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Re: Merging Bytarr [message #23344 is a reply to message #23333]

Mon, 15 January 2001 22:23

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

"Mark Chan" <chanm@cadvision.com> writes:

> I am new to bytarr operation.
>
> I have 3 separate color images in the following format:
>
> bytarr(3,40,15500)
> bytarr(3,40,15500)
> bytarr(3,40,4000)
>
> Each representing a portion of a large image. They were read from 3 separate
> files.
>
> What is the easiest way to combine these 3 files into one file and output it
> to a single file for later operation.

I am assuming you want to concatenate the three arrays into a
3x40x35000 array. If that's the case then the following code shold
show you the way, here using three arrays BB1, BB2 and BB3 as a
example

IDL> bb1 = bytarr(3,40,100)
IDL> bb2 = bytarr(3,40,200)
IDL> bb3 = bytarr(3,40,400)

IDL> help, [[[bb1]],[[bb2]],[[bb3]]]
<Expression> BYTE = Array[3, 40, 700]

Voila. To be honest with you, I never understand how many nested []'s
I need in order to make it work. I just go for trial and error until
it does.

Craig

--
------------------------------------------------------------ --------------
Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: Merging Bytarr By: Stein Vidar Hagfors H[1] on Wed, 17 January 2001 09:01
		Re: Merging Bytarr By: Craig Markwardt on Wed, 17 January 2001 07:03
		Re: Merging Bytarr By: Mark Chan on Tue, 16 January 2001 20:19
		Re: Merging Bytarr By: Pavel A. Romashkin on Tue, 16 January 2001 10:52
		Re: Merging Bytarr By: Craig Markwardt on Mon, 15 January 2001 22:23

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