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Re: log scale colorbar in IDL 8.0 [message #76202 is a reply to message #76113]

Thu, 19 May 2011 09:53

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

>
> Paolo writes:
>
>> By the way, the cg version doesn't seem to be properly
>> honoring the axis ranges. For instance, a y range of
>> [-100,100] should show an image only in the upper half
>> of the axis, as the image y-range is only [0,127]...
>>
>> (well one could wonder why would you plot that way...
>> but the idea behind pg_plotimage was to plot an image the
>> same way you would use "plot"...)
>
> Hi Paolo,
>
> I have no trouble fixing this for the display, but
> I can't make it write a proper PostScript file. I've
> gone back to the original code, and I can't make that
> program write a proper PostScript file with this command
> either! Have you ever tried to write a PostScript file
> with the commands above in your original program? :-)

Here is the code I am using with your original program.

loadct,5
im=dist(128,128)
x=findgen(128)
y=findgen(128)
ps_start, filename='test_1.ps'
pg_plotimage,im,x,y,xrange=[5,100],$
yrange=[5,100],/xstyle,/ystyle,/xlog
ps_end
ps_start, filename='test_2.ps'
pg_plotimage,im,x,y,xrange=[5,100],$
yrange=[-100,100],/xstyle,/ystyle,/xlog
ps_end
END

test_1.ps seems to be fine. But test_2.ps is
buggered. :-)

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]

		log scale colorbar in IDL 8.0 By: Kim on Tue, 17 May 2011 13:25
		Re: log scale colorbar in IDL 8.0 By: David Fanning on Thu, 19 May 2011 13:26
		Re: log scale colorbar in IDL 8.0 By: pgrigis on Thu, 19 May 2011 12:36
		Re: log scale colorbar in IDL 8.0 By: David Fanning on Thu, 19 May 2011 11:00
		Re: log scale colorbar in IDL 8.0 By: pgrigis on Thu, 19 May 2011 10:52
		Re: log scale colorbar in IDL 8.0 By: David Fanning on Thu, 19 May 2011 09:53
		Re: log scale colorbar in IDL 8.0 By: David Fanning on Thu, 19 May 2011 09:42
		Re: log scale colorbar in IDL 8.0 By: David Fanning on Thu, 19 May 2011 09:02
		Re: log scale colorbar in IDL 8.0 By: pgrigis on Thu, 19 May 2011 08:53
		Re: log scale colorbar in IDL 8.0 By: davide.fedele on Thu, 12 March 2015 06:36

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