# Visibility of markups angle in 2D slice views is unlike other markups

**URL:** <https://discourse.slicer.org/t/visibility-of-markups-angle-in-2d-slice-views-is-unlike-other-markups/37091>\
**Category:** Support\
**Tags:** markups\
**Created:** [June 28, 2024, 9:48pm UTC](https://discourse.slicer.org/t/visibility-of-markups-angle-in-2d-slice-views-is-unlike-other-markups/37091 "2024-06-28T21:48:32Z")\
**Posts on this page:** 4\
**Page:** 1

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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 28, 2024, 9:48pm UTC](https://discourse.slicer.org/t/visibility-of-markups-angle-in-2d-slice-views-is-unlike-other-markups/37091/1 "2024-06-28T21:48:32Z")

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Why is that the Markups Angle lines can be seen across multiple slice offsets while other markup types such as Line is only seen in the slice offset drawn? I was confused when I was seeing the lines of the angle without the control points in a slice offset away from where I placed it.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/5/e54770d74f6f4bf9bb096ff5a2eee61c2d58b92b.jpeg)  
Then moving slice offset forward, the markup angle is still visible.  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/5/7582a3f09399e52f687e2233405209b5406a938f.jpeg)

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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:** [July 2, 2024, 12:41pm UTC](https://discourse.slicer.org/t/visibility-of-markups-angle-in-2d-slice-views-is-unlike-other-markups/37091/2 "2024-07-02T12:41:12Z")

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@Sunderlandkyl This may be a question best for your expertise related to Markups display.

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**Author:** ![Sunderlandkyl](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sunderlandkyl/32/79987_2.png) [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Post date:** [July 2, 2024, 1:35pm UTC](https://discourse.slicer.org/t/visibility-of-markups-angle-in-2d-slice-views-is-unlike-other-markups/37091/3 "2024-07-02T13:35:30Z")

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Thanks, I’ll take a look at it.

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**Author:** ![Sunderlandkyl](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sunderlandkyl/32/79987_2.png) [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Post date:** [July 2, 2024, 3:32pm UTC](https://discourse.slicer.org/t/visibility-of-markups-angle-in-2d-slice-views-is-unlike-other-markups/37091/4 "2024-07-02T15:32:30Z")

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PR that makes angles follow the same behavior as line/curve markups:

> <https://github.com/Slicer/Slicer/pull/7832>
>
> For line/curve markup types, the lines are hidden whenever they don't intersect …with the current slice, however the current behavior for angle markups is that they continue to be visible even when they no longer intersect. This commit updates the behavior of angle lines to be consistent with that of the other markup types.
> 
> See discussion: https://discourse.slicer.org/t/visibility-of-markups-angle-in-2d-slice-views-is-unlike-other-markups/37091