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Subject: Mapping a vector onto a surface
Date: Sat, 21 Nov 2009 20:51:01 +0000 (UTC)
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Ok, this may be more of a maths question.

I have a three dimensional surface Z, which exists in x, y and z.

I also have a vector, which is in the x-y plane.  I want to map this vector onto the surface.  Any ideas?

Also, once i've mapped the vector onto surface Z I then want to be able to see what the projecion of this new vector would be on the x-z plane.

Any help would be appreciated.  I'm totally stuck!!

Thanks