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Posted to commits@echarts.apache.org by GitBox <gi...@apache.org> on 2021/04/28 17:25:33 UTC
[GitHub] [echarts] dthunn opened a new issue #14835: Lines and mark areas disappear during zooming
dthunn opened a new issue #14835:
URL: https://github.com/apache/echarts/issues/14835
### Version
5.1.1
### Steps to reproduce
While zooming on line graphs the lines break apart, this is same issue as https://github.com/apache/echarts/issues/3637. I have decided to submit this issue because that one is closed but the issue definitely still exists.
### What is expected?
Lines stay connected after zooming.
### What is actually happening?
Lines become disconnected while zooming
---
This issue has being going on for years it looks like, any help or a fix would be great.
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[GitHub] [echarts] echarts-bot[bot] commented on issue #14835: Lines and mark areas disappear during zooming
Posted by GitBox <gi...@apache.org>.
echarts-bot[bot] commented on issue #14835:
URL: https://github.com/apache/echarts/issues/14835#issuecomment-828637545
Hi! We've received your issue and please be patient to get responded. 🎉
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[GitHub] [echarts] dthunn commented on issue #14835: Lines and mark areas disappear during zooming
Posted by GitBox <gi...@apache.org>.
dthunn commented on issue #14835:
URL: https://github.com/apache/echarts/issues/14835#issuecomment-828709928
I have found the issue that causes it on my end, having yAxis type set to 'log' causes the bug, if I remove it, everything is fine. I would definitely like to keep the log scale on the y-axis is anyone has any ideas.
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[GitHub] [echarts] locinus edited a comment on issue #14835: Lines and mark areas disappear during zooming
Posted by GitBox <gi...@apache.org>.
locinus edited a comment on issue #14835:
URL: https://github.com/apache/echarts/issues/14835#issuecomment-903303711
I indeed believe this issue still exists: markLines defined by two points disappear when zooming in, as at least one of the points is out of the zoomed window, and even with the filterMode: 'none' option.
A possible workaround could be to hook on the 'datazoom' event and save the zoom state:
const zoomState = {};
```
echartsInstance.on('datazoom', (event) => {
const option = echartsInstance.getOption();
if(option.dataZoom && Array.isArray(option.dataZoom) && option.dataZoom.length > 0) {
zoomState.startValue = option.dataZoom[0].startValue;
zoomState.endValue = option.dataZoom[0].endValue;
}
});
```
and then proceed to recalculate the chart's options, using the zoomState.startValue and zoomState.endValue as the boundaries of the markLines (I would add +1 to the startValue and -1 to the endValue to make sure we're within the zoomed window). Not ideal, but does the job.
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[GitHub] [echarts] locinus commented on issue #14835: Lines and mark areas disappear during zooming
Posted by GitBox <gi...@apache.org>.
locinus commented on issue #14835:
URL: https://github.com/apache/echarts/issues/14835#issuecomment-903303711
I indeed believe this issue still exists: markLines defined by two points disappear when zooming in, as at least one of the points is out of the zoomed window, and even with the filterMode: 'none' option.
A possible workaround could be to hook on the 'datazoom' event and save the zoom state:
const zoomState = {};
echartsInstance.on('datazoom', (event) => {
const option = echartsInstance.getOption();
if(option.dataZoom && Array.isArray(option.dataZoom) && option.dataZoom.length > 0) {
zoomState.startValue = option.dataZoom[0].startValue;
zoomState.endValue = option.dataZoom[0].endValue;
}
});
and then proceed to recalculate the chart's options, using the zoomState.startValue and zoomState.endValue as the boundaries of the markLines (I would add +1 to the startValue and -1 to the endValue to make sure we're within the zoomed window). Not ideal, but does the job.
--
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[GitHub] [echarts] locinus edited a comment on issue #14835: Lines and mark areas disappear during zooming
Posted by GitBox <gi...@apache.org>.
locinus edited a comment on issue #14835:
URL: https://github.com/apache/echarts/issues/14835#issuecomment-903303711
I indeed believe this issue still exists: markLines defined by two points disappear when zooming in, as at least one of the points is out of the zoomed window, and even with the filterMode: 'none' option.
A possible workaround could be to hook on the 'datazoom' event and save the zoom state:
```
const zoomState = {};
echartsInstance.on('datazoom', (event) => {
const option = echartsInstance.getOption();
if(option.dataZoom && Array.isArray(option.dataZoom) && option.dataZoom.length > 0) {
zoomState.startValue = option.dataZoom[0].startValue;
zoomState.endValue = option.dataZoom[0].endValue;
}
});
```
and then proceed to recalculate the chart's options, using the zoomState.startValue and zoomState.endValue as the boundaries of the markLines (I would add +1 to the startValue and -1 to the endValue to make sure we're within the zoomed window). Not ideal, but does the job.
--
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