sphere.cart.to.sphere.wedge: Convert from Cartesian to 'wedge' coordinates

Description Usage Arguments Value Author(s)

View source: R/geometry.R

Description

Convert points in 3D cartesian space to locations of points on sphere in 'wedge' coordinates (psi, f). Wedges are defined by planes inclined at an angle psi running through a line between poles on the rim above the x axis. f is the fractional distance along the circle defined by the intersection of this plane and the curtailed sphere.

Usage

1

Arguments

P

locations of points on sphere as N-by-3 matrix with labelled columns "X", "Y" and "Z"

phi0

rim angle as colatitude

R

radius of sphere

Value

2-column Matrix of 'wedge' coordinates of points on sphere. Column names are phi and lambda.

Author(s)

David Sterratt


retistruct documentation built on April 4, 2020, 5:08 p.m.