import Check from "../Core/Check.js"; import defaultValue from "../Core/defaultValue.js"; import defined from "../Core/defined.js"; /** * A property table for use with the EXT_structural_metadata extension or * legacy EXT_feature_metadata glTF extension. It also includes some * options to be compatible with the 3D Tiles 1.0 batch table. *

* For batch tables, properties are resolved in the following order: *

*
    *
  1. binary properties from options.metadataTable
  2. *
  3. JSON properties from options.jsonMetadataTable
  4. *
  5. batch table hierarchy properties from options.batchTableHierarchy
  6. *
*

* See the {@link https://github.com/CesiumGS/glTF/tree/3d-tiles-next/extensions/2.0/Vendor/EXT_structural_metadata|EXT_structural_metadata Extension} as well as the * previous {@link https://github.com/CesiumGS/glTF/tree/3d-tiles-next/extensions/2.0/Vendor/EXT_feature_metadata|EXT_feature_metadata Extension} for glTF. *

* * @param {Object} options Object with the following properties: * @param {String} [options.name] Human-readable name to describe the table * @param {String|Number} [options.id] A unique id to identify the property table, useful for debugging. For EXT_structural_metadata, this is the array index in the property tables array, for EXT_feature_metadata this is the dictionary key in the property tables dictionary. * @param {Number} options.count The number of features in the table. * @param {MetadataTable} [options.metadataTable] A table of binary properties. * @param {JsonMetadataTable} [options.jsonMetadataTable] For compatibility with the old batch table, free-form JSON properties can be passed in. * @param {BatchTableHierarchy} [options.batchTableHierarchy] For compatibility with the 3DTILES_batch_table_hierarchy extension, a hierarchy can be provided. * @param {Object} [options.extras] Extra user-defined properties * @param {Object} [options.extensions] An object containing extensions * * @alias PropertyTable * @constructor * * @private * @experimental This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy. */ function PropertyTable(options) { options = defaultValue(options, defaultValue.EMPTY_OBJECT); //>>includeStart('debug', pragmas.debug); Check.typeOf.number("options.count", options.count); //>>includeEnd('debug'); this._name = options.name; this._id = options.id; this._count = options.count; this._extras = options.extras; this._extensions = options.extensions; this._metadataTable = options.metadataTable; this._jsonMetadataTable = options.jsonMetadataTable; this._batchTableHierarchy = options.batchTableHierarchy; } Object.defineProperties(PropertyTable.prototype, { /** * A human-readable name for this table * * @memberof PropertyTable.prototype * @type {String} * @readonly * @private */ name: { get: function () { return this._name; }, }, /** * An identifier for this table. Useful for debugging. * * @memberof PropertyTable.prototype * @type {String|Number} * @readonly * @private */ id: { get: function () { return this._id; }, }, /** * The number of features in the table. * * @memberof PropertyTable.prototype * @type {Number} * @readonly * @private */ count: { get: function () { return this._count; }, }, /** * The class that properties conform to. * * @memberof PropertyTable.prototype * @type {MetadataClass} * @readonly */ class: { get: function () { if (defined(this._metadataTable)) { return this._metadataTable.class; } return undefined; }, }, /** * Extras in the JSON object. * * @memberof PropertyTable.prototype * @type {*} * @readonly * @private */ extras: { get: function () { return this._extras; }, }, /** * Extensions in the JSON object. * * @memberof PropertyTable.prototype * @type {Object} * @readonly * @private */ extensions: { get: function () { return this._extensions; }, }, }); /** * Returns whether the feature has this property. For compatibility with the 3DTILES_batch_table_hierarchy extension, this is computed for a specific feature. * * @param {Number} index The index of the feature. * @param {String} propertyId The case-sensitive ID of the property. * @returns {Boolean} Whether the feature has this property. * @private */ PropertyTable.prototype.hasProperty = function (index, propertyId) { //>>includeStart('debug', pragmas.debug); Check.typeOf.number("index", index); Check.typeOf.string("propertyId", propertyId); //>>includeEnd('debug'); if ( defined(this._metadataTable) && this._metadataTable.hasProperty(propertyId) ) { return true; } if ( defined(this._jsonMetadataTable) && this._jsonMetadataTable.hasProperty(propertyId) ) { return true; } if ( defined(this._batchTableHierarchy) && this._batchTableHierarchy.hasProperty(index, propertyId) ) { return true; } return false; }; /** * Returns whether the feature has a property with the given semantic. * * @param {String} semantic The case-sensitive semantic of the property. * @returns {Boolean} Whether the feature has a property with the given semantic. * @private */ PropertyTable.prototype.hasPropertyBySemantic = function (index, semantic) { //>>includeStart('debug', pragmas.debug); Check.typeOf.number("index", index); Check.typeOf.string("semantic", semantic); //>>includeEnd('debug'); if (defined(this._metadataTable)) { return this._metadataTable.hasPropertyBySemantic(semantic); } return false; }; /** * Returns whether any feature has this property. * This is mainly useful for checking whether a property exists in the class * hierarchy when using the 3DTILES_batch_table_hierarchy extension. * * @param {String} propertyId The case-sensitive ID of the property. * @returns {Boolean} Whether any feature has this property. * @private */ PropertyTable.prototype.propertyExists = function (propertyId) { //>>includeStart('debug', pragmas.debug); Check.typeOf.string("propertyId", propertyId); //>>includeEnd('debug'); if ( defined(this._metadataTable) && this._metadataTable.hasProperty(propertyId) ) { return true; } if ( defined(this._jsonMetadataTable) && this._jsonMetadataTable.hasProperty(propertyId) ) { return true; } if ( defined(this._batchTableHierarchy) && this._batchTableHierarchy.propertyExists(propertyId) ) { return true; } return false; }; /** * Returns whether any feature has a property with the given semantic. * * @param {String} semantic The case-sensitive semantic of the property. * @returns {Boolean} Whether any feature has a property with the given semantic. * @private */ PropertyTable.prototype.propertyExistsBySemantic = function (semantic) { //>>includeStart('debug', pragmas.debug); Check.typeOf.string("semantic", semantic); //>>includeEnd('debug'); if (defined(this._metadataTable)) { return this._metadataTable.hasPropertyBySemantic(semantic); } return false; }; const scratchResults = []; /** * Returns an array of property IDs. For compatibility with the 3DTILES_batch_table_hierarchy extension, this is computed for a specific feature. * * @param {Number} index The index of the feature. * @param {String[]} [results] An array into which to store the results. * @returns {String[]} The property IDs. * @private */ PropertyTable.prototype.getPropertyIds = function (index, results) { results = defined(results) ? results : []; results.length = 0; if (defined(this._metadataTable)) { // concat in place to avoid unnecessary array allocation results.push.apply( results, this._metadataTable.getPropertyIds(scratchResults) ); } if (defined(this._jsonMetadataTable)) { results.push.apply( results, this._jsonMetadataTable.getPropertyIds(scratchResults) ); } if (defined(this._batchTableHierarchy)) { results.push.apply( results, this._batchTableHierarchy.getPropertyIds(index, scratchResults) ); } return results; }; /** * Returns a copy of the value of the property with the given ID. *

* If the property is normalized the normalized value is returned. *

* * @param {Number} index The index of the feature. * @param {String} propertyId The case-sensitive ID of the property. * @returns {*} The value of the property or undefined if the feature does not have this property. * @private */ PropertyTable.prototype.getProperty = function (index, propertyId) { let result; if (defined(this._metadataTable)) { result = this._metadataTable.getProperty(index, propertyId); if (defined(result)) { return result; } } if (defined(this._jsonMetadataTable)) { result = this._jsonMetadataTable.getProperty(index, propertyId); if (defined(result)) { return result; } } if (defined(this._batchTableHierarchy)) { result = this._batchTableHierarchy.getProperty(index, propertyId); if (defined(result)) { return result; } } return undefined; }; /** * Sets the value of the property with the given ID. *

* If the property is normalized a normalized value must be provided to this function. *

* * @param {Number} index The index of the feature. * @param {String} propertyId The case-sensitive ID of the property. * @param {*} value The value of the property that will be copied. * @returns {Boolean} true if the property was set, false otherwise. * @private */ PropertyTable.prototype.setProperty = function (index, propertyId, value) { if ( defined(this._metadataTable) && this._metadataTable.setProperty(index, propertyId, value) ) { return true; } if ( defined(this._jsonMetadataTable) && this._jsonMetadataTable.setProperty(index, propertyId, value) ) { return true; } return ( defined(this._batchTableHierarchy) && this._batchTableHierarchy.setProperty(index, propertyId, value) ); }; /** * Returns a copy of the value of the property with the given semantic. *

* This only operates on the underlying {@link MetadataTable} (if present) as * {@link JsonMetadataTable} and {@link BatchTableHierarchy} do not have * semantics. *

* * @param {Number} index The index of the feature. * @param {String} semantic The case-sensitive semantic of the property. * @returns {*} The value of the property or undefined if the feature does not have this semantic. * @private */ PropertyTable.prototype.getPropertyBySemantic = function (index, semantic) { if (defined(this._metadataTable)) { return this._metadataTable.getPropertyBySemantic(index, semantic); } return undefined; }; /** * Sets the value of the property with the given semantic. *

* This only operates on the underlying {@link MetadataTable} (if present) as * {@link JsonMetadataTable} and {@link BatchTableHierarchy} do not have * semantics. *

* * @param {Number} index The index of the feature. * @param {String} semantic The case-sensitive semantic of the property. * @param {*} value The value of the property that will be copied. * @returns {Boolean} true if the property was set, false otherwise. * @private */ PropertyTable.prototype.setPropertyBySemantic = function ( index, semantic, value ) { if (defined(this._metadataTable)) { return this._metadataTable.setPropertyBySemantic(index, semantic, value); } return false; }; /** * Returns a typed array containing the property values for a given propertyId. *

* This only operates on the underlying {@link MetadataTable} (if present) as * {@link JsonMetadataTable} and {@link BatchTableHierarchy} do not store * values in typed arrays. *

* * @param {String} propertyId The case-sensitive ID of the property. * @returns {*} The typed array containing the property values or undefined if the property values are not stored in a typed array. * * @private */ PropertyTable.prototype.getPropertyTypedArray = function (propertyId) { //>>includeStart('debug', pragmas.debug); Check.typeOf.string("propertyId", propertyId); //>>includeEnd('debug'); if (defined(this._metadataTable)) { return this._metadataTable.getPropertyTypedArray(propertyId); } return undefined; }; /** * Returns a typed array containing the property values for the property with the given semantic. *

* This only operates on the underlying {@link MetadataTable} (if present) as * {@link JsonMetadataTable} and {@link BatchTableHierarchy} do not have * semantics. *

* * @param {String} semantic The case-sensitive semantic of the property. * @returns {*} The typed array containing the property values or undefined if the property values are not stored in a typed array. * * @private */ PropertyTable.prototype.getPropertyTypedArrayBySemantic = function (semantic) { //>>includeStart('debug', pragmas.debug); Check.typeOf.string("semantic", semantic); //>>includeEnd('debug'); if (defined(this._metadataTable)) { return this._metadataTable.getPropertyTypedArrayBySemantic(semantic); } return undefined; }; export default PropertyTable;