A method for Coo object to displays Ptolemaic ellipses which illustrates intuitively the principle behing elliptical Fourier analysis.
Arguments
References
This method has been inspired by the figures found in the followings papers.
Kuhl FP, Giardina CR. 1982. Elliptic Fourier features of a closed contour. Computer Graphics and Image Processing18: 236-258.
Crampton JS. 1995. Elliptical Fourier shape analysis of fossil bivalves: some practical considerations. Lethaia28: 179-186.
See Also
An intuitive explanation of elliptic Fourier analysis can be found in the Details section of the efourier function.