[NTG-context] Processing MP graphics without interference

Aditya Mahajan adityam at umich.edu
Fri Feb 1 21:50:46 CET 2013


On Fri, 1 Feb 2013, Marco Patzer wrote:

> Hi,
>
> I have MetaPost graphics that are generated by an external program.
> Each graphic is an individual file and the code is enclosed by
>
>  beginfig(1)
>>  endfig;
>  end
>
> The beginfig argument is always “1”, it does not increment.
> Including the graphics using MPrun fails, since the first figure's
> “end” stops the MetaPost run:
>
> \startMPrun{foo}
>  beginfig(1);
>    fill fullcircle scaled 1cm withcolor blue;
>  endfig;
>  end; %% prevents the second graph from being processed
> \stopMPrun
>
> \startMPrun{bar}
>  beginfig(1);
>    fill unitsquare scaled 2cm withcolor red;
>  endfig;
>  end;
> \stopMPrun
>
> \starttext
>  foo: \externalfigure[mprun:foo.1]
>  bar: \externalfigure[mprun:bar.1] %% not shown
> \stoptext
>
> I want to avoid preprocessing the generated MP graphics, if possible
> (stripping the “end”s). What is the best way to deal with these
> graphics?

(Untested), something like:

let normalend=end;
let end=relax; % Don't know the MP equiv.
...
...

let end=normalend;

Aditya


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