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  3. GivensRotation

GivensRotation

Class for givens rotation.

API > API/Runtime > API/Runtime/ChaosCore

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

   
Name GivensRotation
Type class
Header File /Engine/Source/Runtime/Experimental/ChaosCore/Public/Chaos/ImplicitQRSVD.h
Include Path #include "Chaos/ImplicitQRSVD.h"

Syntax

template<class T>  
class GivensRotation

Constructors

Name Remarks Include Path Unreal Specifiers
  Chaos/ImplicitQRSVD.h  

GivensRotation ( int rowi_in,
int rowk_in
)

   Chaos/ImplicitQRSVD.h  

GivensRotation ( T a,
T b,
int rowi_in,
int rowk_in
)

   Chaos/ImplicitQRSVD.h  

Destructors

Name Remarks Include Path Unreal Specifiers

~GivensRotation()

   Chaos/ImplicitQRSVD.h  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
c T   Chaos/ImplicitQRSVD.h  
rowi int   Chaos/ImplicitQRSVD.h  
rowk int   Chaos/ImplicitQRSVD.h  
s T   Chaos/ImplicitQRSVD.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

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

 Template Chaos/ImplicitQRSVD.h  

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

 Template Chaos/ImplicitQRSVD.h  

void Compute ( const T a,
const T b
)

 Compute c and s from a and b so that ( c -s ) ( a ) = ( * ) s c b ( 0 ) Chaos/ImplicitQRSVD.h  

void ComputeUnconventional ( const T a,
const T b
)

 This function Computes c and s so that ( c -s ) ( a ) = ( 0 ) s c b ( * ) Chaos/ImplicitQRSVD.h  

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

 Template Chaos/ImplicitQRSVD.h  

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

 Template Chaos/ImplicitQRSVD.h  

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

 Template Chaos/ImplicitQRSVD.h  

void TransposeInPlace()

   Chaos/ImplicitQRSVD.h  

Operators

Name Remarks Include Path Unreal Specifiers

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

 Multiply givens must be for same row and column Chaos/ImplicitQRSVD.h  

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

 Multiply givens must be for same row and column Chaos/ImplicitQRSVD.h  

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