Method _addBaselayer

src/common/mapping/WebMapV2.js:2610–2656

({
      url,
      layerID,
      parentLayerId,
      visibility = true,
      minzoom = 0,
      maxzoom,
      isIserver = false,
      tileSize = 256,
      bounds
    })

    }

    _addBaselayer({
      url,
      layerID,
      parentLayerId,
      visibility = true,
      minzoom = 0,
      maxzoom,
      isIserver = false,
      tileSize = 256,
      bounds
    }) {
      const source = {
        type: 'raster',
        tiles: url,
        minzoom: minzoom || 0,
        maxzoom: maxzoom || this.map.getMaxZoom() + 1,
        tileSize: isIserver ? this.rasterTileSize : tileSize,
        rasterSource: isIserver ? 'iserver' : '',
        prjCoordSys:
          isIserver && !this.isOnlineBaseLayer(url[0], this.baseProjection) && +this.baseProjection.split(':')[1] > 0
            ? { epsgCode: this.baseProjection.split(':')[1] }
            : '',
        proxy: this.baseLayerProxy
      };
      if (bounds) {
        source.bounds = bounds;
      }
      let sourceId = source;
      if (this.map.getSource(layerID) && (!this.map.getLayer(layerID) || !this.checkSameLayer || !this._isSameRasterLayer(layerID, source))) {
        sourceId = `${layerID}_${+new Date()}`;
        this.map.addSource(sourceId, source);
      }
      this._addLayer(
        {
          id: layerID,
          type: 'raster',
          source: sourceId,
          minzoom: minzoom || 0,
          maxzoom: maxzoom || this.map.getMaxZoom() + 1,
          layout: {
            visibility: this._getVisibility(visibility)
          }
        },
        parentLayerId
      );
      this.baseLayerProxy = null;
    }

    /**
     * @private