Ellipsoidal, geocentric-cartesian and grid coordinates are converted into each other. Topocentric-cartesian coordinates are computed with the first point of the list as topocentre.Cartesian and ellipsoidal coordinate systems
X,Y,Z
geocentric cartesian system, righthanded
φ,λ,h
ellipsoidal system
N,E,h
grid system, lefthanded (not displayed)
x,y,z
topocentric cartesian system, lefthanded (not as a start system,
only for ≥ 2 points), topocentre = 1st point of list
Did you know?
The tools for ellipsoids of revolution also operate on the sphere.