The function that computes the energy (or error) of the
deformation of the mesh from the flat outline to the sphere. This
depends on the locations of the points given in spherical
coordinates. The function is designed to take these as a vector
that is received from the optim
function.
Ecart(P, Cu, L, T, A, R, alpha = 1, x0, nu = 1, verbose = FALSE)
N-by-3 matrix of point coordinates
The upper part of the connectivity matrix
Length of each edge in the flattened outline
Triangulation in the flattened outline
Area of each triangle in the flattened outline
Radius of sphere
Area penalty scaling coefficient
Area penalty cut-off coefficient
Power to which to raise area
How much information to report
A single value, representing the energy of this particular configuration