Chaos::GivensRotation< T > Class Template Reference

#include <ImplicitQRSVD.h>

Public Member Functions
	GivensRotation ()
	GivensRotation (int rowi_in, int rowk_in)
	GivensRotation (T a, T b, int rowi_in, int rowk_in)
	~GivensRotation ()
void	TransposeInPlace ()
void	Compute (const T a, const T b)
void	ComputeUnconventional (const T a, const T b)
void	Fill (const PMatrix< T, 2, 2 > &R) const
void	RowRotation (PMatrix< T, 2, 2 > &A) const
void	RowRotation (PMatrix< T, 3, 3 > &A) const
void	ColumnRotation (PMatrix< T, 2, 2 > &A) const
void	ColumnRotation (PMatrix< T, 3, 3 > &A) const
void	operator*= (const GivensRotation< T > &A)
GivensRotation< T >	operator* (const GivensRotation< T > &A) const

Public Attributes
int	rowi
int	rowk
T	c
T	s

Detailed Description

template<class T>
class Chaos::GivensRotation< T >

Class for givens rotation. Row rotation G*A corresponds to something like c -s 0 ( s c 0 ) A 0 0 1 Column rotation A G' corresponds to something like c -s 0 A ( s c 0 ) 0 0 1

c and s are always Computed so that ( c -s ) ( a ) = ( * ) s c b ( 0 )

Assume rowi<rowk.

Constructor & Destructor Documentation

GivensRotation() [1/3]

template<class T >

Chaos::GivensRotation< T >::GivensRotation ( )

inline

GivensRotation() [2/3]

template<class T >

Chaos::GivensRotation< T >::GivensRotation ( int  rowi_in, int  rowk_in  )

inline

GivensRotation() [3/3]

template<class T >

Chaos::GivensRotation< T >::GivensRotation ( T  a, T  b, int  rowi_in, int  rowk_in  )

inline

~GivensRotation()

template<class T >

Chaos::GivensRotation< T >::~GivensRotation ( )

inline

Member Function Documentation

ColumnRotation() [1/2]

template<class T >

void Chaos::GivensRotation< T >::ColumnRotation ( PMatrix< T, 2, 2 > &  A ) const

inline

This function does something like c s 0 A ( -s c 0 ) -> A 0 0 1 It only affects column i and column k of A.

ColumnRotation() [2/2]

template<class T >

void Chaos::GivensRotation< T >::ColumnRotation ( PMatrix< T, 3, 3 > &  A ) const

inline

Compute()

template<class T >

void Chaos::GivensRotation< T >::Compute ( const T  a, const T  b  )

inline

Compute c and s from a and b so that ( c -s ) ( a ) = ( * ) s c b ( 0 )

ComputeUnconventional()

template<class T >

void Chaos::GivensRotation< T >::ComputeUnconventional ( const T  a, const T  b  )

inline

This function Computes c and s so that ( c -s ) ( a ) = ( 0 ) s c b ( * )

Fill()

template<class T >

void Chaos::GivensRotation< T >::Fill ( const PMatrix< T, 2, 2 > &  R ) const

inline

Fill the R with the entries of this rotation

operator*()

template<class T >

GivensRotation< T > Chaos::GivensRotation< T >::operator* ( const GivensRotation< T > &  A ) const

inline

Multiply givens must be for same row and column

operator*=()

template<class T >

void Chaos::GivensRotation< T >::operator*= ( const GivensRotation< T > &  A )

inline

Multiply givens must be for same row and column

RowRotation() [1/2]

template<class T >

void Chaos::GivensRotation< T >::RowRotation ( PMatrix< T, 2, 2 > &  A ) const

inline

This function does something like c -s 0 ( s c 0 ) A -> A 0 0 1 It only affects row i and row k of A.

RowRotation() [2/2]

template<class T >

void Chaos::GivensRotation< T >::RowRotation ( PMatrix< T, 3, 3 > &  A ) const

inline

TransposeInPlace()

template<class T >

void Chaos::GivensRotation< T >::TransposeInPlace ( )

inline

Member Data Documentation

c

template<class T >

T Chaos::GivensRotation< T >::c

rowi

template<class T >

int Chaos::GivensRotation< T >::rowi

rowk

template<class T >

int Chaos::GivensRotation< T >::rowk

s

template<class T >

T Chaos::GivensRotation< T >::s

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

• Engine/Source/Runtime/Experimental/ChaosCore/Public/Chaos/ImplicitQRSVD.h