饼图轮播图

描述:当前是关于Echarts图表中的 饼图 示例。
 
            option = {
        tooltip: {
        trigger: 'item',
        formatter: "{a}<br>{b}: {c} ({d}%)",
    },
    series: [{
        name: '缴费分析',
        type: 'pie',
        radius: ['50%', '75%'],
        avoidLabelOverlap: false,
        label: {
            normal: {
                show: false,
                position: 'center'
            },
            emphasis: {
                show: true,
                textStyle: {
                    fontSize: '15',
                    fontWeight: 'bold'
                }
            }
        },
        labelLine: {
            normal: {
                show: false
            }
        },
        data: [{
            value: 30,
            name: '微信'
        }, {
            value: 25,
            name: '支付宝'
        }, {
            value: 22,
            name: '现金'
        }, {
            value: 17,
            name: '银联'
        }, {
            value: 7,
            name: '其他'
        }],
        itemStyle: {
            emphasis: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: 'rgba(0, 0, 0, 0.5)'
            }
        }
    }]
};

var count = 0;
var timeTicket = null;
var dataLength = option.series[0].data.length;
timeTicket && clearInterval(timeTicket);
timeTicket = setInterval(function() {
    myChart.dispatchAction({
        type: 'downplay',
        seriesIndex: 0,
    });
    myChart.dispatchAction({
        type: 'highlight',
        seriesIndex: 0,
        dataIndex: (count) % dataLength
    });
    myChart.dispatchAction({
        type: 'showTip',
        seriesIndex: 0,
        dataIndex: (count) % dataLength
    });
    count++;
}, 1000);

myChart.on('mouseover', function(params) {
    console.log(params)
    clearInterval(timeTicket);
     myChart.dispatchAction({
        type: 'downplay',
        seriesIndex: 0
    });
    myChart.dispatchAction({
        type: 'highlight',
        seriesIndex: 0,
        dataIndex: params.dataIndex
    });    
    myChart.dispatchAction({
        type: 'showTip',
        seriesIndex: 0,
        dataIndex: params.dataIndex,
    });
});
myChart.on('mouseout', function(params) {
    timeTicket && clearInterval(timeTicket);
    timeTicket = setInterval(function() {
         myChart.dispatchAction({
        type: 'downplay',
        seriesIndex: 0,
    });
    myChart.dispatchAction({
        type: 'highlight',
        seriesIndex: 0,
        dataIndex: (count) % dataLength
    });
    myChart.dispatchAction({
        type: 'showTip',
        seriesIndex: 0,
        dataIndex: (count) % dataLength
    });
    count++;
    }, 1000);
});