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Device's bits_per_pixel keyword [message #13455]

Wed, 11 November 1998 00:00

Charles Cavanaugh
Messages: 8
Registered: July 1997

Junior Member

<HTML>
I have a program that generates color postscript plots, and I want to make
the files
 smaller.  I have tried :

set_plot, 'PS'
 device, bits_per_pixel = 2
 .
 .
 .
 device, /close

but the file generated is only very slightly smaller than when I do
not use the
 bits_per_pixel keyword.  I've also tried bits_per_pixel = 1, 4
and 8, but the file
 size change is so very slight (and in some cases larger then when the
keyword
 is not used).

If anyone has been able to generate considerably smaller postscript
files by using
 the bits_per_pixel keyword, please let me know how to do that. 
Thank you.

I'm using IDL 5.1 on an SGI workstation running IRIX 6.5.1.
  

Charles
<PRE>-- 
Charles Cavanaugh
MOPITT & HIRDLS Programs
National Center for Atmospheric Research
Boulder, CO, USA
email: cavanaug@ucar.edu
phone: (303) 497-2919
fax  : (303) 497-2920</PRE>
 </HTML>

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[Message index]

		Device's bits_per_pixel keyword By: Charles Cavanaugh on Wed, 11 November 1998 00:00
		Re: Device's bits_per_pixel keyword By: thompson on Fri, 13 November 1998 00:00
		Re: Device's bits_per_pixel keyword By: thompson on Fri, 13 November 1998 00:00

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