Re: gEDA-user: PCB produces invalid postscript

[Karel Kulhavy <clock@xxxxxxxxxxxxx>]

On Wed, Apr 19, 2006 at 11:01:24AM -0400, DJ Delorie wrote:
> 
> > OK understand. However I still wonder if the Postscript actually
> > defines a device-independent shade of gray (this is quite easy to
> > define physically as a fraction of white photon flux).
> 
> I don't think so.  They do define transfer functions and halftone
> functions to allow you (or the printer) to adapt the color spaces to
> your specific needs.  I think this is outside the scope of PCB though.

I would like to display the postscript on my laptop. Black means
0 photons per some time and white means 100 photons. How many photons
is the gray supposed to have per the same time?

CL<