Method createPointsData

src/openlayers/mapping/WebMap.js:4776–4812

* @private * @function WebMap.prototype.createPointsData * @param {Array} lineData 线数据 * @param {Object} layerInfo 图层信息 * @param {Array} properties 属性 * @returns {Array} 点数据

(lineData, layerInfo, properties)

   * @returns {Array} 点数据
   */
  createPointsData(lineData, layerInfo, properties) {
    let data = [],
      labelSetting = layerInfo.labelSetting;
    // 标签隐藏则直接返回
    if (!labelSetting.show || !lineData.length) {
      return data;
    }
    let fromData = [],
      toData = [];
    lineData.forEach((item, idx) => {
      let coords = item.coords,
        fromCoord = coords[0],
        toCoord = coords[1],
        fromProperty = properties[idx][labelSetting.from],
        toProperty = properties[idx][labelSetting.to];
      // 起始字段去重
      let f = fromData.find((d) => {
        return d.value[0] === fromCoord[0] && d.value[1] === fromCoord[1];
      });
      !f &&
        fromData.push({
          name: fromProperty,
          value: fromCoord
        });
      // 终点字段去重
      let t = toData.find((d) => {
        return d.value[0] === toCoord[0] && d.value[1] === toCoord[1];
      });
      !t &&
        toData.push({
          name: toProperty,
          value: toCoord
        });
    });
    data = fromData.concat(toData);
    return data;
  }

  /**
   * @private