Ken <tyl### [at] pacbellnet> wrote in message
news:3887B90D.49355384@pacbell.net...
>
>
> Sigmund Kyrre Aas wrote:
> >
> > Images for an ongoing discussion in .unofficial.pathces.
> > Question is how to make these with the isosurface function.
>
> I think you should be looking at the implicit or parametric surface
> functions rather than the isosurface function.

the way the Maple input lines look, (I don't know Maple at all though)
they look like parametric equations, but since they appear to just
give the 'third' (z) in terms of the other two (x and y), they also are
good candidates for isosurfaces. That is,
    parametric {function x,y,f(x,y)}
can be done implicitly as
    isosurface{ function{z-f(x,y)}}
if the appropriate coordinate system is implemented.
(in my understanding, isosurface is just a particular type of implicit
surface)

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