Echarts在线免费图表

 
            option = {
    title: {
                text: '大规模散点图'
            },
            tooltip : {
                trigger: 'axis',
                showDelay : 0,
                axisPointer:{
                    show: true,
                    type : 'cross',
                    lineStyle: {
                        type : 'dashed',
                        width : 1
                    }
                },
                zlevel: 1
            },
            legend: {
                data:['sin','cos']
            },
            toolbox: {
                show : true,
                feature : {
                    mark : {show: true},
                    dataZoom : {show: true},
                    dataView : {show: true, readOnly: false},
                    restore : {show: true},
                    saveAsImage : {show: true}
                }
            },
            xAxis : [
                {
                    type : 'value',
                    scale:true
                }
            ],
            yAxis : [
                {
                    type : 'value',
                    scale:true
                }
            ],
            series : [
                {
                    name:'sin',
                    type:'scatter',
                    large: true,
                    symbolSize: 3,
                    data: (function () {
                        var d = [];
                        var len = 10000;
                        var x = 0;
                        console.log('开始生成数据');
                        while (len--) {
                            x = (Math.random() * 10).toFixed(3) - 0;
                            d.push([
                                x,
                                //Math.random() * 10
                                (Math.sin(x) - x * (len % 2 ? 0.1 : -0.1) * Math.random()).toFixed(3) - 0
                            ]);
                        }
                        console.log('完成生成数据');
                        //console.log(d)
                        return d;
                    })()
                },
                {
                    name:'cos',
                    type:'scatter',
                    large: true,
                    symbolSize: 2,
                    data: (function () {
                        var d = [];
                        var len = 20000;
                        var x = 0;
                        while (len--) {
                            x = (Math.random() * 10).toFixed(3) - 0;
                            d.push([
                                x,
                                //Math.random() * 10
                                (Math.cos(x) - x * (len % 2 ? 0.1 : -0.1) * Math.random()).toFixed(3) - 0
                            ]);
                        }
                        //console.log(d)
                        return d;
                    })()
                }]
};