wcccode opened a new issue, #20520:
URL: https://github.com/apache/echarts/issues/20520
### Version
5.5.1
### Link to Minimal Reproduction
no
### Steps to Reproduce
var echarts = require('echarts');
const { createCanvas } = require('canvas');
const fs = require('fs');
echarts.setCanvasCreator(() => {
return createCanvas(800, 600);
});
const canvas = createCanvas(800, 600);
let chart = echarts.init(canvas);
const data = {
"employees": [
{ "name": "John Doe", "age": 30, "occupation": "Engineer" },
{ "name": "Jane Smith", "age": 28, "occupation": "Designer" }
]
};
var option = {
title: {
text: '10.01-10.15日活每日增长趋势'
},
tooltip: {},
legend: {
data: ['活跃数'],
bottom: '10'
},
xAxis: {
data: ['2024-10-1', '2024-10-2', '2024-10-3', '2024-10-4', '2024-10-5',
'2024-10-6', '2024-10-7', '2024-10-8', '2024-10-9', '2024-10-10', '2024-10-11',
'2024-10-12', '2024-10-13', '2024-10-14', '2024-10-15']
},
yAxis: {},
series: [{
name: '活跃数',
type: 'line',
data: [86, 38, 45, 37, 37, 37, 60, 589, 545, 653, 891, 838, 225, 708,
597],
label: {
show: true, // 显示每个数据点的标签
position: 'top', // 标签的位置，可以是 'top', 'left', 'right', 'bottom'
formatter: '{c}' // 显示数据的值
}
}]
};
chart.setOption(option);
const buffer = canvas.toBuffer('image/png');
chart.dispose();
chart = null;
fs.writeFileSync('chart.png', buffer);
### Current Behavior
折线图未显示数值
### Expected Behavior
折线图显示数值
### Environment
```markdown
- OS:
- Browser:
- Framework:
```
### Any additional comments?
测试结果：
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