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Re: how to revert to 8-bit color? [message #8436 is a reply to message #8353]

Tue, 04 March 1997 00:00

Robert Moss
Messages: 74
Registered: February 1996

Member

Mark Fardal wrote:
>
> Hi,
>
> I tried using IDL on the spiffy new Sun Ultra-1 here. All is fine,
> except IDL insists on using 24-bit color for the plotting window,
> and since I depend on a particular color table this is quite annoying.
> I stuck
> idl.gr_visual: PseudoColor
> in my .Xdefaults, and also issued the command
> device,pseudo_color = 8
> before creating a window. Neverthelsess, help,/device shows
> Display Depth, Size: 24 bits, (1280,1024)
> Visual Class: DirectColor (5)
> Bits Per RGB: 8
> Physical Color Map Entries (Used / Total): 256 / 256
> Colormap: Private, 16777216 colors. Translation table: Bypassed
> plus other stuff. And yes, 8-bit color is supported on this display
> according to xdpyinfo.
>
> What am I doing wrong?
>
> Thanks,
> Mark Fardal
> University of Colorado

You probably need to tell IDL the depth you want as well as the class.
Make sure you have both of these in your .Xdefatls:

idl.gr_visual: PseudoColor #type of visual
idl.gr_depth: 8 #depth of visual

You shouldn't need the device call if you do this.
--
Robert M. Moss, Ph.D. - mossrm@texaco.com - FAX (713)954-6911
------------------------------------------------------------ -----
This does not necessarily reflect the opinions of Texaco Inc.

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[Message index]

		how to revert to 8-bit color? By: Mark Fardal on Mon, 03 March 1997 00:00
		Re: how to revert to 8-bit color? By: Robert Moss on Tue, 04 March 1997 00:00
		Re: how to revert to 8-bit color? By: Phil Williams on Tue, 04 March 1997 00:00

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