add Potree (version 1.8)

PointCloudWeb.Web/public/Potree/libs/three.js/loaders/obj2/shared/MeshReceiver.js

@@ -0,0 +1,313 @@
+/**
+ * Development repository: https://github.com/kaisalmen/WWOBJLoader
+ */
+
+import {
+	BufferAttribute,
+	BufferGeometry,
+	LineSegments,
+	Mesh,
+	Points
+} from '../../../../../build/three.module.js';
+
+
+/**
+ *
+ * @param {MaterialHandler} materialHandler
+ * @constructor
+ */
+const MeshReceiver = function ( materialHandler ) {
+
+	this.logging = {
+		enabled: false,
+		debug: false
+	};
+
+	this.callbacks = {
+		onProgress: null,
+		onMeshAlter: null
+	};
+	this.materialHandler = materialHandler;
+
+};
+
+MeshReceiver.prototype = {
+
+	constructor: MeshReceiver,
+
+	/**
+	 * Enable or disable logging in general (except warn and error), plus enable or disable debug logging.
+	 *
+	 * @param {boolean} enabled True or false.
+	 * @param {boolean} debug True or false.
+	 */
+	setLogging:	function ( enabled, debug ) {
+
+		this.logging.enabled = enabled === true;
+		this.logging.debug = debug === true;
+
+	},
+
+	/**
+	 *
+	 * @param {Function} onProgress
+	 * @param {Function} onMeshAlter
+	 * @private
+	 */
+	_setCallbacks: function ( onProgress, onMeshAlter ) {
+
+		if ( onProgress !== null && onProgress !== undefined && onProgress instanceof Function ) {
+
+			this.callbacks.onProgress = onProgress;
+
+		}
+
+		if ( onMeshAlter !== null && onMeshAlter !== undefined && onMeshAlter instanceof Function ) {
+
+			this.callbacks.onMeshAlter = onMeshAlter;
+
+		}
+
+	},
+
+	/**
+	 * Builds one or multiple meshes from the data described in the payload (buffers, params, material info).
+	 *
+	 * @param {Object} meshPayload Raw mesh description (buffers, params, materials) used to build one to many meshes.
+	 * @returns {Mesh[]} mesh Array of {@link Mesh}
+	 */
+	buildMeshes: function ( meshPayload ) {
+
+		const meshName = meshPayload.params.meshName;
+		const buffers = meshPayload.buffers;
+
+		const bufferGeometry = new BufferGeometry();
+		if ( buffers.vertices !== undefined && buffers.vertices !== null ) {
+
+			bufferGeometry.setAttribute( 'position', new BufferAttribute( new Float32Array( buffers.vertices ), 3 ) );
+
+		}
+
+		if ( buffers.indices !== undefined && buffers.indices !== null ) {
+
+			bufferGeometry.setIndex( new BufferAttribute( new Uint32Array( buffers.indices ), 1 ) );
+
+		}
+
+		if ( buffers.colors !== undefined && buffers.colors !== null ) {
+
+			bufferGeometry.setAttribute( 'color', new BufferAttribute( new Float32Array( buffers.colors ), 3 ) );
+
+		}
+
+		if ( buffers.normals !== undefined && buffers.normals !== null ) {
+
+			bufferGeometry.setAttribute( 'normal', new BufferAttribute( new Float32Array( buffers.normals ), 3 ) );
+
+		} else {
+
+			bufferGeometry.computeVertexNormals();
+
+		}
+
+		if ( buffers.uvs !== undefined && buffers.uvs !== null ) {
+
+			bufferGeometry.setAttribute( 'uv', new BufferAttribute( new Float32Array( buffers.uvs ), 2 ) );
+
+		}
+
+		if ( buffers.skinIndex !== undefined && buffers.skinIndex !== null ) {
+
+			bufferGeometry.setAttribute( 'skinIndex', new BufferAttribute( new Uint16Array( buffers.skinIndex ), 4 ) );
+
+		}
+
+		if ( buffers.skinWeight !== undefined && buffers.skinWeight !== null ) {
+
+			bufferGeometry.setAttribute( 'skinWeight', new BufferAttribute( new Float32Array( buffers.skinWeight ), 4 ) );
+
+		}
+
+		let material, materialName, key;
+		const materialNames = meshPayload.materials.materialNames;
+		const createMultiMaterial = meshPayload.materials.multiMaterial;
+		const multiMaterials = [];
+
+		for ( key in materialNames ) {
+
+			materialName = materialNames[ key ];
+			material = this.materialHandler.getMaterial( materialName );
+			if ( createMultiMaterial ) multiMaterials.push( material );
+
+		}
+
+		if ( createMultiMaterial ) {
+
+			material = multiMaterials;
+			const materialGroups = meshPayload.materials.materialGroups;
+			let materialGroup;
+			for ( key in materialGroups ) {
+
+				materialGroup = materialGroups[ key ];
+				bufferGeometry.addGroup( materialGroup.start, materialGroup.count, materialGroup.index );
+
+			}
+
+		}
+
+		const meshes = [];
+		let mesh;
+		let callbackOnMeshAlterResult;
+		let useOrgMesh = true;
+		const geometryType = meshPayload.geometryType === null ? 0 : meshPayload.geometryType;
+
+		if ( this.callbacks.onMeshAlter ) {
+
+			callbackOnMeshAlterResult = this.callbacks.onMeshAlter(
+				{
+					detail: {
+						meshName: meshName,
+						bufferGeometry: bufferGeometry,
+						material: material,
+						geometryType: geometryType
+					}
+				}
+			);
+
+		}
+
+		// here LoadedMeshUserOverride is required to be provided by the callback used to alter the results
+		if ( callbackOnMeshAlterResult ) {
+
+			if ( callbackOnMeshAlterResult.isDisregardMesh() ) {
+
+				useOrgMesh = false;
+
+			} else if ( callbackOnMeshAlterResult.providesAlteredMeshes() ) {
+
+				for ( const i in callbackOnMeshAlterResult.meshes ) {
+
+					meshes.push( callbackOnMeshAlterResult.meshes[ i ] );
+
+				}
+
+				useOrgMesh = false;
+
+			}
+
+		}
+
+		if ( useOrgMesh ) {
+
+			if ( meshPayload.computeBoundingSphere ) bufferGeometry.computeBoundingSphere();
+			if ( geometryType === 0 ) {
+
+				mesh = new Mesh( bufferGeometry, material );
+
+			} else if ( geometryType === 1 ) {
+
+				mesh = new LineSegments( bufferGeometry, material );
+
+			} else {
+
+				mesh = new Points( bufferGeometry, material );
+
+			}
+
+			mesh.name = meshName;
+			meshes.push( mesh );
+
+		}
+
+		let progressMessage = meshPayload.params.meshName;
+		if ( meshes.length > 0 ) {
+
+			const meshNames = [];
+			for ( const i in meshes ) {
+
+				mesh = meshes[ i ];
+				meshNames[ i ] = mesh.name;
+
+			}
+
+			progressMessage += ': Adding mesh(es) (' + meshNames.length + ': ' + meshNames + ') from input mesh: ' + meshName;
+			progressMessage += ' (' + ( meshPayload.progress.numericalValue * 100 ).toFixed( 2 ) + '%)';
+
+		} else {
+
+			progressMessage += ': Not adding mesh: ' + meshName;
+			progressMessage += ' (' + ( meshPayload.progress.numericalValue * 100 ).toFixed( 2 ) + '%)';
+
+		}
+
+		if ( this.callbacks.onProgress ) {
+
+			this.callbacks.onProgress( 'progress', progressMessage, meshPayload.progress.numericalValue );
+
+		}
+
+		return meshes;
+
+	}
+
+};
+
+/**
+ * Object to return by callback onMeshAlter. Used to disregard a certain mesh or to return one to many meshes.
+ * @class
+ *
+ * @param {boolean} disregardMesh=false Tell implementation to completely disregard this mesh
+ * @param {boolean} disregardMesh=false Tell implementation that mesh(es) have been altered or added
+ */
+const LoadedMeshUserOverride = function ( disregardMesh, alteredMesh ) {
+
+	this.disregardMesh = disregardMesh === true;
+	this.alteredMesh = alteredMesh === true;
+	this.meshes = [];
+
+};
+
+
+LoadedMeshUserOverride.prototype = {
+
+	constructor: LoadedMeshUserOverride,
+
+	/**
+	 * Add a mesh created within callback.
+	 *
+	 * @param {Mesh} mesh
+	 */
+	addMesh: function ( mesh ) {
+
+		this.meshes.push( mesh );
+		this.alteredMesh = true;
+
+	},
+
+	/**
+	 * Answers if mesh shall be disregarded completely.
+	 *
+	 * @returns {boolean}
+	 */
+	isDisregardMesh: function () {
+
+		return this.disregardMesh;
+
+	},
+
+	/**
+	 * Answers if new mesh(es) were created.
+	 *
+	 * @returns {boolean}
+	 */
+	providesAlteredMeshes: function () {
+
+		return this.alteredMesh;
+
+	}
+};
+
+export {
+	MeshReceiver,
+	LoadedMeshUserOverride
+};