Ptolemy

Calculate and display Ptolemaic ellipses which illustrates
intuitively the principle behing elliptical Fourier analysis.

The goal of 'Momocs' is to provide a complete, convenient,
reproducible and open-source toolkit for 2D morphometrics.
It includes most common 2D morphometrics approaches on outlines, open outlines,
configurations of landmarks, traditional morphometrics, and facilities for data preparation,
manipulation and visualization with a consistent grammar throughout.
It allows reproducible, complex morphometrics analyses and other morphometrics approaches
should be easy to plug in, or develop from, on top of this canvas.

Vincent Bonhomme

Momocs

Morphometrics using R

Julien Claude

Ptolemy function

<dl><dt>coo</dt>
<dd>a matrix of (x; y) coordinates</dd>
<dt>t</dt>
<dd>A <code>vector</code> af angles (in radians) on which to display ellipses</dd>
<dt>nb.h</dt>
<dd><code>integer</code>. The number of harmonics to display</dd>
<dt>nb.pts</dt>
<dd><code>integer</code>. The number of points to use to display shapes</dd>
<dt>palette</dt>
<dd>a color palette</dd>
<dt>zoom</dt>
<dd>numeric a zoom factor for coo_plot</dd>
<dt>legend</dt>
<dd><code>logical</code>. Whether to plot the legend box</dd>
<dt>...</dt>
<dd>additional parameters to feed coo_plot</dd></dl>

Arguments

Ptolemaic ellipses and illustration of efourier — Ptolemy

<dl>

<dt>coo</dt>
<dd>a matrix of (x; y) coordinates</dd>


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


<dt>nb.h</dt>
<dd><code>integer</code>. The number of harmonics to display</dd>


<dt>nb.pts</dt>
<dd><code>integer</code>. The number of points to use to display shapes</dd>


<dt>palette</dt>
<dd>a color palette</dd>


<dt>zoom</dt>
<dd>numeric a zoom factor for coo_plot</dd>


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


<dt>...</dt>
<dd>additional parameters to feed coo_plot</dd>

</dl>

Ptolemy: Ptolemaic ellipses and illustration of efourier

Description

Usage

Value

Arguments

References

See Also

Examples