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Re: ps_start and color [message #80251]

Fri, 25 May 2012 09:26

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

simona bellavista writes:

>
>> Unless you are using an ancient version of the Coyote
>> Library, I don't see any way this doesn't produce
>> a red line. In fact, I don't see any possibility
>> that it doesn't produce a red line in PostScript.
>
> I downloaded the last version of the coyote library just before posting here.
>
>> So, I guess the question is. What makes you think
>> it doesn't?
>
> experimenting. It doen't work, not on my system at least.
>
> my system is linux
> the exact code I used is the following and I run it like a script:
>
> ps=1
> datacolor=cgcolor("Red",!D.table_size-4)
> filename ='~/idl/test.eps'
>
> if (ps eq 1) then ps_start, file = filename
> if (ps ne 1) then begin $
> & set_plot, 'x' $
> & window, 0, retain = 2 $
> & endif
>
> N=100
> sp = dindgen(N)
> vector1 = replicate(0.5,N)
> vector2 = replicate(0.6,N)
>
> multiplot,[1,2]
> plot, sp, vector1, xstyle=1, yr=[0,1]
> oplot, sp, vector2,color=datacolor
>
> multiplot
> plot, sp, vector1, xstyle=1, yr=[0,1]
> oplot, sp, vector2,color=datacolor
>
> multiplot,/reset
> if (ps eq 1) then ps_end

Ah, well, that's not the code you sent before. In the
code we were testing, you loaded the color AFTER you
ran PS_START. If you do it *before* you run PS_START
there is a possibility the color will be wrong, depending
upon how your machine is set up.

There would be no confusion if you specified the color
on the command line that used the color, or (a MUCH better
solution!) you used Coyote Graphics commands to draw your
graphics.

But, in your case, just moving the color definition to
after the PS_Start command will solve your problem.

Cheers,

David

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

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[Message index]

		Re: ps_start and color By: David Fanning on Fri, 25 May 2012 09:26
		Re: ps_start and color By: simona bellavista on Fri, 25 May 2012 08:52
		Re: ps_start and color By: David Fanning on Fri, 25 May 2012 09:15
		Re: ps_start and color By: simona bellavista on Fri, 25 May 2012 09:26
		Re: ps_start and color By: simona bellavista on Fri, 25 May 2012 09:11
		Re: ps_start and color By: David Fanning on Fri, 25 May 2012 09:09
		Re: ps_start and color By: simona bellavista on Fri, 25 May 2012 09:05
		Re: ps_start and color By: simona bellavista on Fri, 25 May 2012 09:03
		Re: ps_start and color By: wlandsman on Fri, 25 May 2012 08:43
		Re: ps_start and color By: David Fanning on Fri, 25 May 2012 08:38
		Re: ps_start and color By: simona bellavista on Fri, 25 May 2012 09:56

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