Description
Return parameters specifying ellipsoid datum model.
Usage
datum(model = c("wgs84", "grs80", "airy", "international", "clarke", "grs67"))
Value
vector of a, b, and f parameters.
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).