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reading shapefiles & IDL objects [message #78778]

Tue, 20 December 2011 15:48

desertdryad
Messages: 39
Registered: August 2011

Member

I'm trying to write a function that can read GIS shapefiles in IDL.
I'm new to this and to using objects in IDL; but I seem to be stuck
right at the gate for reasons I cannot fathom. Here is the snipet of
code at hte beginning of my function:

-------------------------

function readshape, filename

; test script for reading a shapefile into idl and finding data
contained w/in

myshape = obj_new('IDLffShape', filename)
help, myshape

--------------------------

Now, I know for certain that the shapefile exists whose name gets
passed as 'filename' and I've specified the path at the command line.
Yet, I get this error:

ENVI> testme = readshape('C:\\etotest\pivot6.shp')

MYSHAPE OBJREF = <NullObject>
% Stop encountered: READSHAPE 7 C:\Cyndys\Default
\readshape.pro

What on Earth am I doing wrong, here? Please advise.

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[Message index]

		reading shapefiles & IDL objects By: desertdryad on Tue, 20 December 2011 15:48
		Re: reading shapefiles & IDL objects By: desertdryad on Wed, 21 December 2011 13:27
		Re: reading shapefiles & IDL objects By: kristen234 on Thu, 28 June 2012 14:40
		Re: reading shapefiles & IDL objects By: desertdryad on Wed, 21 December 2011 13:16
		Re: reading shapefiles & IDL objects By: David Fanning on Wed, 21 December 2011 12:12
		Re: reading shapefiles & IDL objects By: desertdryad on Wed, 21 December 2011 11:04
		Re: reading shapefiles & IDL objects By: desertdryad on Wed, 21 December 2011 10:13
		Re: reading shapefiles & IDL objects By: David Fanning on Wed, 21 December 2011 10:10
		Re: reading shapefiles & IDL objects By: David Fanning on Thu, 28 June 2012 15:00

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