TScale | Unreal Engine 5.7 Documentation | Epic Developer Community

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Transform calculus for 3D types. Since UE4 already has existing 3D transform types, this is mostly a set of adapter overloads for the primitive operations requires by the transform calculus framework.

The following types are adapted.

float/double -> represents a uniform scale.
TScale -> represents a 3D non-uniform scale.
UE::Math::TVector -> represents a 3D translation.
UE::Math::TRotator -> represents a pure rotation.
UE::Math::TQuat -> represents a pure rotation.
UE::Math::TMatrix -> represents a general 3D homogeneous transform. Represents a 3D non-uniform scale (to disambiguate from an UE::Math::TVector, which is used for translation).

Serves as a good base example of how to write a class that supports the basic transform calculus operations.


Name	TScale
Type	class
Header File	/Engine/Source/Runtime/Core/Public/Math/TransformCalculus3D.h
Include Path	#include "Math/TransformCalculus3D.h"

Syntax

template<typename T>  
class TScale

Constructors

Name	Remarks	Include Path
TScale ()	Ctor. initialize to an identity scale, 1.0.	Math/TransformCalculus3D.h
TScale ( T InScale )	Ctor. initialize from a uniform scale.	Math/TransformCalculus3D.h
TScale ( const UE::Math::TVector< VType >& InScale )	Ctor. initialize from an UE::Math::TVector defining the 3D scale.	Math/TransformCalculus3D.h

Typedefs

Name	Type	Remarks	Include Path
Vector3Type	UE::Math::TVector< T >		Math/TransformCalculus3D.h

Variables

Protected

Name	Type	Remarks	Include Path	Unreal Specifiers
Scale	Vector3Type	Underlying storage of the 3D scale.	Math/TransformCalculus3D.h

Functions

Public

Name	Remarks	Include Path
TScale Concatenate ( const TScale& RHS ) const	Concatenate two scales.	Math/TransformCalculus3D.h
const Vector3Type & GetVector()	Access to the underlying UE::Math::TVector that stores the scale.	Math/TransformCalculus3D.h
TScale Inverse()	Invert the scale.	Math/TransformCalculus3D.h

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