# How to hide Angle lines in other slices

**URL:** <https://discourse.slicer.org/t/how-to-hide-angle-lines-in-other-slices/32099>\
**Category:** Community\
**Tags:** python\
**Created:** [October 8, 2023, 5:01am UTC](https://discourse.slicer.org/t/how-to-hide-angle-lines-in-other-slices/32099 "2023-10-08T05:01:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![slicer365](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/slicer365/32/67549_2.png) [@slicer365](https://discourse.slicer.org/u/slicer365)\
**Post date:** [October 8, 2023, 5:01am UTC](https://discourse.slicer.org/t/how-to-hide-angle-lines-in-other-slices/32099/1 "2023-10-08T05:01:08Z")

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I placed lines, curves, and angle lines on the same level at the same time,  
but when I moved the plane, both lines and curves disappeared immediately.  
Why didn’t the angle lines disappear?  
I want the angle line to be shown only at the placement level, and how to make it disappear at other levels as well.

[https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/a/2af6c6458106f4c1489c912fff06f8df6bcff953.mp4](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/a/2af6c6458106f4c1489c912fff06f8df6bcff953.mp4)

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [October 8, 2023, 3:41pm UTC](https://discourse.slicer.org/t/how-to-hide-angle-lines-in-other-slices/32099/2 "2023-10-08T15:41:23Z")

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Thanks for reporting this. I can reproduce this too. It seems to be an issue with the projection visibility feature. Maybe @Sunderlandkyl could have a look?