\loadcurrentMPgraphic from metafun manual

\loadcurrentMPgraphic from metafun manual

[nicola]

Hi,
I have tried the following example (metafun-p.pdf, p. 112-3):

\startMPgraphic 
draw unitsquare xscaled 5cm yscaled 1cm withpen pencircle scaled 2mm 
withcolor .625red; 
\stopMPgraphic 

\hbox \bgroup 
\loadcurrentMPgraphic{width=5cm,height=1cm}\placeMPgraphic \quad 
\loadcurrentMPgraphic{width=8cm,height=1cm}\placeMPgraphic \egroup

but nothing is drawn unless I remove the setups in curly braces (in 
which case a rectangle 5cm x 1cm is drawn). Is there a different way to 
pass options to the figure inclusion macro?

Nicola

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: loadcurrentMPgraphic from metafun manual

[Aditya Mahajan]

Quoting nicola <vitacolo@dimi.uniud.it>:

> Hi,
> I have tried the following example (metafun-p.pdf, p. 112-3):
>
> \startMPgraphic
> draw unitsquare xscaled 5cm yscaled 1cm withpen pencircle scaled 2mm
> withcolor .625red;
> \stopMPgraphic
>
> \hbox \bgroup
> \loadcurrentMPgraphic{width=5cm,height=1cm}\placeMPgraphic \quad
> \loadcurrentMPgraphic{width=8cm,height=1cm}\placeMPgraphic \egroup
>
> but nothing is drawn unless I remove the setups in curly braces (in
> which case a rectangle 5cm x 1cm is drawn). Is there a different way to
> pass options to the figure inclusion macro?

Interesting....what is happening is something equivalent to

\externalfigure
         [\MPgraphicfile.\the\currentMPgraphic]
         [type=mps,object=no,
          symbol=yes,reset=yes,
          maxwidth=,maxheight=,
          frame=off,background=,
          width=8cm,
          height=1cm]%

and there is no figure. If I remove object=no, the figure is there. I 
do not understand why object=no should affect the placement of the 
figure.

Aditya
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: loadcurrentMPgraphic from metafun manual

[Wolfgang Schuster]

On Fri, 08 Jun 2007 16:25:13 -0400
Aditya Mahajan <adityam@umich.edu> wrote:

> Quoting nicola <vitacolo@dimi.uniud.it>:
> 
> > Hi,
> > I have tried the following example (metafun-p.pdf, p. 112-3):
> >
> > \startMPgraphic
> > draw unitsquare xscaled 5cm yscaled 1cm withpen pencircle scaled 2mm
> > withcolor .625red;
> > \stopMPgraphic
> >
> > \hbox \bgroup
> > \loadcurrentMPgraphic{width=5cm,height=1cm}\placeMPgraphic \quad
> > \loadcurrentMPgraphic{width=8cm,height=1cm}\placeMPgraphic \egroup
> >
> > but nothing is drawn unless I remove the setups in curly braces (in
> > which case a rectangle 5cm x 1cm is drawn). Is there a different way to
> > pass options to the figure inclusion macro?
> 
> Interesting....what is happening is something equivalent to
> 
> \externalfigure
>          [\MPgraphicfile.\the\currentMPgraphic]
>          [type=mps,object=no,
>           symbol=yes,reset=yes,
>           maxwidth=,maxheight=,
>           frame=off,background=,
>           width=8cm,
>           height=1cm]%
> 
> and there is no figure. If I remove object=no, the figure is there. I 
> do not understand why object=no should affect the placement of the 
> figure.
> 
> Aditya

Hi,

right, the object=no value is the problem. You can solve your problem
by inserting the following macro somewhere before starttext in your
document:

\unprotect

  \def\insertMPfileARG#1#2%
    {\ifx\undefined\externalfigure
       \message{[insert file #1 here]}%
     \else
       \externalfigure
         [#1]
         [\c!type=\c!mps,\c!object=\v!yes,
          \c!symbol=\v!yes,\c!reset=\v!yes,
          \c!maxwidth=,\c!maxheight=,
          \c!frame=\v!off,\c!background=,
          #2]%
     \fi}

\protect

I changed only the "no" value from "object" to "yes".

Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________