          ], function (echarts) {

                var lngExtent = [39.5, 40.6];
                var latExtent = [115.9, 116.8];
                var cellCount = [50, 50];
                var cellSizeCoord = [
                    (lngExtent[1] - lngExtent[0]) / cellCount[0],
                    (latExtent[1] - latExtent[0]) / cellCount[1]
                ];
                var gapSize = 0;
                data = [[0,0,5],[1,0,5],[2,0,5],[3,0,5],[4,0,5],[5,0,5],[6,0,5],[7,0,5],[8,0,5],[9,0,5],[10,0,5],[11,0,5