[Bug] Sometimes the last tooltip of a series can't show when triggered by dispatchAction

[family2hu]

Version

5.4.1

Link to Minimal Reproduction

https://codesandbox.io/s/great-raman-c7x3y6

Steps to Reproduce

In specific width and height of the container, with the specific grid data, the last tooltip of a series can't show when triggered by dispatchAction. Is the boundary condition not met?
width: 463px
height: 375px
grid: {
top: '20%',
left: '5%',
bottom: '5%',
right: '10%',
containLabel: true,
}

Current Behavior

The last tooltip of a series can't show when triggered by dispatchAction.

Expected Behavior

The last tooltip of a series can show when triggered by dispatchAction just like using mouse hover.

Environment

- OS: 13.0
- Browser: chrome Version 110.0.5481.100 (Official Build) (arm64)
- Framework: raw echarts

Any additional comments?

No response

[helgasoft]

not-a-bug
You need to just wrap the dispatchAction call in a function inside setTimeout.

setTimeout( () => {
  myChart.dispatchAction({
    type: "showTip",
    seriesIndex: 0,
    dataIndex: 5
  }) 
});

[family2hu]

https://codesandbox.io/s/great-raman-c7x3y6

sorry，that was a slip of the pen that has been corrected, but the problem persists. When I change the grid option, it will show. But I think it should't be affected by it.

[helgasoft]

cannot reproduce in EChart's environment - Demo Code, works as expected.

[family2hu]

Demo Code

yes, I knew that. So I said "in specific width and height of the container, with the specific grid data"

[helgasoft]

sorry, I did not consider dimensions important, but you are right.
There is a magic width of 463px when the tooltip is not showing.
Width of 462 or 464, or any other width I tried works fine - Demo Code (refresh with Run button).
Maybe a lucky number to win the lottery 🍀

[family2hu]

Thanks for the reply. Maybe I'm just wondering how it works inside.

[helgasoft]

it's related to xAxis.boundaryGap and series.clip:false does not fix it.
No problems with xAxis.boundaryGap:true, but maybe this is not a solution for you.
There are other 'magic' widths like 518,558,563,609,624,816,876,... which show no tooltip, so definitely there is a measuring or rounding bug.
new Demo Code - just change the width with mouse-drag

[family2hu]

Yes, but why can it be displayed by hover, is there any difference between the two?

[helgasoft]

Source code is open for the brave to look at and even fix.
I prefer to analyze a find solutions on API level.
Here is an API workaround - highlight last values instead of showing tooltip.
Demo Code
Drawback is that user has to hover the last vertical line to downplay.

[github-actions]

This issue has been automatically marked as stale because it did not have recent activity. It will be closed in 7 days if no further activity occurs. If you wish not to mark it as stale, please leave a comment in this issue.

[github-actions]

This issue has been automatically closed because it did not have recent activity. If this remains to be a problem with the latest version of Apache ECharts, please open a new issue and link this to it. Thanks!