bary.to.sphere.cart: Convert barycentric coordinates of points in mesh on sphere...

In retistruct: Retinal Reconstruction Program

Convert barycentric coordinates of points in mesh on sphere to cartesian coordinates

Description

Given a triangular mesh on a sphere described by mesh locations (phi, lambda), a radius R and a triangulation Trt, determine the Cartesian coordinates of points cb given in barycentric coordinates with respect to the mesh.

Usage

bary.to.sphere.cart(phi, lambda, R, Trt, cb)

Arguments

phi	Latitudes of mesh points
lambda	Longitudes of mesh points
R	Radius of sphere
Trt	Triangulation
cb	Object returned by tsearch containing information on the triangle in which a point occurs and the barycentric coordinates within that triangle

Value

An N-by-3 matrix of the Cartesian coordinates of the points

Author(s)

David Sterratt

retistruct documentation built on April 3, 2025, 5:58 p.m.