[pstricks] ngrid has maximum under calottesphere
Werner Grundlingh
wgrundlingh at gmail.com
Sun Mar 5 08:17:29 CET 2017
Consider the following minimal example:
\documentclass{article}
\usepackage{pst-solides3d}
\begin{document}
\begin{pspicture}(-5,-5)(5,5)
\psset{
viewpoint=0 20 4,
Decran=25,
lightsrc=viewpoint,
lightintensity=1,
}
\psSolid[
object=calottesphere,
r=3,
ngrid=90 120,% <---------------- change this to ngrid=150 150
theta=30,phi=-90,
grid,hollow,
fillcolor=white,incolor=green,
action=draw**
](0,0,0)
\end{pspicture}
\end{document}
The result looks like this:
[image: Inline image 1]
However, changing the ngrid parameters to (say) ngrid=150 150, the output
looks like this:
[image: Inline image 2]
Why is that? I'd like to get a "bowl" that is really smooth, and therefore
would like to increase the ngrid parameters to something large without
causing the above problem.
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