# Rotation handle in view plane

**URL:** <https://discourse.slicer.org/t/rotation-handle-in-view-plane/24254>\
**Category:** Development\
**Created:** [July 9, 2022, 11:58pm UTC](https://discourse.slicer.org/t/rotation-handle-in-view-plane/24254 "2022-07-09T23:58:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mau\_igna\_06](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/mau_igna_06/32/9056_2.png) [@mau\_igna\_06](https://discourse.slicer.org/u/mau_igna_06)\
**Post date:** [July 9, 2022, 11:58pm UTC](https://discourse.slicer.org/t/rotation-handle-in-view-plane/24254/1 "2022-07-09T23:58:57Z")

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Hi everyone,

Dear @Sunderlandkyl, since you have developed a lot around the topic of markups interaction handles: I would like to ask you for a roadmap of the necessary changes to add a rotation around the cameraViewPlane or slicePlane if it is not too much of a hassle.

- My objetive would be to have something like the blue ring that is seeing here [Virtual surgical planning using a DCIA free flap for mandibular reconstruction - YouTube](https://youtu.be/7RMermYOOYY?t=99)

Till now I think I can draw the corresponding glyph with the correct transform but I cannot get it to update with camera movements. Do you know how to achieve this is c++?

I have seen this example:

> <https://github.com/Kitware/VTK/blob/6a9c565da01bcd6295d0bcbb66c0a9d0d2eaa69e/Filters/Core/Testing/Cxx/TestGlyph3DFollowCamera.cxx>

But it appeared too hard to integrate