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Re: Find all points within a set of polygons [message #46639 is a reply to message #46638]

Wed, 30 November 2005 07:23

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Maarten writes:

> The single point version of the poly-tester, returns true if the point
> [pnt_x,pnt_y] lies within the polygon described by the (x,y) pairs in
> poly_x and poly_y:

You might want to try my INSIDE program. Just glancing at the
code, it looks a LOT faster than yours. :-)

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

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Re: Find all points within a set of polygons By: JD Smith on Wed, 30 November 2005 12:45
		Re: Find all points within a set of polygons By: Maarten[1] on Wed, 30 November 2005 08:03
		Re: Find all points within a set of polygons By: David Fanning on Wed, 30 November 2005 07:51
		Re: Find all points within a set of polygons By: Maarten[1] on Wed, 30 November 2005 07:43
		Re: Find all points within a set of polygons By: David Fanning on Wed, 30 November 2005 07:23
		Re: Find all points within a set of polygons By: Maarten[1] on Thu, 08 December 2005 07:53

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