rfourier_i uses the inverse radii variation (equally spaced radii) transformation to
calculate a shape, when given a list with Fourier coefficients, typically
obtained computed with rfourier.
Usage
rfourier_i(rf, nb.h, nb.pts = 120)
Value
A list with components:
x
vector of
x-coordinates.
y
vector of y-coordinates.
angle
vector of angles used.
r
vector of radii
calculated.
Arguments
rf
A list with ao, an and bn components,
typically as returned by rfourier.
nb.h
integer. The number of harmonics to calculate/use.
nb.pts
integer. The number of points to calculate.
Details
See the JSS paper for the maths behind.
References
Claude, J. (2008) Morphometrics with R, Use R! series,
Springer 316 pp.