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Re: Can somebody explain this? [message #41027 is a reply to message #41022]

Thu, 16 September 2004 07:46

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Matt Feinstein <nospam@here.com> writes:

> On Thu, 16 Sep 2004 08:16:57 -0500, Kenneth Bowman
> <k-bowman@null.tamu.edu> wrote:
>
>
>>
>> This is an obscure feature of using arrays as subscripts. See Building
>> IDL Applications, p 133.
...
>
> Whoa. Is there some, umm, logic behind this?

Yeah, crazy mountain-man logic.

My guess is that this is an IDL 1.0 "wouldn't it be cool if" feature,
but it is really a dangerous feature that open to accidental abuse.

The wouldn't it be cool aspect is that when one is using the list form
of indexing as a 1D lookup table, IDL's behavior automatically does
cropping to the table boundaries. Of course, not everybody has 1D
lookup tables, and not everybody wants the cropping behavior.

Craig

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

		Re: Can somebody explain this? By: sandrokan on Thu, 16 September 2004 23:06
		Re: Can somebody explain this? By: sandrokan on Thu, 16 September 2004 22:57
		Re: Can somebody explain this? By: Mark Hadfield on Thu, 16 September 2004 17:04
		Re: Can somebody explain this? By: K. Bowman on Thu, 16 September 2004 12:36
		Re: Can somebody explain this? By: James Kuyper on Thu, 16 September 2004 11:32
		Re: Can somebody explain this? By: sandrokan on Thu, 16 September 2004 11:09
		Re: Can somebody explain this? By: Craig Markwardt on Thu, 16 September 2004 07:46
		Re: Can somebody explain this? By: K. Bowman on Thu, 16 September 2004 07:42
		Re: Can somebody explain this? By: Matt Feinstein on Thu, 16 September 2004 06:57
		Re: Can somebody explain this? By: sandrokan on Thu, 16 September 2004 06:43
		Re: Can somebody explain this? By: K. Bowman on Thu, 16 September 2004 06:16

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