radusuciu commented on issue #16336:
URL: https://github.com/apache/echarts/issues/16336#issuecomment-1319283104
Same issue when the data is specified as an array:
```javascript
var datasetSrc = [
[0, 0, 'one', 1],
[1, 1, 'one', 5],
[2, 2, 'two', 7],
[3, 3, 'three', 10],
];
```
In combination with this option:
```javascript
visualMap: {
min: 0,
max: 10,
dimension: [3],
show: false
},
series: [{
type: 'heatmap',
label: {
show: true,
},
encode: {
x: 0,
y: 1,
value: 3,
}
}]
```
will always display the label from the third element of `datasetSrc` (index
2; see https://codepen.io/radusuciu/pen/wvXPKao), and I believe that
`label.formatter` is the only way to override this currently:
```javascript
label: {
show: true,
formatter: (value) => {
return value.data[3]
}
},
```
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