Package esys :: Package lsm :: Package util :: Module FoundationPy :: Class Quaternion

Class Quaternion

 object --+    
          |    
??.instance --+
              |
             Quaternion

A quaternion.

Instance Methods

[hide private]

__eq__(...)

__getinitargs__(...)

__getitem__(...)

__init__(...)
Constructs quaternion with specifed component values.

__len__(...)

__reduce__(...)
helper for pickle

__setitem__(...)

__str__(...)
str(x)

Vec3

asAngleAxis(...)
Returns angle and axis rotation representation, where angle is the magnitude of the returned Vec3 object.

(float, Vec3)

asAngleAxisPair(...)
Returns angle and axis rotation representation as a two element tuple, the first element is the angle and the second element is the Vec3 axis.

normalise(...)
Normalises this quaternion.

normalize(...)
Normalizes this quaternion.

list of four floats

toList(...)
Returns a python list of 4 elements.

tuple of four floats

toTuple(...)
Returns a python tuple of 4 elements.

Inherited from unreachable.instance: __new__

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __subclasshook__

Class Variables

[hide private]

__instance_size__ = 40

__safe_for_unpickling__ = True

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(...)
(Constructor)

Constructs quaternion with specifed component values.

Parameters:

q0 (float) - Scalar part, index 0.
q1 (float) - index 1
q2 (float) - index 2
q3 (float) - index 3

Overrides: object.__init__

reduce(...)

helper for pickle

Overrides: object.__reduce__: (inherited documentation)

str(...)
(Informal representation operator)

str(x)

Overrides: object.__str__: (inherited documentation)

asAngleAxis(...)

Returns angle and axis rotation representation, where angle is the magnitude of the returned Vec3 object.

Returns: Vec3: angle and axis rotation representation.

asAngleAxisPair(...)

Returns angle and axis rotation representation as a two element tuple, the first element is the angle and the second element is the Vec3 axis.

Returns: (float, Vec3): angle and axis rotation tuple-pair.

toList(...)

Returns a python list of 4 elements.

Returns: list of four floats: [self[0],self[1],self[2],self[3]]

toTuple(...)

Returns a python tuple of 4 elements.

Returns: tuple of four floats: (self[0],self[1],self[2],self[3])

Class Quaternion

__init__(...) (Constructor)

__reduce__(...)

__str__(...) (Informal representation operator)

asAngleAxis(...)

asAngleAxisPair(...)

toList(...)

toTuple(...)

init(...)
(Constructor)

reduce(...)

str(...)
(Informal representation operator)