Method addVectorTileLayer

src/openlayers/mapping/WebMap.js:3072–3092

* @private * @function WebMap.prototype.addVectorTileLayer * @description 添加vectorTILE图层 * @param {Object} layerInfo - 图层信息 * @param {number} index 图层的顺序 * @param {string} type 创建的图层类型，restData为创建数据服务的mvt, restMap为创建地图服务的mvt * @returns {ol.layer.VectorTile} 图层对象

(layerInfo, index, type)

   * @returns {ol.layer.VectorTile}  图层对象
   */
  async addVectorTileLayer(layerInfo, index, type) {
    let layer;
    if (type === 'RESTDATA') {
      //用的是restdata服务的mvt
      layer = await this.createDataVectorTileLayer(layerInfo);
    }
    let layerID = Util.newGuid(8);
    if (layer) {
      layerInfo.name &&
        layer.setProperties({
          name: layerInfo.name,
          layerID: layerID
        });
      layerInfo.opacity != undefined && layer.setOpacity(layerInfo.opacity);
      layer.setVisible(layerInfo.visible);
      layer.setZIndex(index);
    }
    layerInfo.layer = layer;
    layerInfo.layerID = layerID;
    return layer;
  }
  /**
   * @private
   * @function WebMap.prototype.createDataVectorTileLayer