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Re: ENVI evf File Format [message #78011]

Fri, 21 October 2011 09:24

guillermo.castilla.ca is currently offline

guillermo.castilla.ca
Messages: 27
Registered: September 2008

Junior Member

On Oct 20, 4:33 am, David Fanning <n...@dfanning.com> wrote:
> Folks,
>
> Is the ENVI *.evf file format published anywhere?
> Has anyone ever written an evf file from IDL itself?
>
Hi David,

I have never seen a document describing the internals of the evf
format. I think you can only manipulate evfs programatically using the
envi_evf_* routines. You could use shapefiles instead, with can be
dealt with the IDLffShape object class. ENVI can read shapefiles.

Cheers

Guillermo

> I have reason to consider writing some closed
> polygons in IDL as ENVI *.evf files. It appears
> ENVI has routines to do this. But has anyone done
> it using just IDL?
>
> Cheers,
>
> David
>
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.idlcoyote.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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