pstricks and inputs

[Michael J. Sharpe]

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>Last point first. The reason
>
>
>\def\mypoints{(0,0)(1,1)}
\expandafter\psline[linewidth=1.5pt,etc.]\mypoints

doesn't work is that the entire set of parameters must be included in 
the macro, or \expandafter won't reach it. That is,

\def\mypoints{[linewidth=1.5pt,etc.] (0,0)(1,1)}

Your axes macro seems to work if you remove the unnecessary \psclip 
...\endpsclip

Michael Sharpe

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>
>Someone else suggested the same thing and I'm still having problems so I
>better include all of the code:
>
>
>\def\axes#1 {
>\begin{pspicture}*(\xmin,\ymin)(\xmax,\ymax)\showgrid
>
>\psline[linewidth=1pt,linecolor=gray,arrowinset=0.6,arrowsize=1.5pt
>3]{<->}(\xmin,0)(\xmax,0)
>\psline[linewidth=1pt,linecolor=gray,arrowinset=0.6,arrowsize=1.5pt
>3]{<->}(0,\ymin)(0,\ymax)
>\psaxes[Ox=\xmin% ,Oy=\ymin%
>       ,ticks=none%
>       ,tickstyle=top%
>       ,linewidth=0.25pt
>       ,axesstyle=frame](\xmin,\ymin)(\xmax,\ymax)
>
>\psclip{\psframe(\xmin,\ymin)(\xmax,\ymax)}
>	\expandafter\psline#1
>\endpsclip
>\end{pspicture}
>}
>
>
>Now when I try to call
>
>\def\opairs{(-5,1)(-3,2)(-2,0)}
>\expandafter\axes{\opairs}
>
>I get:
>
>! Bad arrows specification: (-5,1)(-3,2)(-2,0).
>\@pstrickserr ...te help.}\errmessage {#1}
>                                          \endgroup
>l.203 \expandafter\axes{\opairs}
>
>
>I've tried to call the \axes macros several differnet ways with no success.
>Follow-up question, the following worked (outside the \axes macro above):
>
>\def\mypoints{(0,0)(1,1)}
>\expandafter\psline\mypoints
>
>
>But this does not. Why would parameters give me problems here?
>
>\def\mypoints{(0,0)(1,1)}
>\expandafter\psline[linewidth=1.5pt,etc.]\mypoints
>
>
>thanks
>ricky
>
>
>
>
>
>
>
>
>-----Original Message-----
>From: Michael J. Sharpe [mailto:msharpe at euclid.UCSD.EDU]
>Sent: Friday, September 24, 1999 1:28 PM
>To: pstricks at tug.org
>Cc: hensh at math.msu.edu
>Subject: Re: pstricks and inputs
>
>
>Denis doesn't seem to be jumping on this, so I'll take a stab. If you
>want to use a macro for the (entire) list of parameters, you must do
>it making use of \expandafter, as in
>
>\def\mypoints{(0,0)(1,1)}
>\expandafter\psline\mypoints
>
>otherwise\mypoints is not expanded before the parameter-reading
>apparatus gets to work. This seems to work even with  parameters
>included within braces, as for example in
>
>\def\mypoints{*[linewidth=3pt]{->}(0,0)(1,1)}
>\expandafter\psline\mypoints
>
>Michael Sharpe
>
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> >graphics in (La)TeX using the PSTricks package from Timothy van Zandt.
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> >
> >Can some one tell why the following generates an error?
> >
> >\def\mypoints{(0,0)(1,1)}
> >\psline\mypoints
> >
> >while this one works
> >
> >\psline(0,0)(1,1)
> >
> >??
> >
> >thanks
> >ricky
> >
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