Well, the vrotate() function may do what you want. It takes a point and 
rotation vector, and returns the result of rotating that point.
The vtransform() function in MegaPOV may also be helpful to you, it 
takes actual transformations instead of just a rotation vector, but you 
have to use a non-standard version of POV.

About a separate program that does this: I'm not sure how useful that 
would be. The scale, rotate, and matrix transformations can change 
orientation and shape as well as position, and I don't think raw numbers 
representing a point will be very useful in visualizing transformations.
And calculating a position with an external program and entering it into 
the scene file won't be as precise as entering the transformations 
themselves, and the result won't be anywhere near as readable. (How is 
someone reading the source supposed to know that a sphere at 
xx.xxxxxxxxxxxxx is the result of a simple translation and rotation?)

If you just want the math, you can find it on one of the matrix tutorial 
pages, like http://enphilistor.users4.50megs.com/matrix.htm, or look in 
the POV-Ray source code(matrices.c, Compute_Rotation_Transform()).

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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