Method changeExcel2Geojson

src/openlayers/mapping/WebMap.js:2742–2776

* @private * @function WebMap.prototype.changeExcel2Geojson * @description 将excel和csv数据转换成标准geojson数据 * @param {Array} features - feature对象 * @param {Array} datas - 数据内容 * @param {string} divisionType - 行政区划类型 * @param {string} divisionField - 行政区划字段 * @returns {Object} geojson对

(features, datas, divisionType, divisionField)

   * @returns {Object} geojson对象
   */
  changeExcel2Geojson(features, datas, divisionType, divisionField) {
    let geojson = {
      type: 'FeatureCollection',
      features: []
    };
    if (datas.length < 2) {
      return geojson; //只有一行数据时为标题
    }
    let titles = datas[0],
      rows = datas.slice(1),
      fieldIndex = titles.findIndex((title) => title === divisionField);
    rows.forEach((row) => {
      let feature;
      if (divisionType === 'GB-T_2260') {
        feature = features.find((item) => item.properties.GB === row[fieldIndex]);
      } else {
        feature = Util.getHighestMatchAdministration(features, row[fieldIndex]);
      }
      //todo 需提示忽略无效数据
      if (feature) {
        let newFeature = (window.cloneDeep || cloneDeep)(feature);
        newFeature.properties = {};
        const titleLen = titles.length;
        row.forEach((item, idx) => {
          //空格问题，看见DV多处处理空格问题，TODO统一整理
          if (idx < titleLen) {
            let key = titles[idx].trim();
            newFeature.properties[key] = item;
          }
        });
        geojson.features.push(newFeature);
      }
    });
    return geojson;
  }

  /**
   * @private