Le 11 juin 2022 à 11:30, Stefan Nedeljkovic <tsar.srb@gmail.com> a écrit :

That's it, but how do I center it on (0, 0)?

Sorry, I misunderstood the question. Here is a solution (perhaps there is a simpler solution !):

\startMPpage

picture TheImage ; 

TheImage := image(

draw externalfigure "cow.pdf";

);

TheImage := TheImage shifted -center(TheImage);

draw TheImage ;

draw (0,0) withpen pencircle scaled .2in withcolor magenta ;

\stopMPpage

Fabrice.

On Sat, Jun 11, 2022 at 4:46 PM Fabrice L <fabrice.alpha@gmail.com> wrote:

Dear Stephan,

Le 11 juin 2022 à 08:57, Stefan Nedeljkovic via ntg-context <ntg-context@ntg.nl> a écrit :

Dear list,

I would like to place a pdf file at (0, 0), centered at original size on a MPpage, and draw over it. But using the input command doesn't work. How should I approach this?

Like this ?

\startMPpage

       draw externalfigure "thefile.pdf";

       (… other commands…) 

\stopMPpage

Sincerely,

Stefan

Fabrice.

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