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colors and plot direct graphics function [message #82452]

Fri, 14 December 2012 15:31

Thibault Garel
Messages: 55
Registered: October 2009

Member

Hi,

I switched from idl 7 to 8.2 recently, and start using direct graphics
for plotting purposes.

To plot in colors in idl 7, I used to do:
loadct,39
plot,x,y,color=250
for a red line.

With direct graphics I can do:

p=plot(x,y,AXIS_STYLE=0,$
XRANGE=[0,30],YRANGE=[0,30],color='red')

But is there a way to load a color table and use a single number value
(e.g. 250 for red) for colors instead of a string with the plot
function?

I find it convenient to use that when you want to overplot many curves
of different colors in a for loop for instance.

I couldn't find this tip in the IDL help...

Thanks!

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