05/datazoom.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>ECharts</title>
    <!-- 引入 echarts.js -->
    <script src="../echarts.min.js"></script>
</head>
<body>
    <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
<div id="main" style="width: 900px;height:600px;"></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'));

var base = +new Date(1968, 9, 3);
var oneDay = 24 * 3600 * 1000;
var date = [];

var data = [Math.random() * 300];

for (var i = 1; i < 20000; i++) {
    var now = new Date(base += oneDay);
    date.push([now.getFullYear(), now.getMonth() + 1, now.getDate()].join('-'));
    data.push(Math.round((Math.random() - 0.5) * 20 + data[i - 1]));
}

option = {
    tooltip: {
        trigger: 'axis',
        position: function (pt) {
            return [pt[0], '10%'];
        }
    },
    title: {
        left: 'center',
        text: '大数据量折线图',
    },
    legend: {
        top: 'bottom',
        data:['意向']
    },
    toolbox: {
        show: true,
        feature: {
            dataView: {show: true, readOnly: false},
            magicType: {show: true, type: ['line', 'bar', 'stack', 'tiled']},
            restore: {show: true},
            saveAsImage: {show: true}
        }
    },
    xAxis: {
        type: 'category',
        boundaryGap: false,
        data: date
    },
    yAxis: {
        type: 'value',
        boundaryGap: [0, '100%']
    },
    dataZoom: [{
        type: 'slider',
        start: 10,
        end: 40
    }],
    series: [
        {
            name:'模拟数据',
            type:'line',
            smooth:true,
            symbol: 'none',
            sampling: 'average',
            itemStyle: {
                normal: {
                    color: 'rgb(255, 70, 131)'
                }
            },
            areaStyle: {
                normal: {
                    color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
                        offset: 0,
                        color: 'rgb(255, 158, 68)'
                    }, {
                        offset: 1,
                        color: 'rgb(255, 70, 131)'
                    }])
                }
            },
            data: data
        }
    ]
};


// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
</script>
</body>
</html>