Ogre::DualQuaternion Class Reference

Implementation of a dual quaternion, i.e. More...

#include <OgreDualQuaternion.h>

Public Member Functions
	DualQuaternion ()
	Default constructor, initializes to identity rotation (aka 0°), and zero translation (0,0,0)
	DualQuaternion (const Matrix4 &rot)
	Construct a dual quaternion from a transformation matrix.
	DualQuaternion (const Quaternion &q, const Vector3 &trans)
	Construct a dual quaternion from a unit quaternion and a translation vector.
	DualQuaternion (Real *valptr)
	Construct a dual quaternion from 8 manual w/x/y/z/dw/dx/dy/dz values.
	DualQuaternion (Real fW, Real fX, Real fY, Real fZ, Real fdW, Real fdX, Real fdY, Real fdZ)
	Construct from an explicit list of values.
void	fromRotationTranslation (const Quaternion &q, const Vector3 &trans)
	Construct a dual quaternion from a rotation described by a Quaternion and a translation described by a Vector3.
void	fromTransformationMatrix (const Matrix4 &kTrans)
	Construct a dual quaternion from a 4x4 transformation matrix.
bool	isNaN () const
	Check whether this dual quaternion contains valid values.
bool	operator!= (const DualQuaternion &rhs) const
DualQuaternion &	operator= (const DualQuaternion &rkQ)
bool	operator== (const DualQuaternion &rhs) const
Real &	operator[] (const size_t i)
	Array accessor operator.
Real	operator[] (const size_t i) const
	Array accessor operator.
Real *	ptr ()
	Pointer accessor for direct copying.
const Real *	ptr () const
	Pointer accessor for direct copying.
void	swap (DualQuaternion &other)
	Exchange the contents of this dual quaternion with another.
void	toRotationTranslation (Quaternion &q, Vector3 &translation) const
	Convert a dual quaternion into its two components, a Quaternion representing the rotation and a Vector3 representing the translation.
void	toTransformationMatrix (Matrix4 &kTrans) const
	Convert a dual quaternion to a 4x4 transformation matrix.

Public Attributes
Real	dw
Real	dx
Real	dy
Real	dz
Real	w
Real	x
Real	y
Real	z

Friends
_OgreExport friend std::ostream &	operator<< (std::ostream &o, const DualQuaternion &q)
	Function for writing to a stream.

Detailed Description

Implementation of a dual quaternion, i.e.

a rotation around an axis and a translation. This implementation may note be appropriate as a general implementation, but is intended for use with dual quaternion skinning.

Constructor & Destructor Documentation

DualQuaternion() [1/5]

Ogre::DualQuaternion::DualQuaternion ( )

inline

Default constructor, initializes to identity rotation (aka 0°), and zero translation (0,0,0)

DualQuaternion() [2/5]

Ogre::DualQuaternion::DualQuaternion ( Real  fW, Real  fX, Real  fY, Real  fZ, Real  fdW, Real  fdX, Real  fdY, Real  fdZ  )

inline

Construct from an explicit list of values.

DualQuaternion() [3/5]

Ogre::DualQuaternion::DualQuaternion ( const Matrix4 &  rot )

inline

Construct a dual quaternion from a transformation matrix.

DualQuaternion() [4/5]

Ogre::DualQuaternion::DualQuaternion ( const Quaternion &  q, const Vector3 &  trans  )

inline

Construct a dual quaternion from a unit quaternion and a translation vector.

DualQuaternion() [5/5]

Ogre::DualQuaternion::DualQuaternion ( Real *  valptr )

inline

Construct a dual quaternion from 8 manual w/x/y/z/dw/dx/dy/dz values.

Member Function Documentation

fromRotationTranslation()

void Ogre::DualQuaternion::fromRotationTranslation	(	const Quaternion &	q,
		const Vector3 &	trans
	)

Construct a dual quaternion from a rotation described by a Quaternion and a translation described by a Vector3.

fromTransformationMatrix()

void Ogre::DualQuaternion::fromTransformationMatrix

(

const Matrix4 &

kTrans

)

Construct a dual quaternion from a 4x4 transformation matrix.

isNaN()

bool Ogre::DualQuaternion::isNaN ( ) const

inline

Check whether this dual quaternion contains valid values.

References Ogre::Math::isNaN().

operator!=()

bool Ogre::DualQuaternion::operator!= ( const DualQuaternion &  rhs ) const

inline

References Ogre::operator==().

operator=()

DualQuaternion & Ogre::DualQuaternion::operator= ( const DualQuaternion &  rkQ )

inline

operator==()

bool Ogre::DualQuaternion::operator== ( const DualQuaternion &  rhs ) const

inline

operator[]() [1/2]

Real & Ogre::DualQuaternion::operator[] ( const size_t  i )

inline

Array accessor operator.

operator[]() [2/2]

Real Ogre::DualQuaternion::operator[] ( const size_t  i ) const

inline

Array accessor operator.

ptr() [1/2]

Real * Ogre::DualQuaternion::ptr ( )

inline

Pointer accessor for direct copying.

ptr() [2/2]

const Real * Ogre::DualQuaternion::ptr ( ) const

inline

Pointer accessor for direct copying.

swap()

void Ogre::DualQuaternion::swap ( DualQuaternion &  other )

inline

Exchange the contents of this dual quaternion with another.

References dw, dx, dy, dz, std::swap(), w, x, y, and z.

toRotationTranslation()

void Ogre::DualQuaternion::toRotationTranslation	(	Quaternion &	q,
		Vector3 &	translation
	)		const

Convert a dual quaternion into its two components, a Quaternion representing the rotation and a Vector3 representing the translation.

toTransformationMatrix()

void Ogre::DualQuaternion::toTransformationMatrix

(

Matrix4 &

kTrans

)

const

Convert a dual quaternion to a 4x4 transformation matrix.

Friends And Related Symbol Documentation

operator<<

_OgreExport friend std::ostream & operator<< ( std::ostream &  o, const DualQuaternion &  q  )

friend

Function for writing to a stream.

Outputs "DualQuaternion(w, x, y, z, dw, dx, dy, dz)" with w, x, y, z, dw, dx, dy, dz being the member values of the dual quaternion.

Member Data Documentation

dw

Real Ogre::DualQuaternion::dw

Referenced by swap().

dx

Real Ogre::DualQuaternion::dx

Referenced by swap().

dy

Real Ogre::DualQuaternion::dy

Referenced by swap().

dz

Real Ogre::DualQuaternion::dz

Referenced by swap().

w

Real Ogre::DualQuaternion::w

Referenced by swap().

x

Real Ogre::DualQuaternion::x

Referenced by swap().

y

Real Ogre::DualQuaternion::y

Referenced by swap().

z

Real Ogre::DualQuaternion::z

Referenced by swap().

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The documentation for this class was generated from the following file:

• OgreDualQuaternion.h