1. Epic GamesDeveloper
  3. FTopologicalEdge

FTopologicalEdge

API > API/Runtime > API/Runtime/CADKernel

   
Name FTopologicalEdge
Type class
Header File /Engine/Source/Runtime/Datasmith/CADKernel/Base/Public/Topo/TopologicalEdge.h
Include Path #include "Topo/TopologicalEdge.h"

Syntax

class FTopologicalEdge : public UE::CADKernel::TLinkable< FTopologicalEdge, FEdgeLink >

Inheritance Hierarchy

Constructors

Name Remarks Include Path Unreal Specifiers

FTopologicalEdge ( const TSharedRef< FSurface >& InSurface,
const FVector2d& InCoordinateVertex1,
const TSharedRef< FTopologicalVertex >& InVertex1,
const FVector2d& InCoordinateVertex2,
const TSharedRef< FTopologicalVertex >& InVertex2
)

   Topo/TopologicalEdge.h  

FTopologicalEdge ( const TSharedRef< FRestrictionCurve >& InCurve,
const TSharedRef< FTopologicalVertex >& InVertex1,
const TSharedRef< FTopologicalVertex >& InVertex2
)

   Topo/TopologicalEdge.h  

FTopologicalEdge ( const TSharedRef< FRestrictionCurve >& InCurve,
const FLinearBoundary& InBoundary
)

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

FTopologicalEdge ( const TSharedRef< FRestrictionCurve >& InCurve,
const TSharedRef< FTopologicalVertex >& InVertex1,
const TSharedRef< FTopologicalVertex >& InVertex2,
const FLinearBoundary& InBoundary
)

 MANDATORY Constructors of FEdge cannot be used directly, use FEdge::Make to create an FEdge object. Topo/TopologicalEdge.h  

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FTopologicalEdge()

   Topo/TopologicalEdge.h  

Variables

Protected

Name Type Remarks Include Path Unreal Specifiers
FactorToComputeMaxTol const double   Topo/TopologicalEdge.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void AddImposedCuttingPointU ( const double ImposedCuttingPointU,
const int32 OppositeNodeIndex,
const double DeltaU
)

   Topo/TopologicalEdge.h  

void AddThinZone ( FThinZoneSide* InThinZoneSide,
const FLinearBoundary& InThinZoneBounds
)

   Topo/TopologicalEdge.h  

void AddTwinsCuttingPoint ( const double Coord,
const double DeltaU
)

   Topo/TopologicalEdge.h  

FVector2d Approximate2DPoint ( const double InCoordinate
) const

 Approximation of 2D point defined by its coordinate compute with carrier surface 2D polyline Topo/TopologicalEdge.h  

void Approximate2DPoints ( const TArray< double >& InCoordinates,
TArray< FVector2d >& OutPoints
) const

 Approximation of 2D points defined by its coordinates compute with carrier surface 2D polyline Topo/TopologicalEdge.h  

void ApproximatePoints ( const TArray< double >& InCoordinates,
TArray< FVector >& OutPoints
) const

 Approximation of 3D points compute with carrier surface 3D polyline Topo/TopologicalEdge.h  

void ApproximatePolyline ( FSurfacicPolyline& Polyline
) const

 Approximation of surfacic polyline (points 2d, 3d, normals, tangents) defined by its coordinates compute with carrier surface polyline Topo/TopologicalEdge.h  

bool CheckIfDegenerated()

 Checks if the carrier curve is degenerated i.e. the 2d length of the curve is nearly zero If the 3d length is nearly zero, the edge is flag as degenerated Topo/TopologicalEdge.h  
Generate a sampling of the curve. Topo/TopologicalEdge.h  

void ComputeEdge2DProperties ( FEdge2DProperties& SlopeCharacteristics
)

 Compute the edge 2D properties i.e. the mean and standard deviation of the slop of the edge in the parametric space of the carrier surface Topo/TopologicalEdge.h  

void ComputeIntersectionsWithIsos ( const TArray< double >& InIsoCoordinates,
const EIso InTypeIso,
const FSurfacicTolerance& ToleranceIso,
TArray< double >& OutIntersection
) const

   Topo/TopologicalEdge.h  

void ComputeLength()

   Topo/TopologicalEdge.h  

void Disjoin()

 Remove the edge and the extremity vertices of the linked entity vs UnlinkTwinEntities delete only the edge link Topo/TopologicalEdge.h  

int32 EvaluateCuttingPointNum()

   Topo/TopologicalEdge.h  

void EvaluatePoint ( double InCoordinate,
int32 Derivative,
FCurvePoint& Point
) const

 Exact evaluation of point on the 3D curve According to derivativeOrder Gradient of the point (DerivativeOrder = 1) and Laplacian (DerivativeOrder = 1) can also be return Topo/TopologicalEdge.h  

void EvaluatePoints ( const TArray< double >& InCoordinates,
int32 DerivativeOrder,
TArray< FCurvePoint >& OutPoints
) const

 Exact evaluation of points on the 3D curve According to derivativeOrder Gradient of the point (DerivativeOrder = 1) and Laplacian (DerivativeOrder = 1) can also be return Topo/TopologicalEdge.h  

bool ExtendTo ( bool bStartExtremity,
const FVector2d& NewExtremityCoordinate,
TSharedRef< FTopologicalVertex >& NewVertex
)

 Extend the Edge to the NewVertex. Topo/TopologicalEdge.h  

void GenerateMeshElements ( FModelMesh& MeshModel
)

   Topo/TopologicalEdge.h  

const FLinearBoundary & GetBoundary()

   Topo/TopologicalEdge.h  

const TArray< double > & GetCrossingPointUs ()

   Topo/TopologicalEdge.h  

TArray< double > & GetCrossingPointUs ()

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

TArray< double > GetCuttingPointCoordinates()

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

double GetDeltaUFor ( double Coordinate,
int32& Index
) const

   Topo/TopologicalEdge.h  

TArray< double > & GetDeltaUMaxs ()

   Topo/TopologicalEdge.h  

const TArray< double > & GetDeltaUMaxs ()

   Topo/TopologicalEdge.h  

TArray< double > & GetDeltaUMins()

   Topo/TopologicalEdge.h  

void GetDiscretization2DPoints ( EOrientation Orientation,
TArray< PointType >& OutPoints
) const

 Get the discretization points of the edge and add them to the outpoints TArray Topo/TopologicalEdge.h  

FVector GetEndBarycenter()

   Topo/TopologicalEdge.h  

FVector GetEndCoordinate()

   Topo/TopologicalEdge.h  

double GetEndCurvilinearCoordinates()

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

const TSharedRef< FTopologicalVertex > GetEndVertex ( bool Forward
) const

   Topo/TopologicalEdge.h  

void GetExtremities ( FSurfacicCurveExtremities& Extremities
) const

   Topo/TopologicalEdge.h  

FTopologicalFace * GetFace()

   Topo/TopologicalEdge.h  

FTopologicalEdge * GetFirstTwinEdge()

   Topo/TopologicalEdge.h  

const TArray< FImposedCuttingPoint > & GetImposedCuttingPoints()

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

TArray< FTopologicalFace * > GetLinkedFaces()

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

const FEdgeMesh * GetMesh()

   Topo/TopologicalEdge.h  

FEdgeMesh & GetOrCreateMesh ( FModelMesh& MeshModel
)

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

const FTopologicalVertex * GetOtherVertex ( const FTopologicalVertex& Vertex
) const

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

TArray< double > GetPreElementLengths()

 Compute the lengths of each pre-elements of the edge i.e the elements based of the cutting points of the edges. Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

FVector GetStartBarycenter()

   Topo/TopologicalEdge.h  

FVector GetStartCoordinate()

   Topo/TopologicalEdge.h  

double GetStartCurvilinearCoordinates()

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

const TSharedRef< FTopologicalVertex > GetStartVertex ( bool Forward
) const

   Topo/TopologicalEdge.h  
  Topo/TopologicalEdge.h  

FVector2d GetTangent2DAt ( const FTopologicalVertex& InVertex
)

   Topo/TopologicalEdge.h  

FVector2d GetTangent2DAt ( const double InCoordinate
) const

   Topo/TopologicalEdge.h  

FVector GetTangentAt ( const FTopologicalVertex& InVertex
)

 Return the tangent at the input vertex Topo/TopologicalEdge.h  

FVector GetTangentAt ( const double InCoordinate
) const

   Topo/TopologicalEdge.h  

void GetTangentsAtExtremities ( FVector& StartTangent,
FVector& EndTangent,
EOrientation Orientation
) const

   Topo/TopologicalEdge.h  

void GetTangentsAtExtremities ( FVector& StartTangent,
FVector& EndTangent,
bool bForward
) const

   Topo/TopologicalEdge.h  

const TArray< FLinearBoundary > & GetThinZoneBounds()

   Topo/TopologicalEdge.h  

int32 GetThinZoneCount()

   Topo/TopologicalEdge.h  

const TArray< FThinZoneSide * > & GetThinZoneSides()

   Topo/TopologicalEdge.h  

double GetTolerance2DAt ( double Coordinate
) const

   Topo/TopologicalEdge.h  

double GetTolerance3D()

   Topo/TopologicalEdge.h  

FTopologicalEdge * GetTwinEdge()

   Topo/TopologicalEdge.h  

bool HasSameLengthAs ( const FTopologicalEdge& Edge,
double EdgeLengthTolerance
) const

   Topo/TopologicalEdge.h  

void InitDeltaUs()

   Topo/TopologicalEdge.h  

bool IsBorder()

   Topo/TopologicalEdge.h  

bool IsClosed()

   Topo/TopologicalEdge.h  

bool IsConnectedTo ( const FTopologicalFace* Face
) const

   Topo/TopologicalEdge.h  

bool IsLinkableTo ( const FTopologicalEdge& Edge,
double EdgeLengthTolerance
) const

 It can be linked to the edge if : Topo/TopologicalEdge.h  

bool IsSameDirection ( const FTopologicalEdge& Edge
) const

   Topo/TopologicalEdge.h  

bool IsSharpEdge()

   Topo/TopologicalEdge.h  

bool IsSurfacic()

   Topo/TopologicalEdge.h  

bool IsTangentAtExtremitiesWith ( const FTopologicalEdge& Edge
) const

   Topo/TopologicalEdge.h  

bool IsThinPeak ()

 An edge is a thin peak means that this edge is a small edge at the extremity of a peak thin zone So this edge must not be meshed (except at its extremities) ThinSide 0 Topo/TopologicalEdge.h  

bool IsVirtuallyMeshed()

   Topo/TopologicalEdge.h  

double Length()

   Topo/TopologicalEdge.h  

void Link ( FTopologicalEdge& OtherEdge
)

 Link with the other edge. Topo/TopologicalEdge.h  

void LinkIfCoincident ( FTopologicalEdge& OtherEdge,
double EdgeLengthTolerance,
double SquareJoiningTolerance
)

 Link two edges. Topo/TopologicalEdge.h  

void LinkVertex()

   Topo/TopologicalEdge.h  

void Offset2D ( const FVector2d& OffsetDirection
)

   Topo/TopologicalEdge.h  

double ProjectPoint ( const PointType& InPointToProject,
PointType& OutProjectedPoint
) const

 Project Point (2D or 3D) on the polyline (2D or 3D) and return the coordinate of the projected point Topo/TopologicalEdge.h  

void ProjectPoints ( const TArray< FVector >& InPointsToProject,
TArray< double >& OutProjectedPointCoords,
TArray< FVector >& OutProjectedPoints
) const

 Project a set of points on the 3D polyline and return the coordinate of the projected point Topo/TopologicalEdge.h  

void ProjectTwinEdgePoints ( const TArray< FVector >& InPointsToProject,
bool bSameOrientation,
TArray< double >& OutProjectedPointCoords
) const

 Project a set of points of a twin edge on the 3D polyline and return the coordinate of the projected point Topo/TopologicalEdge.h  

void ProjectTwinEdgePointsOn2DCurve ( const TSharedRef< FTopologicalEdge >& InTwinEdge,
const TArray< double >& InTwinEdgePointCoords,
TArray< FVector2d >& OutPoints2D
)

 Compute 2D points of the edge coincident the points of the twin edge defined by their coordinates Topo/TopologicalEdge.h  

void RemovePreMesh()

 If the mesh of the edge is not built, Empty the CuttingPoints This allows to recompute a new discretization of the mesh based among other things on a new imposed cutting points (mesh of thin zone process) Topo/TopologicalEdge.h  

void ReplaceEdgeVertex ( bool bIsStartVertex,
TSharedRef< FTopologicalVertex >& NewVertex
)

 This function is used to : Topo/TopologicalEdge.h  

virtual void ResetThinPeakMarker()

   Topo/TopologicalEdge.h  

virtual void ResetVirtuallyMeshedMarker()

   Topo/TopologicalEdge.h  

void Sample ( const double DesiredSegmentLength,
TArray< double >& OutCoordinates
) const

 Samples the curve with segments of a desired length Topo/TopologicalEdge.h  

void SetEndVertex ( const double NewCoordinate,
const FVector& NewPoint3D
)

   Topo/TopologicalEdge.h  

void SetEndVertex ( const double NewCoordinate
)

   Topo/TopologicalEdge.h  

void SetStartVertex ( const double NewCoordinate
)

   Topo/TopologicalEdge.h  

void SetStartVertex ( const double NewCoordinate,
const FVector& NewPoint3D
)

   Topo/TopologicalEdge.h  

virtual void SetThinPeakMarker()

   Topo/TopologicalEdge.h  

virtual void SetVirtuallyMeshedMarker()

   Topo/TopologicalEdge.h  

void SortImposedCuttingPoints()

 For thin zone purpose. Topo/TopologicalEdge.h  

FTopologicalVertex * SplitAt ( double SplittingCoordinate,
const FVector& NewVertexCoordinate,
bool bKeepStartVertexConnectivity,
TSharedPtr< FTopologicalEdge >& OutNewEdge
)

 Split the edge at input coordinate. Topo/TopologicalEdge.h  

void TransferCuttingPointFromMeshedEdge ( bool bOnlyWithOppositeNode,
FAddCuttingPointFunc AddCuttingPoint
)

   Topo/TopologicalEdge.h  

void TransformActiveEdgeCoordinatesToLocalCoordinates ( const TArray< double >& InActiveEdgeCoordinate,
TArray< double >& OutLocalCoordinate
) const

   Topo/TopologicalEdge.h  

double TransformActiveEdgeCoordinateToLocalCoordinate ( const double ActiveEdgeCoordinate
) const

   Topo/TopologicalEdge.h  

void TransformLocalCoordinatesToActiveEdgeCoordinates ( const TArray< double >& InLocalCoordinate,
TArray< double >& OutActiveEdgeCoordinate
) const

   Topo/TopologicalEdge.h  

double TransformLocalCoordinateToActiveEdgeCoordinate ( const double LocalCoordinate
) const

   Topo/TopologicalEdge.h  

void TransformTwinEdgeCoordinatesToLocalCoordinates ( const FTopologicalEdge& TwinEdge,
const TArray< double >& InActiveEdgeCoordinate,
TArray< double >& OutLocalCoordinate
) const

   Topo/TopologicalEdge.h  

double TransformTwinEdgeCoordinateToLocalCoordinate ( const FTopologicalEdge& TwinEdge,
const double InTwinCoordinate
) const

   Topo/TopologicalEdge.h  

void Unlink()

 Remove the edge and the extremity vertices of the linked entity vs UnlinkTwinEntities delete only the edge link Topo/TopologicalEdge.h  

Overridden from FEntity

Name Remarks Include Path Unreal Specifiers

virtual void Empty()

   Topo/TopologicalEdge.h  

virtual EEntity GetEntityType()

   Topo/TopologicalEdge.h  

virtual void ResetMarkersRecursively()

   Topo/TopologicalEdge.h  

virtual void Serialize ( FCADKernelArchive& Ar
)

 Serialization of a FEntity. Topo/TopologicalEdge.h  

virtual void SpawnIdent ( FDatabase& Database
)

   Topo/TopologicalEdge.h  

Overridden from FHaveStates

Name Remarks Include Path Unreal Specifiers

virtual bool IsDegenerated()

 Important note: A Degenerated Edge is used to close 2D boundary in case of degenerated surface to ensureCADKernel a closed boundary Specific process is done for the mesh of this kind of surface Topo/TopologicalEdge.h  

Static

Name Remarks Include Path Unreal Specifiers

static TSharedPtr< FTopologicalEdge > CreateEdgeByMergingEdges ( const double SmallEdgeTolerance,
TArray< FOrientedEdge >& Edges,
const TSharedRef< FTopologicalVertex >& StartVertex,
const TSharedRef< FTopologicalVertex >& EndVertex
)

 Merge successive edges of a face in a single edge. Topo/TopologicalEdge.h  

static TSharedPtr< FTopologicalEdge > Make ( const TSharedRef< FRestrictionCurve >& InCurve
)

   Topo/TopologicalEdge.h  

static TSharedPtr< FTopologicalEdge > Make ( const TSharedRef< FSurface >& InSurface,
const FVector2d& InCoordinateVertex1,
const TSharedRef< FTopologicalVertex >& InVertex1,
const FVector2d& InCoordinateVertex2,
const TSharedRef< FTopologicalVertex >& InVertex2
)

 Build an edge to connect two vertices carried by a 2d segment Topo/TopologicalEdge.h  

static TSharedPtr< FTopologicalEdge > Make ( const TSharedRef< FRestrictionCurve >& InCurve,
const TSharedRef< FTopologicalVertex >& InVertex1,
const TSharedRef< FTopologicalVertex >& InVertex2,
const FLinearBoundary& InBoundary
)

   Topo/TopologicalEdge.h  

static TSharedPtr< FTopologicalEdge > Make ( const TSharedRef< FRestrictionCurve >& InCurve,
const TSharedRef< FTopologicalVertex >& InVertex1,
const TSharedRef< FTopologicalVertex >& InVertex2
)

   Topo/TopologicalEdge.h  

static TSharedPtr< FTopologicalEdge > Make ( const TSharedRef< FRestrictionCurve >& InCurve,
const FLinearBoundary& InBoundary
)

   Topo/TopologicalEdge.h  

static TSharedPtr< FTopologicalEdge > ReturnIfValid ( TSharedRef< FTopologicalEdge >& InEdge,
bool bCheckVertices
)

 To check the build edge before returning it or return TSharedPtr() if the edge is not valid Topo/TopologicalEdge.h  

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page