The image I'm trying to render is far to complicated to explain in a brief
post, so I'll just post the problematic code and the #declares at the
beginning of the file.



#declare circlerad = 3;
#declare bandrad = (circlerad*14)/(2*pi);
#declare cangle = 14/360;
#declare stringthick = .1;


#macro getpoint (c,d)
  vaxis_rotate( vaxis_rotate(<circlerad,0,bandrad>,z,d*10), y,(c-1)*cangle)
#end



The basic idea is that getpoint should return the point that is d*10 degress
around the circle numbered c. The circles are numbered starting from c=0,
going ccw, and spaced evenly around the outside "band" so that there are 14
in all. The -1 is for clarity (so that the numbers start at #1).

But getpoint doesn't return the proper points. The value that it seems to be
returning is actually:

vaxis_rotate(<circlerad,0,bandrad>,z,d*10)

no matter what value of c is passed.

I'm sorry if the problem is a bit confusing without knowing the rest of the
code, but it's a long file. I'll post it if needed though.

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