Initial project import

node_modules/three-stdlib/loaders/AMFLoader.js

@@ -0,0 +1,286 @@
+import { Loader, FileLoader, Group, MeshPhongMaterial, Float32BufferAttribute, Color, BufferGeometry, Mesh } from "three";
+import { unzipSync } from "fflate";
+import { decodeText } from "../_polyfill/LoaderUtils.js";
+class AMFLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const loader = new FileLoader(scope.manager);
+    loader.setPath(scope.path);
+    loader.setResponseType("arraybuffer");
+    loader.setRequestHeader(scope.requestHeader);
+    loader.setWithCredentials(scope.withCredentials);
+    loader.load(
+      url,
+      function(text) {
+        try {
+          onLoad(scope.parse(text));
+        } catch (e) {
+          if (onError) {
+            onError(e);
+          } else {
+            console.error(e);
+          }
+          scope.manager.itemError(url);
+        }
+      },
+      onProgress,
+      onError
+    );
+  }
+  parse(data) {
+    function loadDocument(data2) {
+      let view = new DataView(data2);
+      const magic = String.fromCharCode(view.getUint8(0), view.getUint8(1));
+      if (magic === "PK") {
+        let zip = null;
+        let file = null;
+        console.log("THREE.AMFLoader: Loading Zip");
+        try {
+          zip = unzipSync(new Uint8Array(data2));
+        } catch (e) {
+          if (e instanceof ReferenceError) {
+            console.log("THREE.AMFLoader: fflate missing and file is compressed.");
+            return null;
+          }
+        }
+        for (file in zip) {
+          if (file.toLowerCase().substr(-4) === ".amf") {
+            break;
+          }
+        }
+        console.log("THREE.AMFLoader: Trying to load file asset: " + file);
+        view = new DataView(zip[file].buffer);
+      }
+      const fileText = decodeText(view);
+      const xmlData2 = new DOMParser().parseFromString(fileText, "application/xml");
+      if (xmlData2.documentElement.nodeName.toLowerCase() !== "amf") {
+        console.log("THREE.AMFLoader: Error loading AMF - no AMF document found.");
+        return null;
+      }
+      return xmlData2;
+    }
+    function loadDocumentScale(node) {
+      let scale = 1;
+      let unit = "millimeter";
+      if (node.documentElement.attributes.unit !== void 0) {
+        unit = node.documentElement.attributes.unit.value.toLowerCase();
+      }
+      const scaleUnits = {
+        millimeter: 1,
+        inch: 25.4,
+        feet: 304.8,
+        meter: 1e3,
+        micron: 1e-3
+      };
+      if (scaleUnits[unit] !== void 0) {
+        scale = scaleUnits[unit];
+      }
+      console.log("THREE.AMFLoader: Unit scale: " + scale);
+      return scale;
+    }
+    function loadMaterials(node) {
+      let matName = "AMF Material";
+      const matId = node.attributes.id.textContent;
+      let color = { r: 1, g: 1, b: 1, a: 1 };
+      let loadedMaterial = null;
+      for (let i2 = 0; i2 < node.childNodes.length; i2++) {
+        const matChildEl = node.childNodes[i2];
+        if (matChildEl.nodeName === "metadata" && matChildEl.attributes.type !== void 0) {
+          if (matChildEl.attributes.type.value === "name") {
+            matName = matChildEl.textContent;
+          }
+        } else if (matChildEl.nodeName === "color") {
+          color = loadColor(matChildEl);
+        }
+      }
+      loadedMaterial = new MeshPhongMaterial({
+        flatShading: true,
+        color: new Color(color.r, color.g, color.b),
+        name: matName
+      });
+      if (color.a !== 1) {
+        loadedMaterial.transparent = true;
+        loadedMaterial.opacity = color.a;
+      }
+      return { id: matId, material: loadedMaterial };
+    }
+    function loadColor(node) {
+      const color = { r: 1, g: 1, b: 1, a: 1 };
+      for (let i2 = 0; i2 < node.childNodes.length; i2++) {
+        const matColor = node.childNodes[i2];
+        if (matColor.nodeName === "r") {
+          color.r = matColor.textContent;
+        } else if (matColor.nodeName === "g") {
+          color.g = matColor.textContent;
+        } else if (matColor.nodeName === "b") {
+          color.b = matColor.textContent;
+        } else if (matColor.nodeName === "a") {
+          color.a = matColor.textContent;
+        }
+      }
+      return color;
+    }
+    function loadMeshVolume(node) {
+      const volume = { name: "", triangles: [], materialid: null };
+      let currVolumeNode = node.firstElementChild;
+      if (node.attributes.materialid !== void 0) {
+        volume.materialId = node.attributes.materialid.nodeValue;
+      }
+      while (currVolumeNode) {
+        if (currVolumeNode.nodeName === "metadata") {
+          if (currVolumeNode.attributes.type !== void 0) {
+            if (currVolumeNode.attributes.type.value === "name") {
+              volume.name = currVolumeNode.textContent;
+            }
+          }
+        } else if (currVolumeNode.nodeName === "triangle") {
+          const v1 = currVolumeNode.getElementsByTagName("v1")[0].textContent;
+          const v2 = currVolumeNode.getElementsByTagName("v2")[0].textContent;
+          const v3 = currVolumeNode.getElementsByTagName("v3")[0].textContent;
+          volume.triangles.push(v1, v2, v3);
+        }
+        currVolumeNode = currVolumeNode.nextElementSibling;
+      }
+      return volume;
+    }
+    function loadMeshVertices(node) {
+      const vertArray = [];
+      const normalArray = [];
+      let currVerticesNode = node.firstElementChild;
+      while (currVerticesNode) {
+        if (currVerticesNode.nodeName === "vertex") {
+          let vNode = currVerticesNode.firstElementChild;
+          while (vNode) {
+            if (vNode.nodeName === "coordinates") {
+              const x = vNode.getElementsByTagName("x")[0].textContent;
+              const y = vNode.getElementsByTagName("y")[0].textContent;
+              const z = vNode.getElementsByTagName("z")[0].textContent;
+              vertArray.push(x, y, z);
+            } else if (vNode.nodeName === "normal") {
+              const nx = vNode.getElementsByTagName("nx")[0].textContent;
+              const ny = vNode.getElementsByTagName("ny")[0].textContent;
+              const nz = vNode.getElementsByTagName("nz")[0].textContent;
+              normalArray.push(nx, ny, nz);
+            }
+            vNode = vNode.nextElementSibling;
+          }
+        }
+        currVerticesNode = currVerticesNode.nextElementSibling;
+      }
+      return { vertices: vertArray, normals: normalArray };
+    }
+    function loadObject(node) {
+      const objId = node.attributes.id.textContent;
+      const loadedObject = { name: "amfobject", meshes: [] };
+      let currColor = null;
+      let currObjNode = node.firstElementChild;
+      while (currObjNode) {
+        if (currObjNode.nodeName === "metadata") {
+          if (currObjNode.attributes.type !== void 0) {
+            if (currObjNode.attributes.type.value === "name") {
+              loadedObject.name = currObjNode.textContent;
+            }
+          }
+        } else if (currObjNode.nodeName === "color") {
+          currColor = loadColor(currObjNode);
+        } else if (currObjNode.nodeName === "mesh") {
+          let currMeshNode = currObjNode.firstElementChild;
+          const mesh = { vertices: [], normals: [], volumes: [], color: currColor };
+          while (currMeshNode) {
+            if (currMeshNode.nodeName === "vertices") {
+              const loadedVertices = loadMeshVertices(currMeshNode);
+              mesh.normals = mesh.normals.concat(loadedVertices.normals);
+              mesh.vertices = mesh.vertices.concat(loadedVertices.vertices);
+            } else if (currMeshNode.nodeName === "volume") {
+              mesh.volumes.push(loadMeshVolume(currMeshNode));
+            }
+            currMeshNode = currMeshNode.nextElementSibling;
+          }
+          loadedObject.meshes.push(mesh);
+        }
+        currObjNode = currObjNode.nextElementSibling;
+      }
+      return { id: objId, obj: loadedObject };
+    }
+    const xmlData = loadDocument(data);
+    let amfName = "";
+    let amfAuthor = "";
+    const amfScale = loadDocumentScale(xmlData);
+    const amfMaterials = {};
+    const amfObjects = {};
+    const childNodes = xmlData.documentElement.childNodes;
+    let i, j;
+    for (i = 0; i < childNodes.length; i++) {
+      const child = childNodes[i];
+      if (child.nodeName === "metadata") {
+        if (child.attributes.type !== void 0) {
+          if (child.attributes.type.value === "name") {
+            amfName = child.textContent;
+          } else if (child.attributes.type.value === "author") {
+            amfAuthor = child.textContent;
+          }
+        }
+      } else if (child.nodeName === "material") {
+        const loadedMaterial = loadMaterials(child);
+        amfMaterials[loadedMaterial.id] = loadedMaterial.material;
+      } else if (child.nodeName === "object") {
+        const loadedObject = loadObject(child);
+        amfObjects[loadedObject.id] = loadedObject.obj;
+      }
+    }
+    const sceneObject = new Group();
+    const defaultMaterial = new MeshPhongMaterial({ color: 11184895, flatShading: true });
+    sceneObject.name = amfName;
+    sceneObject.userData.author = amfAuthor;
+    sceneObject.userData.loader = "AMF";
+    for (const id in amfObjects) {
+      const part = amfObjects[id];
+      const meshes = part.meshes;
+      const newObject = new Group();
+      newObject.name = part.name || "";
+      for (i = 0; i < meshes.length; i++) {
+        let objDefaultMaterial = defaultMaterial;
+        const mesh = meshes[i];
+        const vertices = new Float32BufferAttribute(mesh.vertices, 3);
+        let normals = null;
+        if (mesh.normals.length) {
+          normals = new Float32BufferAttribute(mesh.normals, 3);
+        }
+        if (mesh.color) {
+          const color = mesh.color;
+          objDefaultMaterial = defaultMaterial.clone();
+          objDefaultMaterial.color = new Color(color.r, color.g, color.b);
+          if (color.a !== 1) {
+            objDefaultMaterial.transparent = true;
+            objDefaultMaterial.opacity = color.a;
+          }
+        }
+        const volumes = mesh.volumes;
+        for (j = 0; j < volumes.length; j++) {
+          const volume = volumes[j];
+          const newGeometry = new BufferGeometry();
+          let material = objDefaultMaterial;
+          newGeometry.setIndex(volume.triangles);
+          newGeometry.setAttribute("position", vertices.clone());
+          if (normals) {
+            newGeometry.setAttribute("normal", normals.clone());
+          }
+          if (amfMaterials[volume.materialId] !== void 0) {
+            material = amfMaterials[volume.materialId];
+          }
+          newGeometry.scale(amfScale, amfScale, amfScale);
+          newObject.add(new Mesh(newGeometry, material.clone()));
+        }
+      }
+      sceneObject.add(newObject);
+    }
+    return sceneObject;
+  }
+}
+export {
+  AMFLoader
+};
+//# sourceMappingURL=AMFLoader.js.map