Method _createMap

src/common/mapping/WebMapBase.js:655–693

(type, mapInfo)

    }

    _createMap(type, mapInfo) {
      const commonOptions = {
        ...this.options,
        iportalServiceProxyUrlPrefix: this.webMapService.iportalServiceProxyUrl
      };
      const commonEvents = {
        ...this.eventTypes.reduce((events, name) => {
          events[name] = (params) => {
            this._fire(name, params);
          };
          return events;
        }, {}),
        mapinitialized: this._mapInitializedHandler,
        mapcreatesucceeded: this._mapCreateSucceededHandler,
        layeraddchanged: this._addLayerChangedHandler
      };
      const mapOptions = cloneDeep(this.mapOptions);
      /**
       * @constructor
       * @private
       */
      const WebMapFactory = this._createWebMapFactory(type);
      const mapId = this.mapId || this.webMapInfo;
      this._handler = new WebMapFactory(mapId, commonOptions, mapOptions);
      for (const type in commonEvents) {
        this._handler.on(type, commonEvents[type]);
      }
      let _mapInfo = {};
      const layerFilter = this.options.layerFilter;
      if (mapInfo) {
        _mapInfo = {
          ...mapInfo,
          layers: typeof layerFilter === 'function' ? mapInfo.layers.filter(layerFilter) : mapInfo.layers
        };
      }
      this.type = type;
      // initializeMap 完成3个步骤：1. 注册投影 2. 判断投影与存在的map是否一致 3. 创建地图
      this._handler.initializeMap(_mapInfo, this.map);
    }

    _updateRasterSource(sourceId, options) {
      if (!sourceId) {