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| import destroyObject from "../Core/destroyObject.js";
| import DeveloperError from "../Core/DeveloperError.js";
|
| /**
| * Represents empty content for tiles in a
| * {@link https://github.com/CesiumGS/3d-tiles/tree/main/specification|3D Tiles} tileset that
| * do not have content, e.g., because they are used to optimize hierarchical culling.
| * <p>
| * Implements the {@link Cesium3DTileContent} interface.
| * </p>
| *
| * @alias Empty3DTileContent
| * @constructor
| *
| * @private
| */
| function Empty3DTileContent(tileset, tile) {
| this._tileset = tileset;
| this._tile = tile;
|
| this.featurePropertiesDirty = false;
| }
|
| Object.defineProperties(Empty3DTileContent.prototype, {
| featuresLength: {
| get: function () {
| return 0;
| },
| },
|
| pointsLength: {
| get: function () {
| return 0;
| },
| },
|
| trianglesLength: {
| get: function () {
| return 0;
| },
| },
|
| geometryByteLength: {
| get: function () {
| return 0;
| },
| },
|
| texturesByteLength: {
| get: function () {
| return 0;
| },
| },
|
| batchTableByteLength: {
| get: function () {
| return 0;
| },
| },
|
| innerContents: {
| get: function () {
| return undefined;
| },
| },
|
| readyPromise: {
| get: function () {
| return undefined;
| },
| },
|
| tileset: {
| get: function () {
| return this._tileset;
| },
| },
|
| tile: {
| get: function () {
| return this._tile;
| },
| },
|
| url: {
| get: function () {
| return undefined;
| },
| },
|
| batchTable: {
| get: function () {
| return undefined;
| },
| },
|
| groupMetadata: {
| get: function () {
| return undefined;
| },
| set: function (value) {
| throw new DeveloperError("Empty3DTileContent cannot have group metadata");
| },
| },
| });
|
| /**
| * Part of the {@link Cesium3DTileContent} interface. <code>Empty3DTileContent</code>
| * always returns <code>false</code> since a tile of this type does not have any features.
| */
| Empty3DTileContent.prototype.hasProperty = function (batchId, name) {
| return false;
| };
|
| /**
| * Part of the {@link Cesium3DTileContent} interface. <code>Empty3DTileContent</code>
| * always returns <code>undefined</code> since a tile of this type does not have any features.
| */
| Empty3DTileContent.prototype.getFeature = function (batchId) {
| return undefined;
| };
|
| Empty3DTileContent.prototype.applyDebugSettings = function (enabled, color) {};
|
| Empty3DTileContent.prototype.applyStyle = function (style) {};
|
| Empty3DTileContent.prototype.update = function (tileset, frameState) {};
|
| Empty3DTileContent.prototype.isDestroyed = function () {
| return false;
| };
|
| Empty3DTileContent.prototype.destroy = function () {
| return destroyObject(this);
| };
| export default Empty3DTileContent;
|
|
