postscript dots (was Re: 4.0.1 tagged, next steps...)

[Hans-Bernhard B. <br...@ph...>]

On Thu, 1 Jul 2004, Daniel J Sebald wrote:

> (Note though, that points of "Lattice test for random 
> numbers" are so faint in PostScript they can hardly be seen... wiping 
> the dust off my screen helped a bit.  Probably a GhostView issue because 
> when the file is translated to PDF the points are darker.  There a bit 
> more detectable when the PostScript image is printed out, but not much.)

I think this is caused by ghostscript's anti-aliasing technique being in
use.  These dots are considerably smaller than a screen pixel, so in the
antialiased view, ghostscripts will display them not as black, but as the
average of a small black dot and a large white rest of the pixel's area,
coming out as a light gray.

-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.