Parameters for ellipsoid-function.
Function name.
Ellipsoid major semiaxis size and inverse of flattening.
Some commonly used ellipsoids:
Bessel (RT90, Sweden) - a: 6377397.155, 1/f: 299.1528128
WGS84 - a: 6378137.000, 1/f: 298.257223563
GRS80 (UTM, GKn, EUREF) - a: 6378137.000, 1/f: 298.257222101
Hayford (KKJ, Finland) - a: 6378388.000, 1/f: 297.0
Definitions common for all functions.