powered by
It calculates a rotation matrix from a rotation axis and angle of rotation.
rot.matrix(ksi, theta, rads = FALSE)
A 3 x 3 rotation matrix.
The rotation axis, a vector with two elements, the first is the latitude and the second is the longitude.
The angle of rotation.
If both the ksi and theta are in rads, this should be TRUE. If both the ksi and theta are in degrees, this should be FALSE.
Michail Tsagris.
R implementation and documentation: Michail Tsagris mtsagris@uoc.gr and Giorgos Athineou <gioathineou@gmail.com>.
The function accepts as arguments the rotation axis and the angle of rotation and it calcualtes the requested rotation matrix.
Course webpage of Howard E. Haber. http://scipp.ucsc.edu/~haber/ph216/rotation_12.pdf
Ted Chang (1986). Spherical Regression. Annals of Statistics, 14(3): 907--924.
Arotation, rotation, rsop
ksi <- c(25.31, 24.29) theta <- 2.38 A <- rot.matrix(ksi, theta, rads = FALSE) A Arotation(A)
Run the code above in your browser using DataLab