# Volumes widget is too wide when there are many decimals
**URL:** https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434
**Category:** Feature requests
**Created:** [November 10, 2017, 7:10pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434 "2017-11-10T19:10:13Z")
**Posts on this page:** 18
**Page:** 1
### Author:  [@Fernando](https://discourse.slicer.org/u/Fernando)
#### Post date: [November 10, 2017, 7:10pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/1 "2017-11-10T19:10:13Z")
Title and screenshot image say it all. The module widget takes more than 50% of my screen and I can’t resize it.
It says 4 decimals here:
[https://github.com/Slicer/Slicer/blob/eefeac9286f48552e8418a11f412b2823a09b407/Libs/MRML/Widgets/Resources/UI/qMRMLVolumeInfoWidget.ui#L95-L98](https://github.com/Slicer/Slicer/blob/eefeac9286f48552e8418a11f412b2823a09b407/Libs/MRML/Widgets/Resources/UI/qMRMLVolumeInfoWidget.ui#L95-L98)
When I try to access the widget, I get 3:
```python
v = slicer.modules.volumes.widgetRepresentation()
>>> for cw in v.findChildren('qMRMLCoordinatesWidget'):
... print(cw.decimals)
...
0
3
3
```
But in Slicer there are many more.
P.S.: I’m not sure if it’s the right category or if I should’ve posted directly in the issue tracker.
---
### Author:  [@Fernando](https://discourse.slicer.org/u/Fernando)
#### Post date: [November 16, 2017, 12:02am UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/2 "2017-11-16T00:02:16Z")
Should I report this somewhere else? I can try to help with some guidance.
---
### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [November 16, 2017, 2:18am UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/3 "2017-11-16T02:18:56Z")
I cannot reproduce this. Can you give detailed instructions?
Does it help if you reduce the number of shown digits using `Ctrl`+`-` shortcut? Is it possible that you’ve accidentally hit `Ctrl`+`+` several times and that increased the number of shown digits?
---
### Author:  [@Fernando](https://discourse.slicer.org/u/Fernando)
#### Post date: [November 16, 2017, 8:58am UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/4 "2017-11-16T08:58:09Z")
> [@lassoan](#):
>
> Can you give detailed instructions?
1. Open Slicer
2. Open [this volume](https://we.tl/5vKhQXgIbi)
3. Go to `Volumes` module
4. Click on `Volume Information`
> [@lassoan](#):
>
> Does it help if you reduce the number of shown digits using Ctrl± shortcut?
Nothing happens when I click `Ctrl + -` or `Cmd + -` (I’m on a MacBook Pro Retina 13").
> [@lassoan](#):
>
> Is it possible that you’ve accidentally hit Ctrl++ several times and that increased the number of shown digits?
No, and this is something that has happened to me as long as I can remember. Just hadn’t reported it yet.
> [@lassoan](#):
>
> I cannot reproduce this.
Maybe a macOS user can reproduce. @fedorov?
---
### Author:  [@fedorov](https://discourse.slicer.org/u/fedorov)
#### Post date: [November 16, 2017, 4:37pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/5 "2017-11-16T16:37:59Z")
@Fernando I cannot reproduce it either
---
### Author:  [@fedorov](https://discourse.slicer.org/u/fedorov)
#### Post date: [November 16, 2017, 4:40pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/6 "2017-11-16T16:40:03Z")
I can also confirm that if I put the cursor into a field from Image Origin, I can then use `Command + +` / `Command + -` to increase/decrease the number of decimals.
---
### Author:  [@Fernando](https://discourse.slicer.org/u/Fernando)
#### Post date: [November 16, 2017, 4:55pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/7 "2017-11-16T16:55:50Z")
> [@fedorov](#):
>
> @Fernando I cannot reproduce it either
That’s probably because MRHead has fewer decimals in its header than the image I shared.
> [@fedorov](#):
>
> if I put the cursor into a field from Image Origin
I didn’t know I was supposed to enable one of the widget’s spin boxes. I can decrease the number of decimals of one spin box now, but as soon as I do the same on another one, the former goes back to its initial length so the module widget’s width stays the same.
---
### Author:  [@fedorov](https://discourse.slicer.org/u/fedorov)
#### Post date: [November 16, 2017, 5:11pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/8 "2017-11-16T17:11:51Z")
> [@Fernando](#):
>
> That’s probably because MRHead has fewer decimals in its header than the image I shared.
No, I checked that:
---
### Author:  [@fedorov](https://discourse.slicer.org/u/fedorov)
#### Post date: [November 16, 2017, 5:12pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/9 "2017-11-16T17:12:46Z")
I don’t know if this detail matters, but for this experiment I was using a nightly build from August.
---
### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [November 16, 2017, 6:22pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/10 "2017-11-16T18:22:05Z")
@Fernando Have you adjusted units in your application (Edit/Application Settings/Units)? It may effect how length values are displayed.
---
### Author:  [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [November 16, 2017, 9:33pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/11 "2017-11-16T21:33:22Z")
I was able to replicate the behavior reported by @Fernando using the volume he provided.
As a workaround I can change the behavior by changing the decimalsOption like this:
```auto
>>> for w in findChildren(className='qMRMLCoordinatesWidget'):
... w.decimalsOption = 0
```
I didn’t look deeper but there are a number of options and maybe we should pick a different default (or debug the version we are using which is 7 = DecimalsByShortcuts | DecimalsByKey | DecimalsByValue) for the ImageOrigin.
>
---
### Author:  [@fedorov](https://discourse.slicer.org/u/fedorov)
#### Post date: [November 16, 2017, 10:47pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/12 "2017-11-16T22:47:16Z")
> [@pieper](#):
>
> using the volume he provided
Sorry, I missed that link! Interesting that the issue is specific to the dataset.
---
### Author:  [@Fernando](https://discourse.slicer.org/u/Fernando)
#### Post date: [November 17, 2017, 10:14am UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/13 "2017-11-17T10:14:25Z")
> [@lassoan](#):
>
> Have you adjusted units in your application (Edit/Application Settings/Units)? It may effect how length values are displayed.
This didn’t have any effect.
> [@pieper](#):
>
> As a workaround I can change the behavior by changing the decimalsOption like this:
>
> \>\>\> for w in findChildren(className=‘qMRMLCoordinatesWidget’):
> … w.decimalsOption = 0
This made the `Image Spacing` widget use 4 decimals and 1 out of 3 spin boxes from `Image Origin` use 3.
---
### Author:  [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [November 17, 2017, 3:47pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/14 "2017-11-17T15:47:32Z")
The snippet I pasted will change the modes for all the coordinate widgets. If there’s a good combination of ‘decimals’ and ‘decimalsOption’ that works well we could make that the new default. I didn’t try all the enum combinations for decimalsOptions.
---
### Author:  [@Fernando](https://discourse.slicer.org/u/Fernando)
#### Post date: [April 8, 2018, 10:37pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/15 "2018-04-08T22:37:50Z")
Hi Steve,
I just tried again your snippet and it helped me reduce the size of the widget, but it still takes a lot of space (around 45% of the screen) and it feels like it should need much less, maybe 30%. Shall I work on a PR to change the defaults of the module?
---
### Author:  [@Fernando](https://discourse.slicer.org/u/Fernando)
#### Post date: [April 8, 2018, 10:41pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/16 "2018-04-08T22:41:01Z")
By the way, when I collapse the `Volume Information` button, I can reduce a the size of the widget to a reasonable width.
---
### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [April 8, 2018, 11:19pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/17 "2018-04-08T23:19:24Z")
It could be also possible to change the coordinate widget to use flow layout ([http://www.commontk.org/docs/html/classctkFlowLayout.html](http://www.commontk.org/docs/html/classctkFlowLayout.html)), which automatically places widgets into several rows if horizontal space is limited.
---
### Author:  [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [April 9, 2018, 12:06pm UTC](https://discourse.slicer.org/t/volumes-widget-is-too-wide-when-there-are-many-decimals/1434/18 "2018-04-09T12:06:05Z")
> [@Fernando](#):
>
> Shall I work on a PR to change the defaults of the module?
Yes, if you find a new set of defaults or other change (like layout as @lassoan suggested) it would be great to have a PR to test.