Implementation of Pie Special Label (Pie Chart)
Look at the effect first
File Directory
Get Echarts
Introduce Echarts
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<!-- 引入 ECharts 文件 -->
<script src="../incubator-echarts-5.0.0-alpha.2/dist/echarts.min.js"></script>
</head>
</html>
Draw a chart
Before drawing, we need to prepare a DOM container with height and width for ECharts
<body style="background: black;">
<!-- 为 ECharts 准备一个具备大小（宽高）的 DOM -->
<div id="main" style="width: 1710px; height: 670px"></div>
</body>
Then you can initialize an echarts instance through the echarts.init method and generate a Pie Special Label (pie chart) through the setOption method
<script type="text/javascript">
// 基于准备好的dom, 初始化echarts实例
var myChart = echarts.init(document.getElementById('main'));
// 使用刚指定的配置项和数据显示图表
myChart.setOption(option)
</script>
The complete code is as follows
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>租房数据</title>
<script src="../incubator-echarts-5.0.0-alpha.2/dist/echarts.min.js"></script>
</head>
<body style="background: black;">
<!-- 为 ECharts 准备一个具备大小（宽高）的 DOM -->
<div id="main" style="width: 1710px; height: 670px"></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'));
// 数据源
const dataList = [
{
name: '附近租房', value: 67},
{
name: '当地租房', value: 33}
]
// 自定义富文本样式
var rich = {
otherCenter: {
borderColor: '#6482ff',
width: 0,
height: 40,
align: 'center',
borderWidth: 1
},
otherCenter1: {
borderColor: '#6482ff',
width: '100%',
height: 0,
borderWidth: 1
},
otherCenterNumColor: {
color: '#6482ff',
fontSize: '28',
align: 'left',
lineHeight: 45
},
otherCenterTextColor: {
color: '#c2cbf2',
fontSize: '24',
align: 'left'
},
center: {
borderColor: '#25eaff',
width: 0,
align: 'center',
borderWidth: 1,
height: 40
},
center1: {
borderColor: '#25eaff',
width:'100%',
borderWidth: 1,
height: 0
},
centerNumColor: {
color: '#25eaff',
fontSize: '24',
align: 'left',
lineHeight: 45
},
centerTextColor: {
color: '#c2cbf2',
fontSize: '24',
align: 'left'
}
}
var option = {
title: {
text: '租房数据',
show: true,
textStyle: {
color: '#fff',
fontSize: '36',
fontFamily: 'Microsoft YaHei',
fontWeight: 400
},
top: '42',
left: '40'
},
tooltip: {
trigger: 'item',
formatter: '{a} <br/>{b} : {c} ({d}%)'
},
series: [
{
type: 'pie',
data: dataList.map((item, index) => {
return {
...(item || {
}),
label: {
normal: {
show: true,
rich: rich,
padding: [0, -53],
height: 221,
formatter: (params) => {
if(index === 0) {
return (
`{otherCenterTextColor|附近租房}` +
'\n' +
`{otherCenterNumColor|${
Math.round(params.value)}%}` +
'\n{otherCenter1|}\n{otherCenter|}\n'
)
}
return (
`{centerTextColor|当地租房}` +
'\n' +
`{centerNumColor|${
Math.round(params.value)}%}` +
'\n{center1|}\n{center|}\n'
)
}
}
}
}
}),
labelLine: {
normal: {
show: true,
length: 100,
length2: 100
}
}
},
{
type: 'pie',
radius: [0, '60%'],
data: dataList.map((item, index) => {
if(index === 1) {
return {
...(item || {
}),
itemStyle: {
color: 'rgba(0,0,0,0)'
}
}
}
return item;
})
}
]
}
// 使用刚指定的配置项和数据显示图表
myChart.setOption(option)
</script>
</body>
</html>