Use external graphics

[Johann Höchtl]

Hello!

I would like to use an external graphics package like gnuplot or metapost to 
create some diagrams.

However, when it comes to labels, those labels should be typeset using lout, 
especially equations.

When lout loads an eps - graphic, does it understand it's structure and would 
it be possible to do replacements in the eps file before it gets included? 
Right now i am thinking of setting some placeholder as labels and replace them 
with the appropriate lout text.

Is @Filter my friend or am i left alone with awk and its companions?

Regards,

    Johann