Echarts在线免费图表

 
            option = {
    title: {
        text: '某站点用户访问来源',
        subtext: '纯属虚构',
        x: 'center'
    },
    tooltip: {
        trigger: 'item',
        formatter: "{a} <br/>{b} : {c} ({d}%)"
    },
    legend: {
        orient: 'vertical',
        left: 'left',
        data: ['直接访问', '邮件营销', '联盟广告', '视频广告', '搜索引擎']
    },
    series: [{
        name: '访问来源',
        type: 'pie',
        radius: '55%',
        center: ['50%', '60%'],
        data: [{
                value: 335,
                name: '直接访问'
            },
            {
                value: 310,
                name: '邮件营销'
            },
            {
                value: 234,
                name: '联盟广告'
            },
            {
                value: 135,
                name: '视频广告'
            },
            {
                value: 1548,
                name: '搜索引擎'
            }
        ],
        itemStyle: {
            emphasis: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: 'rgba(0, 0, 0, 0.5)'
            }
        }
    }]
};


var currentIndex = -1;
setInterval(function() {
    var dataLen = option.series[0].data.length;

    // 取消之前高亮的图形
    myChart.dispatchAction({
        type: 'downplay',
        seriesIndex: 0,
        dataIndex: currentIndex
    });
    currentIndex = (currentIndex + 1) % dataLen;
    // 高亮当前图形
    myChart.dispatchAction({
        type: 'highlight',
        seriesIndex: 0,
        dataIndex: currentIndex,
    });
    // 显示 tooltip
    myChart.dispatchAction({
        type: 'showTip',
        seriesIndex: 0,
        dataIndex: currentIndex
    });
}, 1000);