Package pygeodesy :: Package deprecated :: Module datum
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Module datum

DEPRECATED, use module datums or ellipsoids instead.


Version: 21.12.29

Classes
  Ellipsoid
Ellipsoid with equatorial and polar radii, flattening, inverse flattening and other, often used, cached attributes, supporting oblate and prolate ellipsoidal and spherical earth models.
  Curvature2Tuple
2-Tuple (meridional, prime_vertical) of radii of curvature, both in meter, conventionally.
  Datum
Ellipsoid and transform parameters for an earth model.
  Transform
Helmert transformation.
Variables
  R_M = 6371008.771415
  R_MA = 6378137.0
  R_MB = 6356752.3
  R_KM = 6371.008771415
  R_NM = 3440.06953100162
  R_SM = 3958.7613160486508
  R_FM = 6371000.0
  R_VM = 6366707.0194937
  Ellipsoids = Ellipsoids.Airy1830: Ellipsoid(name='Airy1830', a...
  Datums = Datums.OSGB36: Datum(name='OSGB36', ellipsoid=Ellipso...
  Transforms = Transforms.OSGB36: Transform(name='OSGB36', tx=-4...
Variables Details

Ellipsoids

Value:
Ellipsoids.Airy1830: Ellipsoid(name='Airy1830', a=6377563.396, b=63562\
56.90923729, f_=299.3249646, f=0.00334085, f2=0.00335205, n=0.00167322\
, e=0.08167337, e2=0.00667054, e22=0.00671533, e32=0.00334643, A=63669\
14.60892522, L=10001126.0807165, R1=6370461.23374576, R2=6370459.65470\
808, R3=6370453.30994572, Rbiaxial=6366919.065224, Rtriaxial=6372243.4\
5317691),
Ellipsoids.Sphere: Ellipsoid(name='Sphere', a=6371008.771415, b=637100\
8.771415, f_=0, f=0, f2=0, n=0, e=0, e2=0, e22=0, e32=0, A=6371008.771\
...

Datums

Value:
Datums.OSGB36: Datum(name='OSGB36', ellipsoid=Ellipsoids.Airy1830, tra\
nsform=Transforms.OSGB36),
Datums.Sphere: Datum(name='Sphere', ellipsoid=Ellipsoids.Sphere, trans\
form=Transforms.WGS84),
Datums.WGS84: Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transfor\
m=Transforms.WGS84)

Transforms

Value:
Transforms.OSGB36: Transform(name='OSGB36', tx=-446.448, ty=125.157, t\
z=-542.06, rx=-0, ry=-0, rz=-0, s=20.4894, s1=1.00002, sx=-0.1502, sy=\
-0.247, sz=-0.8421),
Transforms.WGS84: Transform(name='WGS84', tx=0, ty=0, tz=0, rx=0, ry=0\
, rz=0, s=0, s1=1, sx=0, sy=0, sz=0)