Method createTiandituSource

src/openlayers/mapping/WebMap.js:1352–1360

* @private * @function WebMap.prototype.createTiandituSource * @description 创建天地图的source。 * @param layerType 图层类型 * @param projection 地理坐标系 * @param isLabel 是否有路网图层 * @returns {Tianditu} 天地图的source

(layerType, projection, isLabel)

   * @returns {Tianditu} 天地图的source
   */
  createTiandituSource(layerType, projection, isLabel) {
    let options = {
      layerType: layerType.split('_')[1].toLowerCase(),
      isLabel: isLabel || false,
      projection: projection,
      url: `https://t{0-7}.tianditu.gov.cn/{layer}_{proj}/wmts?tk=${this.tiandituKey}`
    };
    return new Tianditu(options);
  }
  /**
   * @private
   * @function WebMap.prototype.createBaiduSource