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Loop Arrays [message #26979]

Tue, 09 October 2001 12:33

Ken Mankoff
Messages: 158
Registered: February 2000

Senior Member

Hi,

I am interested in creating circular arrays, where subscripts that would
be out-of-bounds on a regular array just start indexing on the other side
of the array.

ex:
a = circleIndgen( 10 )
print, a[ -1 ]
9
print, a[ 11 ]
1
print, a[ [0,10,20,100] ]
0, 0, 0, 0

print, a[ 8:11 ]
8, 9, 0, 1

;;; not sure if this makes sense, but i think it can easily be
;;; done if the rest is possible...
print, a[ 8:2 ]
8, 9, 0, 1

I think that overloading the [] operators is not an option from my
understanding of IDL. Does anyone know if this is possible? Desirable?
Dumb?

Thanks,

-k.

--
Ken Mankoff
LASP://303.492.3264
http://lasp.colorado.edu/~mankoff/

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[Message index]

		Loop Arrays By: Ken Mankoff on Tue, 09 October 2001 12:33
		Re: Loop Arrays By: Craig Markwardt on Tue, 09 October 2001 22:46
		Re: Loop Arrays By: David Fanning on Tue, 09 October 2001 14:09
		Re: Loop Arrays By: K. Bowman on Tue, 09 October 2001 13:50
		Re: Loop Arrays By: Ken Mankoff on Tue, 16 October 2001 10:49
		Re: Loop Arrays By: Ken Mankoff on Tue, 16 October 2001 08:11
		Re: Loop Arrays By: R.G.S. on Mon, 15 October 2001 09:46

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