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Re: SMOOTH [message #9347 is a reply to message #7837]

Fri, 20 June 1997 00:00

pit
Messages: 92
Registered: January 1996

Member

In article <33A960A1.17B7@astrosun.tn.cornell.edu>,
JD Smith <jdsmith@astrosun.tn.cornell.edu> writes:

> In my case, I was smoothing a positive definite
> image, and the smoothed image contained bands of negative values! I
> think arrays which contain a wide dynamic range of values are most
> susceptible. Converting to double precision seems to solve the problem,

Maybe it's an overflow like in

IDL> print,32767+10
-32759

Shure this would be a bug, but it explains the behaviour

Peter

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		Smooth scrolling zoom in draw widget; how? By: kak on Thu, 09 January 1997 00:00
		Re: SMOOTH By: pit on Fri, 20 June 1997 00:00

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