GivensRotation | Unreal Engine 5.3 Documentation

API > API/Runtime > API/Runtime/ChaosCore > API/Runtime/ChaosCore/Chaos

References


Module	ChaosCore
Header	/Engine/Source/Runtime/Experimental/ChaosCore/Public/Chaos/ImplicitQRSVD.h
Include	#include "Chaos/ImplicitQRSVD.h"

Syntax

template<class T>  
class GivensRotation

Remarks

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

Variables

	Type	Name	Description
	T	c
	int	rowi
	int	rowk
	T	s

Constructors

	Type	Name	Description
		GivensRotation ()
		GivensRotation ( int rowi_in, int rowk_in )
		GivensRotation ( T a, T b, int rowi_in, int rowk_in )

Destructors

	Type	Name	Description
		~GivensRotation ()

Functions

Type	Name	Description
void	ColumnRotation ( PMatrix< T, 2, 2 >& A )	Template ="">
void	ColumnRotation ( PMatrix< T, 3, 3 >& A )	Template ="">
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 )
void	ComputeUnconventional ( const T a, const T b )	This function Computes c and s so that ( c -s ) ( a ) = ( 0 ) s c b ( * )
void	Fill ( const PMatrix< T, 2, 2 >& R )	Template ="">
void	RowRotation ( PMatrix< T, 2, 2 >& A )	Template ="">
void	RowRotation ( PMatrix< T, 3, 3 >& A )	Template ="">
void	TransposeInPlace ()

Operators

	Type	Name	Description
	GivensRotation< T >	operator* ( const GivensRotation< T >& A )	Multiply givens must be for same row and column
	void	operator*= ( const GivensRotation< T >& A )	Multiply givens must be for same row and column

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