I am no p9p expert, but on native plan9 you would do somthing like
grap plotfile | pic | troff -mm | lp -dstdout > plot.ps
This will generate a postscript version. Again on plan9 this is converted
on the fly by the lp printer subsystem into the apropriate form for your
printer.
You could add another step to generate a pdf if thats easier. -
grap plotfile | pic | troff -mm | lp -dstdout | ps2pdf > plot.pdf
hope this helps.
-Steve
