| Re: cgColorBar with /device [message #80488] |
Wed, 13 June 2012 08:14 |
bio_amateur
Messages: 7
Registered: August 2010
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Junior Member |
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On Jun 13, 10:43 am, David Fanning <n...@idlcoyote.com> wrote:
> David Fanning writes:
>
>> bio_amateur writes:
>
>>> It seems that cgColorBar doesn't work when I use device coordinate,
>>> rather than normalized coordinate. Any idea?
>>> When I use
>>> cgColorbar, Range=[Min(data2D),Max(data2D)], $
>>> Divisions=12, XTicklen=1, XMinor=0, $
>>> AnnotateColor='black', NColors=nlevels, Bottom=1, $
>>> Format='(F0.2)', $
>>> Position=1000*[0.125, 0.915, 2.955, 2.95], /device, $
>>> Charsize=0.7 , /vertical
>
>>> It only gives me a white box with labels, no colors are filled in the
>>> box.
>
>> Yes, POSITION is always given in Normalized coordinates.
>> Across *all* IDL direct graphics routines. :-)
>
> By the way, positioning with DEVICE coordinates is
> a perfect way to totally screw up everything you hope
> to do with graphics. My advice would be to forget you
> ever heard about DEVICE coordinates. :-)
>
> 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.")
Thanks a lot David.
Bests,
Tuan
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| Re: cgColorBar with /device [message #80489 is a reply to message #80488] |
Wed, 13 June 2012 07:43  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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David Fanning writes:
>
> bio_amateur writes:
>
>>
>> It seems that cgColorBar doesn't work when I use device coordinate,
>> rather than normalized coordinate. Any idea?
>> When I use
>> cgColorbar, Range=[Min(data2D),Max(data2D)], $
>> Divisions=12, XTicklen=1, XMinor=0, $
>> AnnotateColor='black', NColors=nlevels, Bottom=1, $
>> Format='(F0.2)', $
>> Position=1000*[0.125, 0.915, 2.955, 2.95], /device, $
>> Charsize=0.7 , /vertical
>>
>> It only gives me a white box with labels, no colors are filled in the
>> box.
>
> Yes, POSITION is always given in Normalized coordinates.
> Across *all* IDL direct graphics routines. :-)
By the way, positioning with DEVICE coordinates is
a perfect way to totally screw up everything you hope
to do with graphics. My advice would be to forget you
ever heard about DEVICE coordinates. :-)
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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| Re: cgColorBar with /device [message #80490 is a reply to message #80489] |
Wed, 13 June 2012 07:39 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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bio_amateur writes:
>
> It seems that cgColorBar doesn't work when I use device coordinate,
> rather than normalized coordinate. Any idea?
> When I use
> cgColorbar, Range=[Min(data2D),Max(data2D)], $
> Divisions=12, XTicklen=1, XMinor=0, $
> AnnotateColor='black', NColors=nlevels, Bottom=1, $
> Format='(F0.2)', $
> Position=1000*[0.125, 0.915, 2.955, 2.95], /device, $
> Charsize=0.7 , /vertical
>
> It only gives me a white box with labels, no colors are filled in the
> box.
Yes, POSITION is always given in Normalized coordinates.
Across *all* IDL direct graphics routines. :-)
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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