This is the inverse of polar.cart.to.sphere.spherical
sphere.spherical.to.polar.cart(r, pa = FALSE, preserve = "latitude")2-column Matrix of spherical coordinates of points on
sphere. Column names are phi and lambda.
If TRUE, make this an area-preserving projection
Quantity to preserve locally in the
projection. Options are latitude, area or
angle
2-column Matrix of Cartesian coordinates of points on polar
projection. Column names should be x and y