               data[dataIndex][2] = currColorIndex;

                    update();
                });

                var update = echarts.throttle(function () {
                    chart.setOption({
                        series: {
                            data: data
                        }
                    });
                }, 300);
            }

        </script>




        <script>

            var data;

            require([
                'echarts',
                'extension/bmap'
  