Method _createMigrationLayer

src/common/mapping/WebMapV2.js:1290–1314

(layerInfo, features)

    }

    _createMigrationLayer(layerInfo, features) {
      const { layerID, layerType } = layerInfo;
      const options = this.getEchartsLayerOptions(layerInfo, features, 'GLMap');
      options.GLMap = { roam: true };
      const echartslayer = new window.EchartsLayer(this.map);
      echartslayer.chart.setOption(options);
      echartslayer.id = layerID;
      echartslayer.features = features;
      this.echartslayer.push(echartslayer);
      this._addLayer({
        id: layerID,
        type: layerType,
        setLayoutProperty(name, value) {
          if (name === 'visibility') {
            if (value === 'visible') {
              echartslayer.chart._dom.style.display = 'block';
            } else {
              echartslayer.chart._dom.style.display = 'none';
            }
          }
        },
        metadata: { SM_Layer_Order: 'top' }
      });
      this._addLayerSucceeded({ layerInfo, features });
    }

    _createRankSymbolLayer(layerInfo, features) {
      const { minzoom, maxzoom } = layerInfo;