NetNews Usenet Archive 1992 #20/NN_1992_20.iso/spool/comp/windows/openloo/3803

Internet Message Format | 1992-09-11 | 3.9 KB

Xref: sparky comp.windows.open-look:3803 comp.lang.postscript:4668 comp.windows.x.apps:1008
Newsgroups: comp.windows.open-look,comp.lang.postscript,comp.windows.x.apps
Path: sparky!uunet!usc!rpi!gatech!ncar!hao.ucar.edu!sitongia
From: [e-mail] (Leonard Sitongia)
Subject: SUMMARY: Looking for PostScript previewer rendering 8-bits under X
Message-ID: <[e-mail]>
Keywords: postscript pageview ghostview
Sender: [e-mail] (USENET Maintenance)
Reply-To: [e-mail] (Leonard Sitongia)
Organization: High Altitude Observatory/NCAR, Boulder CO
References:  <[e-mail]>
Distribution: usa
Date: Fri, 11 Sep 1992 19:44:39 GMT
Lines: 79

In article <[e-mail]>, [e-mail] (Leonard Sitongia) writes:
> (The platform context is Sun workstation running SunOS 4.1.1 and
> OpenWindows, but we have access to Motif, standard MIT X11R4/R5 and SGI's.)
>
> A user here would like to find a previewer which supports the following
> features.
>
> >     The PS previewer should handle (ideally):
> >       1. 8-bit grayscale
> >       2. 8-bit color
> >       3. landscape and protrait modes
> >
>
> --
> --Leonard E. Sitongia           HAO System Manager
> [e-mail]          voice: [phone]   fax: [phone]
> High Altitude Observatory       P.O. Box 3000 Boulder CO  80307

I received several suggestions about this:

>From: [e-mail] (Cristy)
>Use `display' from contrib/ImageMagick.tar.Z:
>
>  display images.ps
>--
>[e-mail]

>From: [e-mail] (Liam Quin)
>Does the document have more than one page?
>
>If not, I _might_ have time to turn out something, or contact Tim Panton --
>[e-mail], who has an OLIT widget that dislays PostScript.  I do
>not believe he charges, but might be wrong.
>
>Lee

> From: [e-mail] (Brent Browning)
>    It's not 4 bits, that would only be 16 colors.  By default pageview uses a
> color cube with 140 colors.  You can get it to use a larger color cube of 240
> colors though.  The key here is that pageview just asks the server for a
> StaticColor visual.  The default is to provide one that only uses 140 colors so
> it won't clash with other X applications.  If you want more, at startup type
> "openwin -cubesize large".  From xnews(1):
>
>      [ -cubesize small | large ]
>           This determines the size of the color cube contained in
>           the StaticColor colormap, which is the default colormap
>           used by NeWS programs.  small is the default cube  size
>           value  since it leaves the most room for X11 clients to
>           allocate colors without conflicting with  NeWS  colors.
>           large  will generate better looking NeWS rendering, but
>           will increase the chance of conflicts between  X11  and
>           NeWS colors.
>
>           small provides a color cube with 5 colors along the red
>           axis,  5  along  the  green  axis, and 5 along the blue
>           axis.  It also provides 15 additional  shades  of  gray
>           above and beyond the grays contained in the color cube.
>           This can be described by the  syntax:  5x5x5+15.   This
>           gives  a  total of 140 colors). The large cube size, on
>           the other hand, provides  a  color  cube  of  the  form
>           5x9x5+15.  It has a total size of 240 colors.
>
>    If what you really want is 256 shades of gray you can start up
> pageview like this:
>
>     % pageview -visual StaticGray filename.ps
>
> Brent Browning            Internet: [e-mail]

The solution was ImageMagick. The newest version supports rendering
PostScript on the screen using GhostScript.

Thanks to all of you for your time.

--
--Leonard E. Sitongia           HAO System Manager
[e-mail]          voice: [phone]   fax: [phone]
High Altitude Observatory       P.O. Box 3000 Boulder CO  80307