nvector._core.select_ellipsoid

nvector._core.select_ellipsoid(name)

Return semi-major axis (a), flattening (f) and name of ellipsoid

Parameters:

name : string

name of ellipsoid. Valid options are: ‘airy1858’, ‘airymodified’, ‘australiannational’, ‘everest1830’, ‘everestmodified’, ‘krassovsky’, ‘krassovsky1938’, ‘fisher1968’, ‘fisher1960’, ‘international’, ‘hayford’, ‘clarke1866’, ‘nad27’, ‘bessel’, ‘bessel1841’, ‘grs80’, ‘wgs84’, ‘nad83’, ‘sovietgeod.system1985’, ‘wgs72’, ‘hough1956’, ‘hough’, ‘nwl-9d’, ‘wgs66’, ‘southamerican1969’, ‘clarke1880’.

Examples

>>> import nvector as nv
>>> nv.select_ellipsoid(name='wgs84')
(6378137.0, 0.0033528106647474805, 'GRS80 / WGS84  (NAD83)')