Method addLayers

src/openlayers/mapping/WebMap.js:2008–2270

* @private * @function WebMap.prototype.addLayers * @description 添加叠加图层 * @param {Object} mapInfo - 地图信息

(mapInfo)

   * @param {Object} mapInfo - 地图信息
   */
  async addLayers(mapInfo) {
    let layers = mapInfo.layers,
      that = this;
    let features = [],
      len = layers.length;
    if (len > 0) {
      //存储地图上所有的图层对象
      this.layers = layers;
      for (let index = 0; index < layers.length; index++) {
        const layer = layers[index];
        //加上底图的index
        let layerIndex = index + 1,
          dataSource = layer.dataSource,
          isSampleData = dataSource && dataSource.type === 'SAMPLE_DATA' && !!dataSource.name; //SAMPLE_DATA是本地示例数据
        if (layer.layerType === 'MAPBOXSTYLE') {
          that
            .addMVTMapLayer(mapInfo, layer, layerIndex)
            .then(() => {
              that.layerAdded++;
              that.sendMapToUser(len);
            })
            .catch(function (error) {
              that.layerAdded++;
              that.sendMapToUser(len);
              that.errorCallback && that.errorCallback(error, 'getLayerFaild', that.map);
            });
        } else if (
          (dataSource && dataSource.serverId) ||
          layer.layerType === 'MARKER' ||
          layer.layerType === 'HOSTED_TILE' ||
          isSampleData
        ) {
          //数据存储到iportal上了
          let dataSource = layer.dataSource,
            serverId = dataSource ? dataSource.serverId : layer.serverId;
          if (!serverId && !isSampleData) {
            await that.addLayer(layer, null, layerIndex);
            that.layerAdded++;
            that.sendMapToUser(len);
            continue;
          }
          if (
            layer.layerType === 'MARKER' ||
            (dataSource && (!dataSource.accessType || dataSource.accessType === 'DIRECT')) ||
            isSampleData
          ) {
            //原来二进制文件
            let url = isSampleData
              ? `${that.server}apps/dataviz/libs/sample-datas/${dataSource.name}.json`
              : `${that.server}web/datas/${serverId}/content.json?pageSize=9999999&currentPage=1`;
            url = that.getRequestUrl(url, layer.proxy);
            FetchRequest.get(url, null, {
              withCredentials: that.isCredentail(url, layer.proxy)
            })
              .then(function (response) {
                return response.json();
              })
              .then(async function (data) {