Message has 1 Reply:
 | | Re: 3D geometry question
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| Thanks for all the help and suggestions. However, I found an alternate way of doing this last night. The columns in M are simply the axis spanning the rotated coordinate system, right? So we can use v as the 2nd axis to get the v vector pointing (...) (25 years ago, 14-Oct-99, to lugnet.cad)
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Message is in Reply To:
| | Re: 3D geometry question
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| Fredrik Glöckner skrev i meddelandet ... (...) What about: Assume V = (Vx, Vy, Vz) B = arctan(Vx/Vz) (Better with arctan2(Vz, Vx) if available, otherwise you have to adjust to the right quadrant manually) Matrix for rotation around Y: ( cos(B) 0 (...) (25 years ago, 13-Oct-99, to lugnet.cad)
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