UDocumentation UE5.7 10.02.2026 (Source)
API documentation for Unreal Engine 5.7
UE::CADKernel::FCurve Class Referenceabstract

#include <Curve.h>

+ Inheritance diagram for UE::CADKernel::FCurve:

Public Member Functions

virtual void Serialize (FCADKernelArchive &Ar) override
 
int32 GetDimension () const
 
virtual EEntity GetEntityType () const override
 
virtual ECurve GetCurveType () const =0
 
double GetUMin () const
 
double GetUMax () const
 
const FLinearBoundaryGetBoundary () const
 
virtual TSharedPtr< FEntityGeomApplyMatrix (const FMatrixH &InMatrix) const override=0
 
virtual void Offset (const FVector &OffsetDirection)=0
 
virtual double GetLength (double Tolerance) const
 
virtual void EvaluatePoint (double Coordinate, FCurvePoint &OutPoint, int32 DerivativeOrder=0) const
 
virtual FVector EvaluatePoint (double Coordinate) const
 
virtual void Evaluate2DPoint (double Coordinate, FCurvePoint2D &OutPoint, int32 DerivativeOrder=0) const
 
virtual FVector2d Evaluate2DPoint (double Coordinate) const
 
virtual void Evaluate2DPoint (double Coordinate, FVector2d &OutPoint) const
 
virtual void EvaluatePoints (const TArray< double > &Coordinates, TArray< FCurvePoint > &OutPoints, int32 DerivativeOrder=0) const
 
virtual void EvaluatePoints (const TArray< double > &Coordinates, TArray< FVector > &OutPoints) const
 
virtual void Evaluate2DPoints (const TArray< double > &Coordinates, TArray< FVector2d > &OutPoints) const
 
virtual void Evaluate2DPoints (const TArray< double > &Coordinates, TArray< FCurvePoint2D > &OutPoints, int32 DerivativeOrder=0) const
 
void FindNotDerivableCoordinates (int32 DerivativeOrder, TArray< double > &OutNotDerivableCoordinates) const
 
virtual void FindNotDerivableCoordinates (const FLinearBoundary &InBoundary, int32 DerivativeOrder, TArray< double > &OutNotDerivableCoordinates) const
 
void Presample (TArray< double > &OutSampling, double Tolerance) const
 
virtual void Presample (const FLinearBoundary &InBoundary, double Tolerance, TArray< double > &OutSampling) const
 
virtual TSharedPtr< FCurveMakeBoundedCurve (const FLinearBoundary &InBoundary)
 
virtual TSharedPtr< FCurveRebound (const FLinearBoundary &InBoundary)
 
virtual void ExtendTo (const FVector &DesiredPosition)
 
virtual void ExtendTo (const FVector2d &DesiredPosition)
 
- Public Member Functions inherited from UE::CADKernel::FEntityGeom
 FEntityGeom ()=default
 
FIdent GetKioId () const
 
- Public Member Functions inherited from UE::CADKernel::FEntity
virtual ~FEntity ()
 
virtual void Delete ()
 
virtual void Empty ()
 
bool IsTopologicalEntity () const
 
bool IsTopologicalShapeEntity () const
 
bool IsGeometricalEntity ()
 
const TCHARGetTypeName () const
 
const FIdentGetId () const
 
virtual void SpawnIdent (FDatabase &Database)
 
virtual void ResetMarkersRecursively () const
 
- Public Member Functions inherited from TSharedFromThis< FEntity >
TSharedRef< FEntity, Mode > AsShared ()
 
TSharedRef< FEntity const, Mode > AsShared () const
 
TSharedRef< SubobjectType, Mode > AsSharedSubobject (SubobjectType *SubobjectPtr) const
 
TWeakPtr< FEntity, Mode > AsWeak ()
 
TWeakPtr< FEntity const, Mode > AsWeak () const
 
TWeakPtr< SubobjectType, Mode > AsWeakSubobject (SubobjectType *SubobjectPtr) const
 
void UpdateWeakReferenceInternal (TSharedPtr< SharedPtrType, SharedPtrMode > const *InSharedPtr, OtherType *InObject) const
 
void UpdateWeakReferenceInternal (TSharedRef< SharedRefType, SharedPtrMode > const *InSharedRef, OtherType *InObject) const
 
UE_FORCEINLINE_HINT bool DoesSharedInstanceExist () const
 
- Public Member Functions inherited from UE::CADKernel::FHaveStates
 FHaveStates ()
 
void Serialize (FCADKernelArchive &Ar)
 
void ResetElementStatus ()
 
bool HasMarker1 () const
 
bool HasMarker2 () const
 
bool HasMarker1And2 () const
 
bool HasMarker1Or2 () const
 
void SetMarker1 () const
 
void SetMarker2 () const
 
void ResetMarker1 () const
 
void ResetMarker2 () const
 
void ResetMarkers () const
 
bool IsDeleted () const
 
void SetDeletedMarker () const
 
void ResetDeleted () const
 
virtual bool IsDeletedOrDegenerated () const
 
virtual bool IsDegenerated () const
 
virtual void SetAsDegenerated () const
 
virtual void ResetDegenerated () const
 
void SetWaitingMarker () const
 
void ResetWaitingMarker () const
 
virtual bool IsWaiting () const
 
void SetProcessedMarker () const
 
void ResetProcessedMarker () const
 
virtual bool IsProcessed () const
 
virtual bool IsProcessedDeletedOrDegenerated () const
 
void SetToProcessMarker () const
 
void ResetToProcessMarker () const
 
virtual bool IsToProcess () const
 
virtual bool IsNotToProcess () const
 
virtual bool IsNotToOrAlreadyProcess () const
 

Static Public Member Functions

static TSharedPtr< FCurveMakeNurbsCurve (FNurbsCurveData &InNurbsData)
 
static TSharedPtr< FCurveMakeBezierCurve (const TArray< FVector > &InPoles)
 
static TSharedPtr< FCurveMakeSplineCurve (const TArray< FVector > &InPoles)
 
static TSharedPtr< FCurveMakeSplineCurve (const TArray< FVector > &InPoles, const TArray< FVector > &Tangents)
 
static TSharedPtr< FCurveMakeSplineCurve (const TArray< FVector > &InPoles, const TArray< FVector > &ArriveTangents, const TArray< FVector > &LeaveTangents)
 
static TSharedPtr< FEntityDeserialize (FCADKernelArchive &Archive)
 
- Static Public Member Functions inherited from UE::CADKernel::FEntity
template<typename OtherEntity , typename... InArgTypes>
static TSharedRef< OtherEntity > MakeShared (InArgTypes &&... Args)
 
template<typename OtherEntity >
static TSharedRef< OtherEntity > MakeShared (FCADKernelArchive &Archive)
 
static void SerializeIdent (FCADKernelArchive &Ar, TSharedPtr< FEntity > &Entity, bool bSaveSelection=true)
 
static void SerializeIdent (FCADKernelArchive &Ar, TWeakPtr< FEntity > &Entity, bool bSaveSelection=true)
 
static void SerializeIdent (FCADKernelArchive &Ar, FEntity **Entity, bool bSaveSelection=true)
 
template<typename EntityType >
static void SerializeIdent (FCADKernelArchive &Ar, EntityType **Entity, bool bSaveSelection=true)
 
template<typename EntityType >
static void SerializeIdent (FCADKernelArchive &Ar, TSharedPtr< EntityType > &Entity, bool bSaveSelection=true)
 
template<typename EntityType >
static void SerializeIdent (FCADKernelArchive &Ar, TWeakPtr< EntityType > &Entity, bool bSaveSelection=true)
 
static void SerializeIdents (FCADKernelArchive &Ar, TArray< FEntity * > &Array, bool bSaveSelection=true)
 
static void SerializeIdents (FCADKernelArchive &Ar, TArray< TWeakPtr< FEntity > > &Array, bool bSaveSelection=true)
 
static void SerializeIdents (FCADKernelArchive &Ar, TArray< TSharedPtr< FEntity > > &Array, bool bSaveSelection=true)
 
static void SerializeIdents (FCADKernelArchive &Ar, TArray< TOrientedEntity< FEntity > > &Array)
 
template<typename EntityType >
static void SerializeIdents (FCADKernelArchive &Ar, TArray< EntityType * > &Array, bool bSaveSelection=true)
 
template<typename EntityType >
static void SerializeIdents (FCADKernelArchive &Ar, TArray< TWeakPtr< EntityType > > &Array, bool bSaveSelection=true)
 
template<typename EntityType >
static void SerializeIdents (FCADKernelArchive &Ar, TArray< TSharedPtr< EntityType > > &Array, bool bSaveSelection=true)
 
static void SpawnIdentOnEntities (TArray< FEntity * > &Array, FDatabase &Database)
 
static void SpawnIdentOnEntities (TArray< TSharedPtr< FEntity > > &Array, FDatabase &Database)
 
static void SpawnIdentOnEntities (TArray< TOrientedEntity< FEntity > > &Array, FDatabase &Database)
 
template<typename EntityType >
static void SpawnIdentOnEntities (TArray< TSharedPtr< EntityType > > &Array, FDatabase &Database)
 
static void ResetMarkersRecursivelyOnEntities (const TArray< FEntity * > &Array)
 
static void ResetMarkersRecursivelyOnEntities (const TArray< TWeakPtr< FEntity > > &Array)
 
static void ResetMarkersRecursivelyOnEntities (const TArray< TSharedPtr< FEntity > > &Array)
 
static void ResetMarkersRecursivelyOnEntities (const TArray< TOrientedEntity< FEntity > > &Array)
 
template<typename EntityType >
static void ResetMarkersRecursivelyOnEntities (const TArray< TSharedPtr< EntityType > > &Array)
 
static TSharedPtr< FEntityDeserialize (FCADKernelArchive &Ar)
 
static const TCHARGetTypeName (EEntity Type)
 

Protected Member Functions

 FCurve (int8 InDimension=3)
 
 FCurve (const FLinearBoundary &InBounds, int8 InDimension=3)
 
virtual double ComputeLength (const FLinearBoundary &InBoundary, double Tolerance) const
 
virtual double ComputeLength2D (const FLinearBoundary &InBoundary, double Tolerance) const
 
- Protected Member Functions inherited from UE::CADKernel::FEntity
bool SetId (FDatabase &Database)
 
- Protected Member Functions inherited from TSharedFromThis< FEntity >
 TSharedFromThis ()
 
 TSharedFromThis (TSharedFromThis const &)
 
UE_FORCEINLINE_HINT TSharedFromThisoperator= (TSharedFromThis const &)
 
 ~TSharedFromThis ()
 

Protected Attributes

TCache< doubleGlobalLength
 
FLinearBoundary Boundary
 
int8 Dimension
 
- Protected Attributes inherited from UE::CADKernel::FEntityGeom
FIdent CtKioId = 0
 
- Protected Attributes inherited from UE::CADKernel::FEntity
FIdent Id = 0
 
- Protected Attributes inherited from UE::CADKernel::FHaveStates
EHaveStates States
 

Friends

class FEntity
 

Additional Inherited Members

- Static Protected Member Functions inherited from TSharedFromThis< FEntity >
static UE_FORCEINLINE_HINT TSharedRef< OtherType, Mode > SharedThis (OtherType *ThisPtr)
 
static UE_FORCEINLINE_HINT TSharedRef< OtherType const, Mode > SharedThis (const OtherType *ThisPtr)
 
- Static Protected Attributes inherited from UE::CADKernel::FEntity
static const TCHARTypesNames []
 

Constructor & Destructor Documentation

◆ FCurve() [1/2]

UE::CADKernel::FCurve::FCurve ( int8  InDimension = 3)
inlineprotected

◆ FCurve() [2/2]

UE::CADKernel::FCurve::FCurve ( const FLinearBoundary InBounds,
int8  InDimension = 3 
)
inlineprotected

Member Function Documentation

◆ ApplyMatrix()

◆ ComputeLength()

double UE::CADKernel::FCurve::ComputeLength ( const FLinearBoundary InBoundary,
double  Tolerance 
) const
protectedvirtual

◆ ComputeLength2D()

double UE::CADKernel::FCurve::ComputeLength2D ( const FLinearBoundary InBoundary,
double  Tolerance 
) const
protectedvirtual

◆ Deserialize()

TSharedPtr< FEntity > UE::CADKernel::FCurve::Deserialize ( FCADKernelArchive Archive)
static

Specific method for curve family to instantiate the correct derived class of FCurve

◆ Evaluate2DPoint() [1/3]

virtual FVector2d UE::CADKernel::FCurve::Evaluate2DPoint ( double  Coordinate) const
inlinevirtual

Evaluate exact 3D point of the curve at the input Coordinate The function can only be used with 3D curve (Dimension == 3)

Reimplemented in UE::CADKernel::FPolyline2DCurve.

◆ Evaluate2DPoint() [2/3]

virtual void UE::CADKernel::FCurve::Evaluate2DPoint ( double  Coordinate,
FCurvePoint2D OutPoint,
int32  DerivativeOrder = 0 
) const
inlinevirtual

◆ Evaluate2DPoint() [3/3]

virtual void UE::CADKernel::FCurve::Evaluate2DPoint ( double  Coordinate,
FVector2d OutPoint 
) const
inlinevirtual

Evaluate exact 2D point of the curve at the input Coordinate The function can only be used with 2D curve (Dimension == 2)

Reimplemented in UE::CADKernel::FSurfacicCurve.

◆ Evaluate2DPoints() [1/2]

void UE::CADKernel::FCurve::Evaluate2DPoints ( const TArray< double > &  Coordinates,
TArray< FCurvePoint2D > &  OutPoints,
int32  DerivativeOrder = 0 
) const
virtual

Evaluate exact 2D points of the curve at the input Coordinates The function can only be used with 2D curve (Dimension == 2)

Reimplemented in UE::CADKernel::FSurfacicCurve, and UE::CADKernel::FPolyline2DCurve.

◆ Evaluate2DPoints() [2/2]

void UE::CADKernel::FCurve::Evaluate2DPoints ( const TArray< double > &  Coordinates,
TArray< FVector2d > &  OutPoints 
) const
virtual

Evaluate exact 2D points of the curve at the input Coordinates The function can only be used with 2D curve (Dimension == 2)

Reimplemented in UE::CADKernel::FSurfacicCurve.

◆ EvaluatePoint() [1/2]

virtual FVector UE::CADKernel::FCurve::EvaluatePoint ( double  Coordinate) const
inlinevirtual

Evaluate exact 3D point of the curve at the input Coordinate The function can only be used with 3D curve (Dimension == 3)

Reimplemented in UE::CADKernel::FPolylineCurve.

◆ EvaluatePoint() [2/2]

virtual void UE::CADKernel::FCurve::EvaluatePoint ( double  Coordinate,
FCurvePoint OutPoint,
int32  DerivativeOrder = 0 
) const
inlinevirtual

◆ EvaluatePoints() [1/2]

void UE::CADKernel::FCurve::EvaluatePoints ( const TArray< double > &  Coordinates,
TArray< FCurvePoint > &  OutPoints,
int32  DerivativeOrder = 0 
) const
virtual

Evaluate exact 3D points of the curve at the input Coordinates The function can only be used with 3D curve (Dimension == 3)

Reimplemented in UE::CADKernel::FSurfacicCurve.

◆ EvaluatePoints() [2/2]

void UE::CADKernel::FCurve::EvaluatePoints ( const TArray< double > &  Coordinates,
TArray< FVector > &  OutPoints 
) const
virtual

Evaluate exact 3D points of the curve at the input Coordinates The function can only be used with 3D curve (Dimension == 3)

◆ ExtendTo() [1/2]

virtual void UE::CADKernel::FCurve::ExtendTo ( const FVector DesiredPosition)
inlinevirtual

◆ ExtendTo() [2/2]

virtual void UE::CADKernel::FCurve::ExtendTo ( const FVector2d DesiredPosition)
inlinevirtual

Linear deformation of the curve along the axis [Start point, End point] so that the nearest extremity is at the desired position and the other is not modified

Reimplemented in UE::CADKernel::FRestrictionCurve.

◆ FindNotDerivableCoordinates() [1/2]

◆ FindNotDerivableCoordinates() [2/2]

void UE::CADKernel::FCurve::FindNotDerivableCoordinates ( int32  DerivativeOrder,
TArray< double > &  OutNotDerivableCoordinates 
) const
inline

◆ GetBoundary()

const FLinearBoundary & UE::CADKernel::FCurve::GetBoundary ( ) const
inline

◆ GetCurveType()

◆ GetDimension()

int32 UE::CADKernel::FCurve::GetDimension ( ) const
inline

◆ GetEntityType()

virtual EEntity UE::CADKernel::FCurve::GetEntityType ( ) const
inlineoverridevirtual

◆ GetLength()

double UE::CADKernel::FCurve::GetLength ( double  Tolerance) const
virtual

◆ GetUMax()

double UE::CADKernel::FCurve::GetUMax ( ) const
inline

◆ GetUMin()

double UE::CADKernel::FCurve::GetUMin ( ) const
inline

◆ MakeBezierCurve()

TSharedPtr< FCurve > UE::CADKernel::FCurve::MakeBezierCurve ( const TArray< FVector > &  InPoles)
static

◆ MakeBoundedCurve()

TSharedPtr< FCurve > UE::CADKernel::FCurve::MakeBoundedCurve ( const FLinearBoundary InBoundary)
virtual

Make a new curve based on the new bounds. If the new bound is nearly equal to the initial bound, no curve is made (return TSharedPtr<FCurve>())

Reimplemented in UE::CADKernel::FBoundedCurve.

◆ MakeNurbsCurve()

TSharedPtr< FCurve > UE::CADKernel::FCurve::MakeNurbsCurve ( FNurbsCurveData InNurbsData)
static

◆ MakeSplineCurve() [1/3]

TSharedPtr< FCurve > UE::CADKernel::FCurve::MakeSplineCurve ( const TArray< FVector > &  InPoles)
static

◆ MakeSplineCurve() [2/3]

TSharedPtr< FCurve > UE::CADKernel::FCurve::MakeSplineCurve ( const TArray< FVector > &  InPoles,
const TArray< FVector > &  ArriveTangents,
const TArray< FVector > &  LeaveTangents 
)
static

◆ MakeSplineCurve() [3/3]

TSharedPtr< FCurve > UE::CADKernel::FCurve::MakeSplineCurve ( const TArray< FVector > &  InPoles,
const TArray< FVector > &  Tangents 
)
static

◆ Offset()

◆ Presample() [1/2]

void UE::CADKernel::FCurve::Presample ( const FLinearBoundary InBoundary,
double  Tolerance,
TArray< double > &  OutSampling 
) const
virtual

◆ Presample() [2/2]

void UE::CADKernel::FCurve::Presample ( TArray< double > &  OutSampling,
double  Tolerance 
) const
inline

Generate a pre-sampling of the curve saved in OutCoordinates. This sampling is light enough to allow a fast computation, precise enough to compute accurately meshing criteria

◆ Rebound()

TSharedPtr< FCurve > UE::CADKernel::FCurve::Rebound ( const FLinearBoundary InBoundary)
virtual

Rebound the curve, if not possible make a new curve based on the new bounds.

◆ Serialize()

Friends And Related Symbol Documentation

◆ FEntity

friend class FEntity
friend

Member Data Documentation

◆ Boundary

FLinearBoundary UE::CADKernel::FCurve::Boundary
protected

◆ Dimension

int8 UE::CADKernel::FCurve::Dimension
protected

◆ GlobalLength

TCache<double> UE::CADKernel::FCurve::GlobalLength
mutableprotected

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