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Re: Use IDLanROI or not [message #84415 is a reply to message #84413]

Mon, 03 June 2013 07:22

Fabzi
Messages: 305
Registered: July 2010

Senior Member

On 06/03/2013 04:03 PM, David Fanning wrote:
> I wasn't aware of a bug in it (yikes!).

The bug was in IDLanROIgroup, I had to send a bugfix to ExcelisVIS:
http://comp.lang.idl-pvwave.narkive.com/qftQBzrg/crashing-ro i-s

I like IDLanROI's but I wish the ->ContainsPoints method to be faster.
It is so slow in comparison to ->ComputeMask !!!

Anyways, I would also suggest to use it but be careful. The output
depends on what you define as grid and grid points. I use mostly
atmospheric model data where grid coordinates are located in the center
of the pixels, while in imagery it is often at the corner. Every time I
start to think about this again I have to redo the tests by myself to
remember which point of view IDLanROI uses ;-)

Cheers,

Fab

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[Message index]

		Re: Use IDLanROI or not By: David Fanning on Mon, 03 June 2013 07:29
		Re: Use IDLanROI or not By: David Fanning on Mon, 03 June 2013 07:27
		Re: Use IDLanROI or not By: Fabzi on Mon, 03 June 2013 07:22
		Re: Use IDLanROI or not By: Helder Marchetto on Mon, 03 June 2013 07:19
		Re: Use IDLanROI or not By: David Fanning on Mon, 03 June 2013 07:03

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