material.emissive);\n\t\tthreeMaterial.emissive = emissiveColor;\n\n\t\tLoadTexture (stateHandler, threeMaterial, material.diffuseMap, (threeTexture) => {\n\t\t\tif (!material.multiplyDiffuseMap) {\n\t\t\t\tthreeMaterial.color.setRGB (1.0, 1.0, 1.0);\n\t\t\t}\n\t\t\tthreeMaterial.map = threeTexture;\n\t\t});\n\t\tLoadTexture (stateHandler, threeMaterial, material.bumpMap, (threeTexture) => {\n\t\t\tthreeMaterial.bumpMap = threeTexture;\n\t\t});\n\t\tLoadTexture (stateHandler, threeMaterial, material.normalMap, (threeTexture) => {\n\t\t\tthreeMaterial.normalMap = threeTexture;\n\t\t});\n\t\tLoadTexture (stateHandler, threeMaterial, material.emissiveMap, (threeTexture) => {\n\t\t\tthreeMaterial.emissiveMap = threeTexture;\n\t\t});\n\n\t\tif (material.isDefault) {\n\t\t\toutput.defaultMaterial = threeMaterial;\n\t\t}\n\n\t\treturn threeMaterial;\n\t}\n\n\tfunction CreateThreeMesh (model, meshInstanceId, modelThreeMaterials)\n\t{\n\t\tlet mesh = model.GetMesh (meshInstanceId.meshIndex);\n\t\tlet triangleCount = mesh.TriangleCount ();\n\n\t\tlet triangleIndices = [];\n\t\tfor (let i = 0; i < triangleCount; i++) {\n\t\t\ttriangleIndices.push (i);\n\t\t}\n\t\ttriangleIndices.sort ((a, b) => {\n\t\t\tlet aTriangle = mesh.GetTriangle (a);\n\t\t\tlet bTriangle = mesh.GetTriangle (b);\n\t\t\treturn aTriangle.mat - bTriangle.mat;\n\t\t});\n\n\t\tlet threeGeometry = new THREE.BufferGeometry ();\n\t\tlet meshThreeMaterials = [];\n\t\tlet meshOriginalMaterials = [];\n\t\tlet modelToThreeMaterials = new Map ();\n\n\t\tlet vertices = [];\n\t\tlet vertexColors = [];\n\t\tlet normals = [];\n\t\tlet uvs = [];\n\n\t\tlet groups = [];\n\t\tgroups.push ({\n\t\t\tstart : 0,\n\t\t\tend : -1\n\t\t});\n\n\t\tlet meshHasVertexColors = (mesh.VertexColorCount () > 0);\n\t\tlet meshHasUVs = (mesh.TextureUVCount () > 0);\n\t\tfor (let i = 0; i < triangleIndices.length; i++) {\n\t\t\tlet triangleIndex = triangleIndices[i];\n\t\t\tlet triangle = mesh.GetTriangle (triangleIndex);\n\n\t\t\tlet v0 = mesh.GetVertex (triangle.v0);\n\t\t\tlet v1 = mesh.GetVertex (triangle.v1);\n\t\t\tlet v2 = mesh.GetVertex (triangle.v2);\n\t\t\tvertices.push (v0.x, v0.y, v0.z, v1.x, v1.y, v1.z, v2.x, v2.y, v2.z);\n\n\t\t\tif (triangle.HasVertexColors ()) {\n\t\t\t\tlet vc0 = ConvertColorToThreeColor (mesh.GetVertexColor (triangle.c0));\n\t\t\t\tlet vc1 = ConvertColorToThreeColor (mesh.GetVertexColor (triangle.c1));\n\t\t\t\tlet vc2 = ConvertColorToThreeColor (mesh.GetVertexColor (triangle.c2));\n\t\t\t\tvertexColors.push (\n\t\t\t\t\tvc0.r, vc0.g, vc0.b,\n\t\t\t\t\tvc1.r, vc1.g, vc1.b,\n\t\t\t\t\tvc2.r, vc2.g, vc2.b\n\t\t\t\t);\n\t\t\t} else if (meshHasVertexColors) {\n\t\t\t\tvertexColors.push (\n\t\t\t\t\t0.0, 0.0, 0.0,\n\t\t\t\t\t0.0, 0.0, 0.0,\n\t\t\t\t\t0.0, 0.0, 0.0\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tlet n0 = mesh.GetNormal (triangle.n0);\n\t\t\tlet n1 = mesh.GetNormal (triangle.n1);\n\t\t\tlet n2 = mesh.GetNormal (triangle.n2);\n\t\t\tnormals.push (n0.x, n0.y, n0.z, n1.x, n1.y, n1.z, n2.x, n2.y, n2.z);\n\n\t\t\tif (triangle.HasTextureUVs ()) {\n\t\t\t\tlet u0 = mesh.GetTextureUV (triangle.u0);\n\t\t\t\tlet u1 = mesh.GetTextureUV (triangle.u1);\n\t\t\t\tlet u2 = mesh.GetTextureUV (triangle.u2);\n\t\t\t\tuvs.push (u0.x, u0.y, u1.x, u1.y, u2.x, u2.y);\n\t\t\t} else if (meshHasUVs) {\n\t\t\t\tuvs.push (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\n\t\t\tlet modelMaterialIndex = triangle.mat;\n\t\t\tif (!modelToThreeMaterials.has (modelMaterialIndex)) {\n\t\t\t\tmodelToThreeMaterials.set (modelMaterialIndex, meshThreeMaterials.length);\n\t\t\t\tmeshThreeMaterials.push (modelThreeMaterials[modelMaterialIndex]);\n\t\t\t\tmeshOriginalMaterials.push (modelMaterialIndex);\n\t\t\t\tif (i > 0) {\n\t\t\t\t\tgroups[groups.length - 1].end = i - 1;\n\t\t\t\t\tgroups.push ({\n\t\t\t\t\t\tstart : groups[groups.length - 1].end + 1,\n\t\t\t\t\t\tend : -1\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tgroups[groups.length - 1].end = triangleCount - 1;\n\n\t\tthreeGeometry.setAttribute ('position', new THREE.Float32BufferAttribute (vertices, 3));\n\t\tif (vertexColors.length !== 0) {\n\t\t\tthreeGeometry.setAttribute ('color', new THREE.Float32BufferAttribute (vertexColors, 3));\n\t\t}\n\t\tthreeGeometry.setAttribute ('normal', new THREE.Float32BufferAttribute (normals, 3));\n\t\tif (uvs.length !== 0) {\n\t\t\tthreeGeometry.setAttribute ('uv', new THREE.Float32BufferAttribute (uvs, 2));\n\t\t}\n\t\tfor (let i = 0; i < groups.length; i++) {\n\t\t\tlet group = groups[i];\n\t\t\tthreeGeometry.addGroup (group.start * 3, (group.end - group.start + 1) * 3, i);\n\t\t}\n\n\t\tlet threeMesh = new THREE.Mesh (threeGeometry, meshThreeMaterials);\n\t\tthreeMesh.userData = {\n\t\t\toriginalMeshId : meshInstanceId,\n\t\t\toriginalMaterials : meshOriginalMaterials,\n\t\t\tthreeMaterials : null\n\t\t};\n\n\t\treturn threeMesh;\n\t}\n\n\tfunction ConvertMesh (threeObject, model, meshInstanceId, modelThreeMaterials)\n\t{\n\t\tlet mesh = model.GetMesh (meshInstanceId.meshIndex);\n\t\tlet type = GetMeshType (mesh);\n\t\tif (type === MeshType.TriangleMesh) {\n\t\t\tlet threeMesh = CreateThreeMesh (model, meshInstanceId, modelThreeMaterials);\n\t\t\tthreeObject.add (threeMesh);\n\t\t}\n\t}\n\n\tfunction ConvertNodeHierarchy (threeRootNode, model, modelThreeMaterials, stateHandler)\n\t{\n\t\tlet rootNode = model.GetRootNode ();\n\t\tlet nodeTree = new ThreeNodeTree (rootNode, threeRootNode);\n\t\tlet meshInstances = nodeTree.GetMeshInstances ();\n\n\t\tRunTasksBatch (meshInstances.length, 100, {\n\t\t\trunTask : (firstMeshInstanceIndex, lastMeshInstanceIndex, onReady) => {\n\t\t\t\tfor (let meshInstanceIndex = firstMeshInstanceIndex; meshInstanceIndex <= lastMeshInstanceIndex; meshInstanceIndex++) {\n\t\t\t\t\tlet meshInstance = meshInstances[meshInstanceIndex];\n\t\t\t\t\tlet node = meshInstance.node;\n\t\t\t\t\tlet threeNode = meshInstance.threeNode;\n\t\t\t\t\tlet meshInstanceId = new MeshInstanceId (node.GetId (), meshInstance.meshIndex);\n\t\t\t\t\tConvertMesh (threeNode, model, meshInstanceId, modelThreeMaterials);\n\t\t\t\t}\n\t\t\t\tonReady ();\n\t\t\t},\n\t\t\tonReady : () => {\n\t\t\t\tstateHandler.OnModelLoaded (threeRootNode);\n\t\t\t}\n\t\t});\n\t}\n\n\tlet stateHandler = new ThreeConversionStateHandler (callbacks);\n\tlet shadingType = GetShadingType (model);\n\n\tlet modelThreeMaterials = [];\n\tfor (let materialIndex = 0; materialIndex < model.MaterialCount (); materialIndex++) {\n\t\tlet threeMaterial = CreateThreeMaterial (stateHandler, model, materialIndex, shadingType, params, output);\n\t\tmodelThreeMaterials.push (threeMaterial);\n\t}\n\n\tlet threeObject = new THREE.Object3D ();\n\tConvertNodeHierarchy (threeObject, model, modelThreeMaterials, stateHandler);\n}\n", "import { Direction } from '../geometry/geometry.js';\nimport { Importer } from '../import/importer.js';\nimport { ConvertModelToThreeObject, ModelToThreeConversionOutput, ModelToThreeConversionParams } from './threeconverter.js';\nimport { ConvertColorToThreeColor, HasHighpDriverIssue } from './threeutils.js';\n\nexport class ThreeModelLoader\n{\n    constructor ()\n    {\n        this.importer = new Importer ();\n        this.inProgress = false;\n        this.defaultMaterial = null;\n        this.hasHighpDriverIssue = HasHighpDriverIssue ();\n    }\n\n    InProgress ()\n    {\n        return this.inProgress;\n    }\n\n    LoadModel (files, fileSource, settings, callbacks)\n    {\n        if (this.inProgress) {\n            return;\n        }\n\n        this.inProgress = true;\n        callbacks.onLoadStart ();\n        this.importer.ImportFiles (files, fileSource, settings, {\n            onFilesLoaded : () => {\n                callbacks.onImportStart ();\n            },\n            onSelectMainFile : (fileNames, selectFile) => {\n                if (!callbacks.onSelectMainFile) {\n                    selectFile (0);\n                } else {\n                    callbacks.onSelectMainFile (fileNames, selectFile);\n                }\n            },\n            onImportSuccess : (importResult) => {\n                callbacks.onVisualizationStart ();\n                let params = new ModelToThreeConversionParams ();\n                params.forceMediumpForMaterials = this.hasHighpDriverIssue;\n                let output = new ModelToThreeConversionOutput ();\n                ConvertModelToThreeObject (importResult.model, params, output, {\n                    onTextureLoaded : () => {\n                        callbacks.onTextureLoaded ();\n                    },\n                    onModelLoaded : (threeObject) => {\n                        this.defaultMaterial = output.defaultMaterial;\n                        if (importResult.upVector === Direction.X) {\n                            let rotation = new THREE.Quaternion ().setFromAxisAngle (new THREE.Vector3 (0.0, 0.0, 1.0), Math.PI / 2.0);\n                            threeObject.quaternion.multiply (rotation);\n                        } else if (importResult.upVector === Direction.Z) {\n                            let rotation = new THREE.Quaternion ().setFromAxisAngle (new THREE.Vector3 (1.0, 0.0, 0.0), -Math.PI / 2.0);\n                            threeObject.quaternion.multiply (rotation);\n                        }\n                        callbacks.onModelFinished (importResult, threeObject);\n                        this.inProgress = false;\n                    }\n                });\n            },\n            onImportError : (importError) => {\n                callbacks.onLoadError (importError);\n                this.inProgress = false;\n            }\n        });\n    }\n\n    GetImporter ()\n    {\n        return this.importer;\n    }\n\n    GetDefaultMaterial ()\n    {\n        return this.defaultMaterial;\n    }\n\n    ReplaceDefaultMaterialColor (defaultColor)\n    {\n        if (this.defaultMaterial !== null && !this.defaultMaterial.vertexColors) {\n            this.defaultMaterial.color = ConvertColorToThreeColor (defaultColor);\n        }\n    }\n}\n", "import { AddDiv, CreateDiv } from '../engine/viewer/domutils.js';\nimport { AddSvgIconElement, CreateInlineColorCircle, IsHoverEnabled } from './utils.js';\n\nlet currentDialog = null;\n\nexport function CloseAllDialogs ()\n{\n    if (currentDialog === null) {\n        return;\n    }\n    currentDialog.Close ();\n    currentDialog = null;\n}\n\nfunction OnCloseDialog ()\n{\n    currentDialog = null;\n}\n\nfunction OnOpenDialog (dialog)\n{\n    CloseAllDialogs ();\n    currentDialog = dialog;\n}\n\nclass Dialog\n{\n    constructor ()\n    {\n        this.modalDiv = CreateDiv ('ov_modal');\n        this.modalDiv.addEventListener ('mousemove', (ev) => {\n            ev.stopPropagation ();\n        });\n\n        this.overlayDiv = null;\n        this.resizeHandler = null;\n        this.positionCalculator = null;\n        this.closeHandler = null;\n        this.isOpen = false;\n        this.closeable = true;\n    }\n\n    GetContentDiv ()\n    {\n        return this.modalDiv;\n    }\n\n    SetCloseable (closeable)\n    {\n        this.closeable = closeable;\n    }\n\n    SetPositionCalculator (positionCalculator)\n    {\n        this.positionCalculator = positionCalculator;\n    }\n\n    SetCloseHandler (closeHandler)\n    {\n        this.closeHandler = closeHandler;\n    }\n\n    Open ()\n    {\n        if (this.isOpen) {\n            return;\n        }\n\n        OnOpenDialog (this);\n\n        this.overlayDiv = AddDiv (document.body, 'ov_modal_overlay');\n        document.body.appendChild (this.modalDiv);\n\n        this.resizeHandler = this.Resize.bind (this);\n        window.addEventListener ('resize', this.resizeHandler);\n        if (this.closeable) {\n            this.overlayDiv.addEventListener ('click', (ev) => {\n                ev.preventDefault ();\n                this.Close ();\n            });\n            this.overlayDiv.addEventListener ('mousemove', (ev) => {\n                ev.stopPropagation ();\n            });\n            this.overlayDiv.addEventListener ('contextmenu', (ev) => {\n                ev.preventDefault ();\n                this.Close ();\n            });\n        }\n\n        this.isOpen = true;\n        this.Resize ();\n    }\n\n    Close ()\n    {\n        if (!this.isOpen) {\n            return;\n        }\n\n        OnCloseDialog ();\n\n        window.removeEventListener ('resize', this.resizeHandler);\n        if (this.closeHandler !== null) {\n            this.closeHandler ();\n        }\n\n        this.modalDiv.remove ();\n        this.overlayDiv.remove ();\n\n        this.overlayDiv = null;\n        this.resizeHandler = null;\n        this.isOpen = false;\n    }\n\n    Resize ()\n    {\n        let windowWidth = window.innerWidth;\n        let windowHeight = window.innerHeight;\n        let positionX = (windowWidth - this.modalDiv.offsetWidth) / 2;\n        let positionY = (windowHeight - this.modalDiv.offsetHeight) / 3;\n        if (this.positionCalculator !== null) {\n            let calculatedPosition = this.positionCalculator ();\n            positionX = calculatedPosition.x;\n            positionY = calculatedPosition.y;\n        }\n        this.modalDiv.style.left = positionX + 'px';\n        this.modalDiv.style.top = positionY + 'px';\n    }\n}\n\nexport class ProgressDialog extends Dialog\n{\n    constructor ()\n    {\n        super ();\n        this.SetCloseable (false);\n        this.textDiv = null;\n    }\n\n    Init (text)\n    {\n        let contentDiv = this.GetContentDiv ();\n        contentDiv.classList.add ('ov_progress');\n\n        AddDiv(contentDiv, 'ov_progress_img', '<img src=\"assets/images/Scribe-07.png\" style=\"height: 150px;width: 150px;margin: 0px auto;\" />');\n        this.textDiv = AddDiv (contentDiv, 'ov_progress_text');\n        this.SetText (text);\n    }\n\n    SetText (text)\n    {\n        this.textDiv.innerHTML = text;\n    }\n}\n\nexport class ButtonDialog extends Dialog\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    Init (title, buttons)\n    {\n        function AddButton (button, buttonsDiv)\n        {\n            let buttonDiv = AddDiv (buttonsDiv, 'ov_button ov_dialog_button', button.name);\n            if (button.subClass) {\n                buttonDiv.classList.add (button.subClass);\n            }\n            buttonDiv.addEventListener ('click', () => {\n                button.onClick ();\n            });\n        }\n\n        let contentDiv = this.GetContentDiv ();\n        contentDiv.classList.add ('ov_dialog');\n\n        AddDiv (contentDiv, 'ov_dialog_title', title);\n        let dialogContentDiv = AddDiv (contentDiv, 'ov_dialog_content');\n        let buttonsDiv = AddDiv (contentDiv, 'ov_dialog_buttons');\n        let buttonsInnerDiv = AddDiv (buttonsDiv, 'ov_dialog_buttons_inner');\n        for (let i = 0; i < buttons.length; i++) {\n            AddButton (buttons[i], buttonsInnerDiv);\n        }\n\n        return dialogContentDiv;\n    }\n}\n\nexport class PopupDialog extends Dialog\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    Init (positionCalculator)\n    {\n        let contentDiv = this.GetContentDiv ();\n        contentDiv.classList.add ('ov_popup');\n        this.SetPositionCalculator (positionCalculator);\n        return contentDiv;\n    }\n}\n\nexport class ListPopup extends PopupDialog\n{\n    constructor ()\n    {\n        super ();\n        this.listDiv = null;\n    }\n\n    Init (positionCalculator)\n    {\n        let contentDiv = super.Init (positionCalculator);\n        this.listDiv = AddDiv (contentDiv, 'ov_popup_list ov_thin_scrollbar');\n        return contentDiv;\n    }\n\n    AddListItem (item, callbacks)\n    {\n        let listItemDiv = AddDiv (this.listDiv, 'ov_popup_list_item');\n        if (item.icon) {\n            AddSvgIconElement (listItemDiv, item.icon, 'left_inline');\n        }\n        if (item.color) {\n            let iconDiv = AddDiv (listItemDiv, 'ov_popup_list_item_icon');\n            let colorCircle = CreateInlineColorCircle (item.color);\n            iconDiv.appendChild (colorCircle);\n        }\n        AddDiv (listItemDiv, 'ov_popup_list_item_name', item.name);\n        listItemDiv.addEventListener ('click', callbacks.onClick);\n        if (IsHoverEnabled () && callbacks.onHoverStart && callbacks.onHoverStop) {\n            listItemDiv.addEventListener ('mouseover', () => {\n                callbacks.onHoverStart ();\n            });\n            listItemDiv.addEventListener ('mouseout', () => {\n                callbacks.onHoverStop ();\n            });\n        }\n    }\n}\n", "import { AddDiv } from '../engine/viewer/domutils.js';\nimport { ButtonDialog, ListPopup } from './dialog.js';\n\nexport function ShowMessageDialog (title, message, subMessage)\n{\n    let dialog = new ButtonDialog ();\n    let contentDiv = dialog.Init (title, [\n        {\n            name : 'OK',\n            onClick () {\n                dialog.Close ();\n            }\n        }\n    ]);\n    AddDiv (contentDiv, 'ov_dialog_message', message);\n    if (subMessage !== null) {\n        AddDiv (contentDiv, 'ov_dialog_submessage', subMessage);\n    }\n    dialog.Open ();\n    return dialog;\n}\n\nexport function ShowListPopup (items, callbacks)\n{\n    if (items.length === 0) {\n        return null;\n    }\n\n    let popup = new ListPopup ();\n    popup.Init (() => {\n        return callbacks.calculatePosition (popup.GetContentDiv ());\n    });\n    for (let i = 0; i < items.length; i++) {\n        let item = items[i];\n        popup.AddListItem (item, {\n            onHoverStart : function () {\n                if (callbacks.onHoverStart) {\n                    callbacks.onHoverStart (i);\n                }\n            },\n            onHoverStop : function () {\n                if (callbacks.onHoverStop) {\n                    callbacks.onHoverStop (i);\n                }\n            },\n            onClick : function () {\n                popup.Close ();\n                callbacks.onClick (i);\n            }\n        });\n    }\n    popup.Open ();\n    return popup;\n}\n\nexport function CalculatePopupPositionToElementTopLeft (elementDiv, contentDiv)\n{\n    let offset = elementDiv.getBoundingClientRect ();\n    return {\n        x : offset.left - contentDiv.offsetWidth,\n        y : offset.top\n    };\n}\n\nexport function CalculatePopupPositionToElementBottomRight (elementDiv, contentDiv)\n{\n    let offset = elementDiv.getBoundingClientRect ();\n    return {\n        x : offset.left + elementDiv.offsetWidth,\n        y : offset.top + elementDiv.offsetHeight - contentDiv.offsetHeight\n    };\n}\n\nexport function CalculatePopupPositionToScreen (globalMouseCoordinates, contentDiv)\n{\n    let windowWidth = window.innerWidth;\n    let windowHeight = window.innerHeight;\n    let left =  globalMouseCoordinates.x;\n    let top =  globalMouseCoordinates.y;\n    let right = left + contentDiv.offsetWidth;\n    let bottom = top + contentDiv.offsetHeight;\n    if (right > windowWidth) {\n        left = left - (right - windowWidth);\n    }\n    if (bottom > windowHeight) {\n        top = top - (bottom - windowHeight);\n    }\n    return {\n        x : left,\n        y : top\n    };\n}\n", "import { AddDiv } from '../engine/viewer/domutils.js';\nimport { ThreeModelLoader } from '../engine/threejs/threemodelloader.js';\nimport { ShowMessageDialog } from './dialogs.js';\nimport { ButtonDialog, ProgressDialog } from './dialog.js';\nimport { AddSvgIconElement } from './utils.js';\nimport { ImportErrorCode } from '../engine/import/importer.js';\n\nexport class ThreeModelLoaderUI\n{\n    constructor ()\n    {\n        this.modelLoader = new ThreeModelLoader ();\n        this.modalDialog = null;\n    }\n\n    LoadModel (files, fileSource, settings, callbacks)\n    {\n        if (this.modelLoader.InProgress ()) {\n            return;\n        }\n\n        let progressDialog = null;\n        this.modelLoader.LoadModel (files, fileSource, settings, {\n            onLoadStart : () => {\n                this.CloseDialogIfOpen ();\n                callbacks.onStart ();\n                progressDialog = new ProgressDialog ();\n                progressDialog.Init ('Loading Model');\n                progressDialog.Open ();\n            },\n            onSelectMainFile : (fileNames, selectFile) => {\n                progressDialog.Close ();\n                this.modalDialog = this.ShowFileSelectorDialog (fileNames, (index) => {\n                    progressDialog.Open ();\n                    selectFile (index);\n                });\n            },\n            onImportStart : () => {\n                progressDialog.SetText ('Importing Model');\n            },\n            onVisualizationStart : () => {\n                progressDialog.SetText ('Visualizing Model');\n            },\n            onModelFinished : (importResult, threeObject) => {\n                progressDialog.Close ();\n                callbacks.onFinish (importResult, threeObject);\n            },\n            onTextureLoaded : () => {\n                callbacks.onRender ();\n            },\n            onLoadError : (importError) => {\n                progressDialog.Close ();\n                callbacks.onError (importError);\n                this.modalDialog = this.ShowErrorDialog (importError);\n            },\n        });\n    }\n\n    GetModelLoader ()\n    {\n        return this.modelLoader;\n    }\n\n    GetImporter ()\n    {\n        return this.modelLoader.GetImporter ();\n    }\n\n    ShowErrorDialog (importError)\n    {\n        if (importError.code === ImportErrorCode.NoImportableFile) {\n            return ShowMessageDialog (\n                'Something went wrong',\n                'No importable file found.',\n                null\n            );\n        } else if (importError.code === ImportErrorCode.FailedToLoadFile) {\n            return ShowMessageDialog (\n                'Something went wrong',\n                'Failed to load file for import.',\n                'The remote server refused to fulfill the request. Check if the url is correct, and make sure that CORS requests are allowed on the remote server.'\n            );\n        } else if (importError.code === ImportErrorCode.ImportFailed) {\n            return ShowMessageDialog (\n                'Something went wrong',\n                'Failed to import model.',\n                importError.message\n            );\n        } else {\n            return ShowMessageDialog (\n                'Something went wrong',\n                'Unknown error.',\n                null\n            );\n        }\n    }\n\n    ShowFileSelectorDialog (fileNames, onSelect)\n    {\n        let dialog = new ButtonDialog ();\n        let contentDiv = dialog.Init ('Select Model', [\n            {\n                name : 'Cancel',\n                subClass : 'outline',\n                onClick () {\n                    dialog.Close ();\n                }\n            }\n        ]);\n        dialog.SetCloseHandler (() => {\n            onSelect (null);\n        });\n\n        let text = 'Multiple importable models found. Select the model you would like to import from the list below.';\n        AddDiv (contentDiv, 'ov_dialog_message', text);\n\n        let fileListSection = AddDiv (contentDiv, 'ov_dialog_section');\n        let fileList = AddDiv (fileListSection, 'ov_dialog_import_file_list ov_thin_scrollbar');\n\n        for (let i = 0; i < fileNames.length; i++) {\n            let fileName = fileNames[i];\n            let fileLink = AddDiv (fileList, 'ov_dialog_file_link');\n            AddSvgIconElement (fileLink, 'meshes', 'ov_file_link_img');\n            AddDiv (fileLink, 'ov_dialog_file_link_text', fileName);\n            fileLink.addEventListener ('click', () => {\n                dialog.SetCloseHandler (null);\n                dialog.Close ();\n                onSelect (i);\n            });\n        }\n\n        dialog.Open ();\n        return dialog;\n    }\n\n    CloseDialogIfOpen ()\n    {\n        if (this.modalDialog !== null) {\n            this.modalDialog.Close ();\n            this.modalDialog = null;\n        }\n    }\n}\n", "import { CreateModelUrlParameters } from '../engine/parameters/parameterlist.js';\nimport { FileSource, TransformFileHostUrls } from '../engine/io/fileutils.js';\nimport { ImportSettings } from '../engine/import/importer.js';\nimport { AddDomElement } from '../engine/viewer/domutils.js';\nimport { Viewer } from '../engine/viewer/viewer.js';\nimport { HashHandler } from './hashhandler.js';\nimport { ThreeModelLoaderUI } from './threemodelloaderui.js';\nimport { Direction } from '../engine/geometry/geometry.js';\n\nexport class Embed\n{\n    constructor (parameters)\n    {\n        this.parameters = parameters;\n        this.viewer = new Viewer ();\n        this.hashHandler = new HashHandler ();\n        this.modelLoaderUI = new ThreeModelLoaderUI ();\n    }\n\n    Load ()\n    {\n        let canvas = AddDomElement (this.parameters.viewerDiv, 'canvas');\n        this.viewer.Init (canvas);\n        this.Resize ();\n\n        if (this.hashHandler.HasHash ()) {\n            let urls = this.hashHandler.GetModelFilesFromHash ();\n            if (urls === null) {\n                return;\n            }\n            TransformFileHostUrls (urls);\n\n            let envMapName = 'fishermans_bastion';\n            let bgIsEnvMap = false;\n            let environmentSettings = this.hashHandler.GetEnvironmentSettingsFromHash ();\n            if (environmentSettings !== null) {\n                envMapName = environmentSettings.environmentMapName;\n                bgIsEnvMap = environmentSettings.backgroundIsEnvMap;\n            }\n            let envMapPath = 'assets/envmaps/' + envMapName + '/';\n            let envMapTextures = [\n                envMapPath + 'posx.jpg',\n                envMapPath + 'negx.jpg',\n                envMapPath + 'posy.jpg',\n                envMapPath + 'negy.jpg',\n                envMapPath + 'posz.jpg',\n                envMapPath + 'negz.jpg'\n            ];\n            this.viewer.SetEnvironmentMapSettings (envMapTextures, bgIsEnvMap);\n\n            let background = this.hashHandler.GetBackgroundFromHash ();\n            if (background !== null) {\n                this.viewer.SetBackgroundColor (background);\n            }\n            let edgeSettings = this.hashHandler.GetEdgeSettingsFromHash ();\n            if (edgeSettings !== null) {\n                this.viewer.SetEdgeSettings (\n                    edgeSettings.showEdges,\n                    edgeSettings.edgeColor,\n                    edgeSettings.edgeThreshold\n                );\n            }\n            let settings = new ImportSettings ();\n            let defaultColor = this.hashHandler.GetDefaultColorFromHash ();\n            if (defaultColor !== null) {\n                settings.defaultColor = defaultColor;\n            }\n            this.modelLoaderUI.LoadModel (urls, FileSource.Url, settings, {\n                onStart : () =>\n                {\n\n                },\n                onFinish : (importResult, threeObject) =>\n                {\n                    this.OnModelFinished (threeObject);\n                },\n                onRender : () =>\n                {\n                    this.viewer.Render ();\n                },\n                onError : (importError) =>\n                {\n\n                }\n            });\n            let hashParameters = CreateModelUrlParameters (urls);\n            let websiteUrl = this.parameters.websiteLinkDiv.getAttribute ('href') + '#' + hashParameters;\n            this.parameters.websiteLinkDiv.setAttribute ('href', websiteUrl);\n        }\n\n\t\twindow.addEventListener ('resize', () => {\n\t\t\tthis.Resize ();\n\t\t});\n    }\n\n    Resize ()\n    {\n        let windowWidth = window.innerWidth;\n        let windowHeight = window.innerHeight;\n        this.viewer.Resize (windowWidth, windowHeight);\n    }\n\n    OnModelFinished (threeObject)\n    {\n        this.viewer.SetMainObject (threeObject);\n        let boundingSphere = this.viewer.GetBoundingSphere ((meshUserData) => {\n            return true;\n        });\n        this.viewer.AdjustClippingPlanesToSphere (boundingSphere);\n        let camera = this.hashHandler.GetCameraFromHash ();\n        if (camera !== null) {\n            this.viewer.SetCamera (camera);\n        } else {\n            this.viewer.SetUpVector (Direction.Y, false);\n            this.viewer.FitSphereToWindow (boundingSphere, false);\n        }\n    }\n}\n", "import { AddDiv, ShowDomElement, IsDomElementVisible, SetDomElementWidth, SetDomElementHeight } from '../engine/viewer/domutils.js';\nimport { AddSvgIconElement, SetSvgIconImageElement } from './utils.js';\n\nexport class Panel\n{\n    constructor (parentDiv)\n    {\n        this.parentDiv = parentDiv;\n        this.panelDiv = AddDiv (parentDiv);\n        ShowDomElement (this.panelDiv, false);\n        this.visible = false;\n    }\n\n    GetName ()\n    {\n        return null;\n    }\n\n    GetIcon ()\n    {\n        return null;\n    }\n\n    IsVisible ()\n    {\n        return this.visible;\n    }\n\n    Show (show)\n    {\n        if (this.visible === show) {\n            return;\n        }\n\n        this.visible = show;\n        ShowDomElement (this.panelDiv, this.visible);\n    }\n\n    Resize ()\n    {\n\n    }\n\n    Clear ()\n    {\n\n    }\n}\n\nexport class PanelSet\n{\n    constructor (parentDiv)\n    {\n        this.parentDiv = parentDiv;\n        this.menuDiv = AddDiv (parentDiv, 'ov_panel_set_menu');\n        this.contentDiv = AddDiv (parentDiv, 'ov_panel_set_content ov_thin_scrollbar');\n        this.panels = [];\n        this.panelButtons = [];\n        this.panelsVisible = true;\n        this.panelsPrevWidth = null;\n        this.callbacks = null;\n    }\n\n    Init (callbacks)\n    {\n        this.callbacks = callbacks;\n    }\n\n    GetContentDiv ()\n    {\n        return this.contentDiv;\n    }\n\n    AddPanel (panel)\n    {\n        this.panels.push (panel);\n        let button = AddSvgIconElement (this.menuDiv, panel.GetIcon (), 'ov_panel_set_menu_button');\n        button.setAttribute ('alt', panel.GetName ());\n        button.setAttribute ('title', panel.GetName ());\n        this.panelButtons.push (button);\n        button.addEventListener ('click', () => {\n            if (panel === this.GetVisiblePanel ()) {\n                this.ShowPanels (false);\n            } else {\n                this.ShowPanels (true);\n                this.ShowPanel (panel);\n            }\n        });\n    }\n\n    IsPanelsVisible ()\n    {\n        return this.panelsVisible;\n    }\n\n    ShowPanels (show)\n    {\n        if (!this.IsParentVisible ()) {\n            return;\n        }\n\n        if (this.panelsVisible === show) {\n            return;\n        }\n\n        this.panelsVisible = show;\n        if (this.panelsVisible) {\n            ShowDomElement (this.contentDiv, true);\n            SetDomElementWidth (this.parentDiv, this.menuDiv.offsetWidth + this.panelsPrevWidth);\n        } else {\n            for (let panelButton of this.panelButtons) {\n                panelButton.classList.remove ('selected');\n            }\n            for (let panel of this.panels) {\n                panel.Show (false);\n            }\n            this.panelsPrevWidth = this.contentDiv.offsetWidth;\n            SetDomElementWidth (this.parentDiv, this.menuDiv.offsetWidth);\n            ShowDomElement (this.contentDiv, false);\n        }\n\n        this.callbacks.onShowHidePanels (this.panelsVisible);\n        this.callbacks.onResize ();\n    }\n\n    ShowPanel (panel)\n    {\n        if (panel === this.GetVisiblePanel ()) {\n            return;\n        }\n\n        let panelButton = this.GetPanelButton (panel);\n        for (let otherPanelButton of this.panelButtons) {\n            if (otherPanelButton !== panelButton) {\n                otherPanelButton.classList.remove ('selected');\n            }\n        }\n        panelButton.classList.add ('selected');\n\n        for (let otherPanel of this.panels) {\n            if (otherPanel !== panel) {\n                otherPanel.Show (false);\n            }\n        }\n        panel.Show (true);\n        panel.Resize ();\n    }\n\n    GetVisiblePanel ()\n    {\n        if (!this.panelsVisible) {\n            return null;\n        }\n        for (let panel of this.panels) {\n            if (panel.IsVisible ()) {\n                return panel;\n            }\n        }\n        return null;\n    }\n\n    SetPanelIcon (panel, icon)\n    {\n        let panelButton = this.GetPanelButton (panel);\n        SetSvgIconImageElement (panelButton, icon);\n    }\n\n    GetPanelButton (panel)\n    {\n        const panelIndex = this.panels.indexOf (panel);\n        return this.panelButtons[panelIndex];\n    }\n\n    Resize ()\n    {\n        let height = this.parentDiv.offsetHeight;\n        SetDomElementHeight (this.menuDiv, height);\n        SetDomElementHeight (this.contentDiv, height);\n        if (this.panelsVisible) {\n            for (let panel of this.panels) {\n                if (panel.IsVisible ()) {\n                    panel.Resize ();\n                }\n            }\n        }\n    }\n\n    IsParentVisible ()\n    {\n        return IsDomElementVisible (this.parentDiv);\n    }\n\n    Clear ()\n    {\n        for (let panel of this.panels) {\n            panel.Clear ();\n        }\n    }\n}\n", "import { IsDefined } from '../engine/core/core.js';\nimport { AddDiv, CreateDiv, ShowDomElement, ClearDomElement, InsertDomElementBefore, InsertDomElementAfter } from '../engine/viewer/domutils.js';\nimport { CreateSvgIconElement, SetSvgIconImageElement } from './utils.js';\n\nexport function ScrollToView (element)\n{\n    element.scrollIntoView ({\n        behavior : 'smooth',\n        block : 'nearest'\n    });\n}\n\nexport class TreeViewButton\n{\n    constructor (imagePath)\n    {\n        this.imagePath = imagePath;\n        this.mainElement = CreateSvgIconElement (this.imagePath, 'ov_tree_item_button');\n        this.mainElement.setAttribute ('src', this.imagePath);\n    }\n\n    SetImage (imagePath)\n    {\n        this.imagePath = imagePath;\n        SetSvgIconImageElement (this.mainElement, this.imagePath);\n    }\n\n    OnClick (clickHandler)\n    {\n        this.mainElement.addEventListener ('click', (ev) => {\n            ev.stopPropagation ();\n            clickHandler (ev);\n        });\n    }\n\n    GetDomElement ()\n    {\n        return this.mainElement;\n    }\n}\n\nexport class TreeViewItem\n{\n    constructor (name, icon)\n    {\n        this.name = name;\n        this.parent = null;\n        this.mainElement = CreateDiv ('ov_tree_item');\n        this.mainElement.setAttribute ('title', this.name);\n        this.nameElement = AddDiv (this.mainElement, 'ov_tree_item_name', this.name);\n        if (IsDefined (icon)) {\n            let iconElement = CreateSvgIconElement (icon, 'ov_tree_item_icon');\n            InsertDomElementBefore (iconElement, this.nameElement);\n        }\n    }\n\n    OnClick (onClick)\n    {\n        this.mainElement.classList.add ('clickable');\n        this.mainElement.style.cursor = 'pointer';\n        this.mainElement.addEventListener ('click', onClick);\n    }\n\n    SetParent (parent)\n    {\n        this.parent = parent;\n    }\n\n    AddDomElements (parentDiv)\n    {\n        parentDiv.appendChild (this.mainElement);\n    }\n}\n\nexport class TreeViewSingleItem extends TreeViewItem\n{\n    constructor (name, icon)\n    {\n        super (name, icon);\n        this.selected = false;\n    }\n\n    SetSelected (selected)\n    {\n        this.selected = selected;\n        if (this.selected) {\n            this.mainElement.classList.add ('selected');\n            let parent = this.parent;\n            if (parent === null) {\n                ScrollToView (this.mainElement);\n            } else {\n                while (parent !== null) {\n                    parent.ShowChildren (true);\n                    ScrollToView (this.mainElement);\n                    parent = parent.parent;\n                }\n            }\n        } else {\n            this.mainElement.classList.remove ('selected');\n        }\n    }\n}\n\nexport class TreeViewButtonItem extends TreeViewSingleItem\n{\n    constructor (name, icon)\n    {\n        super (name, icon);\n        this.buttonsDiv = CreateDiv ('ov_tree_item_button_container');\n        InsertDomElementBefore (this.buttonsDiv, this.nameElement);\n    }\n\n    AppendButton (button)\n    {\n        this.buttonsDiv.appendChild (button.GetDomElement ());\n    }\n}\n\nexport class TreeViewGroupItem extends TreeViewItem\n{\n    constructor (name, icon)\n    {\n        super (name, icon);\n        this.children = [];\n        this.isVisible = true;\n        this.isChildrenVisible = false;\n\n        this.childrenDiv = null;\n        this.openButtonIcon = 'arrow_down';\n        this.closeButtonIcon = 'arrow_right';\n\n        this.openCloseButton = CreateSvgIconElement (this.openButtonIcon, 'ov_tree_item_icon');\n        InsertDomElementBefore (this.openCloseButton, this.nameElement);\n    }\n\n    AddChild (child)\n    {\n        this.CreateChildrenDiv ();\n        this.children.push (child);\n        child.SetParent (this);\n        child.AddDomElements (this.childrenDiv);\n    }\n\n    ExpandAll (expand)\n    {\n        for (let child of this.children) {\n            if (child instanceof TreeViewGroupItem) {\n                child.ShowChildren (expand);\n                child.ExpandAll (expand);\n            }\n        }\n    }\n\n    Show (show)\n    {\n        this.isVisible = show;\n        if (this.childrenDiv === null) {\n            return;\n        }\n        if (this.isVisible) {\n            ShowDomElement (this.mainElement, true);\n            this.childrenDiv.classList.add ('ov_tree_view_children');\n        } else {\n            ShowDomElement (this.mainElement, false);\n            this.childrenDiv.classList.remove ('ov_tree_view_children');\n        }\n    }\n\n    ShowChildren (show)\n    {\n        this.isChildrenVisible = show;\n        if (this.childrenDiv === null) {\n            return;\n        }\n        if (show) {\n            SetSvgIconImageElement (this.openCloseButton, this.openButtonIcon);\n            ShowDomElement (this.childrenDiv, true);\n        } else {\n            SetSvgIconImageElement (this.openCloseButton, this.closeButtonIcon);\n            ShowDomElement (this.childrenDiv, false);\n        }\n    }\n\n    CreateChildrenDiv ()\n    {\n        if (this.childrenDiv === null) {\n            this.childrenDiv = CreateDiv ('ov_tree_view_children');\n            InsertDomElementAfter (this.childrenDiv, this.mainElement);\n            this.Show (this.isVisible);\n            this.ShowChildren (this.isChildrenVisible);\n            this.OnClick ((ev) => {\n                this.isChildrenVisible = !this.isChildrenVisible;\n                this.ShowChildren (this.isChildrenVisible);\n            });\n        }\n        return this.childrenDiv;\n    }\n}\n\nexport class TreeViewGroupButtonItem extends TreeViewGroupItem\n{\n    constructor (name, icon)\n    {\n        super (name, icon);\n        this.buttonsDiv = CreateDiv ('ov_tree_item_button_container');\n        InsertDomElementBefore (this.buttonsDiv, this.nameElement);\n    }\n\n    AppendButton (button)\n    {\n        this.buttonsDiv.appendChild (button.GetDomElement ());\n    }\n}\n\nexport class TreeView\n{\n    constructor (parentDiv)\n    {\n        this.mainDiv = AddDiv (parentDiv, 'ov_tree_view');\n        this.children = [];\n    }\n\n    AddClass (className)\n    {\n        this.mainDiv.classList.add (className);\n    }\n\n    AddChild (child)\n    {\n        child.AddDomElements (this.mainDiv);\n        this.children.push (child);\n    }\n\n    Clear ()\n    {\n        ClearDomElement (this.mainDiv);\n        this.children = [];\n    }\n}\n", "import { AddDiv } from '../engine/viewer/domutils.js';\nimport { Panel } from './panelset.js';\nimport { TreeView } from './treeview.js';\nimport { AddSvgIconElement } from './utils.js';\n\nexport class NavigatorPopupButton\n{\n    constructor (parentDiv)\n    {\n        this.parentDiv = parentDiv;\n        this.callbacks = null;\n        this.popup = null;\n\n        this.button = AddDiv (this.parentDiv, 'ov_panel_button');\n        this.buttonText = AddDiv (this.button, 'ov_panel_button_text');\n        AddSvgIconElement (this.button, 'arrow_right', 'ov_panel_button_icon');\n        this.button.addEventListener ('click', () => {\n            this.OnButtonClick ();\n        });\n    }\n\n    Init (callbacks)\n    {\n        this.callbacks = callbacks;\n    }\n\n    OnButtonClick ()\n    {\n\n    }\n\n    Clear ()\n    {\n        if (this.popup !== null) {\n            this.popup.Close ();\n            this.popup = null;\n        }\n    }\n}\n\nexport class NavigatorPanel extends Panel\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv);\n        this.callbacks = null;\n\n        this.titleDiv = AddDiv (this.panelDiv, 'ov_navigator_tree_title');\n        this.treeDiv = AddDiv (this.panelDiv, 'ov_navigator_tree_panel ov_thin_scrollbar');\n        this.treeView = new TreeView (this.treeDiv);\n\n        let panelName = this.GetName ();\n        this.titleDiv.innerHTML = panelName;\n        this.titleDiv.setAttribute ('title', panelName);\n    }\n\n    Clear ()\n    {\n        this.treeView.Clear ();\n    }\n\n    GetName ()\n    {\n        return null;\n    }\n\n    Init (callbacks)\n    {\n        this.callbacks = callbacks;\n    }\n\n    Fill (importResult)\n    {\n\n    }\n}\n", "import { SetDomElementHeight, GetDomElementOuterHeight } from '../engine/viewer/domutils.js';\nimport { NavigatorPanel } from './navigatorpanel.js';\nimport { TreeViewButton, TreeViewButtonItem, TreeViewGroupItem, TreeViewSingleItem } from './treeview.js';\n\nexport class NavigatorFilesPanel extends NavigatorPanel\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv);\n    }\n\n    GetName ()\n    {\n        return 'Files';\n    }\n\n    GetIcon ()\n    {\n        return 'files';\n    }\n\n    Resize ()\n    {\n        let titleHeight = GetDomElementOuterHeight (this.titleDiv);\n        let height = this.parentDiv.offsetHeight;\n        SetDomElementHeight (this.treeDiv, height - titleHeight);\n    }\n\n    Clear ()\n    {\n        super.Clear ();\n    }\n\n    Fill (importResult)\n    {\n        super.Fill (importResult);\n        const usedFiles = importResult.usedFiles;\n        const missingFiles = importResult.missingFiles;\n\n        if (missingFiles.length > 0) {\n            let missingFilesItem = new TreeViewGroupItem ('Missing Files', null);\n            missingFilesItem.ShowChildren (true);\n            this.treeView.AddChild (missingFilesItem);\n            for (let i = 0; i < missingFiles.length; i++) {\n                let file = missingFiles[i];\n                let item = new TreeViewButtonItem (file);\n                let browseButton = new TreeViewButton ('open');\n                browseButton.OnClick (() => {\n                    this.callbacks.onFileBrowseButtonClicked ();\n                });\n                item.AppendButton (browseButton);\n                missingFilesItem.AddChild (item);\n            }\n            let filesItem = new TreeViewGroupItem ('Available Files', null);\n            filesItem.ShowChildren (true);\n            this.treeView.AddChild (filesItem);\n            for (let i = 0; i < usedFiles.length; i++) {\n                let file = usedFiles[i];\n                let item = new TreeViewSingleItem (file);\n                filesItem.AddChild (item);\n            }\n        } else {\n            for (let i = 0; i < usedFiles.length; i++) {\n                let file = usedFiles[i];\n                let item = new TreeViewSingleItem (file);\n                this.treeView.AddChild (item);\n            }\n        }\n    }\n}\n", "import { IsDefined } from '../engine/core/core.js';\nimport { TreeViewButton, TreeViewButtonItem, TreeViewGroupButtonItem, TreeViewSingleItem } from './treeview.js';\n\nexport const NavigatorItemRecurse =\n{\n    No : 0,\n    Parents : 1,\n    Children : 2,\n    All : 3\n};\n\nexport class MaterialItem extends TreeViewSingleItem\n{\n    constructor (name, materialIndex, callbacks)\n    {\n        super (name);\n        this.OnClick (() => {\n            callbacks.onSelected (materialIndex);\n        });\n    }\n}\n\nexport class MeshItem extends TreeViewButtonItem\n{\n    constructor (name, icon, meshInstanceId, callbacks)\n    {\n        super (name, icon);\n\n        this.meshInstanceId = meshInstanceId;\n        this.visible = true;\n\n        this.fitToWindowButton = new TreeViewButton ('fit');\n        this.fitToWindowButton.OnClick (() => {\n            callbacks.onFitToWindow (this.meshInstanceId);\n        });\n        this.AppendButton (this.fitToWindowButton);\n\n        this.showHideButton = new TreeViewButton ('visible');\n        this.showHideButton.OnClick (() => {\n            callbacks.onShowHide (this.meshInstanceId);\n        });\n        this.AppendButton (this.showHideButton);\n\n        this.OnClick (() => {\n            callbacks.onSelected (this.meshInstanceId);\n        });\n    }\n\n    GetMeshInstanceId ()\n    {\n        return this.meshInstanceId;\n    }\n\n    IsVisible ()\n    {\n        return this.visible;\n    }\n\n    SetVisible (visible, recurse)\n    {\n        if (this.visible === visible) {\n            return;\n        }\n        this.visible = visible;\n        if (this.visible) {\n            this.showHideButton.SetImage ('visible');\n        } else {\n            this.showHideButton.SetImage ('hidden');\n        }\n        if (recurse === NavigatorItemRecurse.Parents) {\n            if (this.parent instanceof NodeItem) {\n                let parentIsVisible = this.parent.CalculateIsVisible ();\n                this.parent.SetVisible (parentIsVisible, NavigatorItemRecurse.Parents);\n            }\n        }\n    }\n}\n\nexport class NodeItem extends TreeViewGroupButtonItem\n{\n    constructor (name, nodeId, callbacks)\n    {\n        super (name, null);\n        this.nodeId = nodeId;\n        this.callbacks = callbacks;\n        this.visible = true;\n\n        this.fitToWindowButton = new TreeViewButton ('fit');\n        this.fitToWindowButton.OnClick (() => {\n            this.callbacks.onFitToWindow (nodeId);\n        });\n        this.AppendButton (this.fitToWindowButton);\n\n        this.showHideButton = new TreeViewButton ('visible');\n        this.showHideButton.OnClick (() => {\n            this.callbacks.onShowHide (nodeId);\n        });\n        this.AppendButton (this.showHideButton);\n    }\n\n    GetNodeId ()\n    {\n        return this.nodeId;\n    }\n\n    IsVisible ()\n    {\n        return this.visible;\n    }\n\n    CalculateIsVisible ()\n    {\n        let isVisible = false;\n        for (let child of this.children) {\n            if (child instanceof NodeItem || child instanceof MeshItem) {\n                if (child.IsVisible ()) {\n                    isVisible = true;\n                    break;\n                }\n            }\n        }\n        return isVisible;\n    }\n\n    SetVisible (visible, recurse)\n    {\n        if (this.visible === visible) {\n            return;\n        }\n        this.visible = visible;\n        if (this.visible) {\n            this.showHideButton.SetImage ('visible');\n        } else {\n            this.showHideButton.SetImage ('hidden');\n        }\n        if (IsDefined (this.callbacks.onVisibilityChanged)) {\n            this.callbacks.onVisibilityChanged (this.visible);\n        }\n        if (recurse === NavigatorItemRecurse.Children || recurse === NavigatorItemRecurse.All) {\n            for (let child of this.children) {\n                if (child instanceof NodeItem || child instanceof MeshItem) {\n                    child.SetVisible (this.visible, NavigatorItemRecurse.Children);\n                }\n            }\n        }\n        if (recurse === NavigatorItemRecurse.Parents || recurse === NavigatorItemRecurse.All) {\n            if (this.parent instanceof NodeItem) {\n                let parentIsVisible = this.parent.CalculateIsVisible ();\n                this.parent.SetVisible (parentIsVisible, NavigatorItemRecurse.Parents);\n            }\n        }\n    }\n\n    EnumerateMeshItems (processor)\n    {\n        for (let child of this.children) {\n            if (child instanceof NodeItem) {\n                child.EnumerateMeshItems (processor);\n            } else if (child instanceof MeshItem) {\n                processor (child);\n            }\n        }\n    }\n}\n", "import { AddDiv, SetDomElementHeight, GetDomElementOuterHeight } from '../engine/viewer/domutils.js';\nimport { CalculatePopupPositionToElementBottomRight, ShowListPopup } from './dialogs.js';\nimport { MaterialItem } from './navigatoritems.js';\nimport { NavigatorPanel, NavigatorPopupButton } from './navigatorpanel.js';\nimport { GetMaterialName, GetMeshName } from './utils.js';\n\nclass NavigatorMeshesPopupButton extends NavigatorPopupButton\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv);\n        this.meshInfoArray = null;\n    }\n\n    Update (meshInfoArray)\n    {\n        this.meshInfoArray = meshInfoArray;\n        if (this.meshInfoArray === null) {\n            return;\n        }\n\n        let meshesText = 'Meshes (' + this.meshInfoArray.length + ')';\n        this.buttonText.innerHTML = meshesText;\n    }\n\n    OnButtonClick ()\n    {\n        if (this.meshInfoArray === null) {\n            return;\n        }\n\n        let meshItems = [];\n        for (let i = 0; i < this.meshInfoArray.length; i++) {\n            let meshInfo = this.meshInfoArray[i];\n            meshItems.push ({\n                name : GetMeshName (meshInfo.name)\n            });\n        }\n\n        if (meshItems.length === 0) {\n            return;\n        }\n\n        this.popup = ShowListPopup (meshItems, {\n            calculatePosition : (contentDiv) => {\n                return CalculatePopupPositionToElementBottomRight (this.button, contentDiv);\n            },\n            onHoverStart : (index) => {\n                const meshData = this.meshInfoArray[index];\n                this.callbacks.onMeshHover (meshData.meshId);\n            },\n            onHoverStop : (index) => {\n                this.callbacks.onMeshHover (null);\n            },\n            onClick : (index) => {\n                const meshData = this.meshInfoArray[index];\n                this.callbacks.onMeshSelected (meshData.meshId);\n            }\n        });\n    }\n}\n\nexport class NavigatorMaterialsPanel extends NavigatorPanel\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv);\n        this.callbacks = null;\n        this.materialIndexToItem = new Map ();\n\n        this.popupDiv = AddDiv (this.panelDiv, 'ov_navigator_info_panel');\n        this.meshesButton = new NavigatorMeshesPopupButton (this.popupDiv);\n    }\n\n    GetName ()\n    {\n        return 'Materials';\n    }\n\n    GetIcon ()\n    {\n        return 'materials';\n    }\n\n    Resize ()\n    {\n        let titleHeight = GetDomElementOuterHeight (this.titleDiv);\n        let popupHeight = GetDomElementOuterHeight (this.popupDiv);\n        let height = this.parentDiv.offsetHeight;\n        SetDomElementHeight (this.treeDiv, height - titleHeight - popupHeight);\n    }\n\n    Clear ()\n    {\n        super.Clear ();\n        this.meshesButton.Clear ();\n        this.materialIndexToItem = new Map ();\n    }\n\n    Init (callbacks)\n    {\n        super.Init (callbacks);\n        this.meshesButton.Init ({\n            onMeshHover : (meshInstanceId) => {\n                this.callbacks.onMeshTemporarySelected (meshInstanceId);\n            },\n            onMeshSelected : (meshInstanceId) => {\n                this.callbacks.onMeshSelected (meshInstanceId);\n            }\n        });\n    }\n\n    Fill (importResult)\n    {\n        super.Fill (importResult);\n        const model = importResult.model;\n        for (let materialIndex = 0; materialIndex < model.MaterialCount (); materialIndex++) {\n            let material = model.GetMaterial (materialIndex);\n            let materialName = GetMaterialName (material.name);\n            let materialItem = new MaterialItem (materialName, materialIndex, {\n                onSelected : (materialIndex) => {\n                    this.callbacks.onMaterialSelected (materialIndex);\n                }\n            });\n            this.materialIndexToItem.set (materialIndex, materialItem);\n            this.treeView.AddChild (materialItem);\n        }\n    }\n\n    GetMaterialItem (materialIndex)\n    {\n        return this.materialIndexToItem.get (materialIndex);\n    }\n\n    SelectMaterialItem (materialIndex, isSelected)\n    {\n        this.GetMaterialItem (materialIndex).SetSelected (isSelected);\n    }\n\n    UpdateMeshList (meshInfoArray)\n    {\n        this.meshesButton.Update (meshInfoArray);\n    }\n}\n", "import { NodeType } from '../engine/model/node.js';\nimport { MeshInstanceId } from '../engine/model/meshinstance.js';\nimport { AddDiv, CreateDiv, ShowDomElement, ClearDomElement, InsertDomElementBefore, SetDomElementHeight, GetDomElementOuterHeight, IsDomElementVisible } from '../engine/viewer/domutils.js';\nimport { CalculatePopupPositionToElementBottomRight, ShowListPopup } from './dialogs.js';\nimport { MeshItem, NavigatorItemRecurse, NodeItem } from './navigatoritems.js';\nimport { NavigatorPanel, NavigatorPopupButton } from './navigatorpanel.js';\nimport { AddSvgIconElement, GetMaterialName, GetMeshName, GetNodeName, SetSvgIconImageElement } from './utils.js';\n\nconst MeshesPanelMode =\n{\n    Simple : 0,\n    FlatList : 1,\n    TreeView : 2\n};\n\nclass NavigatorMaterialsPopupButton extends NavigatorPopupButton\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv);\n        this.materialInfoArray = null;\n    }\n\n    Update (materialInfoArray)\n    {\n        this.materialInfoArray = materialInfoArray;\n        if (this.materialInfoArray === null) {\n            return;\n        }\n\n        let materialsText = 'Materials (' + this.materialInfoArray.length + ')';\n        this.buttonText.innerHTML = materialsText;\n    }\n\n    OnButtonClick ()\n    {\n        if (this.materialInfoArray === null) {\n            return;\n        }\n\n        let materialItems = [];\n        for (let i = 0; i < this.materialInfoArray.length; i++) {\n            let usedMaterial = this.materialInfoArray[i];\n            materialItems.push ({\n                name : GetMaterialName (usedMaterial.name),\n                color : usedMaterial.color\n            });\n        }\n\n        if (materialItems.length === 0) {\n            return;\n        }\n\n        this.popup = ShowListPopup (materialItems, {\n            calculatePosition : (contentDiv) => {\n                return CalculatePopupPositionToElementBottomRight (this.button, contentDiv);\n            },\n            onClick : (index) => {\n                let usedMaterial = this.materialInfoArray[index];\n                this.callbacks.onMaterialSelected (usedMaterial.index);\n            }\n        });\n    }\n}\n\nexport class NavigatorMeshesPanel extends NavigatorPanel\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv);\n\n        this.callbacks = null;\n        this.nodeIdToItem = new Map ();\n        this.meshInstanceIdToItem = new Map ();\n        this.rootItem = null;\n        this.mode = MeshesPanelMode.Simple;\n        this.buttons = null;\n\n        this.treeView.AddClass ('tight');\n        this.titleButtonsDiv = AddDiv (this.titleDiv, 'ov_navigator_tree_title_buttons');\n        this.buttonsDiv = CreateDiv ('ov_navigator_buttons');\n        InsertDomElementBefore (this.buttonsDiv, this.treeDiv);\n\n        this.popupDiv = AddDiv (this.panelDiv, 'ov_navigator_info_panel');\n        this.materialsButton = new NavigatorMaterialsPopupButton (this.popupDiv);\n    }\n\n    GetName ()\n    {\n        return 'Meshes';\n    }\n\n    GetIcon ()\n    {\n        return 'meshes';\n    }\n\n    Resize ()\n    {\n        let titleHeight = GetDomElementOuterHeight (this.titleDiv);\n        let buttonsHeight = 0;\n        if (IsDomElementVisible (this.buttonsDiv)) {\n            buttonsHeight = GetDomElementOuterHeight (this.buttonsDiv);\n        }\n        let popupHeight = GetDomElementOuterHeight (this.popupDiv);\n        let height = this.parentDiv.offsetHeight;\n        SetDomElementHeight (this.treeDiv, height - titleHeight - buttonsHeight - popupHeight);\n    }\n\n    Clear ()\n    {\n        this.ClearMeshTree ();\n        ClearDomElement (this.titleButtonsDiv);\n        ClearDomElement (this.buttonsDiv);\n        this.buttons = null;\n    }\n\n    ClearMeshTree ()\n    {\n        super.Clear ();\n        this.materialsButton.Clear ();\n        this.nodeIdToItem = new Map ();\n        this.meshInstanceIdToItem = new Map ();\n        this.rootItem = null;\n    }\n\n    Init (callbacks)\n    {\n        super.Init (callbacks);\n        this.materialsButton.Init ({\n            onMeshHover : (meshInstanceId) => {\n                this.callbacks.onMeshTemporarySelected (meshInstanceId);\n            },\n            onMeshSelected : (meshInstanceId) => {\n                this.callbacks.onMeshSelected (meshInstanceId);\n            },\n            onMaterialSelected : (materialIndex) => {\n                this.callbacks.onMaterialSelected (materialIndex);\n            }\n        });\n    }\n\n    Fill (importResult)\n    {\n        super.Fill (importResult);\n\n        const rootNode = importResult.model.GetRootNode ();\n        let isHierarchical = false;\n        for (let childNode of rootNode.GetChildNodes ()) {\n            if (childNode.GetType () === NodeType.GroupNode) {\n                isHierarchical = true;\n                break;\n            }\n        }\n        if (this.mode === MeshesPanelMode.Simple) {\n            if (isHierarchical) {\n                this.mode = MeshesPanelMode.FlatList;\n            }\n        } else if (this.mode === MeshesPanelMode.FlatList || this.mode === MeshesPanelMode.TreeView) {\n            if (!isHierarchical) {\n                this.mode = MeshesPanelMode.Simple;\n            }\n        }\n\n        this.FillButtons (importResult);\n        if (this.mode === MeshesPanelMode.Simple) {\n            ShowDomElement (this.buttonsDiv, false);\n            this.titleDiv.classList.add ('withbuttons');\n            this.titleDiv.classList.remove ('nomargin');\n        } else {\n            ShowDomElement (this.buttonsDiv, true);\n            this.titleDiv.classList.remove ('withbuttons');\n            this.titleDiv.classList.add ('nomargin');\n        }\n\n        this.FillMeshTree (importResult.model);\n        this.Resize ();\n    }\n\n    FillButtons (importResult)\n    {\n        function CreateButton (parentDiv, button, className, onClick)\n        {\n            button.div = AddDiv (parentDiv, 'ov_navigator_button');\n            button.div.setAttribute ('alt', button.name);\n            button.div.setAttribute ('title', button.name);\n            if (className) {\n                button.div.classList.add (className);\n            }\n            button.iconDiv = AddSvgIconElement (button.div, button.icon);\n            button.div.addEventListener ('click', () => {\n                onClick ();\n            });\n        }\n\n        function UpdateButtonsStatus (buttons, mode)\n        {\n            let showTree = (mode === MeshesPanelMode.TreeView);\n            if (showTree) {\n                buttons.flatList.iconDiv.classList.remove ('selected');\n                buttons.treeView.iconDiv.classList.add ('selected');\n            } else {\n                buttons.flatList.iconDiv.classList.add ('selected');\n                buttons.treeView.iconDiv.classList.remove ('selected');\n            }\n            ShowDomElement (buttons.separator, showTree);\n            ShowDomElement (buttons.expandAll.div, showTree);\n            ShowDomElement (buttons.collapseAll.div, showTree);\n        }\n\n        function UpdateView (panel, importResult)\n        {\n            let hiddenMeshInstanceIds = [];\n            panel.EnumerateMeshItems ((meshItem) => {\n                if (!meshItem.IsVisible ()) {\n                    hiddenMeshInstanceIds.push (meshItem.GetMeshInstanceId ());\n                }\n                return true;\n            });\n\n            panel.ClearMeshTree ();\n            panel.FillMeshTree (importResult.model);\n\n            for (let meshInstanceId of hiddenMeshInstanceIds) {\n                let meshItem = panel.GetMeshItem (meshInstanceId);\n                meshItem.SetVisible (false, NavigatorItemRecurse.Parents);\n            }\n\n            UpdateButtonsStatus (panel.buttons, panel.mode);\n            panel.callbacks.onViewTypeChanged ();\n        }\n\n        this.buttons = {\n            flatList : {\n                name : 'Flat list',\n                icon : 'flat_list',\n                div : null,\n                iconDiv : null\n            },\n            treeView : {\n                name : 'Tree view',\n                icon : 'tree_view',\n                div : null,\n                iconDiv : null\n            },\n            separator : null,\n            expandAll : {\n                name : 'Expand all',\n                icon : 'expand',\n                div : null,\n                iconDiv : null\n            },\n            collapseAll : {\n                name : 'Collapse all',\n                icon : 'collapse',\n                div : null,\n                iconDiv : null\n            },\n            showHideMeshes : {\n                name : 'Show/hide meshes',\n                icon : 'visible',\n                div : null,\n                iconDiv : null\n            },\n            fitToWindow : {\n                name : 'Fit meshes to window',\n                icon : 'fit',\n                div : null,\n                iconDiv : null\n            }\n        };\n\n        if (this.mode === MeshesPanelMode.Simple) {\n            CreateButton (this.titleButtonsDiv, this.buttons.showHideMeshes, 'right', () => {\n                let nodeId = this.rootItem.GetNodeId ();\n                this.callbacks.onNodeShowHide (nodeId);\n            });\n\n            CreateButton (this.titleButtonsDiv, this.buttons.fitToWindow, 'right', () => {\n                let nodeId = this.rootItem.GetNodeId ();\n                this.callbacks.onNodeFitToWindow (nodeId);\n            });\n        } else {\n            CreateButton (this.buttonsDiv, this.buttons.flatList, null, () => {\n                if (this.mode === MeshesPanelMode.FlatList) {\n                    return;\n                }\n                this.mode = MeshesPanelMode.FlatList;\n                UpdateView (this, importResult);\n            });\n\n            CreateButton (this.buttonsDiv, this.buttons.treeView, null, () => {\n                if (this.mode === MeshesPanelMode.TreeView) {\n                    return;\n                }\n                this.mode = MeshesPanelMode.TreeView;\n                UpdateView (this, importResult);\n            });\n\n            this.buttons.separator = AddDiv (this.buttonsDiv, 'ov_navigator_buttons_separator');\n\n            CreateButton (this.buttonsDiv, this.buttons.expandAll, null, () => {\n                this.rootItem.ExpandAll (true);\n            });\n\n            CreateButton (this.buttonsDiv, this.buttons.collapseAll, null, () => {\n                this.rootItem.ExpandAll (false);\n            });\n\n            CreateButton (this.buttonsDiv, this.buttons.showHideMeshes, 'right', () => {\n                let nodeId = this.rootItem.GetNodeId ();\n                this.callbacks.onNodeShowHide (nodeId);\n            });\n\n            CreateButton (this.buttonsDiv, this.buttons.fitToWindow, 'right', () => {\n                let nodeId = this.rootItem.GetNodeId ();\n                this.callbacks.onNodeFitToWindow (nodeId);\n            });\n\n            UpdateButtonsStatus (this.buttons, this.mode);\n        }\n    }\n\n    FillMeshTree (model)\n    {\n        function AddMeshToNodeTree (panel, model, node, meshIndex, parentItem, mode)\n        {\n            let mesh = model.GetMesh (meshIndex);\n            let meshName = GetMeshName (mesh.GetName ());\n            let meshInstanceId = new MeshInstanceId (node.GetId (), meshIndex);\n            let meshItemIcon = (mode === MeshesPanelMode.TreeView ? 'tree_mesh' : null);\n            let meshItem = new MeshItem (meshName, meshItemIcon, meshInstanceId, {\n                onShowHide : (selectedMeshId) => {\n                    panel.callbacks.onMeshShowHide (selectedMeshId);\n                },\n                onFitToWindow : (selectedMeshId) => {\n                    panel.callbacks.onMeshFitToWindow (selectedMeshId);\n                },\n                onSelected : (selectedMeshId) => {\n                    panel.callbacks.onMeshSelected (selectedMeshId);\n                }\n            });\n            panel.meshInstanceIdToItem.set (meshInstanceId.GetKey (), meshItem);\n            parentItem.AddChild (meshItem);\n        }\n\n        function CreateNodeItem (panel, node)\n        {\n            const nodeName = GetNodeName (node.GetName ());\n            const nodeId = node.GetId ();\n            let nodeItem = new NodeItem (nodeName, nodeId, {\n                onShowHide : (selectedNodeId) => {\n                    panel.callbacks.onNodeShowHide (selectedNodeId);\n                },\n                onFitToWindow : (selectedNodeId) => {\n                    panel.callbacks.onNodeFitToWindow (selectedNodeId);\n                }\n            });\n            panel.nodeIdToItem.set (nodeId, nodeItem);\n            return nodeItem;\n        }\n\n        function CreateDummyRootItem (panel, node)\n        {\n            const nodeId = node.GetId ();\n            let rootItem = new NodeItem (null, nodeId, {\n                onVisibilityChanged : (isVisible) => {\n                    if (isVisible) {\n                        SetSvgIconImageElement (panel.buttons.showHideMeshes.iconDiv, 'visible');\n                    } else {\n                        SetSvgIconImageElement (panel.buttons.showHideMeshes.iconDiv, 'hidden');\n                    }\n                }\n            });\n            rootItem.Show (false);\n            rootItem.ShowChildren (true);\n            panel.treeView.AddChild (rootItem);\n            panel.nodeIdToItem.set (nodeId, rootItem);\n            return rootItem;\n        }\n\n        function AddModelNodeToTree (panel, model, node, parentItem, mode)\n        {\n            let meshNodes = [];\n            for (let childNode of node.GetChildNodes ()) {\n                if (mode === MeshesPanelMode.TreeView) {\n                    if (childNode.GetType () === NodeType.GroupNode) {\n                        let nodeItem = CreateNodeItem (panel, childNode);\n                        parentItem.AddChild (nodeItem);\n                        AddModelNodeToTree (panel, model, childNode, nodeItem, mode);\n                    } else if (childNode.GetType () === NodeType.MeshNode) {\n                        meshNodes.push (childNode);\n                    }\n                } else {\n                    AddModelNodeToTree (panel, model, childNode, parentItem, mode);\n                }\n            }\n            for (let meshNode of meshNodes) {\n                AddModelNodeToTree (panel, model, meshNode, parentItem, mode);\n            }\n            for (let meshIndex of node.GetMeshIndices ()) {\n                AddMeshToNodeTree (panel, model, node, meshIndex, parentItem, mode);\n            }\n        }\n\n        let rootNode = model.GetRootNode ();\n        this.rootItem = CreateDummyRootItem (this, rootNode);\n        AddModelNodeToTree (this, model, rootNode, this.rootItem, this.mode);\n    }\n\n    UpdateMaterialList (materialInfoArray)\n    {\n        this.materialsButton.Update (materialInfoArray);\n    }\n\n    GetNodeItem (nodeId)\n    {\n        return this.nodeIdToItem.get (nodeId);\n    }\n\n    MeshItemCount ()\n    {\n        return this.meshInstanceIdToItem.size;\n    }\n\n    GetMeshItem (meshInstanceId)\n    {\n        return this.meshInstanceIdToItem.get (meshInstanceId.GetKey ());\n    }\n\n    EnumerateNodeItems (processor)\n    {\n        for (const nodeItem of this.nodeIdToItem.values ()) {\n            if (!processor (nodeItem)) {\n                break;\n            }\n        }\n    }\n\n    EnumerateMeshItems (processor)\n    {\n        for (const meshItem of this.meshInstanceIdToItem.values ()) {\n            if (!processor (meshItem)) {\n                break;\n            }\n        }\n    }\n\n    IsMeshVisible (meshInstanceId)\n    {\n        let meshItem = this.GetMeshItem (meshInstanceId);\n        return meshItem.IsVisible ();\n    }\n\n    HasHiddenMesh ()\n    {\n        let hasHiddenMesh = false;\n        this.EnumerateMeshItems ((meshItem) => {\n            if (!meshItem.IsVisible ()) {\n                hasHiddenMesh = true;\n                return false;\n            }\n            return true;\n        });\n        return hasHiddenMesh;\n    }\n\n    ShowAllMeshes (show)\n    {\n        this.EnumerateNodeItems ((nodeItem) => {\n            nodeItem.SetVisible (show, NavigatorItemRecurse.No);\n            return true;\n        });\n        this.EnumerateMeshItems ((meshItem) => {\n            meshItem.SetVisible (show, NavigatorItemRecurse.No);\n            return true;\n        });\n    }\n\n    ToggleNodeVisibility (nodeId)\n    {\n        let nodeItem = this.GetNodeItem (nodeId);\n        nodeItem.SetVisible (!nodeItem.IsVisible (), NavigatorItemRecurse.All);\n    }\n\n    ToggleMeshVisibility (meshInstanceId)\n    {\n        let meshItem = this.GetMeshItem (meshInstanceId);\n        meshItem.SetVisible (!meshItem.IsVisible (), NavigatorItemRecurse.Parents);\n    }\n\n    IsMeshIsolated (meshInstanceId)\n    {\n        let isIsolated = true;\n        this.EnumerateMeshItems ((meshItem) => {\n            if (!meshItem.GetMeshInstanceId ().IsEqual (meshInstanceId) && meshItem.IsVisible ()) {\n                isIsolated = false;\n                return false;\n            }\n            return true;\n        });\n        return isIsolated;\n    }\n\n    IsolateMesh (meshInstanceId)\n    {\n        this.ShowAllMeshes (false);\n        this.ToggleMeshVisibility (meshInstanceId);\n    }\n}\n", "import { ShowDomElement, SetDomElementHeight, GetDomElementOuterWidth, SetDomElementOuterHeight } from '../engine/viewer/domutils.js';\nimport { NavigatorFilesPanel } from './navigatorfilespanel.js';\nimport { NavigatorMaterialsPanel } from './navigatormaterialspanel.js';\nimport { NavigatorMeshesPanel } from './navigatormeshespanel.js';\nimport { PanelSet } from './panelset.js';\nimport { InstallVerticalSplitter } from './utils.js';\n\nexport const SelectionType =\n{\n    Material : 1,\n    Mesh : 2\n};\n\nexport class Selection\n{\n    constructor (type, data)\n    {\n        this.type = type;\n        this.materialIndex = null;\n        this.meshInstanceId = null;\n        if (this.type === SelectionType.Material) {\n            this.materialIndex = data;\n        } else if (this.type === SelectionType.Mesh) {\n            this.meshInstanceId = data;\n        }\n    }\n\n    IsEqual (rhs)\n    {\n        if (this.type !== rhs.type) {\n            return false;\n        }\n        if (this.type === SelectionType.Material) {\n            return this.materialIndex === rhs.materialIndex;\n        } else if (this.type === SelectionType.Mesh) {\n            return this.meshInstanceId.IsEqual (rhs.meshInstanceId);\n        }\n    }\n}\n\nexport class Navigator\n{\n    constructor (mainDiv, splitterDiv)\n    {\n        this.mainDiv = mainDiv;\n        this.splitterDiv = splitterDiv;\n\n        this.panelSet = new PanelSet (mainDiv);\n        this.callbacks = null;\n        this.selection = null;\n        this.tempSelectedMeshId = null;\n\n        this.filesPanel = new NavigatorFilesPanel (this.panelSet.GetContentDiv ());\n        this.materialsPanel = new NavigatorMaterialsPanel (this.panelSet.GetContentDiv ());\n        this.meshesPanel = new NavigatorMeshesPanel (this.panelSet.GetContentDiv ());\n\n        this.panelSet.AddPanel (this.filesPanel);\n        this.panelSet.AddPanel (this.materialsPanel);\n        this.panelSet.AddPanel (this.meshesPanel);\n        this.panelSet.ShowPanel (this.meshesPanel);\n    }\n\n    ShowPanels (show)\n    {\n        this.panelSet.ShowPanels (show);\n    }\n\n    Init (callbacks)\n    {\n        this.callbacks = callbacks;\n\n        this.panelSet.Init ({\n            onResize : () => {\n                ShowDomElement (this.splitterDiv, this.panelSet.IsPanelsVisible ());\n                this.callbacks.onResize ();\n            },\n            onShowHidePanels : (show) => {\n                this.callbacks.onShowHidePanels (show);\n            },\n        });\n\n        this.filesPanel.Init ({\n            onFileBrowseButtonClicked : () => {\n                this.callbacks.openFileBrowserDialog ();\n            }\n        });\n\n        this.materialsPanel.Init ({\n            onMaterialSelected : (materialIndex) => {\n                this.SetSelection (new Selection (SelectionType.Material, materialIndex));\n            },\n            onMeshTemporarySelected : (meshInstanceId) => {\n                this.tempSelectedMeshId = meshInstanceId;\n                this.callbacks.updateMeshesSelection ();\n            },\n            onMeshSelected : (meshInstanceId) => {\n                this.SetSelection (new Selection (SelectionType.Mesh, meshInstanceId));\n            }\n        });\n\n        this.meshesPanel.Init ({\n            onMeshSelected : (meshId) => {\n                this.SetSelection (new Selection (SelectionType.Mesh, meshId));\n            },\n            onMeshShowHide : (meshId) => {\n                this.ToggleMeshVisibility (meshId);\n            },\n            onMeshFitToWindow : (meshId) => {\n                this.FitMeshToWindow (meshId);\n            },\n            onNodeShowHide : (nodeId) => {\n                this.ToggleNodeVisibility (nodeId);\n            },\n            onNodeFitToWindow : (nodeId) => {\n                this.FitNodeToWindow (nodeId);\n            },\n            onMaterialSelected : (materialIndex) => {\n                this.SetSelection (new Selection (SelectionType.Material, materialIndex));\n            },\n            onViewTypeChanged : () => {\n                this.SetSelection (null);\n            }\n        });\n\n        InstallVerticalSplitter (this.splitterDiv, this.mainDiv, false, () => {\n            this.callbacks.onResize ();\n        });\n    }\n\n    GetWidth ()\n    {\n        let navigatorWidth = GetDomElementOuterWidth (this.mainDiv);\n        let splitterWidth = 0;\n        if (this.panelSet.IsPanelsVisible ()) {\n            splitterWidth = this.splitterDiv.offsetWidth;\n        }\n        return navigatorWidth + splitterWidth;\n    }\n\n    Resize (height)\n    {\n        SetDomElementOuterHeight (this.mainDiv, height);\n        SetDomElementHeight (this.splitterDiv, height);\n        this.panelSet.Resize ();\n    }\n\n    FillTree (importResult)\n    {\n        this.filesPanel.Fill (importResult);\n        if (importResult.missingFiles.length === 0) {\n            this.panelSet.SetPanelIcon (this.filesPanel, 'files');\n        } else {\n            this.panelSet.SetPanelIcon (this.filesPanel, 'missing_files');\n        }\n        this.materialsPanel.Fill (importResult);\n        this.meshesPanel.Fill (importResult);\n        this.OnSelectionChanged ();\n    }\n\n    MeshItemCount ()\n    {\n        return this.meshesPanel.MeshItemCount ();\n    }\n\n    IsMeshVisible (meshInstanceId)\n    {\n        return this.meshesPanel.IsMeshVisible (meshInstanceId);\n    }\n\n    HasHiddenMesh ()\n    {\n        return this.meshesPanel.HasHiddenMesh ();\n    }\n\n    ShowAllMeshes (show)\n    {\n        this.meshesPanel.ShowAllMeshes (show);\n        this.callbacks.updateMeshesVisibility ();\n    }\n\n    ToggleNodeVisibility (nodeId)\n    {\n        this.meshesPanel.ToggleNodeVisibility (nodeId);\n        this.callbacks.updateMeshesVisibility ();\n    }\n\n    ToggleMeshVisibility (meshInstanceId)\n    {\n        this.meshesPanel.ToggleMeshVisibility (meshInstanceId);\n        this.callbacks.updateMeshesVisibility ();\n    }\n\n    IsMeshIsolated (meshInstanceId)\n    {\n        return this.meshesPanel.IsMeshIsolated (meshInstanceId);\n    }\n\n    IsolateMesh (meshInstanceId)\n    {\n        this.meshesPanel.IsolateMesh (meshInstanceId);\n        this.callbacks.updateMeshesVisibility ();\n    }\n\n    GetSelectedMeshId ()\n    {\n        if (this.tempSelectedMeshId !== null) {\n            return this.tempSelectedMeshId;\n        }\n        if (this.selection === null || this.selection.type !== SelectionType.Mesh) {\n            return null;\n        }\n        return this.selection.meshInstanceId;\n    }\n\n    SetSelection (selection)\n    {\n        function SetEntitySelection (navigator, selection, select)\n        {\n            if (selection.type === SelectionType.Material) {\n                if (select && navigator.panelSet.IsPanelsVisible ()) {\n                    navigator.panelSet.ShowPanel (navigator.materialsPanel);\n                }\n                navigator.materialsPanel.SelectMaterialItem (selection.materialIndex, select);\n            } else if (selection.type === SelectionType.Mesh) {\n                if (select && navigator.panelSet.IsPanelsVisible ()) {\n                    navigator.panelSet.ShowPanel (navigator.meshesPanel);\n                }\n                navigator.meshesPanel.GetMeshItem (selection.meshInstanceId).SetSelected (select);\n            }\n        }\n\n        function SetCurrentSelection (navigator, selection)\n        {\n            navigator.selection = selection;\n            navigator.OnSelectionChanged ();\n        }\n\n        let oldSelection = this.selection;\n        if (oldSelection !== null) {\n            SetEntitySelection (this, oldSelection, false);\n        }\n\n        SetCurrentSelection (this, selection);\n        this.tempSelectedMeshId = null;\n\n        if (this.selection !== null) {\n            if (oldSelection !== null && oldSelection.IsEqual (this.selection)) {\n                SetEntitySelection (this, this.selection, false);\n                SetCurrentSelection (this, null);\n            } else {\n                SetEntitySelection (this, this.selection, true);\n            }\n        }\n\n        this.callbacks.updateMeshesSelection ();\n    }\n\n    OnSelectionChanged ()\n    {\n        if (this.selection === null) {\n            this.callbacks.onModelSelected ();\n        } else {\n            if (this.selection.type === SelectionType.Material) {\n                this.callbacks.onMaterialSelected (this.selection.materialIndex);\n            } else if (this.selection.type === SelectionType.Mesh) {\n                this.callbacks.onMeshSelected (this.selection.meshInstanceId);\n            }\n        }\n        this.UpdatePanels ();\n    }\n\n    UpdatePanels ()\n    {\n        let materialIndex = null;\n        let meshInstanceId = null;\n        if (this.selection !== null) {\n            if (this.selection.type === SelectionType.Material) {\n                materialIndex = this.selection.materialIndex;\n            } else if (this.selection.type === SelectionType.Mesh) {\n                meshInstanceId = this.selection.meshInstanceId;\n            }\n        }\n\n        let usedByMeshes = this.callbacks.getMeshesForMaterial (materialIndex);\n        this.materialsPanel.UpdateMeshList (usedByMeshes);\n\n        let usedByMaterials = this.callbacks.getMaterialsForMesh (meshInstanceId);\n        this.meshesPanel.UpdateMaterialList (usedByMaterials);\n    }\n\n    FitNodeToWindow (nodeId)\n    {\n        let meshInstanceIdSet = new Set ();\n        let nodeItem = this.meshesPanel.GetNodeItem (nodeId);\n        nodeItem.EnumerateMeshItems ((meshItem) => {\n            meshInstanceIdSet.add (meshItem.GetMeshInstanceId ());\n        });\n        this.callbacks.fitMeshesToWindow (meshInstanceIdSet);\n    }\n\n    FitMeshToWindow (meshInstanceId)\n    {\n        this.callbacks.fitMeshToWindow (meshInstanceId);\n    }\n\n    Clear ()\n    {\n        this.panelSet.Clear ();\n        this.selection = null;\n    }\n}\n", "import { ParameterConverter } from '../engine/parameters/parameterlist.js';\n\nexport function CookieSetStringVal (key, value)\n{\n    let date = new Date ();\n    let expirationDays = 365;\n    date.setTime (date.getTime () + (expirationDays * 24 * 60 * 60 * 1000));\n    document.cookie = key + '=' + value + '; expires=' + date.toUTCString () + ';';\n}\n\nexport function CookieGetStringVal (key, defVal)\n{\n    let cookie = decodeURIComponent (document.cookie);\n    let cookieParts = cookie.split (';');\n    for (let i = 0; i < cookieParts.length; i++) {\n        let currentCookie = cookieParts[i].trim ();\n        if (currentCookie.startsWith (key + '=')) {\n            return currentCookie.substring (key.length + 1);\n        }\n    }\n    return defVal;\n}\n\nexport function CookieGetBoolVal (key, defVal)\n{\n    let stringVal = CookieGetStringVal (key, null);\n    if (stringVal === null) {\n        return defVal;\n    }\n    return stringVal === 'true' ? true : false;\n}\n\nexport function CookieSetBoolVal (key, value)\n{\n    CookieSetStringVal (key, value ? 'true' : 'false');\n}\n\nexport function CookieGetIntVal (key, defVal)\n{\n    let stringVal = CookieGetStringVal (key, null);\n    if (stringVal === null) {\n        return defVal;\n    }\n    return parseInt (stringVal, 10);\n}\n\nexport function CookieSetIntVal (key, value)\n{\n    CookieSetStringVal (key, value.toString ());\n}\n\nexport function CookieGetColorVal (key, defVal)\n{\n    let stringVal = CookieGetStringVal (key, null);\n    if (stringVal === null) {\n        return defVal;\n    }\n    return ParameterConverter.StringToColor (stringVal);\n}\n\nexport function CookieSetColorVal (key, value)\n{\n    CookieSetStringVal (key, ParameterConverter.ColorToString (value));\n}\n\nexport function CookieClearVal (key)\n{\n    CookieSetStringVal (key, '');\n}\n", "import { Color } from '../engine/model/color.js';\nimport { CookieGetBoolVal, CookieGetColorVal, CookieGetIntVal, CookieGetStringVal, CookieSetBoolVal, CookieSetColorVal, CookieSetIntVal, CookieSetStringVal } from './cookiehandler.js';\n\nexport const Theme =\n{\n    Light : 1,\n    Dark : 2\n};\n\nexport class Settings\n{\n    constructor ()\n    {\n        this.environmentMapName = 'fishermans_bastion';\n        this.backgroundIsEnvMap = false;\n        this.backgroundColor = new Color (255, 255, 255);\n        this.defaultColor = new Color (200, 200, 200);\n        this.showEdges = false;\n        this.edgeColor = new Color (0, 0, 0);\n        this.edgeThreshold = 1;\n        this.themeId = Theme.Light;\n    }\n\n    LoadFromCookies ()\n    {\n        this.environmentMapName = CookieGetStringVal ('ov_environment_map', 'fishermans_bastion');\n        this.backgroundIsEnvMap = CookieGetBoolVal ('ov_background_is_envmap', false);\n        this.backgroundColor = CookieGetColorVal ('ov_background_color', new Color (255, 255, 255));\n        this.defaultColor = CookieGetColorVal ('ov_default_color', new Color (200, 200, 200));\n        this.showEdges = CookieGetBoolVal ('ov_show_edges', false);\n        this.edgeColor = CookieGetColorVal ('ov_edge_color', new Color (0, 0, 0));\n        this.edgeThreshold = CookieGetIntVal ('ov_edge_threshold', 1);\n        this.themeId = CookieGetIntVal ('ov_theme_id', Theme.Light);\n    }\n\n    SaveToCookies ()\n    {\n        CookieSetStringVal ('ov_environment_map', this.environmentMapName);\n        CookieSetBoolVal ('ov_background_is_envmap', this.backgroundIsEnvMap);\n        CookieSetColorVal ('ov_background_color', this.backgroundColor);\n        CookieSetColorVal ('ov_default_color', this.defaultColor);\n        CookieSetBoolVal ('ov_show_edges', this.showEdges);\n        CookieSetColorVal ('ov_edge_color', this.edgeColor);\n        CookieSetIntVal ('ov_edge_threshold', this.edgeThreshold);\n        CookieSetIntVal ('ov_theme_id', this.themeId);\n    }\n}\n", "import { CoordDistance3D, CrossVector3D, DotVector3D } from '../geometry/coord3d.js';\n\nexport function GetTriangleArea (v0, v1, v2)\n{\n    const a = CoordDistance3D (v0, v1);\n    const b = CoordDistance3D (v1, v2);\n    const c = CoordDistance3D (v0, v2);\n    const s = (a + b + c) / 2.0;\n    const areaSquare = s * (s - a) * (s - b) * (s - c);\n    if (areaSquare < 0.0) {\n        return 0.0;\n    }\n    return Math.sqrt (areaSquare);\n}\n\nexport function GetTetrahedronSignedVolume (v0, v1, v2)\n{\n    return DotVector3D (v0, CrossVector3D (v1, v2)) / 6.0;\n}\n\nexport function CalculateVolume (object3D)\n{\n    let volume = 0.0;\n    object3D.EnumerateTriangleVertices ((v0, v1, v2) => {\n        volume += GetTetrahedronSignedVolume (v0, v1, v2);\n    });\n    return volume;\n}\n\nexport function CalculateSurfaceArea (object3D)\n{\n    let surface = 0.0;\n    object3D.EnumerateTriangleVertices ((v0, v1, v2) => {\n        surface += GetTriangleArea (v0, v1, v2);\n    });\n    return surface;\n}\n", "import { AddDiv, ClearDomElement } from '../engine/viewer/domutils.js';\nimport { Panel } from './panelset.js';\n\nexport class SidebarPanel extends Panel\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv);\n        this.callbacks = null;\n\n        this.titleDiv = null;\n        if (this.HasTitle ()) {\n            this.titleDiv = AddDiv (this.panelDiv, 'ov_sidebar_title');\n            AddDiv (this.titleDiv, 'ov_sidebar_title_text', this.GetName ());\n            this.titleDiv.setAttribute ('title', this.GetName ());\n        }\n\n        this.contentDiv = AddDiv (this.panelDiv, 'ov_sidebar_content ov_thin_scrollbar');\n    }\n\n    GetName ()\n    {\n        return null;\n    }\n\n    HasTitle ()\n    {\n        return true;\n    }\n\n    Clear ()\n    {\n        ClearDomElement (this.contentDiv);\n    }\n\n    Init (callbacks)\n    {\n        this.callbacks = callbacks;\n    }\n}\n", "import { RunTaskAsync } from '../engine/core/taskrunner.js';\nimport { SubCoord3D } from '../engine/geometry/coord3d.js';\nimport { GetBoundingBox, IsSolid } from '../engine/model/modelutils.js';\nimport { CalculateVolume, CalculateSurfaceArea } from '../engine/model/quantities.js';\nimport { Property, PropertyType } from '../engine/model/property.js';\nimport { AddDiv, AddDomElement, ClearDomElement } from '../engine/viewer/domutils.js';\nimport { SidebarPanel } from './sidebarpanel.js';\nimport { CreateInlineColorCircle } from './utils.js';\nimport { GetFileName } from '../engine/io/fileutils.js';\nimport { MaterialType } from '../engine/model/material.js';\nimport { ColorToHexString } from '../engine/model/color.js';\n\nexport class SidebarDetailsPanel extends SidebarPanel\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv);\n    }\n\n    GetName ()\n    {\n        return 'Details';\n    }\n\n    GetIcon ()\n    {\n        return 'details';\n    }\n\n    AddObject3DProperties (object3D)\n    {\n        this.Clear ();\n        let table = AddDiv (this.contentDiv, 'ov_property_table');\n        let boundingBox = GetBoundingBox (object3D);\n        let size = SubCoord3D (boundingBox.max, boundingBox.min);\n        this.AddProperty (table, new Property (PropertyType.Integer, 'Vertices', object3D.VertexCount ()));\n        this.AddProperty (table, new Property (PropertyType.Integer, 'Triangles', object3D.TriangleCount ()));\n        this.AddProperty (table, new Property (PropertyType.Number, 'Size X', size.x));\n        this.AddProperty (table, new Property (PropertyType.Number, 'Size Y', size.y));\n        this.AddProperty (table, new Property (PropertyType.Number, 'Size Z', size.z));\n        this.AddCalculatedProperty (table, 'Volume', () => {\n            if (!IsSolid (object3D)) {\n                return null;\n            }\n            const volume = CalculateVolume (object3D);\n            return new Property (PropertyType.Number, null, volume);\n        });\n        this.AddCalculatedProperty (table, 'Surface', () => {\n            const surfaceArea = CalculateSurfaceArea (object3D);\n            return new Property (PropertyType.Number, null, surfaceArea);\n        });\n        if (object3D.PropertyGroupCount () > 0) {\n            let customTable = AddDiv (this.contentDiv, 'ov_property_table ov_property_table_custom');\n            for (let i = 0; i < object3D.PropertyGroupCount (); i++) {\n                const propertyGroup = object3D.GetPropertyGroup (i);\n                this.AddPropertyGroup (customTable, propertyGroup);\n                for (let j = 0; j < propertyGroup.PropertyCount (); j++) {\n                    const property = propertyGroup.GetProperty (j);\n                    this.AddPropertyInGroup (customTable, property);\n                }\n            }\n        }\n        this.Resize ();\n    }\n\n    AddMaterialProperties (material)\n    {\n        function AddTextureMap (obj, table, name, map)\n        {\n            if (map === null || map.name === null) {\n                return;\n            }\n            let fileName = GetFileName (map.name);\n            obj.AddProperty (table, new Property (PropertyType.Text, name, fileName));\n        }\n\n        this.Clear ();\n        let table = AddDiv (this.contentDiv, 'ov_property_table');\n        let typeString = null;\n        if (material.type === MaterialType.Phong) {\n            typeString = 'Phong';\n        } else if (material.type === MaterialType.Physical) {\n            typeString = 'Physical';\n        }\n        this.AddProperty (table, new Property (PropertyType.Text, 'Source', material.isDefault ? 'Default' : 'Model'));\n        this.AddProperty (table, new Property (PropertyType.Text, 'Type', typeString));\n        if (material.vertexColors) {\n            this.AddProperty (table, new Property (PropertyType.Text, 'Color', 'Vertex colors'));\n        } else {\n            this.AddProperty (table, new Property (PropertyType.Color, 'Color', material.color));\n            if (material.type === MaterialType.Phong) {\n                this.AddProperty (table, new Property (PropertyType.Color, 'Ambient', material.ambient));\n                this.AddProperty (table, new Property (PropertyType.Color, 'Specular', material.specular));\n            }\n        }\n        if (material.type === MaterialType.Physical) {\n            this.AddProperty (table, new Property (PropertyType.Percent, 'Metalness', material.metalness));\n            this.AddProperty (table, new Property (PropertyType.Percent, 'Roughness', material.roughness));\n        }\n        this.AddProperty (table, new Property (PropertyType.Percent, 'Opacity', material.opacity));\n        AddTextureMap (this, table, 'Diffuse Map', material.diffuseMap);\n        AddTextureMap (this, table, 'Bump Map', material.bumpMap);\n        AddTextureMap (this, table, 'Normal Map', material.normalMap);\n        AddTextureMap (this, table, 'Emissive Map', material.emissiveMap);\n        if (material.type === MaterialType.Phong) {\n            AddTextureMap (this, table, 'Specular Map', material.specularMap);\n        } else if (material.type === MaterialType.Physical) {\n            AddTextureMap (this, table, 'Metallic Map', material.metalnessMap);\n        }\n        this.Resize ();\n    }\n\n    AddPropertyGroup (table, propertyGroup)\n    {\n        let row = AddDiv (table, 'ov_property_table_row group', propertyGroup.name);\n        row.setAttribute ('title', propertyGroup.name);\n    }\n\n    AddProperty (table, property)\n    {\n        let row = AddDiv (table, 'ov_property_table_row');\n        let nameColumn = AddDiv (row, 'ov_property_table_cell ov_property_table_name', property.name + ':');\n        let valueColumn = AddDiv (row, 'ov_property_table_cell ov_property_table_value');\n        nameColumn.setAttribute ('title', property.name);\n        this.DisplayPropertyValue (property, valueColumn);\n        return row;\n    }\n\n    AddPropertyInGroup (table, property)\n    {\n        let row = this.AddProperty (table, property);\n        row.classList.add ('ingroup');\n    }\n\n    AddCalculatedProperty (table, name, calculateValue)\n    {\n        let row = AddDiv (table, 'ov_property_table_row');\n        let nameColumn = AddDiv (row, 'ov_property_table_cell ov_property_table_name', name + ':');\n        let valueColumn = AddDiv (row, 'ov_property_table_cell ov_property_table_value');\n        nameColumn.setAttribute ('title', name);\n\n        let calculateButton = AddDiv (valueColumn, 'ov_property_table_button', 'Calculate...');\n        calculateButton.addEventListener ('click', () => {\n            ClearDomElement (valueColumn);\n            valueColumn.innerHTML = 'Please wait...';\n            RunTaskAsync (() => {\n                let propertyValue = calculateValue ();\n                if (propertyValue === null) {\n                    valueColumn.innerHTML = '-';\n                } else {\n                    this.DisplayPropertyValue (propertyValue, valueColumn);\n                }\n            });\n        });\n    }\n\n    DisplayPropertyValue (property, targetDiv)\n    {\n        ClearDomElement (targetDiv);\n        let valueText = null;\n        if (property.type === PropertyType.Text) {\n            valueText = property.value;\n        } else if (property.type === PropertyType.Integer) {\n            valueText = property.value.toLocaleString ();\n        } else if (property.type === PropertyType.Number) {\n            valueText = property.value.toLocaleString (undefined, {\n                minimumFractionDigits: 2,\n                maximumFractionDigits: 2\n            });\n        } else if (property.type === PropertyType.Boolean) {\n            valueText = property.value ? 'True' : 'False';\n        } else if (property.type === PropertyType.Percent) {\n            valueText = parseInt (property.value * 100, 10).toString () + '%';\n        } else if (property.type === PropertyType.Color) {\n            let hexString = '#' + ColorToHexString (property.value);\n            let colorCircle = CreateInlineColorCircle (property.value);\n            targetDiv.appendChild (colorCircle);\n            AddDomElement (targetDiv, 'span', null, hexString);\n        }\n        if (valueText !== null) {\n            targetDiv.innerHTML = valueText;\n            targetDiv.setAttribute ('title', valueText);\n        }\n    }\n}\n", "export const FeatureSet =\n{\n    EnvironmentMap : false\n};\n", "import { Color, ColorToHexString } from '../engine/model/color.js';\nimport { AddDiv, AddDomElement, ShowDomElement, SetDomElementOuterHeight } from '../engine/viewer/domutils.js';\nimport { AddRangeSlider, AddToggle, AddCheckbox } from '../website/utils.js';\nimport { CalculatePopupPositionToElementTopLeft } from './dialogs.js';\nimport { FeatureSet } from './featureset.js';\nimport { PopupDialog } from './dialog.js';\nimport { Settings, Theme } from './settings.js';\nimport { SidebarPanel } from './sidebarpanel.js';\nimport { AddSvgIconElement } from './utils.js';\n\nfunction AddColorPicker (parentDiv, defaultColor, predefinedColors, onChange)\n{\n    let pickr = Pickr.create ({\n        el : parentDiv,\n        theme : 'monolith',\n        position : 'left-start',\n        swatches : predefinedColors,\n        comparison : false,\n        default : '#' + ColorToHexString (defaultColor),\n        components : {\n            preview : false,\n            opacity : false,\n            hue : true,\n            interaction: {\n                hex : false,\n                rgba : false,\n                hsla : false,\n                hsva : false,\n                cmyk : false,\n                input : true,\n                clear : false,\n                save : false\n            }\n        }\n    });\n    pickr.on ('change', (color, source, instance) => {\n        let rgbaColor = color.toRGBA ();\n        let ovColor = new Color (\n            parseInt (rgbaColor[0], 10),\n            parseInt (rgbaColor[1], 10),\n            parseInt (rgbaColor[2], 10)\n        );\n        onChange (ovColor);\n    });\n    return pickr;\n}\n\nclass EnvironmentMapPopup extends PopupDialog\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    ShowPopup (buttonDiv, settings, callbacks)\n    {\n        let contentDiv = super.Init (() => {\n            return CalculatePopupPositionToElementTopLeft (buttonDiv, contentDiv);\n        });\n\n        let envMapImages = [\n            {\n                element: null,\n                name: 'fishermans_bastion'\n            },\n            {\n                element: null,\n                name: 'citadella'\n            },\n            {\n                element: null,\n                name: 'maskonaive'\n            },\n            {\n                element: null,\n                name: 'teide'\n            },\n            {\n                element: null,\n                name: 'ice_river'\n            },\n            {\n                element: null,\n                name: 'park'\n            }\n        ];\n\n        for (let envMapImage of envMapImages) {\n            envMapImage.element = AddDomElement (contentDiv, 'img', 'ov_environment_map_preview');\n            envMapImage.element.setAttribute ('src', 'assets/envmaps/' + envMapImage.name + '.jpg');\n            if (envMapImage.name === settings.environmentMapName) {\n                envMapImage.element.classList.add ('selected');\n            }\n            envMapImage.element.addEventListener ('click', () => {\n                for (let otherImage of envMapImages) {\n                    otherImage.element.classList.remove ('selected');\n                }\n                envMapImage.element.classList.add ('selected');\n                settings.environmentMapName = envMapImage.name;\n                callbacks.onEnvironmentMapChange ();\n            });\n        }\n\n        let backgroundIsEnvMapCheckbox = AddCheckbox (contentDiv, 'use_as_background', 'Use as background', settings.backgroundIsEnvMap, () => {\n            settings.backgroundIsEnvMap = backgroundIsEnvMapCheckbox.checked;\n            callbacks.onEnvironmentMapChange ();\n        });\n\n        contentDiv.classList.add ('sidebar');\n        this.Open ();\n    }\n}\n\nclass SettingsSection\n{\n    constructor (parentDiv, title)\n    {\n        this.parentDiv = parentDiv;\n        this.contentDiv = AddDiv (this.parentDiv, 'ov_sidebar_settings_section');\n        AddDiv (this.contentDiv, 'ov_sidebar_title', title);\n    }\n\n    Init (settings, callbacks)\n    {\n\n    }\n\n    Update (settings)\n    {\n\n    }\n\n    Clear ()\n    {\n\n    }\n}\n\nclass SettingsModelDisplaySection extends SettingsSection\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv, 'Model Display');\n\n        this.environmentMapButton = null;\n        this.environmentMapPopup = null;\n\n        this.backgroundColorPicker = null;\n\n        this.edgeDisplayToggle = null;\n        this.edgeColorPicker = null;\n        this.thresholdSlider = null;\n        this.thresholdSliderValue = null;\n        this.edgeSettingsDiv = null;\n    }\n\n    Init (settings, callbacks)\n    {\n        if (FeatureSet.EnvironmentMap) {\n            this.environmentMapButton = AddDiv (this.contentDiv, 'ov_panel_button');\n            AddSvgIconElement (this.environmentMapButton, 'arrow_left', 'ov_panel_button_left_icon');\n            AddDiv (this.environmentMapButton, 'ov_panel_button_text', 'Environment Map');\n            this.environmentMapButton.addEventListener ('click', () => {\n                this.environmentMapPopup = new EnvironmentMapPopup ();\n                this.environmentMapPopup.ShowPopup (this.environmentMapButton, settings, {\n                    onEnvironmentMapChange : () => {\n                        callbacks.onEnvironmentMapChange ();\n                    }\n                });\n            });\n        }\n\n        let backgroundColorDiv = AddDiv (this.contentDiv, 'ov_sidebar_parameter');\n        let backgroundColorInput = AddDiv (backgroundColorDiv, 'ov_color_picker');\n        AddDiv (backgroundColorDiv, null, 'Background Color');\n        let predefinedBackgroundColors = ['#ffffff', '#e3e3e3', '#c9c9c9', '#898989', '#5f5f5f', '#494949', '#383838', '#0f0f0f'];\n        this.backgroundColorPicker = AddColorPicker (backgroundColorInput, settings.backgroundColor, predefinedBackgroundColors, (color) => {\n            settings.backgroundColor = color;\n            callbacks.onBackgroundColorChange ();\n        });\n\n        let edgeParameterDiv = AddDiv (this.contentDiv, 'ov_sidebar_parameter');\n        this.edgeDisplayToggle = AddToggle (edgeParameterDiv, 'ov_sidebar_parameter_toggle');\n        AddDiv (edgeParameterDiv, 'ov_sidebar_parameter_text', 'Show Edges');\n\n        this.edgeSettingsDiv = AddDiv (this.contentDiv, 'ov_sidebar_settings_padded');\n        this.edgeDisplayToggle.OnChange (() => {\n            ShowDomElement (this.edgeSettingsDiv, this.edgeDisplayToggle.GetStatus ());\n            settings.showEdges = this.edgeDisplayToggle.GetStatus ();\n            callbacks.onShowEdgesChange ();\n        });\n\n        let edgeColorRow = AddDiv (this.edgeSettingsDiv, 'ov_sidebar_settings_row');\n        let predefinedEdgeColors = ['#ffffff', '#e3e3e3', '#c9c9c9', '#898989', '#5f5f5f', '#494949', '#383838', '#0f0f0f'];\n\n        let edgeColorInput = AddDiv (edgeColorRow, 'ov_color_picker');\n        this.edgeColorPicker = AddColorPicker (edgeColorInput, settings.edgeColor, predefinedEdgeColors, (color) => {\n            settings.edgeColor = color;\n            callbacks.onEdgeColorChange ();\n        });\n        AddDiv (edgeColorRow, null, 'Edge Color');\n\n        let thresholdRow = AddDiv (this.edgeSettingsDiv, 'ov_sidebar_settings_row large');\n        this.thresholdSlider = AddRangeSlider (thresholdRow, 0, 90);\n        this.thresholdSlider.setAttribute ('title', 'Edge Angle Threshold');\n        this.thresholdSliderValue = AddDomElement (thresholdRow, 'span', 'ov_slider_label');\n        this.thresholdSlider.addEventListener ('input', () => {\n            this.thresholdSliderValue.innerHTML = this.thresholdSlider.value;\n        });\n        this. thresholdSlider.addEventListener ('change', () => {\n            settings.edgeThreshold = this.thresholdSlider.value;\n            callbacks.onEdgeThresholdChange ();\n        });\n        this.thresholdSlider.value = settings.edgeThreshold;\n        this.thresholdSliderValue.innerHTML = settings.edgeThreshold;\n\n        this.edgeDisplayToggle.SetStatus (settings.showEdges);\n        ShowDomElement (this.edgeSettingsDiv, settings.showEdges);\n    }\n\n    UpdateVisibility (isPhysicallyBased)\n    {\n        if (this.environmentMapButton !== null) {\n            ShowDomElement (this.environmentMapButton, isPhysicallyBased);\n        }\n    }\n\n    Update (settings)\n    {\n        if (this.backgroundColorPicker !== null) {\n            this.backgroundColorPicker.setColor ('#' + ColorToHexString (settings.backgroundColor));\n        }\n\n        if (this.edgeDisplayToggle !== null) {\n            this.edgeDisplayToggle.SetStatus (settings.showEdges);\n            ShowDomElement (this.edgeSettingsDiv, settings.showEdges);\n\n            this.edgeColorPicker.setColor ('#' + ColorToHexString (settings.edgeColor));\n            this.thresholdSlider.value = settings.edgeThreshold;\n            this.thresholdSliderValue.innerHTML = settings.edgeThreshold;\n        }\n    }\n\n    Clear ()\n    {\n        if (this.environmentMapPopup !== null) {\n            this.environmentMapPopup.Close ();\n            this.environmentMapPopup = null;\n        }\n\n        if (this.backgroundColorPicker !== null) {\n            this.backgroundColorPicker.hide ();\n        }\n\n        if (this.edgeColorPicker !== null) {\n            this.edgeColorPicker.hide ();\n        }\n    }\n}\n\nclass SettingsImportParametersSection extends SettingsSection\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv, 'Import Settings');\n        this.defaultColorPicker = null;\n    }\n\n    Init (settings, callbacks)\n    {\n        let defaultColorDiv = AddDiv (this.contentDiv, 'ov_sidebar_parameter');\n        let defaultColorInput = AddDiv (defaultColorDiv, 'ov_color_picker');\n        AddDiv (defaultColorDiv, null, 'Default Color');\n        let predefinedDefaultColors = ['#ffffff', '#e3e3e3', '#cc3333', '#fac832', '#4caf50', '#3393bd', '#9b27b0', '#fda4b8'];\n        this.defaultColorPicker = AddColorPicker (defaultColorInput, settings.defaultColor, predefinedDefaultColors, (color) => {\n            settings.defaultColor = color;\n            callbacks.onDefaultColorChange ();\n        });\n    }\n\n    Update (settings)\n    {\n        if (this.defaultColorPicker !== null) {\n            this.defaultColorPicker.setColor ('#' + ColorToHexString (settings.defaultColor));\n        }\n    }\n\n    UpdateVisibility (hasDefaultMaterial)\n    {\n        if (this.contentDiv !== null) {\n            ShowDomElement (this.contentDiv, hasDefaultMaterial);\n        }\n    }\n\n    Clear ()\n    {\n        if (this.defaultColorPicker !== null) {\n            this.defaultColorPicker.hide ();\n        }\n    }\n}\n\nclass SettingsAppearanceSection extends SettingsSection\n{\n    constructor (parentDiv)\n    {\n        super (parentDiv, 'Appearance');\n        this.darkModeToggle = null;\n    }\n\n    Init (settings, callbacks)\n    {\n        let darkModeParameterDiv = AddDiv (this.contentDiv, 'ov_sidebar_parameter');\n\n        this.darkModeToggle = AddToggle (darkModeParameterDiv, 'ov_sidebar_parameter_toggle');\n        this.darkModeToggle.OnChange (() => {\n            settings.themeId = (this.darkModeToggle.GetStatus () ? Theme.Dark : Theme.Light);\n            callbacks.onThemeChange ();\n        });\n        AddDiv (darkModeParameterDiv, null, 'Dark Mode');\n\n        let isDarkMode = (settings.themeId === Theme.Dark);\n        this.darkModeToggle.SetStatus (isDarkMode);\n    }\n\n    Update (settings)\n    {\n        if (this.darkModeToggle !== null) {\n            let isDarkMode = (settings.themeId === Theme.Dark);\n            this.darkModeToggle.SetStatus (isDarkMode);\n        }\n    }\n}\n\nexport class SidebarSettingsPanel extends SidebarPanel\n{\n    constructor (parentDiv, settings)\n    {\n        super (parentDiv);\n        this.settings = settings;\n\n        this.sectionsDiv = AddDiv (this.contentDiv, 'ov_sidebar_settings_sections ov_thin_scrollbar');\n        this.modelDisplaySection = new SettingsModelDisplaySection (this.sectionsDiv);\n        this.importParametersSection = new SettingsImportParametersSection (this.sectionsDiv);\n        this.appearanceSection = new SettingsAppearanceSection (this.sectionsDiv);\n\n        this.resetToDefaultsButton = AddDiv (this.contentDiv, 'ov_button ov_panel_button outline', 'Reset to Default');\n        this.resetToDefaultsButton.addEventListener ('click', () => {\n            this.ResetToDefaults ();\n        });\n    }\n\n    GetName ()\n    {\n        return 'Settings';\n    }\n\n    HasTitle ()\n    {\n        return false;\n    }\n\n    GetIcon ()\n    {\n        return 'settings';\n    }\n\n    Clear ()\n    {\n        this.modelDisplaySection.Clear ();\n        this.importParametersSection.Clear ();\n        this.appearanceSection.Clear ();\n    }\n\n    Init (callbacks)\n    {\n        super.Init (callbacks);\n        this.modelDisplaySection.Init (this.settings, {\n            onEnvironmentMapChange : () => {\n                callbacks.onEnvironmentMapChange ();\n            },\n            onBackgroundColorChange : () => {\n                callbacks.onBackgroundColorChange ();\n            },\n            onShowEdgesChange : () => {\n                callbacks.onEdgeDisplayChange ();\n            },\n            onEdgeColorChange : () => {\n                callbacks.onEdgeDisplayChange ();\n            },\n            onEdgeThresholdChange : () => {\n                callbacks.onEdgeDisplayChange ();\n            }\n        });\n        this.importParametersSection.Init (this.settings, {\n            onDefaultColorChange : () => {\n                callbacks.onDefaultColorChange ();\n            }\n        });\n        this.appearanceSection.Init (this.settings, {\n            onThemeChange : () => {\n                if (this.settings.themeId === Theme.Light) {\n                    this.settings.backgroundColor = new Color (255, 255, 255);\n                    this.settings.defaultColor = new Color (200, 200, 200);\n                } else if (this.settings.themeId === Theme.Dark) {\n                    this.settings.backgroundColor = new Color (42, 43, 46);\n                    this.settings.defaultColor = new Color (200, 200, 200);\n                }\n                this.modelDisplaySection.Update (this.settings);\n                this.importParametersSection.Update (this.settings);\n                callbacks.onThemeChange ();\n            }\n        });\n    }\n\n    UpdateSettings (isPhysicallyBased, hasDefaultMaterial)\n    {\n        this.modelDisplaySection.UpdateVisibility (isPhysicallyBased);\n        this.importParametersSection.UpdateVisibility (hasDefaultMaterial);\n        this.Resize ();\n    }\n\n    ResetToDefaults ()\n    {\n        let defaultSettings = new Settings ();\n\n        this.settings.environmentMapName = defaultSettings.environmentMapName;\n        this.settings.backgroundIsEnvMap = defaultSettings.backgroundIsEnvMap;\n        this.settings.backgroundColor = defaultSettings.backgroundColor;\n        this.settings.defaultColor = defaultSettings.defaultColor;\n        this.settings.showEdges = defaultSettings.showEdges;\n        this.settings.edgeColor = defaultSettings.edgeColor;\n        this.settings.edgeThreshold = defaultSettings.edgeThreshold;\n        this.settings.themeId = defaultSettings.themeId;\n\n        this.modelDisplaySection.Update (this.settings);\n        this.importParametersSection.Update (this.settings);\n        this.appearanceSection.Update (this.settings);\n\n        this.callbacks.onEnvironmentMapChange ();\n        this.callbacks.onThemeChange ();\n    }\n\n    Resize ()\n    {\n        let resetButtonHeight = this.resetToDefaultsButton.offsetHeight;\n        let height = this.parentDiv.offsetHeight;\n        SetDomElementOuterHeight (this.sectionsDiv, height - resetButtonHeight);\n    }\n}\n", "import { ShowDomElement, SetDomElementWidth, SetDomElementHeight, GetDomElementOuterWidth, SetDomElementOuterHeight } from '../engine/viewer/domutils.js';\nimport { PanelSet } from './panelset.js';\nimport { SidebarDetailsPanel } from './sidebardetailspanel.js';\nimport { SidebarSettingsPanel } from './sidebarsettingspanel.js';\nimport { InstallVerticalSplitter } from './utils.js';\n\nexport class Sidebar\n{\n    constructor (mainDiv, splitterDiv, settings)\n    {\n        this.mainDiv = mainDiv;\n        this.splitterDiv = splitterDiv;\n        this.panelSet = new PanelSet (mainDiv);\n\n        this.detailsPanel = new SidebarDetailsPanel (this.panelSet.GetContentDiv ());\n        this.settingsPanel = new SidebarSettingsPanel (this.panelSet.GetContentDiv (), settings);\n\n        this.panelSet.AddPanel (this.detailsPanel);\n        this.panelSet.AddPanel (this.settingsPanel);\n        this.panelSet.ShowPanel (this.detailsPanel);\n    }\n\n    IsPanelsVisible ()\n    {\n        return this.panelSet.IsPanelsVisible ();\n    }\n\n    ShowPanels (show)\n    {\n        this.panelSet.ShowPanels (show);\n    }\n\n    Init (callbacks)\n    {\n        this.callbacks = callbacks;\n\n        this.panelSet.Init ({\n            onResize : () => {\n                ShowDomElement (this.splitterDiv, this.panelSet.IsPanelsVisible ());\n                this.callbacks.onResize ();\n            },\n            onShowHidePanels : (show) => {\n                this.callbacks.onShowHidePanels (show);\n            }\n        });\n\n        this.settingsPanel.Init ({\n            onEnvironmentMapChange : () => {\n                this.callbacks.onEnvironmentMapChange ();\n            },\n            onBackgroundColorChange : () => {\n                this.callbacks.onBackgroundColorChange ();\n            },\n            onDefaultColorChange : () => {\n                this.callbacks.onDefaultColorChange ();\n            },\n            onEdgeDisplayChange : () => {\n                this.callbacks.onEdgeDisplayChange ();\n            },\n            onThemeChange : () => {\n                this.callbacks.onThemeChange ();\n            }\n        });\n\n        InstallVerticalSplitter (this.splitterDiv, this.mainDiv, true, () => {\n            this.callbacks.onResize ();\n        });\n    }\n\n    UpdateSettings (isPhysicallyBased, hasDefaultMaterial)\n    {\n        this.settingsPanel.UpdateSettings (isPhysicallyBased, hasDefaultMaterial);\n    }\n\n    Resize (height)\n    {\n        SetDomElementOuterHeight (this.mainDiv, height);\n        SetDomElementHeight (this.splitterDiv, height);\n        this.panelSet.Resize ();\n    }\n\n    GetWidth ()\n    {\n        let sidebarWidth = GetDomElementOuterWidth (this.mainDiv);\n        let splitterWidth = 0;\n        if (this.panelSet.IsPanelsVisible ()) {\n             splitterWidth = this.splitterDiv.offsetWidth;\n        }\n        return sidebarWidth + splitterWidth;\n    }\n\n    DecreaseWidth (diff)\n    {\n        let oldWidth = this.mainDiv.offsetWidth;\n        SetDomElementWidth (this.mainDiv, oldWidth - diff);\n    }\n\n    Clear ()\n    {\n        this.panelSet.Clear ();\n    }\n\n    AddObject3DProperties (object3D)\n    {\n        this.detailsPanel.AddObject3DProperties (object3D);\n    }\n\n    AddMaterialProperties (material)\n    {\n        this.detailsPanel.AddMaterialProperties (material);\n    }\n}\n", "import { Theme } from './settings.js';\n\nexport class ThemeHandler\n{\n    constructor () {\n        this.css = {\n            '--ov_foreground_color': {},\n            '--ov_background_color': {},\n            '--ov_button_color': {},\n            '--ov_button_hover_color': {},\n            '--ov_button_text_color': {},\n            '--ov_outline_button_color': {},\n            '--ov_outline_button_hover_color': {},\n            '--ov_outline_button_text_color': {},\n            '--ov_icon_color': {},\n            '--ov_light_icon_color': {},\n            '--ov_selected_icon_color': {},\n            '--ov_disabled_icon_color': {},\n            '--ov_hover_color': {},\n            '--ov_hover_text_color': {},\n            '--ov_logo_text_color': {},\n            '--ov_logo_border_color': {},\n            '--ov_toolbar_background_color': {},\n            '--ov_toolbar_selected_color': {},\n            '--ov_toolbar_separator_color': {},\n            '--ov_treeview_selected_color': {},\n            '--ov_dialog_foreground_color': {},\n            '--ov_dialog_background_color': {},\n            '--ov_border_color': {},\n            '--ov_shadow': {}\n        };\n        let root = document.querySelector (':root');\n        let style = window.getComputedStyle (root);\n        for (let property in this.css) {\n            if (Object.prototype.hasOwnProperty.call (this.css, property)) {\n                this.css[property].light = style.getPropertyValue (property);\n                this.css[property].dark = style.getPropertyValue (property + '_dark');\n            }\n        }\n    }\n\n    SwitchTheme (themeId)\n    {\n        let themeName = null;\n        if (themeId === Theme.Light) {\n            themeName = 'light';\n        } else if (themeId === Theme.Dark) {\n            themeName = 'dark';\n        } else {\n            return;\n        }\n\n        let root = document.querySelector (':root');\n        for (let property in this.css) {\n            if (Object.prototype.hasOwnProperty.call (this.css, property)) {\n                let value = this.css[property][themeName];\n                if (value !== undefined) {\n                    root.style.setProperty (property, value);\n                }\n            }\n        }\n    }\n}\n", "import { AddDiv, CreateDiv } from '../engine/viewer/domutils.js';\nimport { AddSvgIconElement, InstallTooltip } from './utils.js';\n\nexport class ToolbarButton\n{\n    constructor (image, imageTitle, onClick)\n    {\n        this.image = image;\n        this.imageTitle = imageTitle;\n\n        this.selected = false;\n        this.buttonDiv = CreateDiv ('ov_toolbar_button');\n        this.buttonImg = AddSvgIconElement (this.buttonDiv, this.image);\n        if (onClick !== null) {\n            this.buttonDiv.addEventListener ('click', onClick);\n        }\n\n        this.buttonDiv.setAttribute ('alt', this.imageTitle);\n        InstallTooltip (this.buttonDiv, this.imageTitle);\n    }\n\n    AddDomElements (parentDiv)\n    {\n        parentDiv.appendChild (this.buttonDiv);\n    }\n\n    AddClass (className)\n    {\n        this.buttonDiv.classList.add (className);\n    }\n\n    RemoveClass (className)\n    {\n        this.buttonDiv.classList.remove (className);\n    }\n\n    AddImageClass (className)\n    {\n        this.buttonImg.classList.add (className);\n    }\n\n    RemoveImageClass (className)\n    {\n        this.buttonImg.classList.remove (className);\n    }\n\n    IsSelected ()\n    {\n        return this.selected;\n    }\n\n    SetSelected (selected)\n    {\n        this.selected = selected;\n        if (this.selected) {\n            this.buttonDiv.classList.add ('selected');\n        } else {\n            this.buttonDiv.classList.remove ('selected');\n        }\n    }\n}\n\nexport class Toolbar\n{\n    constructor (parentDiv)\n    {\n        this.mainDiv = AddDiv (parentDiv, 'ov_toolbar');\n    }\n\n    AddImageButton (image, imageTitle, onClick)\n    {\n        let button = new ToolbarButton (image, imageTitle, onClick);\n        button.AddDomElements (this.mainDiv);\n        return button;\n    }\n\n    AddImagePushButton (image, imageTitle, isSelected, onClick)\n    {\n        let button = new ToolbarButton (image, imageTitle, () => {\n            button.SetSelected (!button.IsSelected ());\n            onClick (button.IsSelected ());\n        });\n        button.AddDomElements (this.mainDiv);\n        button.SetSelected (isSelected);\n        return button;\n    }\n\n    AddImageRadioButton (buttonData, selectedIndex, onClick)\n    {\n        let buttons = [];\n        for (let buttonIndex = 0; buttonIndex < buttonData.length; buttonIndex++) {\n            let data = buttonData[buttonIndex];\n            let button = this.AddImageButton (data.image, data.title, () => {\n                for (let i = 0; i < buttons.length; i++) {\n                    let currentButton = buttons[i];\n                    if (i === buttonIndex) {\n                        currentButton.SetSelected (true);\n                    } else {\n                        currentButton.SetSelected (false);\n                    }\n                }\n                onClick (buttonIndex);\n            });\n            if (selectedIndex === buttonIndex) {\n                button.SetSelected (true);\n            }\n            buttons.push (button);\n        }\n        return buttons;\n    }\n\n    AddSeparator ()\n    {\n        return AddDiv (this.mainDiv, 'ov_toolbar_separator');\n    }\n}\n", "import { Coord2D, CoordIsEqual2D } from '../geometry/coord2d.js';\nimport { CoordIsEqual3D } from '../geometry/coord3d.js';\nimport { Color, ColorIsEqual } from './color.js';\n\nexport class MeshPrimitiveBuffer\n{\n    constructor ()\n    {\n        this.indices = [];\n        this.vertices = [];\n        this.colors = [];\n        this.normals = [];\n        this.uvs = [];\n        this.material = null;\n    }\n\n    GetBounds ()\n    {\n        let min = [Infinity, Infinity, Infinity];\n        let max = [-Infinity, -Infinity, -Infinity];\n        for (let i = 0; i < this.vertices.length / 3; i++) {\n            for (let j = 0; j < 3; j++) {\n                min[j] = Math.min (min[j], this.vertices[i * 3 + j]);\n                max[j] = Math.max (max[j], this.vertices[i * 3 + j]);\n            }\n        }\n        return {\n            min : min,\n            max : max\n        };\n    }\n\n    GetByteLength (indexTypeSize, numberTypeSize)\n    {\n        let indexCount = this.indices.length;\n        let numberCount = this.vertices.length + this.colors.length + this.normals.length + this.uvs.length;\n        return indexCount * indexTypeSize + numberCount * numberTypeSize;\n    }\n}\n\nexport class MeshBuffer\n{\n    constructor ()\n    {\n        this.primitives = [];\n    }\n\n    PrimitiveCount ()\n    {\n        return this.primitives.length;\n    }\n\n    GetPrimitive (index)\n    {\n        return this.primitives[index];\n    }\n\n    GetByteLength (indexTypeSize, numberTypeSize)\n    {\n        let byteLength = 0;\n        for (let i = 0; i < this.primitives.length; i++) {\n            let primitive = this.primitives[i];\n            byteLength += primitive.GetByteLength (indexTypeSize, numberTypeSize);\n        }\n        return byteLength;\n    }\n}\n\nexport function ConvertMeshToMeshBuffer (mesh)\n{\n    function AddVertexToPrimitiveBuffer (mesh, indices, primitiveBuffer, meshVertexToPrimitiveVertices)\n    {\n        function GetColorOrDefault (mesh, colorIndex, forceColors)\n        {\n            if (colorIndex !== null) {\n                return mesh.GetVertexColor (colorIndex);\n            } else if (forceColors) {\n                return new Color (0, 0, 0);\n            } else {\n                return null;\n            }\n        }\n\n        function GetUVOrDefault (mesh, uvIndex, forceUVs)\n        {\n            if (uvIndex !== null) {\n                return mesh.GetTextureUV (uvIndex);\n            } else if (forceUVs) {\n                return new Coord2D (0.0, 0.0);\n            } else {\n                return null;\n            }\n        }\n\n        function AddVertex (mesh, indices, primitiveBuffer)\n        {\n            let forceColors = mesh.VertexColorCount () > 0;\n            let forceUVs = mesh.TextureUVCount () > 0;\n\n            let vertex = mesh.GetVertex (indices.vertex);\n            let normal = mesh.GetNormal (indices.normal);\n\n            let primitiveVertexIndex = primitiveBuffer.vertices.length / 3;\n            primitiveBuffer.indices.push (primitiveVertexIndex);\n            primitiveBuffer.vertices.push (vertex.x, vertex.y, vertex.z);\n\n            let color = GetColorOrDefault (mesh, indices.color, forceColors);\n            if (color !== null) {\n                primitiveBuffer.colors.push (color.r / 255.0, color.g / 255.0, color.b / 255.0);\n            }\n\n            primitiveBuffer.normals.push (normal.x, normal.y, normal.z);\n\n            let uv = GetUVOrDefault (mesh, indices.uv, forceUVs);\n            if (uv !== null) {\n                primitiveBuffer.uvs.push (uv.x, uv.y);\n            }\n\n            return {\n                index : primitiveVertexIndex,\n                color : color,\n                normal : normal,\n                uv : uv\n            };\n        }\n\n        function FindMatchingPrimitiveVertex (mesh, primitiveVertices, indices)\n        {\n            function IsEqualColor (mesh, colorIndex, existingColor)\n            {\n                if (existingColor === null && colorIndex === null) {\n                    return true;\n                }\n                let color = GetColorOrDefault (mesh, colorIndex, true);\n                return ColorIsEqual (existingColor, color);\n            }\n\n            function IsEqualNormal (mesh, normalIndex, existingNormal)\n            {\n                let normal = mesh.GetNormal (normalIndex);\n                return CoordIsEqual3D (existingNormal, normal);\n            }\n\n            function IsEqualUV (mesh, uvIndex, existingUv)\n            {\n                if (existingUv === null && uvIndex === null) {\n                    return true;\n                }\n                let uv = GetUVOrDefault (mesh, uvIndex, true);\n                return CoordIsEqual2D (existingUv, uv);\n            }\n\n            for (let i = 0; i < primitiveVertices.length; i++) {\n                let primitiveVertex = primitiveVertices[i];\n                let equalColor = IsEqualColor (mesh, indices.color, primitiveVertex.color);\n                let equalNormal = IsEqualNormal (mesh, indices.normal, primitiveVertex.normal);\n                let equalUv = IsEqualUV (mesh, indices.uv, primitiveVertex.uv);\n                if (equalColor && equalNormal && equalUv) {\n                    return primitiveVertex;\n                }\n            }\n            return null;\n        }\n\n        if (meshVertexToPrimitiveVertices.has (indices.vertex)) {\n            let primitiveVertices = meshVertexToPrimitiveVertices.get (indices.vertex);\n            let existingPrimitiveVertex = FindMatchingPrimitiveVertex (mesh, primitiveVertices, indices);\n            if (existingPrimitiveVertex !== null) {\n                primitiveBuffer.indices.push (existingPrimitiveVertex.index);\n            } else {\n                let primitiveVertex = AddVertex (mesh, indices, primitiveBuffer);\n                primitiveVertices.push (primitiveVertex);\n            }\n        } else {\n            let primitiveVertex = AddVertex (mesh, indices, primitiveBuffer);\n            meshVertexToPrimitiveVertices.set (indices.vertex, [primitiveVertex]);\n        }\n    }\n\n    let meshBuffer = new MeshBuffer ();\n\n    let triangleCount = mesh.TriangleCount ();\n    if (triangleCount === 0) {\n        return null;\n    }\n\n    let triangleIndices = [];\n    for (let i = 0; i < triangleCount; i++) {\n        triangleIndices.push (i);\n    }\n    triangleIndices.sort ((a, b) => {\n        let aTriangle = mesh.GetTriangle (a);\n        let bTriangle = mesh.GetTriangle (b);\n        return aTriangle.mat - bTriangle.mat;\n    });\n\n    let primitiveBuffer = null;\n    let meshVertexToPrimitiveVertices = null;\n    for (let i = 0; i < triangleIndices.length; i++) {\n        let triangleIndex = triangleIndices[i];\n        let triangle = mesh.GetTriangle (triangleIndex);\n        if (primitiveBuffer === null || primitiveBuffer.material !== triangle.mat) {\n            primitiveBuffer = new MeshPrimitiveBuffer ();\n            primitiveBuffer.material = triangle.mat;\n            meshVertexToPrimitiveVertices = new Map ();\n            meshBuffer.primitives.push (primitiveBuffer);\n        }\n        let v0Indices = {\n            vertex : triangle.v0,\n            color : triangle.c0,\n            normal : triangle.n0,\n            uv : triangle.u0\n        };\n        let v1Indices = {\n            vertex : triangle.v1,\n            color : triangle.c1,\n            normal : triangle.n1,\n            uv : triangle.u1\n        };\n        let v2Indices = {\n            vertex : triangle.v2,\n            color : triangle.c2,\n            normal : triangle.n2,\n            uv : triangle.u2\n        };\n\n        AddVertexToPrimitiveBuffer (mesh, v0Indices, primitiveBuffer, meshVertexToPrimitiveVertices);\n        AddVertexToPrimitiveBuffer (mesh, v1Indices, primitiveBuffer, meshVertexToPrimitiveVertices);\n        AddVertexToPrimitiveBuffer (mesh, v2Indices, primitiveBuffer, meshVertexToPrimitiveVertices);\n    }\n\n    return meshBuffer;\n}\n", "import { ArrayBufferToUtf8String, Utf8StringToArrayBuffer } from '../io/bufferutils.js';\n\nexport class ExportedFile\n{\n\tconstructor (name)\n\t{\n\t\tthis.name = name;\n\t\tthis.content = null;\n\t}\n\n\tGetName ()\n\t{\n\t\treturn this.name;\n\t}\n\n\tSetName (name)\n\t{\n\t\tthis.name = name;\n\t}\n\n\tGetTextContent ()\n\t{\n\t\tlet text = ArrayBufferToUtf8String (this.content);\n\t\treturn text;\n\t}\n\n\tGetBufferContent ()\n\t{\n\t\treturn this.content;\n\t}\n\n\tSetTextContent (content)\n\t{\n\t\tlet buffer = Utf8StringToArrayBuffer (content);\n\t\tthis.content = buffer;\n\t}\n\n\tSetBufferContent (content)\n\t{\n\t\tthis.content = content;\n\t}\n}\n\nexport class ExporterBase\n{\n    constructor ()\n    {\n\n    }\n\n    CanExport (format, extension)\n    {\n        return false;\n    }\n\n\tExport (exporterModel, format, onFinish)\n\t{\n\t\tlet files = [];\n\t\tthis.ExportContent (exporterModel, format, files, () => {\n\t\t\tonFinish (files);\n\t\t});\n\t}\n\n\tExportContent (exporterModel, format, files, onFinish)\n\t{\n\n\t}\n\n\tGetExportedMaterialName (originalName)\n\t{\n\t\treturn this.GetExportedName (originalName, 'Material');\n\t}\n\n\tGetExportedMeshName (originalName)\n\t{\n\t\treturn this.GetExportedName (originalName, 'Mesh');\n\t}\n\n\tGetExportedName (originalName, defaultName)\n\t{\n\t\tif (originalName.length === 0) {\n\t\t\treturn defaultName;\n\t\t}\n\t\treturn originalName;\n\t}\n}\n", "import { LoadExternalLibrary } from '../io/externallibs.js';\nimport { FileFormat } from '../io/fileutils.js';\nimport { MaterialType } from '../model/material.js';\nimport { ConvertMeshToMeshBuffer } from '../model/meshbuffer.js';\nimport { ExportedFile, ExporterBase } from './exporterbase.js';\n\nexport class Exporter3dm extends ExporterBase\n{\n\tconstructor ()\n\t{\n\t\tsuper ();\n        this.rhino = null;\n\t}\n\n    CanExport (format, extension)\n    {\n        return format === FileFormat.Binary && extension === '3dm';\n    }\n\n\tExportContent (exporterModel, format, files, onFinish)\n\t{\n\t\tif (this.rhino === null) {\n\t\t\tLoadExternalLibrary ('loaders/rhino3dm.min.js').then (() => {\n                rhino3dm ().then ((rhino) => {\n                    this.rhino = rhino;\n                    this.ExportRhinoContent (exporterModel, files, onFinish);\n                });\n            }).catch (() => {\n                onFinish ();\n            });\n\t\t} else {\n\t\t\tthis.ExportRhinoContent (exporterModel, files, onFinish);\n\t\t}\n\t}\n\n    ExportRhinoContent (exporterModel, files, onFinish)\n    {\n        function ColorToRhinoColor (color)\n        {\n            return {\n                r : color.r,\n                g : color.g,\n                b : color.b,\n                a : 255\n            };\n        }\n\n\t\tlet rhinoFile = new ExportedFile ('model.3dm');\n\t\tfiles.push (rhinoFile);\n\n        let rhinoDoc = new this.rhino.File3dm ();\n        exporterModel.EnumerateTransformedMeshes ((mesh) => {\n            let meshBuffer = ConvertMeshToMeshBuffer (mesh);\n            for (let primitiveIndex = 0; primitiveIndex < meshBuffer.PrimitiveCount (); primitiveIndex++) {\n                let primitive = meshBuffer.GetPrimitive (primitiveIndex);\n                let threeJson = {\n                    data : {\n                        attributes : {\n                            position : {\n                                itemSize : 3,\n                                type : 'Float32Array',\n                                array : primitive.vertices\n                            },\n                            normal : {\n                                itemSize : 3,\n                                type : 'Float32Array',\n                                array : primitive.normals\n                            }\n                        },\n                        index : {\n                            type : 'Uint16Array',\n                            array : primitive.indices\n                        }\n                    }\n                };\n\n                let material = exporterModel.GetMaterial (primitive.material);\n                let rhinoMaterial = new this.rhino.Material ();\n                rhinoMaterial.name = this.GetExportedMaterialName (material.name);\n                if (material.type === MaterialType.Phong) {\n                    rhinoMaterial.ambientColor = ColorToRhinoColor (material.ambient);\n                    rhinoMaterial.specularColor = ColorToRhinoColor (material.specular);\n                }\n                rhinoMaterial.diffuseColor = ColorToRhinoColor (material.color);\n                rhinoMaterial.transparency = 1.0 - material.opacity;\n\n                let rhinoMaterialIndex = rhinoDoc.materials ().count ();\n                rhinoDoc.materials ().add (rhinoMaterial);\n\n                let rhinoMesh = new this.rhino.Mesh.createFromThreejsJSON (threeJson);\n                let rhinoAttributes = new this.rhino.ObjectAttributes ();\n                rhinoAttributes.name = this.GetExportedMeshName (mesh.GetName ());\n                rhinoAttributes.materialSource = this.rhino.ObjectMaterialSource.MaterialFromObject;\n                rhinoAttributes.materialIndex = rhinoMaterialIndex;\n                rhinoDoc.objects ().add (rhinoMesh, rhinoAttributes);\n            }\n        });\n\n        let writeOptions = new this.rhino.File3dmWriteOptions ();\n        writeOptions.version = 6;\n        let rhinoDocBuffer = rhinoDoc.toByteArray (writeOptions);\n\n        rhinoFile.SetBufferContent (rhinoDocBuffer);\n\t\tonFinish ();\n    }\n}\n", "export class BinaryWriter\n{\n    constructor (byteLength, isLittleEndian)\n    {\n        this.arrayBuffer = new ArrayBuffer (byteLength);\n        this.dataView = new DataView (this.arrayBuffer);\n        this.isLittleEndian = isLittleEndian;\n        this.position = 0;\n    }\n\n    GetPosition ()\n    {\n        return this.position;\n    }\n\n    SetPosition (position)\n    {\n        this.position = position;\n    }\n\n    End ()\n    {\n        return this.position >= this.arrayBuffer.byteLength;\n    }\n\n    GetBuffer ()\n    {\n        return this.arrayBuffer;\n    }\n\n    WriteArrayBuffer (arrayBuffer)\n    {\n        let bufferView = new Uint8Array (arrayBuffer);\n        let thisBufferView = new Uint8Array (this.arrayBuffer);\n        thisBufferView.set (bufferView, this.position);\n        this.position += arrayBuffer.byteLength;\n    }\n\n    WriteBoolean8 (val)\n    {\n        this.dataView.setInt8 (this.position, val ? 1 : 0);\n        this.position = this.position + 1;\n    }\n\n    WriteCharacter8 (val)\n    {\n        this.dataView.setInt8 (this.position, val);\n        this.position = this.position + 1;\n    }\n\n    WriteUnsignedCharacter8 (val)\n    {\n        this.dataView.setUint8 (this.position, val);\n        this.position = this.position + 1;\n    }\n\n    WriteInteger16 (val)\n    {\n        this.dataView.setInt16 (this.position, val, this.isLittleEndian);\n        this.position = this.position + 2;\n    }\n\n    WriteUnsignedInteger16 (val)\n    {\n        this.dataView.setUint16 (this.position, val, this.isLittleEndian);\n        this.position = this.position + 2;\n    }\n\n    WriteInteger32 (val)\n    {\n        this.dataView.setInt32 (this.position, val, this.isLittleEndian);\n        this.position = this.position + 4;\n    }\n\n    WriteUnsignedInteger32 (val)\n    {\n        this.dataView.setUint32 (this.position, val, this.isLittleEndian);\n        this.position = this.position + 4;\n    }\n\n    WriteFloat32 (val)\n    {\n        this.dataView.setFloat32 (this.position, val, this.isLittleEndian);\n        this.position = this.position + 4;\n    }\n\n    WriteDouble64 (val)\n    {\n        this.dataView.setFloat64 (this.position, val, this.isLittleEndian);\n        this.position = this.position + 8;\n    }\n}\n", "import { BinaryWriter } from '../io/binarywriter.js';\nimport { Utf8StringToArrayBuffer } from '../io/bufferutils.js';\nimport { FileFormat, GetFileExtension, GetFileName } from '../io/fileutils.js';\nimport { Color, SRGBToLinear } from '../model/color.js';\nimport { MaterialType } from '../model/material.js';\nimport { ConvertMeshToMeshBuffer } from '../model/meshbuffer.js';\nimport { ExportedFile, ExporterBase } from './exporterbase.js';\n\nexport class ExporterGltf extends ExporterBase\n{\n\tconstructor ()\n\t{\n\t\tsuper ();\n        this.components = {\n            index : {\n                type : 5125, // unsigned int 32\n                size : 4\n            },\n            number : {\n                type : 5126, // float 32\n                size : 4\n            }\n        };\n\t}\n\n    CanExport (format, extension)\n    {\n        return (format === FileFormat.Text && extension === 'gltf') || (format === FileFormat.Binary && extension === 'glb');\n    }\n\n\tExportContent (exporterModel, format, files, onFinish)\n\t{\n        if (format === FileFormat.Text) {\n            this.ExportAsciiContent (exporterModel, files);\n        } else if (format === FileFormat.Binary) {\n            this.ExportBinaryContent (exporterModel, files);\n        }\n        onFinish ();\n\t}\n\n\tExportAsciiContent (exporterModel, files)\n\t{\n        let gltfFile = new ExportedFile ('model.gltf');\n        let binFile = new ExportedFile ('model.bin');\n        files.push (gltfFile);\n        files.push (binFile);\n\n        let meshDataArr = this.GetMeshData (exporterModel);\n        let mainBuffer = this.GetMainBuffer (meshDataArr);\n        let mainJson = this.GetMainJson (meshDataArr);\n        mainJson.buffers.push ({\n            uri : binFile.GetName (),\n            byteLength : mainBuffer.byteLength\n        });\n\n        let fileNameToIndex = new Map ();\n        this.ExportMaterials (exporterModel, mainJson, (texture) => {\n            let fileName = GetFileName (texture.name);\n            if (fileNameToIndex.has (fileName)) {\n                return fileNameToIndex.get (fileName);\n            } else {\n                let textureFile = new ExportedFile (fileName);\n                textureFile.SetBufferContent (texture.buffer);\n                files.push (textureFile);\n\n                let textureIndex = mainJson.textures.length;\n                fileNameToIndex.set (fileName, textureIndex);\n\n                mainJson.images.push ({\n                    uri : fileName\n                });\n\n                mainJson.textures.push ({\n                    source : textureIndex\n                });\n\n                return textureIndex;\n            }\n        });\n\n        gltfFile.SetTextContent (JSON.stringify (mainJson, null, 4));\n        binFile.SetBufferContent (mainBuffer);\n    }\n\n    ExportBinaryContent (exporterModel, files)\n    {\n        function AlignToBoundary (size)\n        {\n            let remainder = size % 4;\n            if (remainder === 0) {\n                return size;\n            }\n            return size + (4 - remainder);\n        }\n\n        function WriteCharacters (writer, char, count)\n        {\n            for (let i = 0; i < count; i++) {\n                writer.WriteUnsignedCharacter8 (char);\n            }\n        }\n\n        let glbFile = new ExportedFile ('model.glb');\n        files.push (glbFile);\n\n        let meshDataArr = this.GetMeshData (exporterModel);\n        let mainBuffer = this.GetMainBuffer (meshDataArr);\n        let mainJson = this.GetMainJson (meshDataArr);\n\n        let textureBuffers = [];\n        let textureOffset = mainBuffer.byteLength;\n\n        let fileNameToIndex = new Map ();\n        this.ExportMaterials (exporterModel, mainJson, (texture) => {\n            let fileName = GetFileName (texture.name);\n            let extension = GetFileExtension (texture.name);\n            if (fileNameToIndex.has (fileName)) {\n                return fileNameToIndex.get (fileName);\n            } else {\n                let bufferViewIndex = mainJson.bufferViews.length;\n                let textureIndex = mainJson.textures.length;\n                fileNameToIndex.set (fileName, textureIndex);\n                let textureBuffer = texture.buffer;\n                textureBuffers.push (textureBuffer);\n                mainJson.bufferViews.push ({\n                    buffer : 0,\n                    byteOffset : textureOffset,\n                    byteLength : textureBuffer.byteLength\n                });\n                textureOffset += textureBuffer.byteLength;\n                mainJson.images.push ({\n                    bufferView : bufferViewIndex,\n                    mimeType : 'image/' + extension\n                });\n                mainJson.textures.push ({\n                    source : textureIndex\n                });\n\n                return textureIndex;\n            }\n        });\n\n        let mainBinaryBufferLength = mainBuffer.byteLength;\n        for (let i = 0; i < textureBuffers.length; i++) {\n            let textureBuffer = textureBuffers[i];\n            mainBinaryBufferLength += textureBuffer.byteLength;\n        }\n        let mainBinaryBufferAlignedLength = AlignToBoundary (mainBinaryBufferLength);\n        mainJson.buffers.push ({\n            byteLength : mainBinaryBufferAlignedLength\n        });\n\n        let mainJsonString = JSON.stringify (mainJson);\n        let mainJsonBuffer = Utf8StringToArrayBuffer (mainJsonString);\n        let mainJsonBufferLength = mainJsonBuffer.byteLength;\n        let mainJsonBufferAlignedLength = AlignToBoundary (mainJsonBufferLength);\n\n        let glbSize = 12 + 8 + mainJsonBufferAlignedLength + 8 + mainBinaryBufferAlignedLength;\n        let glbWriter = new BinaryWriter (glbSize, true);\n\n        glbWriter.WriteUnsignedInteger32 (0x46546C67);\n        glbWriter.WriteUnsignedInteger32 (2);\n        glbWriter.WriteUnsignedInteger32 (glbSize);\n\n        glbWriter.WriteUnsignedInteger32 (mainJsonBufferAlignedLength);\n        glbWriter.WriteUnsignedInteger32 (0x4E4F534A);\n        glbWriter.WriteArrayBuffer (mainJsonBuffer);\n        WriteCharacters (glbWriter, 32, mainJsonBufferAlignedLength - mainJsonBufferLength);\n\n        glbWriter.WriteUnsignedInteger32 (mainBinaryBufferAlignedLength);\n        glbWriter.WriteUnsignedInteger32 (0x004E4942);\n        glbWriter.WriteArrayBuffer (mainBuffer);\n\n        for (let i = 0; i < textureBuffers.length; i++) {\n            let textureBuffer = textureBuffers[i];\n            glbWriter.WriteArrayBuffer (textureBuffer);\n        }\n        WriteCharacters (glbWriter, 0, mainBinaryBufferAlignedLength - mainBinaryBufferLength);\n\n        glbFile.SetBufferContent (glbWriter.GetBuffer ());\n    }\n\n    GetMeshData (exporterModel)\n    {\n        let meshDataArr = [];\n\n        exporterModel.EnumerateTransformedMeshes ((mesh) => {\n            let buffer = ConvertMeshToMeshBuffer (mesh);\n            meshDataArr.push ({\n                name : mesh.GetName (),\n                buffer : buffer,\n                offsets : [],\n                sizes : []\n            });\n        });\n\n        return meshDataArr;\n    }\n\n    GetMainBuffer (meshDataArr)\n    {\n        let mainBufferSize = 0;\n        for (let meshIndex = 0; meshIndex < meshDataArr.length; meshIndex++) {\n            let meshData = meshDataArr[meshIndex];\n            mainBufferSize += meshData.buffer.GetByteLength (this.components.index.size, this.components.number.size);\n        }\n\n        let writer = new BinaryWriter (mainBufferSize, true);\n        for (let meshIndex = 0; meshIndex < meshDataArr.length; meshIndex++) {\n            let meshData = meshDataArr[meshIndex];\n            for (let primitiveIndex = 0; primitiveIndex < meshData.buffer.PrimitiveCount (); primitiveIndex++) {\n                let primitive = meshData.buffer.GetPrimitive (primitiveIndex);\n                let offset = writer.GetPosition ();\n                for (let i = 0; i < primitive.indices.length; i++) {\n                    writer.WriteUnsignedInteger32 (primitive.indices[i]);\n                }\n                for (let i = 0; i < primitive.vertices.length; i++) {\n                    writer.WriteFloat32 (primitive.vertices[i]);\n                }\n                for (let i = 0; i < primitive.colors.length; i++) {\n                    writer.WriteFloat32 (SRGBToLinear (primitive.colors[i]));\n                }\n                for (let i = 0; i < primitive.normals.length; i++) {\n                    writer.WriteFloat32 (primitive.normals[i]);\n                }\n                for (let i = 0; i < primitive.uvs.length; i++) {\n                    let texCoord = primitive.uvs[i];\n                    if (i % 2 === 1) {\n                        texCoord *= -1.0;\n                    }\n                    writer.WriteFloat32 (texCoord);\n                }\n                meshData.offsets.push (offset);\n                meshData.sizes.push (writer.GetPosition () - offset);\n            }\n        }\n\n        return writer.GetBuffer ();\n    }\n\n    GetMainJson (meshDataArr)\n    {\n        class BufferViewCreator\n        {\n            constructor (mainJson, byteOffset)\n            {\n                this.mainJson = mainJson;\n                this.byteOffset = byteOffset;\n            }\n\n            AddBufferView (byteLength)\n            {\n                this.mainJson.bufferViews.push ({\n                    buffer : 0,\n                    byteOffset : this.byteOffset,\n                    byteLength : byteLength,\n                });\n                this.byteOffset += byteLength;\n                return this.mainJson.bufferViews.length - 1;\n            }\n        }\n\n        let mainJson = {\n            asset : {\n                generator : 'https://3dviewer.net',\n                version : '2.0'\n            },\n            scene : 0,\n            scenes : [\n                {\n                    nodes : []\n                }\n            ],\n            nodes : [],\n            materials : [],\n            meshes : [],\n            buffers : [],\n            bufferViews : [],\n            accessors : []\n        };\n\n        for (let meshIndex = 0; meshIndex < meshDataArr.length; meshIndex++) {\n            let meshData = meshDataArr[meshIndex];\n            mainJson.scenes[0].nodes.push (meshIndex);\n            mainJson.nodes.push ({\n                mesh : meshIndex\n            });\n            let jsonMesh = {\n                name : this.GetExportedMeshName (meshData.name),\n                primitives : []\n            };\n\n            let primitives = meshData.buffer.primitives;\n            for (let primitiveIndex = 0; primitiveIndex < primitives.length; primitiveIndex++) {\n                let primitive = primitives[primitiveIndex];\n\n                let bufferViewCreator = new BufferViewCreator (mainJson, meshData.offsets[primitiveIndex]);\n                let indicesBufferView = bufferViewCreator.AddBufferView (primitive.indices.length * this.components.index.size);\n                let verticesBufferView = bufferViewCreator.AddBufferView (primitive.vertices.length * this.components.number.size);\n                let colorsBufferView = null;\n                if (primitive.colors.length > 0) {\n                    colorsBufferView = bufferViewCreator.AddBufferView (primitive.colors.length * this.components.number.size);\n                }\n                let normalsBufferView = bufferViewCreator.AddBufferView (primitive.normals.length * this.components.number.size);\n                let uvsBufferView = null;\n                if (primitive.uvs.length > 0) {\n                    uvsBufferView = bufferViewCreator.AddBufferView (primitive.uvs.length * this.components.number.size);\n                }\n\n                let jsonPrimitive = {\n                    attributes : {},\n                    mode : 4,\n                    material : primitive.material\n                };\n\n                let bounds = primitive.GetBounds ();\n\n                mainJson.accessors.push ({\n                    bufferView : indicesBufferView,\n                    byteOffset : 0,\n                    componentType : this.components.index.type,\n                    count : primitive.indices.length,\n                    type : 'SCALAR'\n                });\n                jsonPrimitive.indices = mainJson.accessors.length - 1;\n\n                mainJson.accessors.push ({\n                    bufferView : verticesBufferView,\n                    byteOffset : 0,\n                    componentType : this.components.number.type,\n                    count : primitive.vertices.length / 3,\n                    min : bounds.min,\n                    max : bounds.max,\n                    type : 'VEC3'\n                });\n                jsonPrimitive.attributes.POSITION = mainJson.accessors.length - 1;\n\n                if (colorsBufferView !== null) {\n                    mainJson.accessors.push ({\n                        bufferView : colorsBufferView,\n                        byteOffset : 0,\n                        componentType : this.components.number.type,\n                        count : primitive.colors.length / 3,\n                        type : 'VEC3'\n                    });\n                    jsonPrimitive.attributes.COLOR_0 = mainJson.accessors.length - 1;\n                }\n\n                mainJson.accessors.push ({\n                    bufferView : normalsBufferView,\n                    byteOffset : 0,\n                    componentType : this.components.number.type,\n                    count : primitive.normals.length / 3,\n                    type : 'VEC3'\n                });\n                jsonPrimitive.attributes.NORMAL = mainJson.accessors.length - 1;\n\n                if (uvsBufferView !== null) {\n                    mainJson.accessors.push ({\n                        bufferView : uvsBufferView,\n                        byteOffset : 0,\n                        componentType : this.components.number.type,\n                        count : primitive.uvs.length / 2,\n                        type : 'VEC2'\n                    });\n                    jsonPrimitive.attributes.TEXCOORD_0 = mainJson.accessors.length - 1;\n                }\n\n                jsonMesh.primitives.push (jsonPrimitive);\n            }\n            mainJson.meshes.push (jsonMesh);\n        }\n\n        return mainJson;\n    }\n\n    ExportMaterials (exporterModel, mainJson, addTexture)\n    {\n        function ExportMaterial (obj, mainJson, material, addTexture)\n        {\n            function ColorToRGBA (color, opacity)\n            {\n                return [\n                    SRGBToLinear (color.r / 255.0),\n                    SRGBToLinear (color.g / 255.0),\n                    SRGBToLinear (color.b / 255.0),\n                    opacity\n                ];\n            }\n\n            function ColorToRGB (color)\n            {\n                return [\n                    SRGBToLinear (color.r / 255.0),\n                    SRGBToLinear (color.g / 255.0),\n                    SRGBToLinear (color.b / 255.0)\n                ];\n            }\n\n            function GetTextureParams (mainJson, texture, addTexture)\n            {\n                if (texture === null || !texture.IsValid ()) {\n                    return null;\n                }\n\n                if (mainJson.images === undefined) {\n                    mainJson.images = [];\n                }\n                if (mainJson.textures === undefined) {\n                    mainJson.textures = [];\n                }\n\n                let textureIndex = addTexture (texture);\n                let textureParams = {\n                    index : textureIndex\n                };\n\n                if (texture.HasTransformation ()) {\n                    let extensionName = 'KHR_texture_transform';\n                    if (mainJson.extensionsUsed === undefined) {\n                        mainJson.extensionsUsed = [];\n                    }\n                    if (mainJson.extensionsUsed.indexOf (extensionName) === -1) {\n                        mainJson.extensionsUsed.push (extensionName);\n                    }\n                    textureParams.extensions = {\n                        KHR_texture_transform : {\n                            offset : [texture.offset.x, -texture.offset.y],\n                            scale : [texture.scale.x, texture.scale.y],\n                            rotation : -texture.rotation\n                        }\n                    };\n                }\n\n                return textureParams;\n            }\n\n            let jsonMaterial = {\n                name : obj.GetExportedMaterialName (material.name),\n                pbrMetallicRoughness : {\n                    baseColorFactor : ColorToRGBA (material.color, material.opacity)\n                },\n                emissiveFactor : ColorToRGB (material.emissive),\n                doubleSided : true,\n                alphaMode : 'OPAQUE'\n            };\n\n            if (material.transparent) {\n                // TODO: mask, alphaCutoff?\n                jsonMaterial.alphaMode = 'BLEND';\n            }\n\n            let baseColorTexture = GetTextureParams (mainJson, material.diffuseMap, addTexture);\n            if (baseColorTexture !== null) {\n                if (!material.multiplyDiffuseMap) {\n                    jsonMaterial.pbrMetallicRoughness.baseColorFactor = ColorToRGBA (new Color (255, 255, 255), material.opacity);\n                }\n                jsonMaterial.pbrMetallicRoughness.baseColorTexture = baseColorTexture;\n            }\n            if (material.type === MaterialType.Physical) {\n                let metallicTexture = GetTextureParams (mainJson, material.metalnessMap, addTexture);\n                if (metallicTexture !== null) {\n                    jsonMaterial.pbrMetallicRoughness.metallicRoughnessTexture = metallicTexture;\n                } else {\n                    jsonMaterial.pbrMetallicRoughness.metallicFactor = material.metalness;\n                    jsonMaterial.pbrMetallicRoughness.roughnessFactor = material.roughness;\n                }\n            }\n            let normalTexture = GetTextureParams (mainJson, material.normalMap, addTexture);\n            if (normalTexture !== null) {\n                jsonMaterial.normalTexture = normalTexture;\n            }\n            let emissiveTexture = GetTextureParams (mainJson, material.emissiveMap, addTexture);\n            if (emissiveTexture !== null) {\n                jsonMaterial.emissiveTexture = emissiveTexture;\n            }\n\n            mainJson.materials.push (jsonMaterial);\n        }\n\n        for (let materialIndex = 0; materialIndex < exporterModel.MaterialCount (); materialIndex++) {\n            let material = exporterModel.GetMaterial (materialIndex);\n            ExportMaterial (this, mainJson, material, addTexture);\n        }\n    }\n}\n", "import { CopyObjectAttributes } from '../core/core.js';\nimport { Transformation } from '../geometry/transformation.js';\nimport { CalculateTriangleNormal, TransformMesh } from '../model/meshutils.js';\n\nexport class ExporterSettings\n{\n    constructor (settings)\n    {\n        this.transformation = new Transformation ();\n        this.isMeshVisible = (meshInstanceId) => {\n            return true;\n        };\n\n        CopyObjectAttributes (settings, this);\n    }\n}\n\nexport class ExporterModel\n{\n    constructor (model, settings)\n    {\n        this.model = model;\n        this.settings = settings || new ExporterSettings ();\n    }\n\n    MaterialCount ()\n    {\n        return this.model.MaterialCount ();\n    }\n\n    GetMaterial (index)\n    {\n        return this.model.GetMaterial (index);\n    }\n\n    VertexCount ()\n    {\n        let vertexCount = 0;\n        this.EnumerateMeshInstances ((meshInstance) => {\n            vertexCount += meshInstance.VertexCount ();\n        });\n        return vertexCount;\n    }\n\n    TriangleCount ()\n    {\n        let triangleCount = 0;\n        this.EnumerateMeshInstances ((meshInstance) => {\n            triangleCount += meshInstance.TriangleCount ();\n        });\n        return triangleCount;\n    }\n\n    MeshInstanceCount ()\n    {\n        let meshInstanceCount = 0;\n        this.EnumerateMeshInstances ((meshInstance) => {\n            meshInstanceCount += 1;\n        });\n        return meshInstanceCount;\n    }\n\n    EnumerateMeshInstances (onMeshInstance)\n    {\n        this.model.EnumerateMeshInstances ((meshInstance) => {\n            if (this.settings.isMeshVisible (meshInstance.GetId ())) {\n                onMeshInstance (meshInstance);\n            }\n        });\n    }\n\n    EnumerateTransformedMeshes (onMesh)\n    {\n        this.EnumerateMeshInstances ((meshInstance) => {\n            let transformation = meshInstance.GetTransformation ();\n            if (!this.settings.transformation.IsIdentity ()) {\n                transformation.Append (this.settings.transformation);\n            }\n\n            let mesh = meshInstance.GetMesh ();\n            let transformed = mesh.Clone ();\n            if (!transformation.IsIdentity ()) {\n                TransformMesh (transformed, transformation);\n            }\n\n            onMesh (transformed);\n        });\n    }\n\n    EnumerateVerticesAndTriangles (callbacks)\n    {\n        let transformedMeshes = [];\n        this.EnumerateTransformedMeshes ((mesh) => {\n            transformedMeshes.push (mesh);\n        });\n\n        for (let mesh of transformedMeshes) {\n            mesh.EnumerateVertices ((vertex) => {\n                callbacks.onVertex (vertex.x, vertex.y, vertex.z);\n            });\n        }\n\n        let vertexOffset = 0;\n        for (let mesh of transformedMeshes) {\n            mesh.EnumerateTriangleVertexIndices ((v0, v1, v2) => {\n                callbacks.onTriangle (v0 + vertexOffset, v1 + vertexOffset, v2 + vertexOffset);\n            });\n            vertexOffset += mesh.VertexCount ();\n        }\n    }\n\n    EnumerateTrianglesWithNormals (onTriangle)\n    {\n        this.EnumerateTransformedMeshes ((mesh) => {\n            mesh.EnumerateTriangleVertices ((v0, v1, v2) => {\n                let normal = CalculateTriangleNormal (v0, v1, v2);\n                onTriangle (v0, v1, v2, normal);\n            });\n        });\n    }\n}\n", "export class TextWriter\n{\n\tconstructor ()\n\t{\n\t\tthis.text = '';\n\t\tthis.indentation = 0;\n\t}\n\n\tGetText ()\n\t{\n\t\treturn this.text;\n\t}\n\n\tIndent (diff)\n\t{\n\t\tthis.indentation += diff;\n\t}\n\n\tWriteArrayLine (arr)\n\t{\n\t\tthis.WriteLine (arr.join (' '));\n\t}\n\n\tWriteLine (str)\n\t{\n\t\tthis.WriteIndentation ();\n\t\tthis.Write (str + '\\n');\n\t}\n\n\tWriteIndentation ()\n\t{\n\t\tfor (let i = 0; i < this.indentation; i++) {\n\t\t\tthis.Write ('  ');\n\t\t}\n\t}\n\n\tWrite (str)\n\t{\n\t\tthis.text += str;\n\t}\n}\n", "import { FileFormat, GetFileName } from '../io/fileutils.js';\nimport { TextWriter } from '../io/textwriter.js';\nimport { MaterialType } from '../model/material.js';\nimport { ExportedFile, ExporterBase } from './exporterbase.js';\n\nexport class ExporterObj extends ExporterBase\n{\n    constructor ()\n    {\n        super ();\n    }\n\n    CanExport (format, extension)\n    {\n        return format === FileFormat.Text && extension === 'obj';\n    }\n\n    ExportContent (exporterModel, format, files, onFinish)\n    {\n        function WriteTexture (mtlWriter, keyword, texture, files)\n        {\n            if (texture === null || !texture.IsValid ()) {\n                return;\n            }\n            let fileName = GetFileName (texture.name);\n            mtlWriter.WriteArrayLine ([keyword, fileName]);\n\n            let fileIndex = files.findIndex ((file) => {\n                return file.GetName () === fileName;\n            });\n            if (fileIndex === -1) {\n                let textureFile = new ExportedFile (fileName);\n                textureFile.SetBufferContent (texture.buffer);\n                files.push (textureFile);\n            }\n        }\n\n        let mtlFile = new ExportedFile ('model.mtl');\n        let objFile = new ExportedFile ('model.obj');\n\n        files.push (mtlFile);\n        files.push (objFile);\n\n        let mtlWriter = new TextWriter ();\n        mtlWriter.WriteLine (this.GetHeaderText ());\n        for (let materialIndex = 0; materialIndex < exporterModel.MaterialCount (); materialIndex++) {\n            let material = exporterModel.GetMaterial (materialIndex);\n            mtlWriter.WriteArrayLine (['newmtl', this.GetExportedMaterialName (material.name)]);\n            mtlWriter.WriteArrayLine (['Kd', material.color.r / 255.0, material.color.g / 255.0, material.color.b / 255.0]);\n            mtlWriter.WriteArrayLine (['d', material.opacity]);\n            if (material.type === MaterialType.Phong) {\n                mtlWriter.WriteArrayLine (['Ka', material.ambient.r / 255.0, material.ambient.g / 255.0, material.ambient.b / 255.0]);\n                mtlWriter.WriteArrayLine (['Ks', material.specular.r / 255.0, material.specular.g / 255.0, material.specular.b / 255.0]);\n                mtlWriter.WriteArrayLine (['Ns', material.shininess * 1000.0]);\n            }\n            WriteTexture (mtlWriter, 'map_Kd', material.diffuseMap, files);\n            if (material.type === MaterialType.Phong) {\n                WriteTexture (mtlWriter, 'map_Ks', material.specularMap, files);\n            }\n            WriteTexture (mtlWriter, 'bump', material.bumpMap, files);\n        }\n        mtlFile.SetTextContent (mtlWriter.GetText ());\n\n        let objWriter = new TextWriter ();\n        objWriter.WriteLine (this.GetHeaderText ());\n        objWriter.WriteArrayLine (['mtllib', mtlFile.GetName ()]);\n        let vertexOffset = 0;\n        let normalOffset = 0;\n        let uvOffset = 0;\n        let usedMaterialName = null;\n        exporterModel.EnumerateTransformedMeshes ((mesh) => {\n            objWriter.WriteArrayLine (['g', this.GetExportedMeshName (mesh.GetName ())]);\n            for (let vertexIndex = 0; vertexIndex < mesh.VertexCount (); vertexIndex++) {\n                let vertex = mesh.GetVertex (vertexIndex);\n                objWriter.WriteArrayLine (['v', vertex.x, vertex.y, vertex.z]);\n            }\n            for (let normalIndex = 0; normalIndex < mesh.NormalCount (); normalIndex++) {\n                let normal = mesh.GetNormal (normalIndex);\n                objWriter.WriteArrayLine (['vn', normal.x, normal.y, normal.z]);\n            }\n            for (let textureUVIndex = 0; textureUVIndex < mesh.TextureUVCount (); textureUVIndex++) {\n                let uv = mesh.GetTextureUV (textureUVIndex);\n                objWriter.WriteArrayLine (['vt', uv.x, uv.y]);\n            }\n            for (let triangleIndex = 0; triangleIndex < mesh.TriangleCount (); triangleIndex++) {\n                let triangle = mesh.GetTriangle (triangleIndex);\n                let v0 = triangle.v0 + vertexOffset + 1;\n                let v1 = triangle.v1 + vertexOffset + 1;\n                let v2 = triangle.v2 + vertexOffset + 1;\n                let n0 = triangle.n0 + normalOffset + 1;\n                let n1 = triangle.n1 + normalOffset + 1;\n                let n2 = triangle.n2 + normalOffset + 1;\n                if (triangle.mat !== null) {\n                    let material = exporterModel.GetMaterial (triangle.mat);\n                    let materialName = this.GetExportedMaterialName (material.name);\n                    if (materialName !== usedMaterialName) {\n                        objWriter.WriteArrayLine (['usemtl', materialName]);\n                        usedMaterialName = materialName;\n                    }\n                }\n                let u0 = '';\n                let u1 = '';\n                let u2 = '';\n                if (triangle.HasTextureUVs ()) {\n                    u0 = triangle.u0 + uvOffset + 1;\n                    u1 = triangle.u1 + uvOffset + 1;\n                    u2 = triangle.u2 + uvOffset + 1;\n                }\n                objWriter.WriteArrayLine (['f', [v0, u0, n0].join ('/'), [v1, u1, n1].join ('/'), [v2, u2, n2].join ('/')]);\n            }\n            vertexOffset += mesh.VertexCount ();\n            normalOffset += mesh.NormalCount ();\n            uvOffset += mesh.TextureUVCount ();\n        });\n\n        objFile.SetTextContent (objWriter.GetText ());\n        onFinish ();\n    }\n\n    GetHeaderText ()\n    {\n        return '# exported by https://3dviewer.net';\n    }\n}\n", "import { FileFormat } from '../io/fileutils.js';\nimport { TextWriter } from '../io/textwriter.js';\nimport { ExportedFile, ExporterBase } from './exporterbase.js';\n\nexport class ExporterOff extends ExporterBase\n{\n\tconstructor ()\n\t{\n\t\tsuper ();\n\t}\n\n    CanExport (format, extension)\n    {\n        return format === FileFormat.Text && extension === 'off';\n    }\n\n\tExportContent (exporterModel, format, files, onFinish)\n\t{\n\t\tlet offFile = new ExportedFile ('model.off');\n\t\tfiles.push (offFile);\n\n\t\tlet offWriter = new TextWriter ();\n\t\toffWriter.WriteLine ('OFF');\n\t\toffWriter.WriteArrayLine ([exporterModel.VertexCount (), exporterModel.TriangleCount (), 0]);\n\n\t\texporterModel.EnumerateVerticesAndTriangles ({\n\t\t\tonVertex : function (x, y, z) {\n\t\t\t\toffWriter.WriteArrayLine ([x, y, z]);\n\t\t\t},\n\t\t\tonTriangle : function (v0, v1, v2) {\n\t\t\t\toffWriter.WriteArrayLine ([3, v0, v1, v2]);\n\t\t\t}\n\t\t});\n\n\t\toffFile.SetTextContent (offWriter.GetText ());\n\t\tonFinish ();\n\t}\n}\n", "import { BinaryWriter } from '../io/binarywriter.js';\nimport { FileFormat } from '../io/fileutils.js';\nimport { TextWriter } from '../io/textwriter.js';\nimport { ExportedFile, ExporterBase } from './exporterbase.js';\n\nexport class ExporterPly extends ExporterBase\n{\n\tconstructor ()\n\t{\n\t\tsuper ();\n\t}\n\n    CanExport (format, extension)\n    {\n        return (format === FileFormat.Text || format === FileFormat.Binary) && extension === 'ply';\n    }\n\n\tExportContent (exporterModel, format, files, onFinish)\n\t{\n\t\tif (format === FileFormat.Text) {\n\t\t\tthis.ExportText (exporterModel, files);\n\t\t} else {\n\t\t\tthis.ExportBinary (exporterModel, files);\n\t\t}\n\t\tonFinish ();\n\t}\n\n\tExportText (exporterModel, files)\n\t{\n\t\tlet plyFile = new ExportedFile ('model.ply');\n\t\tfiles.push (plyFile);\n\n\t\tlet plyWriter = new TextWriter ();\n\n\t\tlet vertexCount = exporterModel.VertexCount ();\n\t\tlet triangleCount = exporterModel.TriangleCount ();\n\t\tlet headerText = this.GetHeaderText ('ascii', vertexCount, triangleCount);\n\t\tplyWriter.Write (headerText);\n\n\t\texporterModel.EnumerateVerticesAndTriangles ({\n\t\t\tonVertex : function (x, y, z) {\n\t\t\t\tplyWriter.WriteArrayLine ([x, y, z]);\n\t\t\t},\n\t\t\tonTriangle : function (v0, v1, v2) {\n\t\t\t\tplyWriter.WriteArrayLine ([3, v0, v1, v2]);\n\t\t\t}\n\t\t});\n\n\t\tplyFile.SetTextContent (plyWriter.GetText ());\n\t}\n\n\tExportBinary (exporterModel, files)\n\t{\n\t\tlet plyFile = new ExportedFile ('model.ply');\n\t\tfiles.push (plyFile);\n\n\t\tlet vertexCount = exporterModel.VertexCount ();\n\t\tlet triangleCount = exporterModel.TriangleCount ();\n\t\tlet headerText = this.GetHeaderText ('binary_little_endian', vertexCount, triangleCount);\n\n\t\tlet fullByteLength = headerText.length + vertexCount * 3 * 4 + triangleCount * (1 + 3 * 4);\n\t\tlet plyWriter = new BinaryWriter (fullByteLength, true);\n\n\t\tfor (let i = 0; i < headerText.length; i++) {\n\t\t\tplyWriter.WriteUnsignedCharacter8 (headerText.charCodeAt (i));\n\t\t}\n\n\t\texporterModel.EnumerateVerticesAndTriangles ({\n\t\t\tonVertex : function (x, y, z) {\n\t\t\t\tplyWriter.WriteFloat32 (x);\n\t\t\t\tplyWriter.WriteFloat32 (y);\n\t\t\t\tplyWriter.WriteFloat32 (z);\n\t\t\t},\n\t\t\tonTriangle : function (v0, v1, v2) {\n\t\t\t\tplyWriter.WriteUnsignedCharacter8 (3);\n\t\t\t\tplyWriter.WriteInteger32 (v0);\n\t\t\t\tplyWriter.WriteInteger32 (v1);\n\t\t\t\tplyWriter.WriteInteger32 (v2);\n\t\t\t}\n\t\t});\n\n\t\tplyFile.SetBufferContent (plyWriter.GetBuffer ());\n\t}\n\n\tGetHeaderText (format, vertexCount, triangleCount)\n\t{\n\t\tlet headerWriter = new TextWriter ();\n\t\theaderWriter.WriteLine ('ply');\n\t\theaderWriter.WriteLine ('format ' + format + ' 1.0');\n\t\theaderWriter.WriteLine ('element vertex ' + vertexCount);\n\t\theaderWriter.WriteLine ('property float x');\n\t\theaderWriter.WriteLine ('property float y');\n\t\theaderWriter.WriteLine ('property float z');\n\t\theaderWriter.WriteLine ('element face ' + triangleCount);\n\t\theaderWriter.WriteLine ('property list uchar int vertex_index');\n\t\theaderWriter.WriteLine ('end_header');\n\t\treturn headerWriter.GetText ();\n\t}\n}\n", "import { BinaryWriter } from '../io/binarywriter.js';\nimport { FileFormat } from '../io/fileutils.js';\nimport { TextWriter } from '../io/textwriter.js';\nimport { ExportedFile, ExporterBase } from './exporterbase.js';\n\nexport class ExporterStl extends ExporterBase\n{\n\tconstructor ()\n\t{\n\t\tsuper ();\n\t}\n\n    CanExport (format, extension)\n    {\n        return (format === FileFormat.Text || format === FileFormat.Binary) && extension === 'stl';\n    }\n\n\tExportContent (exporterModel, format, files, onFinish)\n\t{\n\t\tif (format === FileFormat.Text) {\n\t\t\tthis.ExportText (exporterModel, files);\n\t\t} else {\n\t\t\tthis.ExportBinary (exporterModel, files);\n\t\t}\n\t\tonFinish ();\n\t}\n\n\tExportText (exporterModel, files)\n\t{\n\t\tlet stlFile = new ExportedFile ('model.stl');\n\t\tfiles.push (stlFile);\n\n\t\tlet stlWriter = new TextWriter ();\n\t\tstlWriter.WriteLine ('solid Model');\n\t\texporterModel.EnumerateTrianglesWithNormals ((v0, v1, v2, normal) => {\n\t\t\tstlWriter.WriteArrayLine (['facet', 'normal', normal.x, normal.y, normal.z]);\n\t\t\tstlWriter.Indent (1);\n\t\t\tstlWriter.WriteLine ('outer loop');\n\t\t\tstlWriter.Indent (1);\n\t\t\tstlWriter.WriteArrayLine (['vertex', v0.x, v0.y, v0.z]);\n\t\t\tstlWriter.WriteArrayLine (['vertex', v1.x, v1.y, v1.z]);\n\t\t\tstlWriter.WriteArrayLine (['vertex', v2.x, v2.y, v2.z]);\n\t\t\tstlWriter.Indent (-1);\n\t\t\tstlWriter.WriteLine ('endloop');\n\t\t\tstlWriter.Indent (-1);\n\t\t\tstlWriter.WriteLine ('endfacet');\n\t\t});\n\t\tstlWriter.WriteLine ('endsolid Model');\n\n\t\tstlFile.SetTextContent (stlWriter.GetText ());\n\t}\n\n\tExportBinary (exporterModel, files)\n\t{\n\t\tlet stlFile = new ExportedFile ('model.stl');\n\t\tfiles.push (stlFile);\n\n\t\tlet triangleCount = exporterModel.TriangleCount ();\n\t\tlet headerSize = 80;\n\t\tlet fullByteLength = headerSize + 4 + triangleCount * 50;\n\t\tlet stlWriter = new BinaryWriter (fullByteLength, true);\n\n\t\tfor (let i = 0; i < headerSize; i++) {\n\t\t\tstlWriter.WriteUnsignedCharacter8 (0);\n\t\t}\n\n\t\tstlWriter.WriteUnsignedInteger32 (triangleCount);\n\t\texporterModel.EnumerateTrianglesWithNormals ((v0, v1, v2, normal) => {\n\t\t\tstlWriter.WriteFloat32 (normal.x);\n\t\t\tstlWriter.WriteFloat32 (normal.y);\n\t\t\tstlWriter.WriteFloat32 (normal.z);\n\n\t\t\tstlWriter.WriteFloat32 (v0.x);\n\t\t\tstlWriter.WriteFloat32 (v0.y);\n\t\t\tstlWriter.WriteFloat32 (v0.z);\n\n\t\t\tstlWriter.WriteFloat32 (v1.x);\n\t\t\tstlWriter.WriteFloat32 (v1.y);\n\t\t\tstlWriter.WriteFloat32 (v1.z);\n\n\t\t\tstlWriter.WriteFloat32 (v2.x);\n\t\t\tstlWriter.WriteFloat32 (v2.y);\n\t\t\tstlWriter.WriteFloat32 (v2.z);\n\n\t\t\tstlWriter.WriteUnsignedInteger16 (0);\n\t\t});\n\n\t\tstlFile.SetBufferContent (stlWriter.GetBuffer ());\n\t}\n}\n", "import { Exporter3dm } from './exporter3dm.js';\nimport { ExporterGltf } from './exportergltf.js';\nimport { ExporterModel } from './exportermodel.js';\nimport { ExporterObj } from './exporterobj.js';\nimport { ExporterOff } from './exporteroff.js';\nimport { ExporterPly } from './exporterply.js';\nimport { ExporterStl } from './exporterstl.js';\n\nexport class Exporter\n{\n    constructor ()\n    {\n        this.exporters = [\n            new ExporterObj (),\n            new ExporterStl (),\n            new ExporterPly (),\n            new ExporterOff (),\n            new ExporterGltf (),\n            new Exporter3dm ()\n        ];\n    }\n\n    AddExporter (exporter)\n    {\n        this.exporters.push (exporter);\n    }\n\n    Export (model, settings, format, extension, callbacks)\n    {\n        let exporter = null;\n        for (let i = 0; i < this.exporters.length; i++) {\n            let currentExporter = this.exporters[i];\n            if (currentExporter.CanExport (format, extension)) {\n                exporter = currentExporter;\n                break;\n            }\n        }\n        if (exporter === null) {\n            callbacks.onError ();\n            return;\n        }\n\n        let exporterModel = new ExporterModel (model, settings);\n        exporter.Export (exporterModel, format, (files) => {\n            if (files.length === 0) {\n                callbacks.onError ();\n            } else {\n                callbacks.onSuccess (files);\n            }\n        });\n    }\n}\n", "import { RunTaskAsync } from '../engine/core/taskrunner.js';\nimport { Coord3D } from '../engine/geometry/coord3d.js';\nimport { Matrix } from '../engine/geometry/matrix.js';\nimport { FileFormat } from '../engine/io/fileutils.js';\nimport { LoadExternalLibrary } from '../engine/io/externallibs.js';\nimport { Exporter } from '../engine/export/exporter.js';\nimport { ExporterModel, ExporterSettings } from '../engine/export/exportermodel.js';\nimport { AddDiv, ClearDomElement } from '../engine/viewer/domutils.js';\nimport { AddSelect } from '../website/utils.js';\nimport { ButtonDialog, ProgressDialog } from './dialog.js';\nimport { ShowMessageDialog } from './dialogs.js';\nimport { DownloadArrayBufferAsFile } from './utils.js';\nimport { CookieGetStringVal, CookieSetStringVal } from './cookiehandler.js';\nimport { HandleEvent } from './eventhandler.js';\n\nclass ModelExporterUI\n{\n    constructor (name, format, extension)\n    {\n        this.name = name;\n        this.format = format;\n        this.extension = extension;\n        this.visibleOnlySelect = null;\n        this.rotationSelect = null;\n    }\n\n    GetName ()\n    {\n        return this.name;\n    }\n\n    GenerateParametersUI (parametersDiv)\n    {\n        function AddSelectItem (parametersDiv, name, values, defaultIndex)\n        {\n            let parameterRow = AddDiv (parametersDiv, 'ov_dialog_row');\n            AddDiv (parameterRow, 'ov_dialog_row_name', name);\n            let parameterValueDiv = AddDiv (parameterRow, 'ov_dialog_row_value');\n            return AddSelect (parameterValueDiv, values, defaultIndex);\n        }\n\n        this.visibleOnlySelect = AddSelectItem (parametersDiv, 'Scope', ['Entire Model', 'Visible Only'], 1);\n        this.rotationSelect = AddSelectItem (parametersDiv, 'Rotation', ['No Rotation', '-90 Degrees', '90 Degrees'], 0);\n    }\n\n    ExportModel (model, callbacks)\n    {\n        let settings = new ExporterSettings ();\n        if (this.visibleOnlySelect.selectedIndex === 1) {\n            settings.isMeshVisible = (meshInstanceId) => {\n                return callbacks.isMeshVisible (meshInstanceId);\n            };\n        }\n\n        if (this.rotationSelect.selectedIndex === 1) {\n            let matrix = new Matrix ().CreateRotationAxisAngle (new Coord3D (1.0, 0.0, 0.0), -Math.PI / 2.0);\n            settings.transformation.SetMatrix (matrix);\n        } else if (this.rotationSelect.selectedIndex === 2) {\n            let matrix = new Matrix ().CreateRotationAxisAngle (new Coord3D (1.0, 0.0, 0.0), Math.PI / 2.0);\n            settings.transformation.SetMatrix (matrix);\n        }\n\n        let exporterModel = new ExporterModel (model, settings);\n        if (exporterModel.MeshInstanceCount () === 0) {\n            ShowMessageDialog (\n                'Export Failed',\n                'The model doesn\\'t contain any meshes.',\n                null\n            );\n            return;\n        }\n\n        let progressDialog = new ProgressDialog ();\n        progressDialog.Init ('Exporting Model');\n        progressDialog.Open ();\n\n        RunTaskAsync (() => {\n            let exporter = new Exporter ();\n            exporter.Export (model, settings, this.format, this.extension, {\n                onError : () => {\n                    progressDialog.Close ();\n                },\n                onSuccess : (files) => {\n                    if (files.length === 0) {\n                        progressDialog.Close ();\n                    } else if (files.length === 1) {\n                        progressDialog.Close ();\n                        let file = files[0];\n                        DownloadArrayBufferAsFile (file.GetBufferContent (), file.GetName ());\n                    } else if (files.length > 1) {\n                        LoadExternalLibrary ('loaders/fflate.min.js').then (() => {\n                            let filesInZip = {};\n                            for (let file of files) {\n                                filesInZip[file.name] = new Uint8Array (file.content);\n                            }\n                            let zippedContent = fflate.zipSync (filesInZip);\n                            let zippedBuffer = zippedContent.buffer;\n                            progressDialog.Close ();\n                            DownloadArrayBufferAsFile (zippedBuffer, 'model.zip');\n                        }).catch (() => {\n                            progressDialog.Close ();\n                        });\n                    }\n                }\n            });\n        });\n    }\n}\n\nclass ExportDialog\n{\n    constructor (callbacks)\n    {\n        this.callbacks = callbacks;\n        this.selectedExporter = null;\n        this.parametersDiv = null;\n\n        this.exporters = [\n            new ModelExporterUI ('Wavefront (.obj)', FileFormat.Text, 'obj'),\n            new ModelExporterUI ('Stereolithography Text (.stl)', FileFormat.Text, 'stl'),\n            new ModelExporterUI ('Stereolithography Binary (.stl)', FileFormat.Binary, 'stl'),\n            new ModelExporterUI ('Polygon File Format Text (.ply)', FileFormat.Text, 'ply'),\n            new ModelExporterUI ('Polygon File Format Binary (.ply)', FileFormat.Binary, 'ply'),\n            new ModelExporterUI ('glTF Text (.gltf)', FileFormat.Text, 'gltf'),\n            new ModelExporterUI ('glTF Binary (.glb)', FileFormat.Binary, 'glb'),\n            new ModelExporterUI ('Object File Format Text (.off)', FileFormat.Text, 'off'),\n            new ModelExporterUI ('Rhinoceros 3D (.3dm)', FileFormat.Binary, '3dm')\n        ];\n    }\n\n    Open (model, viewer)\n    {\n        let mainDialog = new ButtonDialog ();\n        let contentDiv = mainDialog.Init ('Export', [\n            {\n                name : 'Close',\n                subClass : 'outline',\n                onClick () {\n                    mainDialog.Close ();\n                }\n            },\n            {\n                name : 'Export',\n                onClick : () => {\n                    mainDialog.Close ();\n                    this.ExportFormat (model, viewer);\n                }\n            }\n        ]);\n\n        let text = 'Select the format from the list below, and adjust the settings of the selected format.';\n        AddDiv (contentDiv, 'ov_dialog_section', text);\n\n        let formatRow = AddDiv (contentDiv, 'ov_dialog_row');\n        this.parametersDiv = AddDiv (contentDiv);\n        let formatNames = this.exporters.map (exporter => exporter.GetName ());\n        let defaultFormat = CookieGetStringVal ('ov_last_export_format', 'glTF Binary (.glb)');\n        let defaultFormatIndex = formatNames.indexOf (defaultFormat);\n        if (defaultFormatIndex === -1) {\n            defaultFormatIndex = 6;\n        }\n        AddSelect (formatRow, formatNames, defaultFormatIndex, (selectedIndex) => {\n            CookieSetStringVal ('ov_last_export_format', formatNames[selectedIndex]);\n            this.OnFormatSelected (selectedIndex);\n        });\n        this.OnFormatSelected (defaultFormatIndex);\n\n        mainDialog.Open ();\n    }\n\n    OnFormatSelected (selectedIndex)\n    {\n        ClearDomElement (this.parametersDiv);\n        this.selectedExporter = this.exporters[selectedIndex];\n        this.selectedExporter.GenerateParametersUI (this.parametersDiv);\n    }\n\n    ExportFormat (model, viewer)\n    {\n        this.selectedExporter.ExportModel (model, {\n            isMeshVisible : (meshInstanceId) => {\n                return this.callbacks.isMeshVisible (meshInstanceId);\n            }\n        });\n        HandleEvent ('model_exported', this.selectedExporter.GetName ());\n    }\n}\n\nexport function ShowExportDialog (model, viewer, callbacks)\n{\n    let exportDialog = new ExportDialog (callbacks);\n    exportDialog.Open (model, viewer);\n}\n", "import { AddDiv, CreateDomElement } from '../engine/viewer/domutils.js';\nimport { AddRadioButton } from '../website/utils.js';\nimport { ButtonDialog } from './dialog.js';\nimport { DownloadUrlAsFile } from './utils.js';\nimport { CookieGetStringVal, CookieSetStringVal } from './cookiehandler.js';\nimport { HandleEvent } from './eventhandler.js';\n\nexport function ShowSnapshotDialog (viewer)\n{\n    function AddSizeRadioButton (parentDiv, id, text, isSelected, onChange)\n    {\n        let line = AddDiv (parentDiv, 'ov_dialog_row');\n        AddRadioButton (line, id, 'snapshot_size', text, isSelected, onChange);\n    }\n\n    function GetImageUrl (viewer, snapshotSize)\n    {\n        if (snapshotSize.size === null) {\n            let size = viewer.GetImageSize ();\n            return viewer.GetImageAsDataUrl (size.width, size.height);\n        } else {\n            return viewer.GetImageAsDataUrl (snapshotSize.size[0], snapshotSize.size[1]);\n        }\n    }\n\n    function UpdatePreview (viewer, previewImage, snapshotSize)\n    {\n        let url = GetImageUrl (viewer, snapshotSize);\n        previewImage.src = url;\n    }\n\n    let selectedIndex = 0;\n    let sizes = [\n        {\n            name : 'Current size',\n            size : null\n        },\n        {\n            name : '1280 x 720',\n            size : [1280, 720]\n        },\n        {\n            name : '1920 x 1080',\n            size : [1920, 1080]\n        }\n    ];\n\n    let dialog = new ButtonDialog ();\n    let contentDiv = dialog.Init ('Create Snapshot', [\n        {\n            name : 'Cancel',\n            subClass : 'outline',\n            onClick () {\n                dialog.Close ();\n            }\n        },\n        {\n            name : 'Create',\n            onClick () {\n                dialog.Close ();\n                HandleEvent ('snapshot_created', sizes[selectedIndex].name);\n                let url = GetImageUrl (viewer, sizes[selectedIndex]);\n                DownloadUrlAsFile (url, 'model.png');\n            }\n        }\n    ]);\n\n    let optionsDiv = AddDiv (contentDiv, 'ov_snapshot_dialog_left');\n    let previewImage = CreateDomElement ('img', 'ov_snapshot_dialog_preview');\n\n    let lastSnapshotSizeName = CookieGetStringVal ('ov_last_snapshot_size', sizes[1].name);\n    for (let i = 0; i < sizes.length; i++) {\n        if (lastSnapshotSizeName === sizes[i].name) {\n            selectedIndex = i;\n            break;\n        }\n    }\n\n    for (let i = 0; i < sizes.length; i++) {\n        let size = sizes[i];\n        let selected = (i === selectedIndex);\n        AddSizeRadioButton (optionsDiv, 'snapshot_' + i.toString (), size.name, selected, () => {\n            selectedIndex = i;\n            CookieSetStringVal ('ov_last_snapshot_size', size.name);\n            UpdatePreview (viewer, previewImage, size);\n        });\n    }\n\n    contentDiv.appendChild (previewImage);\n    UpdatePreview (viewer, previewImage, sizes[selectedIndex]);\n\n    dialog.Open ();\n    return dialog;\n}\n", "import { ReadLines } from '../engine/import/importerutils.js';\nimport { AddDiv, CreateDomElement } from '../engine/viewer/domutils.js';\nimport { ButtonDialog } from './dialog.js';\n\nexport function ShowOpenUrlDialog (onOk)\n{\n    let dialog = new ButtonDialog ();\n    let urlsTextArea = CreateDomElement ('textarea', 'ov_dialog_textarea');\n    let contentDiv = dialog.Init ('Open Model from Url', [\n        {\n            name : 'Cancel',\n            subClass : 'outline',\n            onClick () {\n                dialog.Close ();\n            }\n        },\n        {\n            name : 'OK',\n            onClick () {\n                let urls = [];\n                ReadLines (urlsTextArea.value, (line) => {\n                    urls.push (line);\n                });\n                dialog.Close ();\n                onOk (urls);\n            }\n        }\n    ]);\n    let text = 'Here you can load models based on their urls. You can add more lines if your model builds up from multiple files.';\n    AddDiv (contentDiv, 'ov_dialog_section', text);\n    contentDiv.appendChild (urlsTextArea);\n    dialog.Open ();\n    urlsTextArea.focus ();\n    return dialog;\n}\n", "import { FileSource } from '../engine/io/fileutils.js';\nimport { AddDiv, AddDomElement } from '../engine/viewer/domutils.js';\nimport { AddCheckbox } from '../website/utils.js';\nimport { CreateUrlBuilder } from '../engine/parameters/parameterlist.js';\nimport { ShowMessageDialog } from './dialogs.js';\nimport { ButtonDialog } from './dialog.js';\nimport { CopyToClipboard } from './utils.js';\nimport { HandleEvent } from './eventhandler.js';\n\nexport function ShowSharingDialog (fileList, settings, camera)\n{\n    function AddCheckboxLine (parentDiv, text, id, onChange)\n    {\n        let line = AddDiv (parentDiv, 'ov_dialog_row');\n        let checkbox = AddCheckbox (line, id, text, true, () => {\n            onChange (checkbox.checked);\n        });\n    }\n\n    function AddCopyableTextInput (parentDiv, getText)\n    {\n        let copyText = 'Copy';\n        let copiedText = 'Copied';\n        let container = AddDiv (parentDiv, 'ov_dialog_copyable_input');\n        let input = AddDomElement (container, 'input', 'ov_dialog_text');\n        input.readOnly = true;\n        let button = AddDiv (container, 'ov_button outline ov_dialog_copyable_input_button', copyText);\n        button.addEventListener ('click', () => {\n            CopyToClipboard (getText ());\n            button.innerHTML = copiedText;\n            setTimeout (() => {\n                button.innerHTML = copyText;\n            }, 2000);\n        });\n        return input;\n    }\n\n    function AddSharingLinkTab (parentDiv, modelFiles)\n    {\n        function GetSharingLink (modelFiles)\n        {\n            let builder = CreateUrlBuilder ();\n            builder.AddModelUrls (modelFiles);\n            let hashParameters = builder.GetParameterList ();\n            return 'https://3dviewer.net#' + hashParameters;\n        }\n\n        let section = AddDiv (parentDiv, 'ov_dialog_section');\n        AddDiv (section, 'ov_dialog_inner_title', 'Sharing Link');\n        let sharingLinkInput = AddCopyableTextInput (section, () => {\n            HandleEvent ('model_shared', 'sharing_link');\n            return GetSharingLink (modelFiles);\n        });\n        sharingLinkInput.value = GetSharingLink (modelFiles);\n    }\n\n    function AddEmbeddingCodeTab (parentDiv, modelFiles, settings, camera)\n    {\n        function GetEmbeddingCode (modelFiles, useCurrentSettings, settings, camera)\n        {\n            let builder = CreateUrlBuilder ();\n            builder.AddModelUrls (modelFiles);\n            if (useCurrentSettings) {\n                builder.AddCamera (camera);\n                let environmentSettings = {\n                    environmentMapName : settings.environmentMapName,\n                    backgroundIsEnvMap : settings.backgroundIsEnvMap\n                };\n                builder.AddEnvironmentSettings (environmentSettings);\n                builder.AddBackgroundColor (settings.backgroundColor);\n                builder.AddDefaultColor (settings.defaultColor);\n                let edgeSettings = {\n                    showEdges : settings.showEdges,\n                    edgeColor : settings.edgeColor,\n                    edgeThreshold : settings.edgeThreshold\n                };\n                builder.AddEdgeSettings (edgeSettings);\n            }\n            let hashParameters = builder.GetParameterList ();\n\n            let embeddingCode = '';\n            embeddingCode += '<iframe';\n            embeddingCode += ' width=\"640\" height=\"480\"';\n            embeddingCode += ' style=\"border:1px solid #eeeeee;\"';\n            embeddingCode += ' src=\"https://3dviewer.net/embed.html#' + hashParameters + '\">';\n            embeddingCode += '</iframe>';\n            return embeddingCode;\n        }\n\n        let useCurrentSettings = true;\n        let section = AddDiv (parentDiv, 'ov_dialog_section');\n        section.style.marginTop = '20px';\n        AddDiv (section, 'ov_dialog_inner_title', 'Embedding Code');\n        let optionsSection = AddDiv (section, 'ov_dialog_section');\n        let embeddingCodeInput = AddCopyableTextInput (section, () => {\n            HandleEvent ('model_shared', 'embedding_code');\n            return GetEmbeddingCode (modelFiles, useCurrentSettings, settings, camera);\n        });\n        AddCheckboxLine (optionsSection, 'Use customized settings', 'embed_current_settings', (checked) => {\n            useCurrentSettings = checked;\n            embeddingCodeInput.value = GetEmbeddingCode (modelFiles, useCurrentSettings, settings, camera);\n        });\n\n        embeddingCodeInput.value = GetEmbeddingCode (modelFiles, useCurrentSettings, settings, camera);\n    }\n\n    if (!fileList.IsOnlyUrlSource ()) {\n        return ShowMessageDialog (\n            'Sharing Failed',\n            'Sharing works only if you load files by url. Please upload your model files to a web server, open them by url, and try embedding again.',\n            null\n        );\n    }\n\n    let files = fileList.GetFiles ();\n    let modelFiles = [];\n    for (let fileIndex = 0; fileIndex < files.length; fileIndex++) {\n        let file = files[fileIndex];\n        if (file.source === FileSource.Url) {\n            modelFiles.push (file.fileUrl);\n        }\n    }\n\n    let dialog = new ButtonDialog ();\n    let contentDiv = dialog.Init ('Share', [\n        {\n            name : 'Close',\n            onClick () {\n                dialog.Close ();\n            }\n        }\n    ]);\n\n    AddSharingLinkTab (contentDiv, modelFiles);\n    AddEmbeddingCodeTab (contentDiv, modelFiles, settings, camera);\n\n    dialog.Open ();\n    return dialog;\n}\n", "import { BigEps, IsEqualEps, RadDeg } from '../engine/geometry/geometry.js';\nimport { AddDiv, ClearDomElement } from '../engine/viewer/domutils.js';\nimport { AddSvgIconElement, IsDarkTextNeededForColor } from './utils.js';\n\nfunction GetFaceWorldNormal (intersection)\n{\n    let normalMatrix = new THREE.Matrix4 ();\n    intersection.object.updateWorldMatrix (true, false);\n    normalMatrix.extractRotation (intersection.object.matrixWorld);\n    let faceNormal = intersection.face.normal.clone ();\n    faceNormal.applyMatrix4 (normalMatrix);\n    return faceNormal;\n}\n\nfunction CreateMaterial ()\n{\n    return new THREE.LineBasicMaterial ({\n        color : 0x263238,\n        depthTest : false\n    });\n}\n\nfunction CreateLineFromPoints (points, material)\n{\n    let geometry = new THREE.BufferGeometry ().setFromPoints (points);\n    return new THREE.Line (geometry, material);\n}\n\nclass Marker\n{\n    constructor (intersection, radius)\n    {\n        this.intersection = null;\n        this.markerObject = new THREE.Object3D ();\n\n        let material = CreateMaterial ();\n        let circleCurve = new THREE.EllipseCurve (0.0, 0.0, radius, radius, 0.0, 2.0 * Math.PI, false, 0.0);\n        this.markerObject.add (CreateLineFromPoints (circleCurve.getPoints (50), material));\n        this.markerObject.add (CreateLineFromPoints ([new THREE.Vector3 (-radius, 0.0, 0.0), new THREE.Vector3 (radius, 0.0, 0.0)], material));\n        this.markerObject.add (CreateLineFromPoints ([new THREE.Vector3 (0.0, -radius, 0.0), new THREE.Vector3 (0.0, radius, 0.0)], material));\n\n        this.UpdatePosition (intersection);\n    }\n\n    UpdatePosition (intersection)\n    {\n        this.intersection = intersection;\n        let faceNormal = GetFaceWorldNormal (this.intersection);\n        this.markerObject.updateMatrixWorld (true);\n        this.markerObject.position.set (0.0, 0.0, 0.0);\n        this.markerObject.lookAt (faceNormal);\n        this.markerObject.position.set (this.intersection.point.x, this.intersection.point.y, this.intersection.point.z);\n    }\n\n    Show (show)\n    {\n        this.markerObject.visible = show;\n    }\n\n    GetIntersection ()\n    {\n        return this.intersection;\n    }\n\n    GetObject ()\n    {\n        return this.markerObject;\n    }\n}\n\nfunction CalculateMarkerValues (aMarker, bMarker)\n{\n    const aIntersection = aMarker.GetIntersection ();\n    const bIntersection = bMarker.GetIntersection ();\n    let result = {\n        pointsDistance : null,\n        parallelFacesDistance : null,\n        facesAngle : null\n    };\n\n    const aNormal = GetFaceWorldNormal (aIntersection);\n    const bNormal = GetFaceWorldNormal (bIntersection);\n    result.pointsDistance = aIntersection.point.distanceTo (bIntersection.point);\n    result.facesAngle = aNormal.angleTo (bNormal);\n    if (IsEqualEps (result.facesAngle, 0.0, BigEps) || IsEqualEps (result.facesAngle, Math.PI, BigEps)) {\n        let aPlane = new THREE.Plane ().setFromNormalAndCoplanarPoint (aNormal, aIntersection.point);\n        result.parallelFacesDistance = Math.abs (aPlane.distanceToPoint (bIntersection.point));\n    }\n    return result;\n}\n\nexport class MeasureTool\n{\n    constructor (viewer, settings)\n    {\n        this.viewer = viewer;\n        this.settings = settings;\n        this.isActive = false;\n        this.markers = [];\n        this.tempMarker = null;\n\n        this.panel = null;\n        this.button = null;\n    }\n\n    SetButton (button)\n    {\n        this.button = button;\n    }\n\n    IsActive ()\n    {\n        return this.isActive;\n    }\n\n    SetActive (isActive)\n    {\n        if (this.isActive === isActive) {\n            return;\n        }\n        this.isActive = isActive;\n        this.button.SetSelected (isActive);\n        if (this.isActive) {\n            this.panel = AddDiv (document.body, 'ov_measure_panel');\n            this.UpdatePanel ();\n            this.Resize ();\n        } else {\n            this.ClearMarkers ();\n            this.panel.remove ();\n        }\n    }\n\n    Click (mouseCoordinates)\n    {\n        let intersection = this.viewer.GetMeshIntersectionUnderMouse (mouseCoordinates);\n        if (intersection === null) {\n            this.ClearMarkers ();\n            this.UpdatePanel ();\n            return;\n        }\n\n        if (this.markers.length === 2) {\n            this.ClearMarkers ();\n        }\n\n        this.AddMarker (intersection);\n        this.UpdatePanel ();\n    }\n\n    MouseMove (mouseCoordinates)\n    {\n        let intersection = this.viewer.GetMeshIntersectionUnderMouse (mouseCoordinates);\n        if (intersection === null) {\n            if (this.tempMarker !== null) {\n                this.tempMarker.Show (false);\n                this.viewer.Render ();\n            }\n            return;\n        }\n        if (this.tempMarker === null) {\n            this.tempMarker = this.GenerateMarker (intersection);\n        }\n        this.tempMarker.UpdatePosition (intersection);\n        this.tempMarker.Show (true);\n        this.viewer.Render ();\n    }\n\n    AddMarker (intersection)\n    {\n        let marker = this.GenerateMarker (intersection);\n        this.markers.push (marker);\n        if (this.markers.length === 2) {\n            let material = CreateMaterial ();\n            let aPoint = this.markers[0].GetIntersection ().point;\n            let bPoint = this.markers[1].GetIntersection ().point;\n            this.viewer.AddExtraObject (CreateLineFromPoints ([aPoint, bPoint], material));\n        }\n    }\n\n    GenerateMarker (intersection)\n    {\n        let boundingSphere = this.viewer.GetBoundingSphere ((meshUserData) => {\n            return true;\n        });\n\n        let radius = boundingSphere.radius / 20.0;\n        let marker = new Marker (intersection, radius);\n        this.viewer.AddExtraObject (marker.GetObject ());\n        return marker;\n    }\n\n    UpdatePanel ()\n    {\n        function AddValue (panel, icon, title, value)\n        {\n            let svgIcon = AddSvgIconElement (panel, icon, 'left_inline');\n            svgIcon.title = title;\n            AddDiv (panel, 'ov_measure_value', value);\n        }\n\n        ClearDomElement (this.panel);\n        if (IsDarkTextNeededForColor (this.settings.backgroundColor)) {\n            this.panel.style.color = '#000000';\n        } else {\n            this.panel.style.color = '#ffffff';\n        }\n        if (this.markers.length === 0) {\n            this.panel.innerHTML = 'Select a point.';\n        } else if (this.markers.length === 1) {\n            this.panel.innerHTML = 'Select another point.';\n        } else {\n            let calcResult = CalculateMarkerValues (this.markers[0], this.markers[1]);\n\n            if (calcResult.pointsDistance !== null) {\n                AddValue (this.panel, 'measure_distance', 'Distance of points', calcResult.pointsDistance.toFixed (3));\n            }\n            if (calcResult.parallelFacesDistance !== null) {\n                AddValue (this.panel, 'measure_distance_parallel', 'Distance of parallel faces', calcResult.parallelFacesDistance.toFixed (3));\n            }\n            if (calcResult.facesAngle !== null) {\n                let degreeValue = calcResult.facesAngle * RadDeg;\n                AddValue (this.panel, 'measure_angle', 'Angle of faces', degreeValue.toFixed (1) + '\\xB0');\n            }\n        }\n    }\n\n    Resize ()\n    {\n        if (!this.isActive) {\n            return;\n        }\n        let canvas = this.viewer.GetCanvas ();\n        let rect = canvas.getBoundingClientRect ();\n        this.panel.style.left = rect.left + 'px';\n        this.panel.style.top = rect.top + 'px';\n        this.panel.style.width = (rect.right - rect.left) + 'px';\n    }\n\n    ClearMarkers ()\n    {\n        this.viewer.ClearExtra ();\n        this.markers = [];\n        this.tempMarker = null;\n    }\n}\n", "import { FileSource, GetFileExtension, TransformFileHostUrls } from '../engine/io/fileutils.js';\nimport { ImportErrorCode, ImportSettings } from '../engine/import/importer.js';\nimport { Viewer } from '../engine/viewer/viewer.js';\nimport { AddDiv, AddDomElement, ShowDomElement, SetDomElementOuterHeight } from '../engine/viewer/domutils.js';\nimport { CalculatePopupPositionToScreen, ShowListPopup } from './dialogs.js';\nimport { HandleEvent } from './eventhandler.js';\nimport { HashHandler } from './hashhandler.js';\nimport { Navigator, Selection, SelectionType } from './navigator.js';\nimport { Settings, Theme } from './settings.js';\nimport { Sidebar } from './sidebar.js';\nimport { ThemeHandler } from './themehandler.js';\nimport { ThreeModelLoaderUI } from './threemodelloaderui.js';\nimport { Toolbar } from './toolbar.js';\nimport { ShowExportDialog } from './exportdialog.js';\nimport { ShowSnapshotDialog } from './snapshotdialog.js';\nimport { AddSmallWidthChangeEventListener, GetFilesFromDataTransfer, IsSmallWidth } from './utils.js';\nimport { ShowOpenUrlDialog } from './openurldialog.js';\nimport { ShowSharingDialog } from './sharingdialog.js';\nimport { HasDefaultMaterial, ReplaceDefaultMaterialColor } from '../engine/model/modelutils.js';\nimport { Direction } from '../engine/geometry/geometry.js';\nimport { CookieGetBoolVal, CookieSetBoolVal } from './cookiehandler.js';\nimport { ShadingType } from '../engine/threejs/threeutils.js';\nimport { MeasureTool } from './measuretool.js';\nimport { CloseAllDialogs } from './dialog.js';\n\nexport const WebsiteUIState =\n{\n    Undefined : 0,\n    Intro : 1,\n    Model : 2,\n    Loading : 3\n};\n\nexport class Website\n{\n    constructor (parameters)\n    {\n        this.parameters = parameters;\n        this.settings = new Settings ();\n        this.viewer = new Viewer ();\n        this.measureTool = new MeasureTool (this.viewer, this.settings);\n        this.hashHandler = new HashHandler ();\n        this.toolbar = new Toolbar (this.parameters.toolbarDiv);\n        this.navigator = new Navigator (this.parameters.navigatorDiv, this.parameters.navigatorSplitterDiv);\n        this.sidebar = new Sidebar (this.parameters.sidebarDiv, this.parameters.sidebarSplitterDiv, this.settings);\n        this.modelLoaderUI = new ThreeModelLoaderUI ();\n        this.themeHandler = new ThemeHandler ();\n        this.highlightColor = new THREE.Color (0x8ec9f0);\n        this.uiState = WebsiteUIState.Undefined;\n        this.model = null;\n    }\n\n    Load ()\n    {\n        this.settings.LoadFromCookies ();\n        this.SwitchTheme (this.settings.themeId, false);\n        HandleEvent ('theme_on_load', this.settings.themeId === Theme.Light ? 'light' : 'dark');\n\n        this.InitViewer ();\n        this.InitToolbar ();\n        this.InitDragAndDrop ();\n        this.InitSidebar ();\n        this.InitNavigator ();\n        this.InitCookieConsent ();\n\n        this.viewer.SetMouseClickHandler (this.OnModelClicked.bind (this));\n        this.viewer.SetMouseMoveHandler (this.OnModelMouseMoved.bind (this));\n        this.viewer.SetContextMenuHandler (this.OnModelContextMenu.bind (this));\n\n        this.Resize ();\n        this.SetUIState (WebsiteUIState.Intro);\n\n        this.hashHandler.SetEventListener (this.OnHashChange.bind (this));\n        this.OnHashChange ();\n\n        AddSmallWidthChangeEventListener (() => {\n            this.OnSmallWidthChanged ();\n        });\n\n        window.addEventListener ('resize', () => {\n\t\t\tthis.Resize ();\n\t\t});\n    }\n\n    Resize ()\n    {\n        let windowWidth = window.innerWidth;\n        let windowHeight = window.innerHeight;\n        let headerHeight = this.parameters.headerDiv.offsetHeight;\n\n        let navigatorWidth = 0;\n        let sidebarWidth = 0;\n        let safetyMargin = 0;\n        if (!IsSmallWidth ()) {\n            navigatorWidth = this.navigator.GetWidth ();\n            sidebarWidth = this.sidebar.GetWidth ();\n            safetyMargin = 1;\n        }\n\n        const minContentWidth = 50;\n        let contentWidth = windowWidth - navigatorWidth - sidebarWidth;\n        if (contentWidth < minContentWidth) {\n            this.sidebar.DecreaseWidth (minContentWidth - contentWidth);\n            contentWidth = minContentWidth;\n        }\n        let contentHeight = windowHeight - headerHeight;\n\n        SetDomElementOuterHeight (this.parameters.introDiv, contentHeight);\n        this.navigator.Resize (contentHeight);\n        this.sidebar.Resize (contentHeight);\n        this.viewer.Resize (contentWidth - safetyMargin, contentHeight);\n        this.measureTool.Resize ();\n    }\n\n    OnSmallWidthChanged ()\n    {\n        if (this.uiState === WebsiteUIState.Model) {\n            this.UpdatePanelsVisibility ();\n        }\n    }\n\n    HasLoadedModel ()\n    {\n        return this.model !== null;\n    }\n\n    SetUIState (uiState)\n    {\n        function ShowOnlyOnModelElements (show)\n        {\n            let root = document.querySelector (':root');\n            root.style.setProperty ('--ov_only_on_model_display', show ? 'inherit' : 'none');\n        }\n\n        if (this.uiState === uiState) {\n            return;\n        }\n\n        this.uiState = uiState;\n        if (this.uiState === WebsiteUIState.Intro) {\n            ShowDomElement (this.parameters.introDiv, true);\n            ShowDomElement (this.parameters.mainDiv, false);\n            ShowOnlyOnModelElements (false);\n        } else if (this.uiState === WebsiteUIState.Model) {\n            ShowDomElement (this.parameters.introDiv, false);\n            ShowDomElement (this.parameters.mainDiv, true);\n            ShowOnlyOnModelElements (true);\n            this.UpdatePanelsVisibility ();\n        } else if (this.uiState === WebsiteUIState.Loading) {\n            ShowDomElement (this.parameters.introDiv, false);\n            ShowDomElement (this.parameters.mainDiv, false);\n            ShowOnlyOnModelElements (false);\n        }\n\n        this.Resize ();\n    }\n\n    ClearModel ()\n    {\n        CloseAllDialogs ();\n\n        this.model = null;\n        this.viewer.Clear ();\n\n        this.parameters.fileNameDiv.innerHTML = '';\n\n        this.navigator.Clear ();\n        this.sidebar.Clear ();\n\n        this.measureTool.SetActive (false);\n    }\n\n    OnModelLoaded (importResult, threeObject)\n    {\n        this.model = importResult.model;\n        this.parameters.fileNameDiv.innerHTML = importResult.mainFile;\n        this.viewer.SetMainObject (threeObject);\n        this.viewer.SetUpVector (Direction.Y, false);\n        this.navigator.FillTree (importResult);\n        this.UpdateSidebar ();\n        this.FitModelToWindow (true);\n    }\n\n    OnModelClicked (button, mouseCoordinates)\n    {\n        if (button !== 1) {\n            return;\n        }\n\n        if (this.measureTool.IsActive ()) {\n            this.measureTool.Click (mouseCoordinates);\n            return;\n        }\n\n        let meshUserData = this.viewer.GetMeshUserDataUnderMouse (mouseCoordinates);\n        if (meshUserData === null) {\n            this.navigator.SetSelection (null);\n        } else {\n            this.navigator.SetSelection (new Selection (SelectionType.Mesh, meshUserData.originalMeshId));\n        }\n    }\n\n    OnModelMouseMoved (mouseCoordinates)\n    {\n        if (this.measureTool.IsActive ()) {\n            this.measureTool.MouseMove (mouseCoordinates);\n        }\n    }\n\n    OnModelContextMenu (globalMouseCoordinates, mouseCoordinates)\n    {\n        let meshUserData = this.viewer.GetMeshUserDataUnderMouse (mouseCoordinates);\n        let items = [];\n        if (meshUserData === null) {\n            items.push ({\n                name : 'Fit model to window',\n                icon : 'fit',\n                onClick : () => {\n                    this.FitModelToWindow (false);\n                }\n            });\n            if (this.navigator.HasHiddenMesh ()) {\n                items.push ({\n                    name : 'Show all meshes',\n                    icon : 'visible',\n                    onClick : () => {\n                        this.navigator.ShowAllMeshes (true);\n                    }\n                });\n            }\n        } else {\n            items.push ({\n                name : 'Hide mesh',\n                icon : 'hidden',\n                onClick : () => {\n                    this.navigator.ToggleMeshVisibility (meshUserData.originalMeshId);\n                }\n            });\n            items.push ({\n                name : 'Fit mesh to window',\n                icon : 'fit',\n                onClick : () => {\n                    this.navigator.FitMeshToWindow (meshUserData.originalMeshId);\n                }\n            });\n            if (this.navigator.MeshItemCount () > 1) {\n                let isMeshIsolated = this.navigator.IsMeshIsolated (meshUserData.originalMeshId);\n                items.push ({\n                    name : isMeshIsolated ? 'Remove isolation' : 'Isolate mesh',\n                    icon : isMeshIsolated ? 'deisolate' : 'isolate',\n                    onClick : () => {\n                        if (isMeshIsolated) {\n                            this.navigator.ShowAllMeshes (true);\n                        } else {\n                            this.navigator.IsolateMesh (meshUserData.originalMeshId);\n                        }\n                    }\n                });\n            }\n        }\n        ShowListPopup (items, {\n            calculatePosition : (contentDiv) => {\n                return CalculatePopupPositionToScreen (globalMouseCoordinates, contentDiv);\n            },\n            onClick : (index) => {\n                let clickedItem = items[index];\n                clickedItem.onClick ();\n            }\n        });\n    }\n\n    OnHashChange ()\n    {\n        if (this.hashHandler.HasHash ()) {\n            let urls = this.hashHandler.GetModelFilesFromHash ();\n            if (urls === null) {\n                return;\n            }\n            TransformFileHostUrls (urls);\n            let importSettings = new ImportSettings ();\n            importSettings.defaultColor = this.settings.defaultColor;\n            let defaultColor = this.hashHandler.GetDefaultColorFromHash ();\n            if (defaultColor !== null) {\n                importSettings.defaultColor = defaultColor;\n            }\n            HandleEvent ('model_load_started', 'hash');\n            this.LoadModelFromUrlList (urls, importSettings);\n        } else {\n            this.ClearModel ();\n            this.SetUIState (WebsiteUIState.Intro);\n        }\n    }\n\n    OpenFileBrowserDialog ()\n    {\n        this.parameters.fileInput.click ();\n    }\n\n    FitModelToWindow (onLoad)\n    {\n        let animation = !onLoad;\n        let boundingSphere = this.viewer.GetBoundingSphere ((meshUserData) => {\n            return this.navigator.IsMeshVisible (meshUserData.originalMeshId);\n        });\n        if (onLoad) {\n            this.viewer.AdjustClippingPlanesToSphere (boundingSphere);\n        }\n        this.viewer.FitSphereToWindow (boundingSphere, animation);\n    }\n\n    FitMeshToWindow (meshInstanceId)\n    {\n        let boundingSphere = this.viewer.GetBoundingSphere ((meshUserData) => {\n            return meshUserData.originalMeshId.IsEqual (meshInstanceId);\n        });\n        this.viewer.FitSphereToWindow (boundingSphere, true);\n    }\n\n    FitMeshesToWindow (meshInstanceIdSet)\n    {\n        let meshInstanceIdKeys = new Set ();\n        for (let meshInstanceId of meshInstanceIdSet) {\n            meshInstanceIdKeys.add (meshInstanceId.GetKey ());\n        }\n        let boundingSphere = this.viewer.GetBoundingSphere ((meshUserData) => {\n            return meshInstanceIdKeys.has (meshUserData.originalMeshId.GetKey ());\n        });\n        this.viewer.FitSphereToWindow (boundingSphere, true);\n    }\n\n    UpdateSidebar ()\n    {\n        let shadingType = this.viewer.GetShadingType ();\n        let isPhysicallyBased = (shadingType === ShadingType.Physical);\n        let hasDefaultMaterial = HasDefaultMaterial (this.model);\n        this.sidebar.UpdateSettings (isPhysicallyBased, hasDefaultMaterial);\n    }\n\n    UpdateMeshesVisibility ()\n    {\n        this.viewer.SetMeshesVisibility ((meshUserData) => {\n            return this.navigator.IsMeshVisible (meshUserData.originalMeshId);\n        });\n    }\n\n    UpdateMeshesSelection ()\n    {\n        let selectedMeshId = this.navigator.GetSelectedMeshId ();\n        this.viewer.SetMeshesHighlight (this.highlightColor, (meshUserData) => {\n            if (selectedMeshId !== null && meshUserData.originalMeshId.IsEqual (selectedMeshId)) {\n                return true;\n            }\n            return false;\n        });\n    }\n\n    LoadModelFromUrlList (urls, settings)\n    {\n        this.LoadModel (urls, FileSource.Url, settings);\n        this.ClearHashIfNotOnlyUrlList ();\n    }\n\n    LoadModelFromFileList (files)\n    {\n        let importSettings = new ImportSettings ();\n        importSettings.defaultColor = this.settings.defaultColor;\n        this.LoadModel (files, FileSource.File, importSettings);\n        this.ClearHashIfNotOnlyUrlList ();\n    }\n\n    LoadModel (files, fileSource, settings)\n    {\n        this.modelLoaderUI.LoadModel (files, fileSource, settings, {\n            onStart : () =>\n            {\n                this.SetUIState (WebsiteUIState.Loading);\n                this.ClearModel ();\n            },\n            onFinish : (importResult, threeObject) =>\n            {\n                this.SetUIState (WebsiteUIState.Model);\n                this.OnModelLoaded (importResult, threeObject);\n                let importedExtension = GetFileExtension (importResult.mainFile);\n                HandleEvent ('model_loaded', importedExtension);\n            },\n            onRender : () =>\n            {\n                this.viewer.Render ();\n            },\n            onError : (importError) =>\n            {\n                this.SetUIState (WebsiteUIState.Intro);\n                let extensionStr = null;\n                if (importError.mainFile !== null) {\n                    extensionStr = GetFileExtension (importError.mainFile);\n                } else {\n                    let extensions = [];\n                    let importer = this.modelLoaderUI.GetImporter ();\n                    let fileList = importer.GetFileList ().GetFiles ();\n                    for (let i = 0; i < fileList.length; i++) {\n                        let extension = fileList[i].extension;\n                        extensions.push (extension);\n                    }\n                    extensionStr = extensions.join (',');\n                }\n                if (importError.code === ImportErrorCode.NoImportableFile) {\n                    HandleEvent ('no_importable_file', extensionStr);\n                } else if (importError.code === ImportErrorCode.FailedToLoadFile) {\n                    HandleEvent ('failed_to_load_file', extensionStr);\n                } else if (importError.code === ImportErrorCode.ImportFailed) {\n                    HandleEvent ('import_failed', extensionStr, {\n                        error_message : importError.message\n                    });\n                }\n            }\n        });\n    }\n\n    ClearHashIfNotOnlyUrlList ()\n    {\n        let importer = this.modelLoaderUI.GetImporter ();\n        let isOnlyUrl = importer.GetFileList ().IsOnlyUrlSource ();\n        if (!isOnlyUrl && this.hashHandler.HasHash ()) {\n            this.hashHandler.SkipNextEventHandler ();\n            this.hashHandler.ClearHash ();\n        }\n    }\n\n    UpdateEdgeDisplay ()\n    {\n        this.settings.SaveToCookies ();\n        this.viewer.SetEdgeSettings (this.settings.showEdges, this.settings.edgeColor, this.settings.edgeThreshold);\n    }\n\n    UpdateEnvironmentMap ()\n    {\n        let envMapPath = 'assets/envmaps/' + this.settings.environmentMapName + '/';\n        let envMapTextures = [\n            envMapPath + 'posx.jpg',\n            envMapPath + 'negx.jpg',\n            envMapPath + 'posy.jpg',\n            envMapPath + 'negy.jpg',\n            envMapPath + 'posz.jpg',\n            envMapPath + 'negz.jpg'\n        ];\n        this.viewer.SetEnvironmentMapSettings (envMapTextures, this.settings.backgroundIsEnvMap);\n    }\n\n    SwitchTheme (newThemeId, resetColors)\n    {\n        this.settings.themeId = newThemeId;\n        this.themeHandler.SwitchTheme (this.settings.themeId);\n        this.settings.SaveToCookies ();\n        if (resetColors) {\n            this.viewer.SetBackgroundColor (this.settings.backgroundColor);\n            let modelLoader = this.modelLoaderUI.GetModelLoader ();\n            if (modelLoader.GetDefaultMaterial () !== null) {\n                ReplaceDefaultMaterialColor (this.model, this.settings.defaultColor);\n                modelLoader.ReplaceDefaultMaterialColor (this.settings.defaultColor);\n            }\n        }\n    }\n\n    InitViewer ()\n    {\n        let canvas = AddDomElement (this.parameters.viewerDiv, 'canvas');\n        this.viewer.Init (canvas);\n        this.viewer.SetEdgeSettings (this.settings.showEdges, this.settings.edgeColor, this.settings.edgeThreshold);\n        this.viewer.SetBackgroundColor (this.settings.backgroundColor);\n        this.UpdateEnvironmentMap ();\n    }\n\n    InitToolbar ()\n    {\n        function AddButton (toolbar, imageName, imageTitle, classNames, onClick)\n        {\n            let button = toolbar.AddImageButton (imageName, imageTitle, () => {\n                onClick ();\n            });\n            for (let className of classNames) {\n                button.AddClass (className);\n            }\n            return button;\n        }\n\n        function AddPushButton (toolbar, imageName, imageTitle, classNames, onClick)\n        {\n            let button = toolbar.AddImagePushButton (imageName, imageTitle, false, (isSelected) => {\n                onClick (isSelected);\n            });\n            for (let className of classNames) {\n                button.AddClass (className);\n            }\n            return button;\n        }\n\n        function AddRadioButton (toolbar, imageNames, imageTitles, selectedIndex, classNames, onClick)\n        {\n            let imageData = [];\n            for (let i = 0; i < imageNames.length; i++) {\n                let imageName = imageNames[i];\n                let imageTitle = imageTitles[i];\n                imageData.push ({\n                    image : imageName,\n                    title : imageTitle\n                });\n            }\n            let buttons = toolbar.AddImageRadioButton (imageData, selectedIndex, (buttonIndex) => {\n                onClick (buttonIndex);\n            });\n            for (let className of classNames) {\n                for (let button of buttons) {\n                    button.AddClass 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() => {\n            this.FitModelToWindow (false);\n        });\n        AddButton (this.toolbar, 'up_y', 'Set Y axis as up vector', ['only_on_model'], () => {\n            this.viewer.SetUpVector (Direction.Y, true);\n        });\n        AddButton (this.toolbar, 'up_z', 'Set Z axis as up vector', ['only_on_model'], () => {\n            this.viewer.SetUpVector (Direction.Z, true);\n        });\n        AddButton (this.toolbar, 'flip', 'Flip up vector', ['only_on_model'], () => {\n            this.viewer.FlipUpVector ();\n        });\n        AddSeparator (this.toolbar, ['only_on_model']);\n        AddRadioButton (this.toolbar, ['fix_up_on', 'fix_up_off'], ['Fixed up vector', 'Free orbit'], 0, ['only_on_model'], (buttonIndex) => {\n            if (buttonIndex === 0) {\n                this.viewer.SetFixUpVector (true);\n            } else if (buttonIndex === 1) {\n                this.viewer.SetFixUpVector (false);\n            }\n        });\n        AddSeparator (this.toolbar, ['only_full_width', 'only_on_model']);\n        let measureToolButton = AddPushButton (this.toolbar, 'measure', 'Measure', ['only_full_width', 'only_on_model'], (isSelected) => {\n            HandleEvent ('measure_tool_activated', isSelected ? 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