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API > API/Runtime > API/Runtime/GeometryCore
References
| Module | GeometryCore |
| Header | /Engine/Source/Runtime/GeometryCore/Public/TransformTypes.h |
| Include | #include "TransformTypes.h" |
Syntax
template<typename RealType>
class TTransformSRT3
Remarks
TTransformSRT3 is a variant of the standard UE FTransform/TTransform that uses the UE::Geometry::TQuaternion instead of the UE::Math::TQuat.
Transform order is Scale, then Rotate, then Translate. So mathematically (T * R * S) * v , assuming traditional matrix-vector multiplication order (note that the UE::Math library uses the opposite vector*Matrix ordering for TMatrix!)
Implicit constructors/casts are defined to/from FTransform3d and FTransform3f. This will likely be revised in future so that conversions that lose precision are explicit.
Variables
| Type | Name | Description | |
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TQuaternion< RealType > | Rotation | |
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TVector< RealType > | Scale3D | |
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TVector< RealType > | Translation |
Constructors
| Type | Name | Description | |
|---|---|---|---|
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TTransformSRT3
(
const UE::Math::TVector< RealType >& TranslationIn |
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TTransformSRT3
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const FTransform3f& Transform |
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TTransformSRT3
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const FTransform3d& Transform |
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TTransformSRT3
(
const TQuaternion< RealType >& RotationIn, |
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TTransformSRT3
(
const TQuaternion< RealType >& RotationIn, |
Functions
| Type | Name | Description | |
|---|---|---|---|
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bool | CanRepresentInverse
(
RealType Tolerance |
Reports wheth the inverse is representable with a single TTransformSRT3. |
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void | ClampMinimumScale
(
RealType MinimumScale |
Clamp all scale components to a minimum value. |
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RealType | ||
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const TQuaternion< RealType > & | GetRotation () |
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FRotator | GetRotator () |
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TVector< RealType > | GetSafeScaleReciprocal
(
const TVector< RealType >& InScale, |
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const TVector< RealType > & | GetScale () |
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const TVector< RealType > & | GetScale3D () |
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const TVector< RealType > & | ||
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bool | HasNonUniformScale
(
RealType Tolerance |
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TTransformSRT3< RealType > | Identity () |
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TVector< RealType2 > | InverseTransformNormal
(
const UE::Math::TVector< RealType2 >& Normal |
Surface Normals are special, their inverse transform is InverseRotate( Normalize(Scale * Normal) ) ) |
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TVector< RealType2 > | InverseTransformPosition
(
const UE::Math::TVector< RealType2 >& P |
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UE::Math::TRay< RealType > | InverseTransformRay
(
const UE::Math::TRay< RealType >& Ray |
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TVector< RealType2 > | InverseTransformVector
(
const UE::Math::TVector< RealType2 >& V |
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TVector< RealType2 > | InverseTransformVectorNoScale
(
const UE::Math::TVector< RealType2 >& V |
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TTransformSRT3< RealType > | InverseUnsafe
(
RealType Tolerance |
Attempts to return an inverse, but will give an incorrect result if the transform has both non-uniform scaling and rotation, because TTransformSRT3 |
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void | SetRotation
(
const TQuaternion< RealType >& RotationIn |
Set Rotation portion of Transform |
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void | SetScale
(
const UE::Math::TVector< RealType >& ScaleIn |
Set Scale portion of transform |
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void | SetTranslation
(
const UE::Math::TVector< RealType >& TranslationIn |
Set Translation portion of transform |
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TVector< RealType2 > | TransformNormal
(
const UE::Math::TVector< RealType2 >& Normal |
Surface Normals are special, their transform is Rotate( Normalize( (1/Scale) * Normal) ) ). However 1/Scale requires special handling in case any component is near-zero. |
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TVector< RealType2 > | TransformPosition
(
const TVector< RealType2 >& P |
The following templates perform vector-type-conversion variants. |
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UE::Math::TRay< RealType > | TransformRay
(
const UE::Math::TRay< RealType >& Ray |
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TVector< RealType2 > | TransformVector
(
const UE::Math::TVector< RealType2 >& V |
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TVector< RealType2 > | TransformVectorNoScale
(
const UE::Math::TVector< RealType2 >& V |
Operators
| Type | Name | Description | |
|---|---|---|---|
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