simsite/frontend/node_modules/three-stdlib/loaders/3MFLoader.cjs

"use strict";
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const THREE = require("three");
const fflate = require("fflate");
const LoaderUtils = require("../_polyfill/LoaderUtils.cjs");
class ThreeMFLoader extends THREE.Loader {
  constructor(manager) {
    super(manager);
    this.availableExtensions = [];
  }
  load(url, onLoad, onProgress, onError) {
    const scope = this;
    const loader = new THREE.FileLoader(scope.manager);
    loader.setPath(scope.path);
    loader.setResponseType("arraybuffer");
    loader.setRequestHeader(scope.requestHeader);
    loader.setWithCredentials(scope.withCredentials);
    loader.load(
      url,
      function(buffer) {
        try {
          onLoad(scope.parse(buffer));
        } catch (e) {
          if (onError) {
            onError(e);
          } else {
            console.error(e);
          }
          scope.manager.itemError(url);
        }
      },
      onProgress,
      onError
    );
  }
  parse(data) {
    const scope = this;
    const textureLoader = new THREE.TextureLoader(this.manager);
    function loadDocument(data2) {
      let zip = null;
      let file = null;
      let relsName;
      let modelRelsName;
      const modelPartNames = [];
      const texturesPartNames = [];
      let modelRels;
      const modelParts = {};
      const printTicketParts = {};
      const texturesParts = {};
      const otherParts = {};
      try {
        zip = fflate.unzipSync(new Uint8Array(data2));
      } catch (e) {
        if (e instanceof ReferenceError) {
          console.error("THREE.3MFLoader: fflate missing and file is compressed.");
          return null;
        }
      }
      for (file in zip) {
        if (file.match(/\_rels\/.rels$/)) {
          relsName = file;
        } else if (file.match(/3D\/_rels\/.*\.model\.rels$/)) {
          modelRelsName = file;
        } else if (file.match(/^3D\/.*\.model$/)) {
          modelPartNames.push(file);
        } else if (file.match(/^3D\/Metadata\/.*\.xml$/))
          ;
        else if (file.match(/^3D\/Textures?\/.*/)) {
          texturesPartNames.push(file);
        } else if (file.match(/^3D\/Other\/.*/))
          ;
      }
      const relsView = zip[relsName];
      const relsFileText = LoaderUtils.decodeText(relsView);
      const rels = parseRelsXml(relsFileText);
      if (modelRelsName) {
        const relsView2 = zip[modelRelsName];
        const relsFileText2 = LoaderUtils.decodeText(relsView2);
        modelRels = parseRelsXml(relsFileText2);
      }
      for (let i = 0; i < modelPartNames.length; i++) {
        const modelPart = modelPartNames[i];
        const view = zip[modelPart];
        const fileText = LoaderUtils.decodeText(view);
        const xmlData = new DOMParser().parseFromString(fileText, "application/xml");
        if (xmlData.documentElement.nodeName.toLowerCase() !== "model") {
          console.error("THREE.3MFLoader: Error loading 3MF - no 3MF document found: ", modelPart);
        }
        const modelNode = xmlData.querySelector("model");
        const extensions = {};
        for (let i2 = 0; i2 < modelNode.attributes.length; i2++) {
          const attr = modelNode.attributes[i2];
          if (attr.name.match(/^xmlns:(.+)$/)) {
            extensions[attr.value] = RegExp.$1;
          }
        }
        const modelData = parseModelNode(modelNode);
        modelData["xml"] = modelNode;
        if (0 < Object.keys(extensions).length) {
          modelData["extensions"] = extensions;
        }
        modelParts[modelPart] = modelData;
      }
      for (let i = 0; i < texturesPartNames.length; i++) {
        const texturesPartName = texturesPartNames[i];
        texturesParts[texturesPartName] = zip[texturesPartName].buffer;
      }
      return {
        rels,
        modelRels,
        model: modelParts,
        printTicket: printTicketParts,
        texture: texturesParts,
        other: otherParts
      };
    }
    function parseRelsXml(relsFileText) {
      const relationships = [];
      const relsXmlData = new DOMParser().parseFromString(relsFileText, "application/xml");
      const relsNodes = relsXmlData.querySelectorAll("Relationship");
      for (let i = 0; i < relsNodes.length; i++) {
        const relsNode = relsNodes[i];
        const relationship = {
          target: relsNode.getAttribute("Target"),
          //required
          id: relsNode.getAttribute("Id"),
          //required
          type: relsNode.getAttribute("Type")
          //required
        };
        relationships.push(relationship);
      }
      return relationships;
    }
    function parseMetadataNodes(metadataNodes) {
      const metadataData = {};
      for (let i = 0; i < metadataNodes.length; i++) {
        const metadataNode = metadataNodes[i];
        const name = metadataNode.getAttribute("name");
        const validNames = [
          "Title",
          "Designer",
          "Description",
          "Copyright",
          "LicenseTerms",
          "Rating",
          "CreationDate",
          "ModificationDate"
        ];
        if (0 <= validNames.indexOf(name)) {
          metadataData[name] = metadataNode.textContent;
        }
      }
      return metadataData;
    }
    function parseBasematerialsNode(basematerialsNode) {
      const basematerialsData = {
        id: basematerialsNode.getAttribute("id"),
        // required
        basematerials: []
      };
      const basematerialNodes = basematerialsNode.querySelectorAll("base");
      for (let i = 0; i < basematerialNodes.length; i++) {
        const basematerialNode = basematerialNodes[i];
        const basematerialData = parseBasematerialNode(basematerialNode);
        basematerialData.index = i;
        basematerialsData.basematerials.push(basematerialData);
      }
      return basematerialsData;
    }
    function parseTexture2DNode(texture2DNode) {
      const texture2dData = {
        id: texture2DNode.getAttribute("id"),
        // required
        path: texture2DNode.getAttribute("path"),
        // required
        contenttype: texture2DNode.getAttribute("contenttype"),
        // required
        tilestyleu: texture2DNode.getAttribute("tilestyleu"),
        tilestylev: texture2DNode.getAttribute("tilestylev"),
        filter: texture2DNode.getAttribute("filter")
      };
      return texture2dData;
    }
    function parseTextures2DGroupNode(texture2DGroupNode) {
      const texture2DGroupData = {
        id: texture2DGroupNode.getAttribute("id"),
        // required
        texid: texture2DGroupNode.getAttribute("texid"),
        // required
        displaypropertiesid: texture2DGroupNode.getAttribute("displaypropertiesid")
      };
      const tex2coordNodes = texture2DGroupNode.querySelectorAll("tex2coord");
      const uvs = [];
      for (let i = 0; i < tex2coordNodes.length; i++) {
        const tex2coordNode = tex2coordNodes[i];
        const u = tex2coordNode.getAttribute("u");
        const v = tex2coordNode.getAttribute("v");
        uvs.push(parseFloat(u), parseFloat(v));
      }
      texture2DGroupData["uvs"] = new Float32Array(uvs);
      return texture2DGroupData;
    }
    function parseColorGroupNode(colorGroupNode) {
      const colorGroupData = {
        id: colorGroupNode.getAttribute("id"),
        // required
        displaypropertiesid: colorGroupNode.getAttribute("displaypropertiesid")
      };
      const colorNodes = colorGroupNode.querySelectorAll("color");
      const colors = [];
      const colorObject = new THREE.Color();
      for (let i = 0; i < colorNodes.length; i++) {
        const colorNode = colorNodes[i];
        const color = colorNode.getAttribute("color");
        colorObject.setStyle(color.substring(0, 7));
        colorObject.convertSRGBToLinear();
        colors.push(colorObject.r, colorObject.g, colorObject.b);
      }
      colorGroupData["colors"] = new Float32Array(colors);
      return colorGroupData;
    }
    function parseMetallicDisplaypropertiesNode(metallicDisplaypropetiesNode) {
      const metallicDisplaypropertiesData = {
        id: metallicDisplaypropetiesNode.getAttribute("id")
        // required
      };
      const metallicNodes = metallicDisplaypropetiesNode.querySelectorAll("pbmetallic");
      const metallicData = [];
      for (let i = 0; i < metallicNodes.length; i++) {
        const metallicNode = metallicNodes[i];
        metallicData.push({
          name: metallicNode.getAttribute("name"),
          // required
          metallicness: parseFloat(metallicNode.getAttribute("metallicness")),
          // required
          roughness: parseFloat(metallicNode.getAttribute("roughness"))
          // required
        });
      }
      metallicDisplaypropertiesData.data = metallicData;
      return metallicDisplaypropertiesData;
    }
    function parseBasematerialNode(basematerialNode) {
      const basematerialData = {};
      basematerialData["name"] = basematerialNode.getAttribute("name");
      basematerialData["displaycolor"] = basematerialNode.getAttribute("displaycolor");
      basematerialData["displaypropertiesid"] = basematerialNode.getAttribute("displaypropertiesid");
      return basematerialData;
    }
    function parseMeshNode(meshNode) {
      const meshData = {};
      const vertices = [];
      const vertexNodes = meshNode.querySelectorAll("vertices vertex");
      for (let i = 0; i < vertexNodes.length; i++) {
        const vertexNode = vertexNodes[i];
        const x = vertexNode.getAttribute("x");
        const y = vertexNode.getAttribute("y");
        const z = vertexNode.getAttribute("z");
        vertices.push(parseFloat(x), parseFloat(y), parseFloat(z));
      }
      meshData["vertices"] = new Float32Array(vertices);
      const triangleProperties = [];
      const triangles = [];
      const triangleNodes = meshNode.querySelectorAll("triangles triangle");
      for (let i = 0; i < triangleNodes.length; i++) {
        const triangleNode = triangleNodes[i];
        const v1 = triangleNode.getAttribute("v1");
        const v2 = triangleNode.getAttribute("v2");
        const v3 = triangleNode.getAttribute("v3");
        const p1 = triangleNode.getAttribute("p1");
        const p2 = triangleNode.getAttribute("p2");
        const p3 = triangleNode.getAttribute("p3");
        const pid = triangleNode.getAttribute("pid");
        const triangleProperty = {};
        triangleProperty["v1"] = parseInt(v1, 10);
        triangleProperty["v2"] = parseInt(v2, 10);
        triangleProperty["v3"] = parseInt(v3, 10);
        triangles.push(triangleProperty["v1"], triangleProperty["v2"], triangleProperty["v3"]);
        if (p1) {
          triangleProperty["p1"] = parseInt(p1, 10);
        }
        if (p2) {
          triangleProperty["p2"] = parseInt(p2, 10);
        }
        if (p3) {
          triangleProperty["p3"] = parseInt(p3, 10);
        }
        if (pid) {
          triangleProperty["pid"] = pid;
        }
        if (0 < Object.keys(triangleProperty).length) {
          triangleProperties.push(triangleProperty);
        }
      }
      meshData["triangleProperties"] = triangleProperties;
      meshData["triangles"] = new Uint32Array(triangles);
      return meshData;
    }
    function parseComponentsNode(componentsNode) {
      const components = [];
      const componentNodes = componentsNode.querySelectorAll("component");
      for (let i = 0; i < componentNodes.length; i++) {
        const componentNode = componentNodes[i];
        const componentData = parseComponentNode(componentNode);
        components.push(componentData);
      }
      return components;
    }
    function parseComponentNode(componentNode) {
      const componentData = {};
      componentData["objectId"] = componentNode.getAttribute("objectid");
      const transform = componentNode.getAttribute("transform");
      if (transform) {
        componentData["transform"] = parseTransform(transform);
      }
      return componentData;
    }
    function parseTransform(transform) {
      const t = [];
      transform.split(" ").forEach(function(s) {
        t.push(parseFloat(s));
      });
      const matrix = new THREE.Matrix4();
      matrix.set(t[0], t[3], t[6], t[9], t[1], t[4], t[7], t[10], t[2], t[5], t[8], t[11], 0, 0, 0, 1);
      return matrix;
    }
    function parseObjectNode(objectNode) {
      const objectData = {
        type: objectNode.getAttribute("type")
      };
      const id = objectNode.getAttribute("id");
      if (id) {
        objectData["id"] = id;
      }
      const pid = objectNode.getAttribute("pid");
      if (pid) {
        objectData["pid"] = pid;
      }
      const pindex = objectNode.getAttribute("pindex");
      if (pindex) {
        objectData["pindex"] = pindex;
      }
      const thumbnail = objectNode.getAttribute("thumbnail");
      if (thumbnail) {
        objectData["thumbnail"] = thumbnail;
      }
      const partnumber = objectNode.getAttribute("partnumber");
      if (partnumber) {
        objectData["partnumber"] = partnumber;
      }
      const name = objectNode.getAttribute("name");
      if (name) {
        objectData["name"] = name;
      }
      const meshNode = objectNode.querySelector("mesh");
      if (meshNode) {
        objectData["mesh"] = parseMeshNode(meshNode);
      }
      const componentsNode = objectNode.querySelector("components");
      if (componentsNode) {
        objectData["components"] = parseComponentsNode(componentsNode);
      }
      return objectData;
    }
    function parseResourcesNode(resourcesNode) {
      const resourcesData = {};
      resourcesData["basematerials"] = {};
      const basematerialsNodes = resourcesNode.querySelectorAll("basematerials");
      for (let i = 0; i < basematerialsNodes.length; i++) {
        const basematerialsNode = basematerialsNodes[i];
        const basematerialsData = parseBasematerialsNode(basematerialsNode);
        resourcesData["basematerials"][basematerialsData["id"]] = basematerialsData;
      }
      resourcesData["texture2d"] = {};
      const textures2DNodes = resourcesNode.querySelectorAll("texture2d");
      for (let i = 0; i < textures2DNodes.length; i++) {
        const textures2DNode = textures2DNodes[i];
        const texture2DData = parseTexture2DNode(textures2DNode);
        resourcesData["texture2d"][texture2DData["id"]] = texture2DData;
      }
      resourcesData["colorgroup"] = {};
      const colorGroupNodes = resourcesNode.querySelectorAll("colorgroup");
      for (let i = 0; i < colorGroupNodes.length; i++) {
        const colorGroupNode = colorGroupNodes[i];
        const colorGroupData = parseColorGroupNode(colorGroupNode);
        resourcesData["colorgroup"][colorGroupData["id"]] = colorGroupData;
      }
      resourcesData["pbmetallicdisplayproperties"] = {};
      const pbmetallicdisplaypropertiesNodes = resourcesNode.querySelectorAll("pbmetallicdisplayproperties");
      for (let i = 0; i < pbmetallicdisplaypropertiesNodes.length; i++) {
        const pbmetallicdisplaypropertiesNode = pbmetallicdisplaypropertiesNodes[i];
        const pbmetallicdisplaypropertiesData = parseMetallicDisplaypropertiesNode(pbmetallicdisplaypropertiesNode);
        resourcesData["pbmetallicdisplayproperties"][pbmetallicdisplaypropertiesData["id"]] = pbmetallicdisplaypropertiesData;
      }
      resourcesData["texture2dgroup"] = {};
      const textures2DGroupNodes = resourcesNode.querySelectorAll("texture2dgroup");
      for (let i = 0; i < textures2DGroupNodes.length; i++) {
        const textures2DGroupNode = textures2DGroupNodes[i];
        const textures2DGroupData = parseTextures2DGroupNode(textures2DGroupNode);
        resourcesData["texture2dgroup"][textures2DGroupData["id"]] = textures2DGroupData;
      }
      resourcesData["object"] = {};
      const objectNodes = resourcesNode.querySelectorAll("object");
      for (let i = 0; i < objectNodes.length; i++) {
        const objectNode = objectNodes[i];
        const objectData = parseObjectNode(objectNode);
        resourcesData["object"][objectData["id"]] = objectData;
      }
      return resourcesData;
    }
    function parseBuildNode(buildNode) {
      const buildData = [];
      const itemNodes = buildNode.querySelectorAll("item");
      for (let i = 0; i < itemNodes.length; i++) {
        const itemNode = itemNodes[i];
        const buildItem = {
          objectId: itemNode.getAttribute("objectid")
        };
        const transform = itemNode.getAttribute("transform");
        if (transform) {
          buildItem["transform"] = parseTransform(transform);
        }
        buildData.push(buildItem);
      }
      return buildData;
    }
    function parseModelNode(modelNode) {
      const modelData = { unit: modelNode.getAttribute("unit") || "millimeter" };
      const metadataNodes = modelNode.querySelectorAll("metadata");
      if (metadataNodes) {
        modelData["metadata"] = parseMetadataNodes(metadataNodes);
      }
      const resourcesNode = modelNode.querySelector("resources");
      if (resourcesNode) {
        modelData["resources"] = parseResourcesNode(resourcesNode);
      }
      const buildNode = modelNode.querySelector("build");
      if (buildNode) {
        modelData["build"] = parseBuildNode(buildNode);
      }
      return modelData;
    }
    function buildTexture(texture2dgroup, objects2, modelData, textureData) {
      const texid = texture2dgroup.texid;
      const texture2ds = modelData.resources.texture2d;
      const texture2d = texture2ds[texid];
      if (texture2d) {
        const data2 = textureData[texture2d.path];
        const type = texture2d.contenttype;
        const blob = new Blob([data2], { type });
        const sourceURI = URL.createObjectURL(blob);
        const texture = textureLoader.load(sourceURI, function() {
          URL.revokeObjectURL(sourceURI);
        });
        if ("colorSpace" in texture)
          texture.colorSpace = "srgb";
        else
          texture.encoding = 3001;
        switch (texture2d.tilestyleu) {
          case "wrap":
            texture.wrapS = THREE.RepeatWrapping;
            break;
          case "mirror":
            texture.wrapS = THREE.MirroredRepeatWrapping;
            break;
          case "none":
          case "clamp":
            texture.wrapS = THREE.ClampToEdgeWrapping;
            break;
          default:
            texture.wrapS = THREE.RepeatWrapping;
        }
        switch (texture2d.tilestylev) {
          case "wrap":
            texture.wrapT = THREE.RepeatWrapping;
            break;
          case "mirror":
            texture.wrapT = THREE.MirroredRepeatWrapping;
            break;
          case "none":
          case "clamp":
            texture.wrapT = THREE.ClampToEdgeWrapping;
            break;
          default:
            texture.wrapT = THREE.RepeatWrapping;
        }
        switch (texture2d.filter) {
          case "auto":
            texture.magFilter = THREE.LinearFilter;
            texture.minFilter = THREE.LinearMipmapLinearFilter;
            break;
          case "linear":
            texture.magFilter = THREE.LinearFilter;
            texture.minFilter = THREE.LinearFilter;
            break;
          case "nearest":
            texture.magFilter = THREE.NearestFilter;
            texture.minFilter = THREE.NearestFilter;
            break;
          default:
            texture.magFilter = THREE.LinearFilter;
            texture.minFilter = THREE.LinearMipmapLinearFilter;
        }
        return texture;
      } else {
        return null;
      }
    }
    function buildBasematerialsMeshes(basematerials, triangleProperties, meshData, objects2, modelData, textureData, objectData) {
      const objectPindex = objectData.pindex;
      const materialMap = {};
      for (let i = 0, l = triangleProperties.length; i < l; i++) {
        const triangleProperty = triangleProperties[i];
        const pindex = triangleProperty.p1 !== void 0 ? triangleProperty.p1 : objectPindex;
        if (materialMap[pindex] === void 0)
          materialMap[pindex] = [];
        materialMap[pindex].push(triangleProperty);
      }
      const keys = Object.keys(materialMap);
      const meshes = [];
      for (let i = 0, l = keys.length; i < l; i++) {
        const materialIndex = keys[i];
        const trianglePropertiesProps = materialMap[materialIndex];
        const basematerialData = basematerials.basematerials[materialIndex];
        const material = getBuild(basematerialData, objects2, modelData, textureData, objectData, buildBasematerial);
        const geometry = new THREE.BufferGeometry();
        const positionData = [];
        const vertices = meshData.vertices;
        for (let j = 0, jl = trianglePropertiesProps.length; j < jl; j++) {
          const triangleProperty = trianglePropertiesProps[j];
          positionData.push(vertices[triangleProperty.v1 * 3 + 0]);
          positionData.push(vertices[triangleProperty.v1 * 3 + 1]);
          positionData.push(vertices[triangleProperty.v1 * 3 + 2]);
          positionData.push(vertices[triangleProperty.v2 * 3 + 0]);
          positionData.push(vertices[triangleProperty.v2 * 3 + 1]);
          positionData.push(vertices[triangleProperty.v2 * 3 + 2]);
          positionData.push(vertices[triangleProperty.v3 * 3 + 0]);
          positionData.push(vertices[triangleProperty.v3 * 3 + 1]);
          positionData.push(vertices[triangleProperty.v3 * 3 + 2]);
        }
        geometry.setAttribute("position", new THREE.Float32BufferAttribute(positionData, 3));
        const mesh = new THREE.Mesh(geometry, material);
        meshes.push(mesh);
      }
      return meshes;
    }
    function buildTexturedMesh(texture2dgroup, triangleProperties, meshData, objects2, modelData, textureData, objectData) {
      const geometry = new THREE.BufferGeometry();
      const positionData = [];
      const uvData = [];
      const vertices = meshData.vertices;
      const uvs = texture2dgroup.uvs;
      for (let i = 0, l = triangleProperties.length; i < l; i++) {
        const triangleProperty = triangleProperties[i];
        positionData.push(vertices[triangleProperty.v1 * 3 + 0]);
        positionData.push(vertices[triangleProperty.v1 * 3 + 1]);
        positionData.push(vertices[triangleProperty.v1 * 3 + 2]);
        positionData.push(vertices[triangleProperty.v2 * 3 + 0]);
        positionData.push(vertices[triangleProperty.v2 * 3 + 1]);
        positionData.push(vertices[triangleProperty.v2 * 3 + 2]);
        positionData.push(vertices[triangleProperty.v3 * 3 + 0]);
        positionData.push(vertices[triangleProperty.v3 * 3 + 1]);
        positionData.push(vertices[triangleProperty.v3 * 3 + 2]);
        uvData.push(uvs[triangleProperty.p1 * 2 + 0]);
        uvData.push(uvs[triangleProperty.p1 * 2 + 1]);
        uvData.push(uvs[triangleProperty.p2 * 2 + 0]);
        uvData.push(uvs[triangleProperty.p2 * 2 + 1]);
        uvData.push(uvs[triangleProperty.p3 * 2 + 0]);
        uvData.push(uvs[triangleProperty.p3 * 2 + 1]);
      }
      geometry.setAttribute("position", new THREE.Float32BufferAttribute(positionData, 3));
      geometry.setAttribute("uv", new THREE.Float32BufferAttribute(uvData, 2));
      const texture = getBuild(texture2dgroup, objects2, modelData, textureData, objectData, buildTexture);
      const material = new THREE.MeshPhongMaterial({ map: texture, flatShading: true });
      const mesh = new THREE.Mesh(geometry, material);
      return mesh;
    }
    function buildVertexColorMesh(colorgroup, triangleProperties, meshData, objects2, modelData, objectData) {
      const geometry = new THREE.BufferGeometry();
      const positionData = [];
      const colorData = [];
      const vertices = meshData.vertices;
      const colors = colorgroup.colors;
      for (let i = 0, l = triangleProperties.length; i < l; i++) {
        const triangleProperty = triangleProperties[i];
        const v1 = triangleProperty.v1;
        const v2 = triangleProperty.v2;
        const v3 = triangleProperty.v3;
        positionData.push(vertices[v1 * 3 + 0]);
        positionData.push(vertices[v1 * 3 + 1]);
        positionData.push(vertices[v1 * 3 + 2]);
        positionData.push(vertices[v2 * 3 + 0]);
        positionData.push(vertices[v2 * 3 + 1]);
        positionData.push(vertices[v2 * 3 + 2]);
        positionData.push(vertices[v3 * 3 + 0]);
        positionData.push(vertices[v3 * 3 + 1]);
        positionData.push(vertices[v3 * 3 + 2]);
        const p1 = triangleProperty.p1 !== void 0 ? triangleProperty.p1 : objectData.pindex;
        const p2 = triangleProperty.p2 !== void 0 ? triangleProperty.p2 : p1;
        const p3 = triangleProperty.p3 !== void 0 ? triangleProperty.p3 : p1;
        colorData.push(colors[p1 * 3 + 0]);
        colorData.push(colors[p1 * 3 + 1]);
        colorData.push(colors[p1 * 3 + 2]);
        colorData.push(colors[p2 * 3 + 0]);
        colorData.push(colors[p2 * 3 + 1]);
        colorData.push(colors[p2 * 3 + 2]);
        colorData.push(colors[p3 * 3 + 0]);
        colorData.push(colors[p3 * 3 + 1]);
        colorData.push(colors[p3 * 3 + 2]);
      }
      geometry.setAttribute("position", new THREE.Float32BufferAttribute(positionData, 3));
      geometry.setAttribute("color", new THREE.Float32BufferAttribute(colorData, 3));
      const material = new THREE.MeshPhongMaterial({ vertexColors: true, flatShading: true });
      const mesh = new THREE.Mesh(geometry, material);
      return mesh;
    }
    function buildDefaultMesh(meshData) {
      const geometry = new THREE.BufferGeometry();
      geometry.setIndex(new THREE.BufferAttribute(meshData["triangles"], 1));
      geometry.setAttribute("position", new THREE.BufferAttribute(meshData["vertices"], 3));
      const material = new THREE.MeshPhongMaterial({ color: 11184895, flatShading: true });
      const mesh = new THREE.Mesh(geometry, material);
      return mesh;
    }
    function buildMeshes(resourceMap, meshData, objects2, modelData, textureData, objectData) {
      const keys = Object.keys(resourceMap);
      const meshes = [];
      for (let i = 0, il = keys.length; i < il; i++) {
        const resourceId = keys[i];
        const triangleProperties = resourceMap[resourceId];
        const resourceType = getResourceType(resourceId, modelData);
        switch (resourceType) {
          case "material":
            const basematerials = modelData.resources.basematerials[resourceId];
            const newMeshes = buildBasematerialsMeshes(
              basematerials,
              triangleProperties,
              meshData,
              objects2,
              modelData,
              textureData,
              objectData
            );
            for (let j = 0, jl = newMeshes.length; j < jl; j++) {
              meshes.push(newMeshes[j]);
            }
            break;
          case "texture":
            const texture2dgroup = modelData.resources.texture2dgroup[resourceId];
            meshes.push(
              buildTexturedMesh(
                texture2dgroup,
                triangleProperties,
                meshData,
                objects2,
                modelData,
                textureData,
                objectData
              )
            );
            break;
          case "vertexColors":
            const colorgroup = modelData.resources.colorgroup[resourceId];
            meshes.push(buildVertexColorMesh(colorgroup, triangleProperties, meshData, objects2, modelData, objectData));
            break;
          case "default":
            meshes.push(buildDefaultMesh(meshData));
            break;
          default:
            console.error("THREE.3MFLoader: Unsupported resource type.");
        }
      }
      return meshes;
    }
    function getResourceType(pid, modelData) {
      if (modelData.resources.texture2dgroup[pid] !== void 0) {
        return "texture";
      } else if (modelData.resources.basematerials[pid] !== void 0) {
        return "material";
      } else if (modelData.resources.colorgroup[pid] !== void 0) {
        return "vertexColors";
      } else if (pid === "default") {
        return "default";
      } else {
        return void 0;
      }
    }
    function analyzeObject(modelData, meshData, objectData) {
      const resourceMap = {};
      const triangleProperties = meshData["triangleProperties"];
      const objectPid = objectData.pid;
      for (let i = 0, l = triangleProperties.length; i < l; i++) {
        const triangleProperty = triangleProperties[i];
        let pid = triangleProperty.pid !== void 0 ? triangleProperty.pid : objectPid;
        if (pid === void 0)
          pid = "default";
        if (resourceMap[pid] === void 0)
          resourceMap[pid] = [];
        resourceMap[pid].push(triangleProperty);
      }
      return resourceMap;
    }
    function buildGroup(meshData, objects2, modelData, textureData, objectData) {
      const group = new THREE.Group();
      const resourceMap = analyzeObject(modelData, meshData, objectData);
      const meshes = buildMeshes(resourceMap, meshData, objects2, modelData, textureData, objectData);
      for (let i = 0, l = meshes.length; i < l; i++) {
        group.add(meshes[i]);
      }
      return group;
    }
    function applyExtensions(extensions, meshData, modelXml) {
      if (!extensions) {
        return;
      }
      const availableExtensions = [];
      const keys = Object.keys(extensions);
      for (let i = 0; i < keys.length; i++) {
        const ns = keys[i];
        for (let j = 0; j < scope.availableExtensions.length; j++) {
          const extension = scope.availableExtensions[j];
          if (extension.ns === ns) {
            availableExtensions.push(extension);
          }
        }
      }
      for (let i = 0; i < availableExtensions.length; i++) {
        const extension = availableExtensions[i];
        extension.apply(modelXml, extensions[extension["ns"]], meshData);
      }
    }
    function getBuild(data2, objects2, modelData, textureData, objectData, builder) {
      if (data2.build !== void 0)
        return data2.build;
      data2.build = builder(data2, objects2, modelData, textureData, objectData);
      return data2.build;
    }
    function buildBasematerial(materialData, objects2, modelData) {
      let material;
      const displaypropertiesid = materialData.displaypropertiesid;
      const pbmetallicdisplayproperties = modelData.resources.pbmetallicdisplayproperties;
      if (displaypropertiesid !== null && pbmetallicdisplayproperties[displaypropertiesid] !== void 0) {
        const pbmetallicdisplayproperty = pbmetallicdisplayproperties[displaypropertiesid];
        const metallicData = pbmetallicdisplayproperty.data[materialData.index];
        material = new THREE.MeshStandardMaterial({
          flatShading: true,
          roughness: metallicData.roughness,
          metalness: metallicData.metallicness
        });
      } else {
        material = new THREE.MeshPhongMaterial({ flatShading: true });
      }
      material.name = materialData.name;
      const displaycolor = materialData.displaycolor;
      const color = displaycolor.substring(0, 7);
      material.color.setStyle(color);
      material.color.convertSRGBToLinear();
      if (displaycolor.length === 9) {
        material.opacity = parseInt(displaycolor.charAt(7) + displaycolor.charAt(8), 16) / 255;
      }
      return material;
    }
    function buildComposite(compositeData, objects2, modelData, textureData) {
      const composite = new THREE.Group();
      for (let j = 0; j < compositeData.length; j++) {
        const component = compositeData[j];
        let build2 = objects2[component.objectId];
        if (build2 === void 0) {
          buildObject(component.objectId, objects2, modelData, textureData);
          build2 = objects2[component.objectId];
        }
        const object3D = build2.clone();
        const transform = component.transform;
        if (transform) {
          object3D.applyMatrix4(transform);
        }
        composite.add(object3D);
      }
      return composite;
    }
    function buildObject(objectId, objects2, modelData, textureData) {
      const objectData = modelData["resources"]["object"][objectId];
      if (objectData["mesh"]) {
        const meshData = objectData["mesh"];
        const extensions = modelData["extensions"];
        const modelXml = modelData["xml"];
        applyExtensions(extensions, meshData, modelXml);
        objects2[objectData.id] = getBuild(meshData, objects2, modelData, textureData, objectData, buildGroup);
      } else {
        const compositeData = objectData["components"];
        objects2[objectData.id] = getBuild(compositeData, objects2, modelData, textureData, objectData, buildComposite);
      }
    }
    function buildObjects(data3mf2) {
      const modelsData = data3mf2.model;
      const modelRels = data3mf2.modelRels;
      const objects2 = {};
      const modelsKeys = Object.keys(modelsData);
      const textureData = {};
      if (modelRels) {
        for (let i = 0, l = modelRels.length; i < l; i++) {
          const modelRel = modelRels[i];
          const textureKey = modelRel.target.substring(1);
          if (data3mf2.texture[textureKey]) {
            textureData[modelRel.target] = data3mf2.texture[textureKey];
          }
        }
      }
      for (let i = 0; i < modelsKeys.length; i++) {
        const modelsKey = modelsKeys[i];
        const modelData = modelsData[modelsKey];
        const objectIds = Object.keys(modelData["resources"]["object"]);
        for (let j = 0; j < objectIds.length; j++) {
          const objectId = objectIds[j];
          buildObject(objectId, objects2, modelData, textureData);
        }
      }
      return objects2;
    }
    function fetch3DModelPart(rels) {
      for (let i = 0; i < rels.length; i++) {
        const rel = rels[i];
        const extension = rel.target.split(".").pop();
        if (extension.toLowerCase() === "model")
          return rel;
      }
    }
    function build(objects2, data3mf2) {
      const group = new THREE.Group();
      const relationship = fetch3DModelPart(data3mf2["rels"]);
      const buildData = data3mf2.model[relationship["target"].substring(1)]["build"];
      for (let i = 0; i < buildData.length; i++) {
        const buildItem = buildData[i];
        const object3D = objects2[buildItem["objectId"]];
        const transform = buildItem["transform"];
        if (transform) {
          object3D.applyMatrix4(transform);
        }
        group.add(object3D);
      }
      return group;
    }
    const data3mf = loadDocument(data);
    const objects = buildObjects(data3mf);
    return build(objects, data3mf);
  }
  addExtension(extension) {
    this.availableExtensions.push(extension);
  }
}
exports.ThreeMFLoader = ThreeMFLoader;
//# sourceMappingURL=3MFLoader.cjs.map