pygeodesy :: datums :: Datum :: Class Datum

Class Datum

  object --+            
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named._Named --+        
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named._NamedBase --+    
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named._NamedEnumItem --+
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                      Datum

Ellipsoid and transform parameters for an earth model.

Instance Methods

__eq__(self, other)
Compare this and an other datum.

__hash__(self)
hash(x)

__init__(self, ellipsoid, transform=None, **name)
New Datum.

__matmul__(self, point)
Convert an ellipsoidal point to this datum.

ecef(self, Ecef=None)
Return ECEF converter.

toStr(self, sep=', ', **name)
Return this datum as a string.

Inherited from named._NamedEnumItem: unregister

Inherited from named._NamedBase: __repr__, __str__, others, toRepr

Inherited from named._Named: __format__, __imatmul__, __rmatmul__, attrs, classof, copy, dup, methodname, rename, renamed, toStr2

Inherited from object: __delattr__, __getattribute__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Properties
	ellipsoid
	exactTM
	isEllipsoidal
	isOblate
	isProlate
	isSpherical
	transform
Inherited from `named._NamedEnumItem`: `name` Inherited from `named._Named`: `classname`, `classnaming`, `iteration`, `named`, `named2`, `named3`, `named4`, `sizeof`, `typename` Inherited from `object`: `__class__`

Method Details

eq(self, other)
(Equality operator)

Compare this and an other datum.

Parameters:

other - The other datum (Datum).

Returns:

True if equal, False otherwise.

hash(self)
(Hashing function)

hash(x)

Overrides: object.__hash__: (inherited documentation)

init(self, ellipsoid, transform=None, **name)
(Constructor)

New Datum.

Parameters:

ellipsoid - The ellipsoid (Ellipsoid or Ellipsoid2).
transform - Optional transform (Transform).
name - Optional, unique name=NN (str).

Raises:

NameError - Datum with that name already exists.
TypeError - If ellipsoid is not an Ellipsoid nor Ellipsoid2 or transform is not a Transform.

Overrides: object.__init__

matmul(self, point)

Convert an ellipsoidal point to this datum.

Raises:

TypeError - Invalid point.

Overrides: named._Named.__matmul__

ecef(self, Ecef=None)

Return ECEF converter.

Parameters:

Ecef - ECEF class to use, default EcefKarney.

Returns:

An ECEF converter for this datum.

Raises:

TypeError - Invalid Ecef.

See Also: Module pygeodesy.ecef.

toStr(self, sep=', ', **name)

Return this datum as a string.

Parameters:

sep - Separator to join (str).
name - Optional, override name=NN (str) or None to exclude this datum's name.

Returns:

Datum attributes (str).

Overrides: named._Named.toStr

Property Details

ellipsoid

Get Method:: unreachable._fget(inst) - Get and cache/memoize the property value.
Set Method:: unreachable._fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: unreachable._fdel(inst) - Zap the cached/memoized property value.

exactTM

Get Method:: unreachable._fget(inst) - Get and cache/memoize the property value.
Set Method:: unreachable._fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: unreachable._fdel(inst) - Zap the cached/memoized property value.

isEllipsoidal

Get Method:: unreachable.isEllipsoidal(self) - Check whether this datum is ellipsoidal (bool).
Set Method:: unreachable._fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: unreachable._fdel(inst) - Zap the cached/memoized property value.

isOblate

Get Method:: unreachable.isOblate(self) - Check whether this datum's ellipsoidal is oblate (bool).
Set Method:: unreachable._fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: unreachable._fdel(inst) - Zap the cached/memoized property value.

isProlate

Get Method:: unreachable.isProlate(self) - Check whether this datum's ellipsoidal is prolate (bool).
Set Method:: unreachable._fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: unreachable._fdel(inst) - Zap the cached/memoized property value.

isSpherical

Get Method:: unreachable.isSpherical(self) - Check whether this datum is (near-)spherical (bool).
Set Method:: unreachable._fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: unreachable._fdel(inst) - Zap the cached/memoized property value.

transform

Get Method:: unreachable._fget(inst) - Get and cache/memoize the property value.
Set Method:: unreachable._fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: unreachable._fdel(inst) - Zap the cached/memoized property value.

Class Datum

__eq__(self, other) (Equality operator)

__hash__(self) (Hashing function)

__init__(self, ellipsoid, transform=None, **name) (Constructor)

__matmul__(self, point)

ecef(self, Ecef=None)

toStr(self, sep=', ', **name)

ellipsoid

exactTM

isEllipsoidal

isOblate

isProlate

isSpherical

transform

eq(self, other)
(Equality operator)

hash(self)
(Hashing function)

init(self, ellipsoid, transform=None, **name)
(Constructor)

matmul(self, point)