Ptolemy

Ptolemy-methods

Ptolemy,Coo-method

The <code>Coo</code> object on which to display Ptolemaic ellipses.

The <code>id</code> on which to display Ptolemaic ellipses.

A <code>vector</code> af angles (in radians) on which to display ellipses.

<code>integer</code>. The number of harmonics to display.

nb.h

<code>integer</code>. The number of points to use to display shapes.

nb.pts

palette

<code>logical</code>. Whether to plot the legend box.

legend

<code>Ptolemy</code> is a method for <code>Coo</code> objects to calculate and display Ptolemaic ellipses which illustrates intuitively the principle behing elliptical Fourier analysis.

elliptical Fourier analysis

Momocs is intended to ease and popularize shape analysis
        of outlines (especially using elliptical Fourier analysis). It
        mostly hinges on the functions developed in Morphometrics with
        R (Claude, 2008). From outline extraction of images and
        elliptical Fourier calculation to multivariate analysis and the
        visualization of transformations within the morphological
        space, Momocs provides a complete and convenient toolkit to
        specialists within every field that are, or may be, interested
        in morphological comparisons of outlines.

Ptolemy: Ptolemaic ellipses and illustration of eFourier

Description

Usage

Arguments

References

See Also

Examples