dosubot[bot] commented on issue #29854:
URL: https://github.com/apache/superset/issues/29854#issuecomment-2268575271
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To address the issue where the line chart in Superset version 4.0.2 fails to
render lines between points when the values cross the X-axis, you can follow
these steps:
1. **Ensure Data Formatting**: Make sure your data points are correctly
formatted and sorted. There should be no gaps or missing values that could
cause rendering issues.
2. **Chart Configuration**:
- Set the `lineInterpolation` property to `'linear'` to ensure lines are
drawn correctly between points:
```js
const lineInterpolation = 'linear';
```
- Set the `clipEdge` property to `false` to avoid clipping the lines at
the edges:
```js
chart.clipEdge(false);
```
3. **Handling Missing Values**: Superset includes null values in the
`trendLineData` array to cover the time range. Ensure your dataset handles
missing values appropriately.
4. **Negative Values**: Superset can handle and render negative values in
line charts. Ensure your dataset includes negative values correctly if
applicable.
Here is an example of how the data should be structured:
```ts
export default [
{
key: ['Christopher'],
values: [
{ x: -157766400000.0, y: 24703 },
{ x: -126230400000.0, y: 27861 },
{ x: -94694400000.0, y: 29436 },
{ x: -63158400000.0, y: 31463 },
{ x: -31536000000.0, y: 35718 },
{ x: 0.0, y: 41758 },
{ x: 31536000000.0, y: 48172 },
{ x: 63072000000.0, y: 52092 },
{ x: 94694400000.0, y: 48217 },
{ x: 126230400000.0, y: 48476 },
{ x: 157766400000.0, y: 46438 },
{ x: 189302400000.0, y: 45086 },
{ x: 220924800000.0, y: 46610 },
{ x: 252460800000.0, y: 47107 },
{ x: 283996800000.0, y: 50514 },
{ x: 315532800000.0, y: 48969 },
{ x: 347155200000.0, y: 50108 },
{ x: 378691200000.0, y: 59055 },
{ x: 410227200000.0, y: 59188 },
{ x: 441763200000.0, y: 59859 },
{ x: 473385600000.0, y: 59516 },
{ x: 504921600000.0, y: 56633 },
{ x: 536457600000.0, y: 54466 },
{ x: 567993600000.0, y: 52996 },
{ x: 599616000000.0, y: 53205 },
{ x: 631152000000.0, y: 52322 },
{ x: 662688000000.0, y: 47109 },
{ x: 694224000000.0, y: 42470 },
{ x: 725846400000.0, y: 38257 },
{ x: 757382400000.0, y: 34823 },
{ x: 788918400000.0, y: 32728 },
{ x: 820454400000.0, y: 30988 },
{ x: 852076800000.0, y: 29179 },
{ x: 883612800000.0, y: 27083 },
{ x: 915148800000.0, y: 25700 },
{ x: 946684800000.0, y: 24959 },
{ x: 978307200000.0, y: 23180 },
{ x: 1009843200000.0, y: 21731 },
{ x: 1041379200000.0, y: 20793 },
{ x: 1072915200000.0, y: 19739 },
{ x: 1104537600000.0, y: 19190 },
{ x: 1136073600000.0, y: 19674 },
{ x: 1167609600000.0, y: 19986 },
{ x: 1199145600000.0, y: 17771 },
],
},
// Additional data series...
];
```
If the issue persists, consider checking for any updates or patches for
Superset that might address this rendering issue
<sup>[[1]](https://github.com/apache/superset/blob/master/superset-frontend/packages/superset-ui-demo/storybook/stories/plugins/legacy-preset-chart-nvd3/Line/data.ts)</sup><sup>[[2]](https://github.com/apache/superset/blob/master/superset-frontend/plugins/legacy-preset-chart-nvd3/src/NVD3Vis.js)</sup>.
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