I quote from section 4.1.4 of the manual for POV v3.1g:  
"A vector is a set of related float values. Vectors may be specified
using literals, identifiers or functions which return vector values. You
may also create very complex vector
expressions from combinations of any of these using various familiar
operators."

I _SHOULD_ be able to use the identifiers as vectors in the prism
statement, shouldn't I?  If not, the above is a LIE!

Anyone?  (Bueller?...)
--Mark

"hughes, b." wrote:
> 
> "LibraryMan" <mrm### [at] attnet> wrote in message
> news:3DCFEC0E.9C09C925@att.net...
> > The number of sides to the extruded shape is not as much the matter as
> > is the question of how to rotate vectors of a given distance from the
> > origin (in XZ plane) around the y-axis.  Looks like this 'vrotate' is
> > worth a look.  Let me go study some...  Unless of course one of you
> > decides to GIVE me the answer... ;-)
> 
> I don't think anything written up for POV so far does something with the uv
> kind of vectors such as prism uses. Checking out vrotate for that here got
> me nowhere even though I tried to use the dot operator in an attempt to
> limit the usual 3 float vectors to two floats but POV will not allow it into
> the prism.
> 
> I had a feeling you knew a prism wasn't going to do a dodecahedron but I
> didn't catch on about the dodecagon name and jumped ahead that you were
> confused about the prism. My fault, sorry.
> 
> If anyone tells of a way to work with the uv vector, as described above, I'm
> all ears too.

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