Dave! <orr### [at] no_spam_pleaseexcitecom> wrote:
> However, I sort of accidentally discovered that I could create the surface I
> needed more easily through a matrix transformation of a simple cylinder.

  Since you can't turn a cylinder into a conical shape where each end has
a different size with a matrix transformation, and since a transformed
cylinder is exactly what you wanted, your original description of the
problem was not very accurate... :P

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -

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Warp <war### [at] tagpovrayorg> wrote:
> Dave! <orr### [at] no_spam_pleaseexcitecom> wrote:
> > However, I sort of accidentally discovered that I could create the surface I
> > needed more easily through a matrix transformation of a simple cylinder.
>
>   Since you can't turn a cylinder into a conical shape where each end has
> a different size with a matrix transformation, and since a transformed
> cylinder is exactly what you wanted, your original description of the
> problem was not very accurate... :P

Well, mis-diagnosis is part of the problem, sure!  I'm modelling from a
real-world object, and my initial description was based on my initial
(admittedly incorrect) study of the object.  I didn't realize until last
night that the surface I needed was cylindrical rather than conic.

Still, I've received lots of good info about isosurfaces, so it works out
for me either way!

Dave!

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