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ENVI Vector File with IDL [message #48357]

Thu, 13 April 2006 11:33

rafaloos
Messages: 15
Registered: January 2006

Junior Member

I am trying to create an Envi Vector File (EVF) with IDL.
ENVI has a funciton for doing that and also gives an example on how to
create a PRO file.

Here is a small piece of the code:

pro create_new_evf_file
;
; Create a Geographic projection
; with the default datum and units.
;
proj = envi_proj_create(/geographic)
;
; Define a polyline vector in Lat/Lon coordinates
;
polyline = [ $
-106.904, 41.5887, $
-106.821, 42.2302, $
-106.013, 42.2183, $
; ..........
; Initialize the new EVF file
;
evf_ptr = envi_evf_define_init('sample.evf', $
projection=proj, data_type=4, $
layer_name='Sample EVF File')
;...........

How can I call that ENVI_PROJ_CREATE function with IDL?
If I try to run the code as it is, I receive this message from IDL:

proj = envi_proj_create(/geographic)
^
% Syntax error.

Thanks

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[Message index]

		ENVI Vector File with IDL By: rafaloos on Thu, 13 April 2006 11:33
		Re: ENVI Vector File with IDL By: rafaloos on Fri, 14 April 2006 13:47
		Re: ENVI Vector File with IDL By: rafaloos on Fri, 14 April 2006 13:46
		Re: ENVI Vector File with IDL By: Michael Galloy on Fri, 14 April 2006 13:41
		Re: ENVI Vector File with IDL By: Michael Galloy on Fri, 14 April 2006 13:30
		Re: ENVI Vector File with IDL By: AEO on Fri, 14 April 2006 13:22
		Re: ENVI Vector File with IDL By: rafaloos on Fri, 14 April 2006 13:04
		Re: ENVI Vector File with IDL By: Michael Galloy on Fri, 14 April 2006 12:19
		Re: ENVI Vector File with IDL By: David Streutker on Fri, 14 April 2006 11:03
		Re: ENVI Vector File with IDL By: rafaloos on Fri, 14 April 2006 10:27
		Re: ENVI Vector File with IDL By: David Streutker on Fri, 14 April 2006 08:05

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