Transforms or back-transforms a set of coordinates according to the geometric anisotropy parameters.
GeoAniso(coords, anisopars=c(0,1), inverse = FALSE)Returns a matrix of transformed coordinates
An n x 2 matrix with the coordinates to be transformed.
A bivariate vector with the the anisotropy angle and the anisotropy ratio, respectively. The angle must be given in radians in [0,pi] and the anisotropy ratio must be greater or equal than 1.
Logical: Default to FALSE. If TRUE the reverse transformation is performed.
Moreno Bevilacqua, moreno.bevilacqua89@gmail.com,https://sites.google.com/view/moreno-bevilacqua/home, Víctor Morales Oñate, victor.morales@uv.cl, https://sites.google.com/site/moralesonatevictor/, Christian", Caamaño-Carrillo, chcaaman@ubiobio.cl,https://www.researchgate.net/profile/Christian-Caamano
Geometric anisotropy is defined by a linear tranformation from the anisotropic space to the isotropic space that is $$Y = X R S$$ where X is a matrix with original coordinates (anisotropic space), and Y is a matrix with transformed coordinates (isotropic space). Here R is a rotation matrix with associated anisotropy angle parameter (in \([0,pi]\)) and a \(S\) is a shrinking matrix with associated anisotropy ratio parameter (greeater or equal than one). The two parameters are specified in the anisopars argument as a bivariate numeric vector. The case \((.,1)\) corresponds to the isotropic case.