[hpoj-devel] Scaling?

[Bob P. <bpa...@cs...>]

I've been trying for some time now to get some thing printed the same scale 
on my HP710 as what my screen shows.

For example if I draw a line with Gimp that is one inch long, I want a one 
inch long line to come out on the paper.  I realize there are aspect ratio 
differences and other such minutia when going from screen to printer, I'm 
going by a simple measured line in this case.

I've tried every thing short of writing raw postscript by hand, and several 
programs, but it seems like what comes out on the paper is always smaller by 
about five to ten percent.

Can some one tell me what part of this printer mess would be mucking about 
with such things?

I'm using cups, with the 550C driver/filter, and the latest code for ptal-hp 
from CVS, Mandrake 8.0.

Any recomendations on how to do What You See Is What You get when dealing 
with graphics?  Specificily printed circuit board art work.