TShear2< T > Class Template Reference

#include <TransformCalculus2D.h>

Public Types
using	FReal = T
using	Vector2Type = UE::Math::TVector2< T >

Public Member Functions
	TShear2 ()
	TShear2 (T ShearX, T ShearY)
template<typename VType >
	TShear2 (const UE::Math::TVector2< VType > &InShear)
template<typename ArgType >
UE::Math::TVector2< ArgType >	TransformPoint (const UE::Math::TVector2< ArgType > &Point) const
template<typename ArgType >
UE::Math::TVector2< ArgType >	TransformVector (const UE::Math::TVector2< ArgType > &Vector) const
TMatrix2x2< T >	Concatenate (const TShear2 &RHS) const
TMatrix2x2< T >	Inverse () const
bool	operator== (const TShear2 &Other) const
bool	operator!= (const TShear2 &Other) const
const Vector2Type &	GetVector () const

Static Public Member Functions
template<typename VType >
static TShear2	FromShearAngles (const UE::Math::TVector2< VType > &InShearAngles)

Detailed Description

template<typename T>
class TShear2< T >

Represents a 2D shear: [1 YY] [XX 1] XX represents a shear parallel to the X axis. YY represents a shear parallel to the Y axis.

Member Typedef Documentation

FReal

template<typename T >

using TShear2< T >::FReal = T

Vector2Type

template<typename T >

using TShear2< T >::Vector2Type = UE::Math::TVector2<T>

Constructor & Destructor Documentation

TShear2() [1/3]

template<typename T >

TShear2< T >::TShear2 ( )

inline

Ctor. initialize to an identity.

TShear2() [2/3]

template<typename T >

TShear2< T >::TShear2 ( T  ShearX, T  ShearY  )

inlineexplicit

Ctor. initialize from a set of shears parallel to the X and Y axis, respectively.

TShear2() [3/3]

template<typename T >

template<typename VType >

TShear2< T >::TShear2 ( const UE::Math::TVector2< VType > &  InShear )

inlineexplicit

Ctor. initialize from a 2D vector representing a set of shears parallel to the X and Y axis, respectively.

Member Function Documentation

Concatenate()

template<typename T >

TMatrix2x2< T > TShear2< T >::Concatenate ( const TShear2< T > &  RHS ) const

inline

Concatenate two shears. The result is NOT a shear, but must be represented by a generalized 2x2 transform. Defer the implementation until we can declare a 2x2 matrix. [1 YYA] * [1 YYB] == [1+YYA*XXB YYB*YYA] [XXA 1] [XXB 1] [XXA+XXB XXA*XXB+1]

FromShearAngles()

template<typename T >

template<typename VType >

static TShear2 TShear2< T >::FromShearAngles ( const UE::Math::TVector2< VType > &  InShearAngles )

inlinestatic

Generates a shear structure based on angles instead of slope.

Parameters

InShearAngles

The angles of shear.

Returns

the sheare structure.

GetVector()

template<typename T >

const Vector2Type & TShear2< T >::GetVector ( ) const

inline

Access to the underlying FVector2D that stores the scale.

Inverse()

template<typename T >

TMatrix2x2< T > TShear2< T >::Inverse ( ) const

inline

Invert the shear. The result is NOT a shear, but must be represented by a generalized 2x2 transform. Defer the implementation until we can declare a 2x2 matrix. [1 YY]^-1 == 1/(1-YY*XX) * [1 -YY] [XX 1] [-XX 1]

operator!=()

template<typename T >

bool TShear2< T >::operator!= ( const TShear2< T > &  Other ) const

inline

Inequality.

operator==()

template<typename T >

bool TShear2< T >::operator== ( const TShear2< T > &  Other ) const

inline

Equality.

TransformPoint()

template<typename T >

template<typename ArgType >

UE::Math::TVector2< ArgType > TShear2< T >::TransformPoint ( const UE::Math::TVector2< ArgType > &  Point ) const

inline

Transform 2D Point [X Y] * [1 YY] == [X+Y*XX Y+X*YY] [XX 1]

TransformVector()

template<typename T >

template<typename ArgType >

UE::Math::TVector2< ArgType > TShear2< T >::TransformVector ( const UE::Math::TVector2< ArgType > &  Vector ) const

inline

Transform 2D Vector

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

• Engine/Source/Runtime/Core/Public/Math/TransformCalculus2D.h