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Re: window colour maps [message #9938 is a reply to message #9934]

Tue, 23 September 1997 00:00

Liam Gumley
Messages: 473
Registered: November 1994

Senior Member

Peter Gallagher wrote:

> Does anyone know how to select a separate colour map for several
> windows? I am currently working with 2 windows; I want one window
> with a black and white colour map and the other with a red temp.
> colour table.

It's pretty easy: just split the color table in half as shown below.

;------------------------------------------
pro test

;- create two windows and save their window ids

window, /free
w1 = !d.window
window, /free
w2 = !d.window

;- assign colors for window 1

bottom1 = 0L
ncolors1 = !d.table_size / 2

;- assign colors for window 1

bottom2 = ncolors1
ncolors2 = !d.table_size - ncolors1

;- display an image in the first window with a greyscale color table

wset, w1
loadct, 0, bottom = bottom1, ncolors = ncolors1
tv, bytscl( dist(256), top = ncolors1 - 1 ) + byte( bottom1 )

;- display an image in the second window with a red/white color table

wset, w2
loadct, 3, bottom = bottom2, ncolors = ncolors2
tv, bytscl( dist(256), top = ncolors2 - 1 ) + byte( bottom2 )

end
;------------------------------------------

Cheers,
Liam.

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		Re: window colour maps By: David Foster on Tue, 23 September 1997 00:00
		Re: window colour maps By: Liam Gumley on Tue, 23 September 1997 00:00

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