On Tue, 21 Aug 2001 14:02:43 -0700, Ben Chambers wrote:
>
>No, you're right - I was thinking sphere.  Sorry. :)

It's even worse with spheres: there are an infinite number of spheres that
go through any given two points.  In fact, there are an infinite number of
spheres that go through any given THREE points.  You need four points to
uniquely determine a sphere.

--
#macro R(L P)sphere{L __}cylinder{L P __}#end#macro P(_1)union{R(z+_ z)R(-z _-z)
R(_-z*3_+z)torus{1__ clipped_by{plane{_ 0}}}translate z+_1}#end#macro S(_)9-(_1-
_)*(_1-_)#end#macro Z(_1 _ __)union{P(_)P(-_)R(y-z-1_)translate.1*_1-y*8pigment{
rgb<S(7)S(5)S(3)>}}#if(_1)Z(_1-__,_,__)#end#end Z(10x*-2,.2)camera{rotate x*90}

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