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Re: Resizing Oddity [message #37859 is a reply to message #37855]

Thu, 29 January 2004 02:00

Bringfried Stecklum is currently offline

Bringfried Stecklum
Messages: 75
Registered: January 1996

Member

David Fanning wrote:

> I have two questions. The first is for all of you.
>
> 1. Why do I have to deconstruct my image to get what I
> expected to get with a single line of code? What is
> Congrid doing in Window 3 that is different from what
> it is doing in Window 4?
>

Dear David,

a quick look at congrid.pro reveals that for 3D arrays, linear interpolation
is always done (INTERP and CUBIC do not have any effect). In case of
2D arrays, however, INTERP=0 will force congrid to behave like rebin
which gives you the desired blocky appearance.

2nd question. What about

tv,congrid(rebin(testdog,400,3,550,/sam),400,3,400),true=2

cheers,

Bringfried

Bringfried Stecklum
Th"uringer Landessternwarte Tautenburg
Sternwarte 5, D - 07778 Tautenburg, Germany
Phone: +49-36427-863-54, FAX: +49-36427-863-29

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		Re: Resizing Oddity By: David Fanning on Thu, 29 January 2004 06:07
		Re: Resizing Oddity By: Bringfried Stecklum on Thu, 29 January 2004 02:00

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