Rotate a part with worldspace

Help and Feedback Scripting Support
#1

I want to recreate the roblox studio rotation handle, and I want to be able to rotate parts using worldspace:

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image651×525 107 KB

This is my current handle:

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image704×482 67.8 KB

I have absolutely NO CLUE on how to do that. I successfully did it with the position, but I cannot find out how to do that with angles.

NB: there are 3 ArcHandles for each axis, and those 3 archandles are adornee’ed on a little part

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image1221×697 50.2 KB

Thanks for the help