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Re: Shapefile 'parts' woes [message #59400 is a reply to message #59379]

Wed, 19 March 2008 05:33

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Gaurav writes:

> I have a shapefile with many polygons. Most of these polygons have
> holes and hence these have multiple parts. I wish to create a new
> shapefile by modifying points in some 'parts' of the polygons. How do
> I acess the points of a particular 'part' of a polygon? I went through
> the two examples: the one in help and the other in demo programs-
> showing the globe, but could not deduce how to solve my problem.

You might be able to deduce how to access these parts, which I
call "cuts" in DRAWSTATES, a program to try shapefiles:

http://www.dfanning.com/programs/drawstates.pro

> Would anyone be kind enough to bail me out of the rut or point me to
> some link where I might be shone upon with the divine light?

Don't look for divine light from me. I remember it as
a confusing slog, with more perspiration than inspiration.
What you see in that program is the sum total of my knowledge
of shapefiles, if not more.

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: Shapefile 'parts' woes By: David Fanning on Thu, 20 March 2008 07:01
		Re: Shapefile 'parts' woes By: Gaurav on Wed, 19 March 2008 23:38
		Re: Shapefile 'parts' woes By: David Fanning on Wed, 19 March 2008 05:33
		Re: Shapefile 'parts' woes By: cgpadwick on Thu, 27 March 2008 06:38
		Re: Shapefile 'parts' woes By: Gaurav on Fri, 28 March 2008 01:16

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