| Re: Very complicated visualization problem [message #60026] |
Fri, 25 April 2008 21:53  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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khaldanr@gmail.com writes:
> Please give me more details, I did not understand how to do that.
> Actually I am beginner in IDL and I do not know yet so much. Please I
> need more details.
Well, then why are starting with heart surgery? I'd learn
to suture a cut first.
But, anyway, you have a handful of "regions", right?
They don't overlap. So make a 500x500 byte array.
Assign each of your regions a number (1 to 7, if you
like). In turn, take the the pixels that make up a region
and assign them a number in the byte array. You will get
a 2D array that has the regions all identified by a different
number. Load a color table with that many colors, and just
display it.
display = Bytarr(500, 500)
display[region_1] = 1
display[region_2] = 2
etc.
Loadct, 13, NCOLORS=nregions, BOTTOM=1
TV, display
It turns your "complicated" visualization problem into
something a whole lot simpler.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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| Re: Very complicated visualization problem [message #60027 is a reply to message #60026] |
Fri, 25 April 2008 19:16  |
khaldanr
Messages: 3
Registered: April 2008
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Junior Member |
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On Apr 25, 7:43 pm, David Fanning <n...@dfanning.com> wrote:
> khald...@gmail.com writes:
>> Please any help in this complicated problem.
>
> If there is no overlap, just assign a different
> number to each segment, collapse the three channel
> image into a single 2D image, and display that with
> any color table you like.
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")
Dear David,
Please give me more details, I did not understand how to do that.
Actually I am beginner in IDL and I do not know yet so much. Please I
need more details.
Thank you very much,
Khaldan
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| Re: Very complicated visualization problem [message #60161 is a reply to message #60026] |
Sun, 27 April 2008 17:09 |
khaldanr
Messages: 3
Registered: April 2008
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Junior Member |
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On Apr 25, 10:53 pm, David Fanning <n...@dfanning.com> wrote:
> khald...@gmail.com writes:
>> Please give me more details, I did not understand how to do that.
>> Actually I am beginner in IDL and I do not know yet so much. Please I
>> need more details.
>
> Well, then why are starting with heart surgery? I'd learn
> to suture a cut first.
>
> But, anyway, you have a handful of "regions", right?
> They don't overlap. So make a 500x500 byte array.
> Assign each of your regions a number (1 to 7, if you
> like). In turn, take the the pixels that make up a region
> and assign them a number in the byte array. You will get
> a 2D array that has the regions all identified by a different
> number. Load a color table with that many colors, and just
> display it.
>
> display = Bytarr(500, 500)
> display[region_1] = 1
> display[region_2] = 2
> etc.
> Loadct, 13, NCOLORS=nregions, BOTTOM=1
> TV, display
>
> It turns your "complicated" visualization problem into
> something a whole lot simpler.
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")
Thank you very much David. I really appreciate your help!.
Khaldan
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