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Pixmap Problems [message #6988]

Thu, 05 September 1996 00:00

Kenneth Kump
Messages: 3
Registered: August 1996

Junior Member

Howdy,

I'm working on a SUNOS IDL version 4.0.1 on an 8bit display with
a shared color table giving about 243 colors. I have slightly
modified the Black/white linear colortable and have set the color of
!d.n_colors-1=RED using tvlct.

Problem: Using Pixmaps I have discovered 2 problems

1) I have created a "mask" pixmap. It consists of 0's and
255's. The intention is to display an image, then do
device,set_graphics=1 (this is an AND) then do
device,copy=[...]. What happens is strange. The values which
are to be masked to Zero get a displayed color which is
very odd and random (looks like from private color table).
Non masked values are fine. When I do a tvrd() it has the
correct values, and I can re-tv this captured image and
it is perfect.

2) I create pixmap and tv a value of !d.n_colors-1 (RED).
Now I do a device,copy=[] (regular graphics mode)
and what I get is white instead of red.

What's going on? I need the speed of a pixmap, but results are
unsatisfactory.

Any hints appreciated,

-Ken Kump

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[Message index]

		Pixmap Problems By: Kenneth Kump on Thu, 05 September 1996 00:00
		Re: Pixmap Problems By: steinhh on Mon, 30 September 1996 00:00
		Re: pixmap problem By: Steve Ready on Thu, 28 August 2003 11:47
		Re: pixmap problem By: Karl Schultz on Thu, 28 August 2003 13:35
		Re: pixmap problem By: Karl Schultz on Thu, 28 August 2003 10:13
		Re: pixmap problem By: R.Bauer on Thu, 28 August 2003 09:53
		Re: pixmap problem By: Steve Ready on Thu, 28 August 2003 09:36
		Re: pixmap problem By: R.Bauer on Thu, 28 August 2003 00:15

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