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Re: IDL causes color table flashing on SGI with Irix 6.0.1 [message #3536 is a reply to message #3458]

Thu, 02 February 1995 11:17

pellet
Messages: 12
Registered: October 1994

Junior Member

H. Ian Novack (ian@gomez.Jpl.Nasa.Gov) wrote:
: Word has it that Liam Gumley <liamg@ssec.wisc.edu> may have said:
: [stuff deleted]
: >The images displayed in the demo look quite normal *until* the cursor
: >is moved inside the draw window. At this point the color table for the
: >whole screen abruptly changes, and then changes back to the original
: >table when the cursor is removed from the draw window. I have seen this
: >happen before on a PC running an X server, but never on a Unix box.
: [snip]

: That's an effect of IDL using more colors than are currently available
: (as in not being used by other apps). When this happens, IDL makes
: a local colormap that is only in effect when the cursor is in the image
: windows. I use this effect to get 256 colors regardless of what's
: running on my 8-bit X terminal. In your case, you might be able to
: get around it by setting IDL*colors to a negative number in your
: .Xdefaults file, or by saying "window, colors = 200" or some such as the
: first command in your IDL session.

I use to run IDL on a SGI Iris and I had a similar problem. I reduced
the number of colors reserved for IDL, as suggested above, but the
problem still showed when the mouse went over either an icon or any GL
graphic windows. I also recall that RSI was unable to fix this.
Other than that, it worked great.

Jeff
pellet@inrs-ener.uquebec.ca

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[Message index]

		Re: IDL causes color table flashing on SGI with Irix 6.0.1 By: ian on Wed, 01 February 1995 09:37
		Re: IDL causes color table flashing on SGI with Irix 6.0.1 By: pellet on Thu, 02 February 1995 11:17
		Re: IDL causes color table flashing on SGI with Irix 6.0.1 By: Liam Gumley on Thu, 02 February 1995 06:41

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