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Re: call ENVI menu routines [message #72603]

Thu, 23 September 2010 05:35

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Maxwell Peck writes:

> I'm sure you've covered this before but were the shapefiles you were
> overlaying in the same projection as your image? I only mention this
> because I often overlay large shapefiles on very big images and while
> it can be a little bit slow sometimes i've never found it to be bad.

No, probably not. It was a while ago, but I think I converted
the IDL continental database to a vector file, and I believe
I tried the GSHHS shapefiles. Neither are in a particular
map projection. Everything I tried was exceedingly slow.
No doubt there is a faster way, but I never discovered it.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: call ENVI menu routines By: David Fanning on Thu, 23 September 2010 05:35
		Re: call ENVI menu routines By: Maxwell Peck on Thu, 23 September 2010 01:23
		Re: call ENVI menu routines By: David Fanning on Wed, 22 September 2010 15:07
		Re: call ENVI menu routines By: Maxwell Peck on Wed, 22 September 2010 14:44
		Re: call ENVI menu routines By: David Fanning on Wed, 22 September 2010 11:55
		Re: call ENVI menu routines By: David Fanning on Wed, 22 September 2010 11:45
		Re: call ENVI menu routines By: rogass on Wed, 22 September 2010 11:39
		Re: call ENVI menu routines By: Mort Canty on Wed, 22 September 2010 11:17
		Re: call ENVI menu routines By: David Fanning on Wed, 22 September 2010 09:38

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