# No length measurement in markups

**URL:** <https://discourse.slicer.org/t/no-length-measurement-in-markups/43404>\
**Category:** Support\
**Created:** [June 18, 2025, 7:34am UTC](https://discourse.slicer.org/t/no-length-measurement-in-markups/43404 "2025-06-18T07:34:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SANTIAGO\_PENDON\_MING](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/santiago_pendon_ming/32/66060_2.png) [@SANTIAGO\_PENDON\_MING](https://discourse.slicer.org/u/SANTIAGO_PENDON_MING)\
**Post date:** [June 18, 2025, 7:34am UTC](https://discourse.slicer.org/t/no-length-measurement-in-markups/43404/1 "2025-06-18T07:34:06Z")

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Hi to everyone. Today working with the markups module I wanted to measure some segments, but when I create the markups, they do not show the length property (see picture). In curves, other properties like curvature and torsion were computed fine.

My slicer version is 5.6.2 in windows 11.

PD: I have tried to uninstall the extensions related with markups and then re-install it but nothing happens.

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [June 18, 2025, 10:41am UTC](https://discourse.slicer.org/t/no-length-measurement-in-markups/43404/2 "2025-06-18T10:41:45Z")

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I suspect this was already fixed in the following commit which was originally included with the Slicer 5.8.0 stable release:

> <https://github.com/Slicer/Slicer/commit/39ff123f94df4b2600efe21a149a6e9dbb73d333>
>
> When markup node content was copied, input node for measurements was not set cor…rectly.
> 
> fixes #7239

Please try again with the latest stable which you can get at [https://download.slicer.org/](https://download.slicer.org/).

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [June 18, 2025, 10:51am UTC](https://discourse.slicer.org/t/no-length-measurement-in-markups/43404/3 "2025-06-18T10:51:10Z")

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SlicerMorph removed its undo enabled functionality for markup line nodes to avoid this missing measurement issue (see linked commit below), but it appears they no longer what have to do so. FYI @smrolfe @muratmaga

> <https://github.com/SlicerMorph/SlicerMorph/commit/248235d5814e8cb91d709598658971d4753d35f9>
>
> Only allow undo for point lists