casc-cesium
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Vue 3.x components for CesiumJS.
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{"version":3,"file":"TencentImageryProvider.mjs","sources":["../../../../../../packages/components/providers/tencent/TencentImageryProvider.ts"],"sourcesContent":["import defer from 'casc-cesium-utils/defer'\n\n/*\n * @Author: zouyaoji@https://github.com/zouyaoji\n * @Date: 2022-03-30 16:10:02\n * @LastEditTime: 2022-05-14 17:58:25\n * @LastEditors: zouyaoji\n * @Description:\n * @FilePath: \\vue-cesium@next\\packages\\components\\providers\\tencent\\TencentImageryProvider.ts\n */\nconst TILE_URL = {\n img: '//p{s}.map.gtimg.com/sateTiles/{z}/{sx}/{sy}/{x}_{reverseY}.jpg&scene=0',\n terrain: '//p{s}.map.gtimg.com/demTiles/{z}/{sx}/{sy}/{x}_{reverseY}.jpg&scene=0',\n vector: '//rt{s}.map.gtimg.com/tile?z={z}&x={x}&y={reverseY}&type=vector&styleid={style}&scene=0'\n}\n\nclass TencentImageryProvider {\n _url: string\n _ready: boolean\n _resource: any\n _tileDiscardPolicy: any\n _tileWidth: number\n _tileHeight: number\n _minimumLevel: any\n _maximumLevel: any\n _tilingScheme: Cesium.GeographicTilingScheme | Cesium.WebMercatorTilingScheme\n _rectangle: any\n _credit: any\n enablePickFeatures: any\n _hasAlphaChannel: any\n _subdomains: any\n _errorEvent: any\n _readyPromise: any\n _style: string\n constructor(options) {\n const { Resource, defaultValue, Credit, Event } = Cesium\n this._subdomains = options.subdomains || ['1', '2', '3']\n this._url = options.url || [options.protocol || '', TILE_URL[options.mapStyle] || TILE_URL['vector']].join('')\n\n const resource = (Resource as any).createIfNeeded(this._url)\n resource.appendForwardSlash()\n\n this._ready = false\n this._resource = resource\n this._tileDiscardPolicy = options.tileDiscardPolicy\n this._tileWidth = 256\n this._tileHeight = 256\n this._minimumLevel = options.minimumLevel || 0\n this._maximumLevel = options.maximumLevel || 20\n this._tilingScheme = new Cesium.WebMercatorTilingScheme()\n this._rectangle = defaultValue(options.rectangle, this._tilingScheme.rectangle)\n let credit = options.credit\n if (typeof credit === 'string') {\n credit = new Credit(credit)\n }\n this._credit = credit\n this.enablePickFeatures = defaultValue(options.enablePickFeatures, false)\n this._hasAlphaChannel = defaultValue(options.hasAlphaChannel, true)\n this._errorEvent = new Event()\n this._readyPromise = defer()\n this._ready = true\n this._readyPromise.resolve(true)\n this._style = options.styleId\n }\n\n get url() {\n return this._resource._url\n }\n\n get proxy() {\n return this._resource.proxy\n }\n\n get tileWidth() {\n if (!this._ready) {\n throw new Cesium.DeveloperError('tileWidth must not be called before the imagery provider is ready.')\n }\n return this._tileWidth\n }\n\n get tileHeight() {\n if (!this._ready) {\n throw new Cesium.DeveloperError('tileHeight must not be called before the imagery provider is ready.')\n }\n return this._tileHeight\n }\n\n get maximumLevel() {\n if (!this._ready) {\n throw new Cesium.DeveloperError('maximumLevel must not be called before the imagery provider is ready.')\n }\n return this._maximumLevel\n }\n\n get minimumLevel() {\n if (!this.ready) {\n throw new Cesium.DeveloperError('minimumLevel must not be called before the imagery provider is ready.')\n }\n return this._minimumLevel\n }\n\n get tilingScheme() {\n if (!this._ready) {\n throw new Cesium.DeveloperError('tilingScheme must not be called before the imagery provider is ready.')\n }\n return this._tilingScheme\n }\n\n get rectangle() {\n if (!this.ready) {\n throw new Cesium.DeveloperError('rectangle must not be called before the imagery provider is ready.')\n }\n return this._rectangle\n }\n\n get tileDiscardPolicy() {\n if (!this.ready) {\n throw new Cesium.DeveloperError('tileDiscardPolicy must not be called before the imagery provider is ready.')\n }\n return this._tileDiscardPolicy\n }\n\n get errorEvent() {\n return this._errorEvent\n }\n\n get ready() {\n return this._ready\n }\n\n get readyPromise() {\n return this._readyPromise.promise\n }\n\n get credit() {\n if (!this.ready) {\n throw new Cesium.DeveloperError('credit must not be called before the imagery provider is ready.')\n }\n return this._credit\n }\n\n get hasAlphaChannel() {\n if (!this.ready) {\n throw new Cesium.DeveloperError('hasAlphaChannel must not be called before the imagery provider is ready.')\n }\n return this._hasAlphaChannel\n }\n\n getTileCredits(x, y, level) {\n if (!this.ready) {\n throw new Cesium.DeveloperError('getTileCredits must not be called before the imagery provider is ready.')\n }\n return undefined\n }\n\n requestImage(x, y, level, request) {\n if (!this.ready) {\n throw new Cesium.DeveloperError('requestImage must not be called before the imagery provider is ready.')\n }\n return Cesium.ImageryProvider.loadImage(this as any, buildImageResource.call(this, x, y, level, request))\n }\n\n pickFeatures(x, y, level, longitude, latitude) {\n return undefined\n }\n}\n\nfunction buildImageResource(this, x, y, level, request) {\n let url = this._url\n const subdomains = this._subdomains\n const reverseY = this.tilingScheme.getNumberOfYTilesAtLevel(level) - y - 1\n url = url\n .replace('{s}', subdomains[(x + y + level) % subdomains.length])\n .replace('{style}', this._style)\n .replace('{x}', x)\n .replace('{y}', -y)\n .replace('{z}', level)\n .replace('{sx}', x >> 4)\n .replace('{sy}', ((1 << level) - y) >> 4)\n .replace('{reverseY}', reverseY)\n const resource = this._resource.getDerivedResource({\n url: url,\n request: request\n })\n return resource\n}\n\nexport default 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