import Cartesian3 from '../Core/Cartesian3.js';
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import defaultValue from '../Core/defaultValue.js';
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import defined from '../Core/defined.js';
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import destroyObject from '../Core/destroyObject.js';
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import DeveloperError from '../Core/DeveloperError.js';
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import getStringFromTypedArray from '../Core/getStringFromTypedArray.js';
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import Matrix4 from '../Core/Matrix4.js';
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import RuntimeError from '../Core/RuntimeError.js';
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import when from '../ThirdParty/when.js';
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import Cesium3DTileBatchTable from './Cesium3DTileBatchTable.js';
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import Vector3DTileGeometry from './Vector3DTileGeometry.js';
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/**
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* <p>
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* Implements the {@link Cesium3DTileContent} interface.
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* </p>
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*
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* @alias Geometry3DTileContent
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* @constructor
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*
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* @private
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*/
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function Geometry3DTileContent(tileset, tile, resource, arrayBuffer, byteOffset) {
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this._tileset = tileset;
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this._tile = tile;
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this._resource = resource;
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this._geometries = undefined;
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this._contentReadyPromise = undefined;
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this._readyPromise = when.defer();
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this._batchTable = undefined;
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this._features = undefined;
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/**
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* Part of the {@link Cesium3DTileContent} interface.
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*/
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this.featurePropertiesDirty = false;
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initialize(this, arrayBuffer, byteOffset);
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}
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Object.defineProperties(Geometry3DTileContent.prototype, {
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featuresLength : {
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get : function() {
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return defined(this._batchTable) ? this._batchTable.featuresLength : 0;
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}
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},
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pointsLength : {
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get : function() {
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return 0;
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}
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},
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trianglesLength : {
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get : function() {
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if (defined(this._geometries)) {
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return this._geometries.trianglesLength;
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}
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return 0;
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}
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},
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geometryByteLength : {
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get : function() {
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if (defined(this._geometries)) {
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return this._geometries.geometryByteLength;
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}
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return 0;
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}
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},
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texturesByteLength : {
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get : function() {
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return 0;
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}
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},
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batchTableByteLength : {
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get : function() {
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return defined(this._batchTable) ? this._batchTable.memorySizeInBytes : 0;
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}
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},
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innerContents : {
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get : function() {
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return undefined;
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}
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},
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readyPromise : {
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get : function() {
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return this._readyPromise.promise;
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}
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},
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tileset : {
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get : function() {
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return this._tileset;
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}
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},
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tile : {
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get : function() {
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return this._tile;
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}
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},
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url : {
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get : function() {
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return this._resource.getUrlComponent(true);
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}
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},
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batchTable : {
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get : function() {
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return this._batchTable;
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}
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}
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});
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function createColorChangedCallback(content) {
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return function(batchId, color) {
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if (defined(content._geometries)) {
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content._geometries.updateCommands(batchId, color);
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}
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};
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}
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function getBatchIds(featureTableJson, featureTableBinary) {
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var boxBatchIds;
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var cylinderBatchIds;
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var ellipsoidBatchIds;
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var sphereBatchIds;
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var i;
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var numberOfBoxes = defaultValue(featureTableJson.BOXES_LENGTH, 0);
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var numberOfCylinders = defaultValue(featureTableJson.CYLINDERS_LENGTH, 0);
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var numberOfEllipsoids = defaultValue(featureTableJson.ELLIPSOIDS_LENGTH, 0);
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var numberOfSpheres = defaultValue(featureTableJson.SPHERES_LENGTH, 0);
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if (numberOfBoxes > 0 && defined(featureTableJson.BOX_BATCH_IDS)) {
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var boxBatchIdsByteOffset = featureTableBinary.byteOffset + featureTableJson.BOX_BATCH_IDS.byteOffset;
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boxBatchIds = new Uint16Array(featureTableBinary.buffer, boxBatchIdsByteOffset, numberOfBoxes);
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}
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if (numberOfCylinders > 0 && defined(featureTableJson.CYLINDER_BATCH_IDS)) {
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var cylinderBatchIdsByteOffset = featureTableBinary.byteOffset + featureTableJson.CYLINDER_BATCH_IDS.byteOffset;
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cylinderBatchIds = new Uint16Array(featureTableBinary.buffer, cylinderBatchIdsByteOffset, numberOfCylinders);
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}
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if (numberOfEllipsoids > 0 && defined(featureTableJson.ELLIPSOID_BATCH_IDS)) {
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var ellipsoidBatchIdsByteOffset = featureTableBinary.byteOffset + featureTableJson.ELLIPSOID_BATCH_IDS.byteOffset;
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ellipsoidBatchIds = new Uint16Array(featureTableBinary.buffer, ellipsoidBatchIdsByteOffset, numberOfEllipsoids);
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}
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if (numberOfSpheres > 0 && defined(featureTableJson.SPHERE_BATCH_IDS)) {
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var sphereBatchIdsByteOffset = featureTableBinary.byteOffset + featureTableJson.SPHERE_BATCH_IDS.byteOffset;
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sphereBatchIds = new Uint16Array(featureTableBinary.buffer, sphereBatchIdsByteOffset, numberOfSpheres);
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}
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var atLeastOneDefined = defined(boxBatchIds) || defined(cylinderBatchIds) || defined(ellipsoidBatchIds) || defined(sphereBatchIds);
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var atLeastOneUndefined = (numberOfBoxes > 0 && !defined(boxBatchIds)) ||
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(numberOfCylinders > 0 && !defined(cylinderBatchIds)) ||
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(numberOfEllipsoids > 0 && !defined(ellipsoidBatchIds)) ||
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(numberOfSpheres > 0 && !defined(sphereBatchIds));
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if (atLeastOneDefined && atLeastOneUndefined) {
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throw new RuntimeError('If one group of batch ids is defined, then all batch ids must be defined.');
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}
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var allUndefinedBatchIds = !defined(boxBatchIds) && !defined(cylinderBatchIds) && !defined(ellipsoidBatchIds) && !defined(sphereBatchIds);
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if (allUndefinedBatchIds) {
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var id = 0;
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if (!defined(boxBatchIds) && numberOfBoxes > 0) {
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boxBatchIds = new Uint16Array(numberOfBoxes);
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for (i = 0; i < numberOfBoxes; ++i) {
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boxBatchIds[i] = id++;
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}
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}
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if (!defined(cylinderBatchIds) && numberOfCylinders > 0) {
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cylinderBatchIds = new Uint16Array(numberOfCylinders);
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for (i = 0; i < numberOfCylinders; ++i) {
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cylinderBatchIds[i] = id++;
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}
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}
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if (!defined(ellipsoidBatchIds) && numberOfEllipsoids > 0) {
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ellipsoidBatchIds = new Uint16Array(numberOfEllipsoids);
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for (i = 0; i < numberOfEllipsoids; ++i) {
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ellipsoidBatchIds[i] = id++;
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}
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}
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if (!defined(sphereBatchIds) && numberOfSpheres > 0) {
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sphereBatchIds = new Uint16Array(numberOfSpheres);
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for (i = 0; i < numberOfSpheres; ++i) {
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sphereBatchIds[i] = id++;
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}
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}
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}
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return {
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boxes : boxBatchIds,
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cylinders : cylinderBatchIds,
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ellipsoids : ellipsoidBatchIds,
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spheres : sphereBatchIds
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};
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}
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var sizeOfUint32 = Uint32Array.BYTES_PER_ELEMENT;
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function initialize(content, arrayBuffer, byteOffset) {
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byteOffset = defaultValue(byteOffset, 0);
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var uint8Array = new Uint8Array(arrayBuffer);
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var view = new DataView(arrayBuffer);
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byteOffset += sizeOfUint32; // Skip magic number
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var version = view.getUint32(byteOffset, true);
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if (version !== 1) {
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throw new RuntimeError('Only Geometry tile version 1 is supported. Version ' + version + ' is not.');
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}
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byteOffset += sizeOfUint32;
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var byteLength = view.getUint32(byteOffset, true);
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byteOffset += sizeOfUint32;
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if (byteLength === 0) {
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content._readyPromise.resolve(content);
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return;
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}
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var featureTableJSONByteLength = view.getUint32(byteOffset, true);
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byteOffset += sizeOfUint32;
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if (featureTableJSONByteLength === 0) {
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throw new RuntimeError('Feature table must have a byte length greater than zero');
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}
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var featureTableBinaryByteLength = view.getUint32(byteOffset, true);
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byteOffset += sizeOfUint32;
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var batchTableJSONByteLength = view.getUint32(byteOffset, true);
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byteOffset += sizeOfUint32;
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var batchTableBinaryByteLength = view.getUint32(byteOffset, true);
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byteOffset += sizeOfUint32;
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var featureTableString = getStringFromTypedArray(uint8Array, byteOffset, featureTableJSONByteLength);
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var featureTableJson = JSON.parse(featureTableString);
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byteOffset += featureTableJSONByteLength;
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var featureTableBinary = new Uint8Array(arrayBuffer, byteOffset, featureTableBinaryByteLength);
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byteOffset += featureTableBinaryByteLength;
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var batchTableJson;
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var batchTableBinary;
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if (batchTableJSONByteLength > 0) {
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// PERFORMANCE_IDEA: is it possible to allocate this on-demand? Perhaps keep the
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// arraybuffer/string compressed in memory and then decompress it when it is first accessed.
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//
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// We could also make another request for it, but that would make the property set/get
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// API async, and would double the number of numbers in some cases.
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var batchTableString = getStringFromTypedArray(uint8Array, byteOffset, batchTableJSONByteLength);
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batchTableJson = JSON.parse(batchTableString);
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byteOffset += batchTableJSONByteLength;
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if (batchTableBinaryByteLength > 0) {
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// Has a batch table binary
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batchTableBinary = new Uint8Array(arrayBuffer, byteOffset, batchTableBinaryByteLength);
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// Copy the batchTableBinary section and let the underlying ArrayBuffer be freed
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batchTableBinary = new Uint8Array(batchTableBinary);
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}
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}
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var numberOfBoxes = defaultValue(featureTableJson.BOXES_LENGTH, 0);
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var numberOfCylinders = defaultValue(featureTableJson.CYLINDERS_LENGTH, 0);
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var numberOfEllipsoids = defaultValue(featureTableJson.ELLIPSOIDS_LENGTH, 0);
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var numberOfSpheres = defaultValue(featureTableJson.SPHERES_LENGTH, 0);
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var totalPrimitives = numberOfBoxes + numberOfCylinders + numberOfEllipsoids + numberOfSpheres;
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var batchTable = new Cesium3DTileBatchTable(content, totalPrimitives, batchTableJson, batchTableBinary, createColorChangedCallback(content));
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content._batchTable = batchTable;
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if (totalPrimitives === 0) {
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return;
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}
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var modelMatrix = content.tile.computedTransform;
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var center;
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if (defined(featureTableJson.RTC_CENTER)) {
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center = Cartesian3.unpack(featureTableJson.RTC_CENTER);
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Matrix4.multiplyByPoint(modelMatrix, center, center);
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}
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var batchIds = getBatchIds(featureTableJson, featureTableBinary);
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if (numberOfBoxes > 0 || numberOfCylinders > 0 || numberOfEllipsoids > 0 || numberOfSpheres > 0) {
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var boxes;
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var cylinders;
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var ellipsoids;
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var spheres;
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if (numberOfBoxes > 0) {
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var boxesByteOffset = featureTableBinary.byteOffset + featureTableJson.BOXES.byteOffset;
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boxes = new Float32Array(featureTableBinary.buffer, boxesByteOffset, Vector3DTileGeometry.packedBoxLength * numberOfBoxes);
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}
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if (numberOfCylinders > 0) {
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var cylindersByteOffset = featureTableBinary.byteOffset + featureTableJson.CYLINDERS.byteOffset;
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cylinders = new Float32Array(featureTableBinary.buffer, cylindersByteOffset, Vector3DTileGeometry.packedCylinderLength * numberOfCylinders);
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}
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if (numberOfEllipsoids > 0) {
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var ellipsoidsByteOffset = featureTableBinary.byteOffset + featureTableJson.ELLIPSOIDS.byteOffset;
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ellipsoids = new Float32Array(featureTableBinary.buffer, ellipsoidsByteOffset, Vector3DTileGeometry.packedEllipsoidLength * numberOfEllipsoids);
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}
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if (numberOfSpheres > 0) {
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var spheresByteOffset = featureTableBinary.byteOffset + featureTableJson.SPHERES.byteOffset;
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spheres = new Float32Array(featureTableBinary.buffer, spheresByteOffset, Vector3DTileGeometry.packedSphereLength * numberOfSpheres);
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}
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content._geometries = new Vector3DTileGeometry({
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boxes : boxes,
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boxBatchIds : batchIds.boxes,
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cylinders : cylinders,
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cylinderBatchIds : batchIds.cylinders,
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ellipsoids : ellipsoids,
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ellipsoidBatchIds : batchIds.ellipsoids,
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spheres : spheres,
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sphereBatchIds : batchIds.spheres,
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center : center,
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modelMatrix : modelMatrix,
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batchTable : batchTable,
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boundingVolume : content.tile.boundingVolume.boundingVolume
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});
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}
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}
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function createFeatures(content) {
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var featuresLength = content.featuresLength;
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if (!defined(content._features) && (featuresLength > 0)) {
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var features = new Array(featuresLength);
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if (defined(content._geometries)) {
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content._geometries.createFeatures(content, features);
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}
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content._features = features;
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}
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}
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Geometry3DTileContent.prototype.hasProperty = function(batchId, name) {
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return this._batchTable.hasProperty(batchId, name);
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};
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Geometry3DTileContent.prototype.getFeature = function(batchId) {
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//>>includeStart('debug', pragmas.debug);
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var featuresLength = this.featuresLength;
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if (!defined(batchId) || (batchId < 0) || (batchId >= featuresLength)) {
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throw new DeveloperError('batchId is required and between zero and featuresLength - 1 (' + (featuresLength - 1) + ').');
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}
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//>>includeEnd('debug');
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createFeatures(this);
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return this._features[batchId];
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};
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Geometry3DTileContent.prototype.applyDebugSettings = function(enabled, color) {
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if (defined(this._geometries)) {
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this._geometries.applyDebugSettings(enabled, color);
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}
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};
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Geometry3DTileContent.prototype.applyStyle = function(style) {
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createFeatures(this);
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if (defined(this._geometries)) {
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this._geometries.applyStyle(style, this._features);
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}
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};
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Geometry3DTileContent.prototype.update = function(tileset, frameState) {
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if (defined(this._geometries)) {
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this._geometries.classificationType = this._tileset.classificationType;
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this._geometries.debugWireframe = this._tileset.debugWireframe;
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this._geometries.update(frameState);
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}
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if (defined(this._batchTable) && this._geometries._ready) {
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this._batchTable.update(tileset, frameState);
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}
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if (!defined(this._contentReadyPromise)) {
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var that = this;
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this._contentReadyPromise = this._geometries.readyPromise.then(function() {
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that._readyPromise.resolve(that);
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});
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}
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};
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Geometry3DTileContent.prototype.isDestroyed = function() {
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return false;
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};
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Geometry3DTileContent.prototype.destroy = function() {
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this._geometries = this._geometries && this._geometries.destroy();
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this._batchTable = this._batchTable && this._batchTable.destroy();
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return destroyObject(this);
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};
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export default Geometry3DTileContent;
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