liquidFill+pie组合图

一、图例

二、学习记录
1、版本对应：echarts-liquidfill@2对应echarts@4；echarts-liquidfill@3对应echarts@5。
2、echarts-liquidfill的安装：npm install echarts-liquidFill@2。（echarts用的4的版本）
3、echarts-liquidfill的引用：require('echarts-liquidFill');
4、饼图中使用的圆角无效，原因暂不明：itemStyle.borderRadius。（？？？）

三、示例

import * as echarts from 'echarts';
require('echarts-liquidFill');


let ua = function _fun(k) {
    return function (a,b) {
        return  b[k] - a[k];
    }
}
let colors = ['#5470c6', '#91cc75', '#fac858', '#ee6666', '#73c0de', '#3ba272', '#fc8452', '#9a60b4', '#ea7ccc'];
let datum = [
    {value: 600, name: '搜索引擎'},
    {value: 100, name: '直接访问'},
    {value: 250, name: '邮件营销'},
    {value: 150, name: '联盟广告'},
    {value: 200, name: '视频广告'}
];
let llDatum = datum.sort(ua('value'));
llDatum.forEach((item, index)=>{
    item.value = item.value / 1000;
    item['itemStyle'] = {};
    item['itemStyle']['color'] = colors[index];
});

let option = {
    grid:{
        top: 0,
        left: 0,
        right: 0,
        bottom: 0,
        containLabel: true
    },
    tooltip: {
        trigger: 'item'
    },
    series: [
        {
            name: '访问来源',
            type: 'pie',
            radius: ['70%', '100%'],
            avoidLabelOverlap: false,
            itemStyle: {
                borderRadius: 10, //此处无效？？？
                borderColor: '#fff',
                borderWidth: 2
            },
            label: {
                show: false,
                position: 'center'
            },
            emphasis: {
                label: {
                    show: false,
                    fontSize: '40',
                    fontWeight: 'bold'
                }
            },
            labelLine: {
                show: false
            },
            data: datum.sort(ua('value'))
        },
        {
        type: 'liquidFill',
        shape: 'circle',
        radius: '70%',
        phase: 0,
        period: 'auto',
        color: ['#294D99', '#ff0000', '#1598ED', '#45BDFF'],
        label: {
            position: ['10%', '55%'],
            align: 'left',
            baseline: 'middle',
            formatter: function(params) {
                console.log('value',params);
                let str = ''
                llDatum.forEach((item, index) => {
                    str += item.name + '：' + item.value +'\n';
                })
                return str;
            },
            fontSize: 12,
            color: '#D94854'
        },
        data: llDatum  
    }]
};
let myChart = echarts.init(document.getElementById('canvasBox'));
myChart.setOption(option);
window.addEventListener("resize", myChart.resize);

四、Liquid Fill Chart API

data: [], // 数值建议从大到小排序，否则小的会被大的遮挡以致看不到某层；【类型：小数或百分比】
color: ['#294D99', '#156ACF', '#1598ED', '#45BDFF'],
center: ['50%', '50%'],
radius: '50%',
amplitude: '8%',
waveLength: '80%',
phase: 'auto',
period: 'auto',   //  {number|'auto'|function(value,index)} 定义波浪速度
direction: 'right', // 定义波浪移动方向
shape: 'circle',  //`'circle'`, `'rect'`, `'roundRect'`, `'triangle'`, `'diamond'`, `'pin'`, `'arrow'`;

waveAnimation: true,
animationEasing: 'linear',
animationEasingUpdate: 'linear',
animationDuration: 2000,
animationDurationUpdate: 1000,

outline: {
    show: true,
    borderDistance: 8,
    itemStyle: {
        color: 'none',
        borderColor: '#294D99',
        borderWidth: 8,
        shadowBlur: 20,
        shadowColor: 'rgba(0, 0, 0, 0.25)'
    }
},

backgroundStyle: {
    color: '#E3F7FF'
},

itemStyle: {
    opacity: 0.95,
    shadowBlur: 50,
    shadowColor: 'rgba(0, 0, 0, 0.4)'
},

label: {
    show: true,
    color: '#294D99',
    insideColor: '#fff',
    fontSize: 50,
    fontWeight: 'bold',

    align: 'center',
    baseline: 'middle',
    position: 'inside'
},

emphasis: {
    itemStyle: {
        opacity: 0.8
    }
}
}