Method _getTiandituUrl

src/common/mapping/WebMapV2.js:2900–2953

(mapInfo)

    }

    _getTiandituUrl(mapInfo) {
      const re = /t0/gi;
      const tiandituUrls = { tiandituUrl: [], labelUrl: [] };

      const layerType = mapInfo.baseLayer.layerType.split('_')[1].toLowerCase();
      const isLabel = Boolean(mapInfo.baseLayer.labelLayerVisible);
      const token = this.tiandituKey || mapInfo.baseLayer.tk;
      let url = `https://t0.tianditu.gov.cn/{layer}_{proj}/wmts?tk=${token}`;
      let labelUrl = url;

      const layerLabelMap = {
        vec: 'cva',
        ter: 'cta',
        img: 'cia'
      };

      const tilematrixSet = this.baseProjection === 'EPSG:4326' ? 'c' : 'w';
      const options = {
        service: 'WMTS',
        request: 'GetTile',
        style: 'default',
        version: '1.0.0',
        layer: layerType,
        tilematrixSet: tilematrixSet,
        format: 'tiles',
        width: 256,
        height: 256
      };

      url = Util.urlAppend(url, this._getParamString(options, url) + '&tilematrix={z}&tilerow={y}&tilecol={x}')

      const tiandituUrl = url.replace('{layer}', layerType).replace('{proj}', tilematrixSet);
      const tiandituUrlArr = [];

      for (let i = 0; i < 8; i++) {
        tiandituUrlArr.push(tiandituUrl.replace(re, `t${i}`));
      }
      tiandituUrls.tiandituUrl = tiandituUrlArr;

      // 如果有 label 图层
      if (isLabel) {
        const labelLayer = layerLabelMap[layerType];
        options.layer = labelLayer;
        labelUrl = Util.urlAppend(labelUrl, this._getParamString(options, labelUrl) + '&tilematrix={z}&tilerow={y}&tilecol={x}');
        labelUrl = labelUrl.replace('{layer}', labelLayer).replace('{proj}', tilematrixSet);
        const labelUrlArr = [];
        for (let i = 0; i < 8; i++) {
          labelUrlArr.push(labelUrl.replace(re, `t${i}`));
        }
        tiandituUrls.labelUrl = labelUrlArr;
      }

      return tiandituUrls;
    }

    _getProjectionWKT(projection) {
      let epsgCode = toEpsgCode(projection);