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Re: Calculating the area of a closed 3-D path or ring
Posted:
Mar 17, 2013 7:33 PM
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Ray Koopman wrote:
> This set of data seems quite well conditioned. All the projections
> into the best-fit planes give convex polygons, with their vertices
> in the order given. The areas of the polygons range from 699 to 933.
> A plot of the areas as a function of time makes it obvious that the
> 264 points cover 3 beats of the heart. This can also be seen if you
> view the polygons successively, as a movie.
How do the polygon area plots compare with the more simple area method
(sum of triangles using computed centroid) ?
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