133 lines
2.5 KiB
JavaScript
133 lines
2.5 KiB
JavaScript
import destroyObject from "../Core/destroyObject.js";
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import DeveloperError from "../Core/DeveloperError.js";
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/**
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* Represents empty content for tiles in a
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* {@link https://github.com/CesiumGS/3d-tiles/tree/main/specification|3D Tiles} tileset that
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* do not have content, e.g., because they are used to optimize hierarchical culling.
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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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* @implements Cesium3DTileContent
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* @private
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*/
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class Empty3DTileContent {
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constructor(tileset, tile) {
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this._tileset = tileset;
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this._tile = tile;
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this.featurePropertiesDirty = false;
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}
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get featuresLength() {
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return 0;
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}
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get pointsLength() {
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return 0;
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}
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get trianglesLength() {
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return 0;
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}
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get geometryByteLength() {
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return 0;
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}
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get texturesByteLength() {
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return 0;
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}
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get batchTableByteLength() {
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return 0;
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}
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get innerContents() {
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return undefined;
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}
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/**
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* Returns true when the tile's content is ready to render; otherwise false
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*
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*
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* @type {boolean}
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* @readonly
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* @private
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*/
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get ready() {
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return true;
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}
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get tileset() {
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return this._tileset;
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}
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get tile() {
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return this._tile;
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}
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get url() {
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return undefined;
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}
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get metadata() {
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return undefined;
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}
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set metadata(value) {
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//>>includeStart('debug', pragmas.debug);
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throw new DeveloperError("Empty3DTileContent cannot have content metadata");
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//>>includeEnd('debug');
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}
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get batchTable() {
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return undefined;
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}
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get group() {
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return undefined;
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}
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set group(value) {
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//>>includeStart('debug', pragmas.debug);
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throw new DeveloperError("Empty3DTileContent cannot have group metadata");
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//>>includeEnd('debug');
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}
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/**
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* Part of the {@link Cesium3DTileContent} interface. <code>Empty3DTileContent</code>
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* always returns <code>false</code> since a tile of this type does not have any features.
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*/
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hasProperty(batchId, name) {
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return false;
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}
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/**
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* Part of the {@link Cesium3DTileContent} interface. <code>Empty3DTileContent</code>
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* always returns <code>undefined</code> since a tile of this type does not have any features.
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*/
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getFeature(batchId) {
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return undefined;
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}
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applyDebugSettings(enabled, color) {}
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applyStyle(style) {}
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update(tileset, frameState) {}
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pick(ray, frameState, result) {
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return undefined;
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}
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isDestroyed() {
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return false;
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}
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destroy() {
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return destroyObject(this);
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}
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}
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export default Empty3DTileContent;
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