Marc-Hendrik Bremer <Mar### [at] t-onlinede> wrote:


> Geoff Wedig schrieb in Nachricht <3aeefb25@news.povray.org>...

>>Well, this sort of reparameterization isn't in the manuals, really.

> The isosurface manual at http://users.skynet.be/smellenbergh/ covers the
> substitution of parameters quite good IIRC. Not exactly your though. BTW:
> wouldn't it be easier to use the build-in functions TH and R for that (never
> tried myself though)?

Possibly.  Didn't think of it at the time.  And yes, there are some good
reparameterization sites, but their not in the MP manual.  Functions are
only covered briefly there.

Geoff

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