修复绘制轨迹线时，上一组数据没有清除的问题

riku

2025-03-27 90671325090a58b0dfc91dac6a84b1c2a09eaac7

 src/api/gridApi.js

@@ -148,5 +148,20 @@
    return $http.get(`air/satellite/import/grid/aod/download/template`, {
      responseType: 'blob'
    });
  },

  buildUnderwayHeatmap(groupId, gridDataDetailList, searchLength) {
    return $http
      .post(
        `air/satellite/product/underway/heatmap/build`,
        gridDataDetailList,
        {
          params: {
            groupId: groupId,
            searchLength: 4
          }
        }
      )
      .then((res) => res.data);
  }
};