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From: "Gary Hughes" <gbhughes@calpoly.edu>
Newsgroups: comp.soft-sys.matlab
Subject: Re: Ellipse-ellipse intersection area
Date: Fri, 29 Jul 2011 16:44:13 +0000 (UTC)
Organization: California Polytechnic State University San Luis Obispo
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Hi Sebastien,
Well, the solution to the problem is tricky, as you note!  Probably the most common approach is to approximate the overlap area with polygons.  Recently, there is a post that finds the area using Gauss-Green formula, once the points of intersection of the two ellipses are known.  See http://works.bepress.com/gbhughes/17/, which also gives c-code.
--Gary Hughes

"Sébastien MAILFERT" wrote in message <j09fvh\$p2f\$1@newscl01ah.mathworks.com>...
> Hi,
>
> I'm trying to find a solution to calculate the intersection area between two ellipse with different areas and rotated between them.
>
> The solution of this probelm is a little bit tricky or I'm really not good in Mathematics...!
>