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Re: Help with vert_colors and rgb_table [message #82972 is a reply to message #82958]

Mon, 28 January 2013 09:40

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

justinclouds writes:

> I am trying to plot x, y and z where x and y are plotted in XY plot and z is a color vector. This is the command I use and it works well:
>
> p=plot(x, y, symbol='o', LINESTYLE = ' ', vert_colors=z, rgb_table=39)
>
> 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?
>
> More info:
> x, y and z are FLOAT = Array[507]
> z has range from 0 to 100.
>
> Any help with proper syntax is appreciated.

I don't know how this is done in function graphics. There
is an example of how it is done in Coyote Graphics in the
Colored Line Plots example in the Gallery. To restrict Z
to 100 colors, for example, simply replace the value
255 with 100 in the elevColors variable, and restrict your
color table to 100 colors with the NColors keyword.

http://www.idlcoyote.com/gallery/

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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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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