Method updateOverlayLayer

src/common/mapping/WebMapV2.js:3170–3180

(layerInfo, features, mergeByField, featureProjection)

    }

    updateOverlayLayer(layerInfo, features, mergeByField, featureProjection) {
      const originLayerInfo = this._mapInfo.layers.find((layer) => {
        return layer.layerID === layerInfo.id;
      });
      if (features) {
        this._initOverlayLayer(originLayerInfo, features, mergeByField, featureProjection);
      } else {
        const type = this.webMapService.getDatasourceType(originLayerInfo);
        this.getLayerFeatures(originLayerInfo, this._taskID, type);
      }
    }

    isOnlineBaseLayer(url, projection) {
      return (