Check validity of iput ellipsoids / spheroids.
Inputs:
- spheroid: input ellipsoid or spheroid. Can be an ellipsoid or
spheroid name, or ditto code (character string or scalar numeric value), or
a numeric 2-element vector containing SemimajorAxis and Eccentricity
values, or an ellipsoid / spheroid struct. If omitted a WGS84 ellipsoid
struct is returned.
- req_fields: cellstr array of required fields of input ellipsoid /
spheroid struct; only used/useful when an ellipsoid / spheroid struct
value is given. The default required fields are "SemimajorAxis",
"Flattening" and "LengthUnit".
Note: the validity of the fields input this way isn’t checked!
Output:
Ellipsoid / spheroid struct.
See also: .