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

DEPRECATED, use module datums or ellipsoids instead.


Version: 20.09.27

Classes
  Ellipsoid
Ellipsoid with equatorial and polar radius, flattening, inverse flattening and other, often used, cached attributes, supporting spherical and oblate and prolate ellipsoidal 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 = 6356752.0
  R_KM = 6371.008771415
  R_NM = 3440.06953446921
  R_SM = 3958.753395372691
  R_FM = 6371000.0
  R_VM = 6366707.0194937
  Ellipsoids = Ellipsoids.Airy1830: Ellipsoid(name='Airy1830', a...
  Datums = Datums.BD72: Datum(name='BD72', ellipsoid=Ellipsoids....
  Transforms = Transforms.BD72: Transform(name='BD72', tx=106.86...
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, L=10001\
126.0807165, R1=6370461.23374576, R2=6370459.65470808, R3=6370453.3099\
4572),
Ellipsoids.AiryModified: Ellipsoid(name='AiryModified', a=6377340.189,\
 b=6356034.44793853, f_=299.3249646, f=0.00334085, f2=0.00335205, n=0.\
00167322, e=0.08167337, e2=0.00667054, e22=0.00671533, e32=0.00334643,\
...

Datums

Value:
Datums.BD72: Datum(name='BD72', ellipsoid=Ellipsoids.Intl1924, transfo\
rm=Transforms.BD72),
Datums.DHDN: Datum(name='DHDN', ellipsoid=Ellipsoids.Bessel1841, trans\
form=Transforms.DHDN),
Datums.ED50: Datum(name='ED50', ellipsoid=Ellipsoids.Intl1924, transfo\
rm=Transforms.ED50),
Datums.GDA2020: Datum(name='GDA2020', ellipsoid=Ellipsoids.GRS80, tran\
sform=Transforms.WGS84),
...

Transforms

Value:
Transforms.BD72: Transform(name='BD72', tx=106.86863, ty=-52.29778, tz\
=103.72389, rx=-0, ry=-0, rz=-0.00001, s=1.2727, s1=1, sx=-0.33657, sy\
=-0.45696, sz=-1.84218),
Transforms.Bessel1841: Transform(name='Bessel1841', tx=-582, ty=-105, \
tz=-414, rx=-0.00001, ry=-0, rz=0.00001, s=-8.3, s1=0.99999, sx=-1.04,\
 sy=-0.35, sz=3.08),
Transforms.Clarke1866: Transform(name='Clarke1866', tx=8, ty=-160, tz=\
-176, rx=0, ry=0, rz=0, s=0, s1=1, sx=0, sy=0, sz=0),
...