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ECharts 实例</title>
    
    <script src="https://cdn.staticfile.net/echarts/4.3.0/echarts.min.js"></script>

<div id="main" style="width: 600px;height:400px;"></div>
    <script type="text/javascript">
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));
 
        // 指定图表的配置项和数据
        var data1 = [];
        var data2 = [];
        var data3 = [];

var random = function (max) {
            return (Math.random() * max).toFixed(3);
        };

for (var i = 0; i < 500; i++) {
            data1.push([random(15), random(10), random(1)]);
            data2.push([random(10), random(10), random(1)]);
            data3.push([random(15), random(10), random(1)]);
        }

option = {
            animation: false,
            legend: {
                data: ['scatter', 'scatter2', 'scatter3']
            },
            tooltip: {
            },
            xAxis: {
                type: 'value',
                min: 'dataMin',
                max: 'dataMax',
                splitLine: {
                    show: true
                }
            },
            yAxis: {
                type: 'value',
                min: 'dataMin',
                max: 'dataMax',
                splitLine: {
                    show: true
                }
            },
            dataZoom: [
                {
                    type: 'slider',
                    show: true,
                    xAxisIndex: [0],
                    start: 1,
                    end: 35
                },
                {
                    type: 'slider',
                    show: true,
                    yAxisIndex: [0],
                    left: '93%',
                    start: 29,
                    end: 36
                },
                {
                    type: 'inside',
                    xAxisIndex: [0],
                    start: 1,
                    end: 35
                },
                {
                    type: 'inside',
                    yAxisIndex: [0],
                    start: 29,
                    end: 36
                }
            ],
            series: [
                {
                    name: 'scatter',
                    type: 'scatter',
                    itemStyle: {
                        normal: {
                            opacity: 0.8
                        }
                    },
                    symbolSize: function (val) {
                        return val[2] * 40;
                    },
                    data: data1
                },
                {
                    name: 'scatter2',
                    type: 'scatter',
                    itemStyle: {
                        normal: {
                            opacity: 0.8
                        }
                    },
                    symbolSize: function (val) {
                        return val[2] * 40;
                    },
                    data: data2
                },
                {
                    name: 'scatter3',
                    type: 'scatter',
                    itemStyle: {
                        normal: {
                            opacity: 0.8,
                        }
                    },
                    symbolSize: function (val) {
                        return val[2] * 40;
                    },
                    data: data3
                }
            ]
        }
 
        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(option);
    </script>