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Posted to commits@echarts.apache.org by "AndreyPatseiko (via GitHub)" <gi...@apache.org> on 2023/11/16 15:09:57 UTC
[I] [Bug] Big heat map stop present data when dataZoom selected small part. [echarts]
AndreyPatseiko opened a new issue, #19306:
URL: https://github.com/apache/echarts/issues/19306
### Version
5.4.3
### Link to Minimal Reproduction
https://codesandbox.io/s/heatmap-forked-cnhhc7?file=/index.js
### Steps to Reproduce
1) Open example link for reproduce.
2) Change data Zoom (scroll mouse wheel, or do it manually) to range for a couple days.
### Current Behavior
Data in some charts disappeared.
But when you try to hover any elements, they items appears and tooltip presented.
### Expected Behavior
Heatmap data should present always (for any dataZoom value)
### Environment
```markdown
- OS: Window 10
- Browser: Chrome
- Framework: lit
```
### Any additional comments?
_No response_
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Re: [I] [Bug] Big heat map stop present data when dataZoom selected small part. [echarts]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed issue #19306: [Bug] Big heat map stop present data when dataZoom selected small part.
URL: https://github.com/apache/echarts/issues/19306
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Re: [I] [Bug] Big heat map stop present data when dataZoom selected small part. [echarts]
Posted by "helgasoft (via GitHub)" <gi...@apache.org>.
helgasoft commented on issue #19306:
URL: https://github.com/apache/echarts/issues/19306#issuecomment-1815253505
hm, hardly a <ins>**Minimal**</ins> Reproduction code - it has 160,000+ lines...
Agree, the "hidden" heatmaps are there.
Alternative designs might help. For instance changing axes types
```
yAxis: [ {type: 'value', gridIndex: 0 }, ...],
xAxis: [ {type: 'time', gridIndex: 0 }, ...]
```
This will **solve** the _dataZoom_ problem, but the X axes won't be aligned. So next step could be to preprocess time data and **synchronize** it across all ten data inputs. Then, aligned X-axes could be tied together with
```axisPointer: { link: [{ xAxisIndex: 'all' }]}```.
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Re: [I] [Bug] Big heat map stop present data when dataZoom selected small part. [echarts]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #19306:
URL: https://github.com/apache/echarts/issues/19306#issuecomment-3568335838
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!
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Re: [I] [Bug] Big heat map stop present data when dataZoom selected small part. [echarts]
Posted by "helgasoft (via GitHub)" <gi...@apache.org>.
helgasoft commented on issue #19306:
URL: https://github.com/apache/echarts/issues/19306#issuecomment-1816902241
Keep in mind that when xAxis has _data_, it makes it automatically type '**category**', regardless of the explicit type set ('time').
That's why my example did not include _data_.
I think you will like this solution:
```
...
xAxis: [
{ type: 'time', gridIndex: 0 },
{ type: 'time', gridIndex: 1 },
{ type: 'time', gridIndex: 2 },
{ type: 'time', gridIndex: 3 }
],
tooltip:{
trigger: 'axis',
formatter: (x) => {
txt= x[0].value[0].toLocaleString()+'<br>';
x.map(p => txt += p.value[1] +' '+ p.marker +' '+ p.value[2] +'<br>');
return txt;
},
axisPointer: { link: [{ xAxisIndex: 'all' }]}
},
series: [
{ type: 'scatter', symbolSize:2, large:true, ...},
{ type: 'scatter', symbolSize:2, large:true, ...}, ...
]
```
Switching series from heatmap to **scatter** makes them much more responsive.
NB: ECharts [editor](https://echarts.apache.org/examples/en/editor.html) works much faster than codesandbox.io.
Please copy the code there to see the difference.
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Re: [I] [Bug] Big heat map stop present data when dataZoom selected small part. [echarts]
Posted by "AndreyPatseiko (via GitHub)" <gi...@apache.org>.
AndreyPatseiko commented on issue #19306:
URL: https://github.com/apache/echarts/issues/19306#issuecomment-1816021141
Thanks for fast response.
I was simplified example and switched axis how you mention. But got the same result - hidden items.😔
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Re: [I] [Bug] Big heat map stop present data when dataZoom selected small part. [echarts]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #19306:
URL: https://github.com/apache/echarts/issues/19306#issuecomment-3539353058
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.
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