Hi all.

I'm after some help from the more mathematically minded. I'm currently
working on a new macro for my next IRTC entry. In short I need a pov
based macro to do the following.

Given that the world coordinate system has a positive normal along the Y
axis of <0,1,0>. I need to transform a point from the world coordinate
system to a new coordinate system where the positive normal along the Y
axis is <X,Y,Z>. (ie something other than <0,1,0>)

Please email me direct.... and many thanks in advance.


-- 
regards

Nathan O'Brien
no1### [at] no13net
http://www.no13.net

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Nathan O'Brien <no1### [at] no13net> wrote:
: Given that the world coordinate system has a positive normal along the Y
: axis of <0,1,0>. I need to transform a point from the world coordinate
: system to a new coordinate system where the positive normal along the Y
: axis is <X,Y,Z>. (ie something other than <0,1,0>)

  I think that this can be achieved easyly with a matrix transformation.
See the section "Rotating from one vector to another" at
http://www.erols.com/vansickl/matrix.htm

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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