[pstricks] Math expressions?

[Johan Ekh]

Thank you, it works.
However, I plan to make extensive use of mathematical expressions in several
kinds of
drawing commands, not only \psarc. I try to reproduce a detailed structural
drawing that
requires that all the different parameters in the pstricks drawing commands
are expressed
with variables in mathematical expressions. For instance, in the \psarc case
I would like
to give the (x,y) pair and the radius, {r}, as expressions in addition to
the angles.

Is there a straightforward way of doing this or is pstricks not suitable for
this specific task?

Best regards,
Johan

2006/11/22, Herbert Voss <LaTeX at zedat.fu-berlin.de>:
>
> Herbert Voss schrieb:
> > Johan Ekh schrieb:
> >
> >> How can I use mathematical expressions and variables when drawing lines
> >> and
> >> curves?
> >> I'd like to do something like:
> >>
> >> angleB=45
> >> \psarc[par](x,y){r}{angleA}{0.5*angleB+30}
> >
> > you have to disable the angle check.
> >
> > \documentclass{minimal}
> > \usepackage{pstricks}
> > \parindent=0pt
> >
> > \makeatletter
> > \def\pst at getangle#1#2{\def#2{#1}}
>
> \def\pst at getangle#1#2{\def#2{#1 }}% space after #1
>
> sorry, forgot this space here
>
>
> Herbert
>
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