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MathGroup Archive 2000

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Re: computational geometry

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22232] Re: computational geometry
  • From: joegwinn at mediaone.net (Joe Gwinn)
  • Date: Fri, 18 Feb 2000 02:35:20 -0500 (EST)
  • Organization: Gwinn Instruments
  • References: <88dn2m$t3@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Try looking in Graphics Gems, a series of algorithm books currently
numbering five or more.  I recall such an algorithm and many others there.

Joe Gwinn

In article <88dn2m$t3 at smc.vnet.net>, "CAJ" <kinky at chesapeake.net> wrote:

> I need a way to determine the intersection of polygons in a plane.
> 
> In particular, I am representing data as a complex hull surrounding 2
> dimensional points in the xy plane.
> Multiple polygons representing different experiments are represented in the
> same plane.
> 
> I need to determine if there exists a polygon which is isolated from all
> other polygons in the plane and is located in the upper right quadrant of
> the plane.
> 
> This particular polygon would represent the best of the best  in the series.
> It has no intersections with any other polygons and is located in the upper
> right quadrant.
> 
> I have had serveral ideas on how to do this, but none are clean and elegant.
> Anyone have any good ideas?
> 
> Thanks,
> 
> Charles A. Judge MD


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