Parameterization

Question

Melissa 2011-7-15

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Good Morning All, I was wondering if there was a way to parameterize the boundary of a shape given x and y cartesian coordinates?

I was thinking of using the matlab interpft function to get x(t) and y(t) not just xt and yt so I can use it when finding the fourier transforms coefficients. Any suggestion are very much appreciated.

Thanks Mel

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Andrew Newell 2011-7-17

This is a duplicate of an earlier question (http://www.mathworks.com/matlabcentral/answers/11552-fourier-transform-of-2d).

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Answer 1

the cyclist 2011-7-15

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You might be interested in the convhull() function.

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Answer 2

Sean de Wolski 2011-7-15

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Maybe: FEX:vert2lcon_lcon2vert and the original vert2con and con2vert referenced in that link.

The shape must be convex.

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Melissa 2011-7-15

thank you, the shape is distorted representation of a circle so convex is applied. and this will give me an x(t) and y(t) to apply to my fourier transform?

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