datum {swfscMisc}

Datum

Description

Return parameters specifying ellipsoid datum model.

Usage

datum(model = c("wgs84", "grs80", "airy", "international", "clarke", "grs67"))

Arguments

model

character, specifying which model to use for ellipsoid model. Options are: "wgs84", "grs80", "airy", "international", "clarke", "grs67", or partial matches thereof (case-sensitive).

Value

vector of a, b, and f parameters.

Note

Model parameters are based on distances in km.

Author(s)

Eric Archer [e-mail]