Patrick-Jun opened a new issue #13006:
URL: https://github.com/apache/incubator-echarts/issues/13006
### Version
4.8.0
### Steps to reproduce
step 1：label使用`\n`换行：formatter: '{b}\n{c}'
step 2：给label文字定义行高：lineHeigt: 18
以下是完整配置：
``` javascript
let data = [
{name: '中央环保督察', value: 100},
{name: '大气污染防治', value: 300},
{name: '水污染防治', value: 1},
{name: '土壤污染防治', value: 1},
{name: '自然生态保护', value: 100},
{name: '其他', value: 54},
]
option = {
grid: {
top: 16,
left: 0,
right: 0,
bottom: 0,
containLabel: true
},
color: ['#36C977', '#FFCC37', '#F65546', '#00A2FF', '#4B79FF',
'#A56FFF'],
// backgroundColor: '#fff',
series: [
{
name: '数据',
type: 'pie',
radius: [39.2, 52],
clockwise: false, // 逆时针
hoverAnimation: false,
avoidLabelOverlap: true,
minAngle: 5,
data: data,
label: {
fontSize: 12,
color: '#333333',
position: 'outer',
alignTo: 'edge',
margin: 0,
lineHeight: 18, // 设置了行高后，换行的标签可能会出现重叠
formatter: '{b}\n{c}（个）',
},
labelLine: {
lineStyle: {
width: 1,
opacity: 0.5,
color: '#B2B2B2'
}
},
itemStyle: {
borderColor: '#fff',
borderWidth: 1
}
}
]
};
```
### What is expected?
label不重叠
### What is actually happening?
相邻数据较小时，label会重叠
---
开启`avoidLabelOverlapin`，也是会重叠的。查了许多，也看过 issue ，这个重叠问题目前还是无法解决。
[相似issue：](https://github.com/apache/incubator-echarts/issues/11828)
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