refEllipsoids: Reference ellipsoids

Description Usage Value Note Author(s) See Also Examples

View source: R/refEllipsoids.R

Description

This function returns a data.frame with parameters a (semi-major axis) and 1/f (inverse flattening) for a set of reference ellipsoids.

Usage

1

Value

data.frame

Note

To compute parameter b you can do

Author(s)

Robert J. Hijmans

See Also

area, perimeter

Examples

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e <- refEllipsoids()
e[e$code=='WE', ]

#to compute semi-minor axis b:
e$b <- e$a - e$a / e$invf

geosphere documentation built on July 21, 2018, 3 p.m.