Re: quality of postscript display
On Fri, Mar 16, 2001 at 04:40:32PM -0500, Steven K Thompson wrote:
> I have Debian 2.2r2 on a Vaio F340 laptop. When I view a
> postscript file with gv, the type is broken and hard to
> read on the display. This is true for example when I try
Hmm.. are you sure anti-aliasing is enabled?
If not then enable it in the "state" menu.
> to view files in the Debian documentation that are provided
> in postscript form, such as debian-guide, and is also true
> when I have created the postscript file myself with dvips.
> In contrast, the type is very clear
> for example when viewing a latex dvi file with xdvi.
xdvi does have anti-aliasing enabled by default it can be switched
on/off with shift-G
> Would my problem have to do with the fonts used in the
> postscript file or something quite different?
When anti-aliasing is turned of the pixels at the border of a letter
are either black or white ... this doesn't look good for most scalable
fonts as they are not designed for low-resolution devices.
Anti-aliasing smooths the border of the fonts by using gray pixels
and their brightness depends on how much of that pixel is really
covered by the letter.
> I would appreciate any explanation and advice anyone can
> provide on this.