Some images created to illustrate these macros. They are available at

  http://www.primenet.com/~vanukoff/3d/povray/

AngOfDist -> returns the angle of a distance on a circumference, specify
radius, and distance, returns the angle. The angle is calculated to evenly
divide into 360, so you can create rings of evenly spaced objects with no
uneven gaps.

RGBfromHue -> returns an RGB vector specifying a color of the hue you have
passed it. Hue is specified from 0 - 1, where 0 is red, 1/6 is yellow, 1/3
is green, 1/2 is cyan, 2/3 is blue, 5/6 is magenta, and 1 is red again. An
invalid hue value will return gray.

Comments welcome.

--
Paul Vanukoff
van### [at] primenetcom

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