Method _changeSourceListModel

src/common/mapping/WebMapV2.js:3061–3103

()

    }

    _changeSourceListModel() {
      const layersFromMapInfo = [];
      const layerList = [this._mapInfo.baseLayer].concat(this._mapInfo.layers);
      if (this._graticuleLayer) {
        const { id: layerID, visible } = this._graticuleLayer;
        layerList.push({ layerID, visible, name: 'GraticuleLayer' });
      }
      // this._mapInfo.layers 是有序的
      layerList.forEach((layerInfo) => {
        const targetLayerId = layerInfo.layerID || layerInfo.name;
        const targetLayerVisible =
          layerInfo.visible === void 0 || layerInfo.visible === 'visible' || layerInfo.visible === true;
        const matchCacheData = this._cacheLayerId.get(targetLayerId);
        if (matchCacheData) {
          const renderLayers = matchCacheData.renderLayers.map((item) => item.layerId);
          if (!renderLayers.length) {
            return;
          }
          layersFromMapInfo.push({
            ...layerInfo,
            ...matchCacheData,
            id: targetLayerId,
            visible: targetLayerVisible,
            renderLayers,
            reused: matchCacheData.renderLayers.some((item) => item.reused)
          });
        }
      });
      if (!this._sourceListModel) {
        this._sourceListModel = new SourceListModelV2({
          map: this.map,
          layers: layersFromMapInfo,
          appendLayers: this._appendLayers
        });
        this._sourceListModel.on({
          layerupdatechanged: (params) => {
            this.fire('layerupdatechanged', params);
          }
        });
        return;
      }
      this._sourceListModel.setLayers(layersFromMapInfo);
    }

    _getSelfAppreciableLayers(appreciableLayers) {
      return {