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Re: Help with vert_colors and rgb_table [message #82958 is a reply to message #82957]

Tue, 29 January 2013 09:19

Mark Piper
Messages: 198
Registered: December 2009

Senior Member

On Monday, January 28, 2013 10:33:20 AM UTC-7, justinclouds wrote:
>
> What I need is to be able to show the color scale in the plot area to give an indication of the scale on the z values. Also, can the color range in z values be controlled?
>

There are a few ways to handle this. If you have IDL 8.2, here's one:

x = 2*!pi*findgen(50)/49
y = sin(x)*cos(2*x)
z = round(randomu(1, 50)*100)
p = plot(x, y, 'o', $
/sym_filled, $
vert_colors=bytscl(z), $
rgb_table=39)
cb = colorbar(rgb_table=39, $
range=[0,100], $
position=[0.50, 0.20, 0.90, 0.23])

Note that I bytescaled the Z values.

mp

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[Message index]

		Re: Help with vert_colors and rgb_table By: justinclouds on Tue, 29 January 2013 09:56
		Re: Help with vert_colors and rgb_table By: Mark Piper on Tue, 29 January 2013 09:19
		Re: Help with vert_colors and rgb_table By: David Fanning on Mon, 28 January 2013 09:40

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