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I have two trirectangular tetrahedrons like on the following screenshot. My goal is to find the roll pitch yaw rotation components between the two.

enter image description here

One of them has its 3 orthogonal edges along X, Y and Z as you see on the picture. The second one has it's top vertex on the origin like the first one, but it has been rotated around all 3 axis.

An idea I tried is using the snap tool, to rotate the object and to snap it to the other one, but I couldn't find how to do that.

-- EDIT -- How can I rotate the first one so that it gets exactly superimposed with the second one ? After that I'll be able to directly read the 3 rotation values in the right menu, which I'm interested in.

As an approximation of the result I want, I can rotate it manually and get approximative values by eye (see screenshot below with values in the red circle), but is there a way to get exact values ?

enter image description here

Thanks !

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  • $\begingroup$ Sounds like a test more than a question... Just delete the second shape. Then select the first one and duplicate it. BOOM... done. $\endgroup$
    – Dontwalk
    Commented Jun 16, 2018 at 15:59
  • $\begingroup$ @Dontwalk But that won't give me the rotation values around XYZ ? I want to find those 3 values so that when applied on the first object, it rotates it exactly as the second one. Do you see what I mean ? $\endgroup$
    – Cyril_J
    Commented Jun 16, 2018 at 17:27

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