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FEdgeLoop

Sequential lists of vertices/edges in a mesh that form a closed loop

API > API/Runtime > API/Runtime/GeometryCore

Sequential lists of vertices/edges in a mesh that form a closed loop

   
Name FEdgeLoop
Type class
Header File /Engine/Source/Runtime/GeometryCore/Public/EdgeLoop.h
Include Path #include "EdgeLoop.h"

Syntax

class FEdgeLoop

Constructors

Name Remarks Include Path Unreal Specifiers

FEdgeLoop ( const FDynamicMesh3* mesh,
const TArray< int >& vertices,
const TArray< int >& edges
)

 Initialize EdgeLoop with the given vertices and edges EdgeLoop.h  

FEdgeLoop ( const FDynamicMesh3* mesh
)

   EdgeLoop.h  
  EdgeLoop.h  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
bBowtiesCalculated bool If true, then BowtieVertices list is valid EdgeLoop.h  
BowtieVertices TArray< int > List of bowtie vertices. This list is only valid if bBowtiesCalculated = true. EdgeLoop.h  
Edges TArray< int > Ordered list of edges forming the EdgeLoop EdgeLoop.h  
Mesh const FDynamicMesh3 * The Mesh that contains this EdgeLoop EdgeLoop.h  
Vertices TArray< int > Ordered list of vertices forming the EdgeLoop EdgeLoop.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void CalculateBowtieVertices()

 Populate the BowtieVertices member EdgeLoop.h  

bool CheckValidity ( EValidityCheckFailMode FailMode
) const

 Exhaustively check that verts and edges of this EdgeLoop are consistent. This is quite expensive. EdgeLoop.h  

int FindNearestVertexIndex ( const FVector3d& QueryPoint
) const

   EdgeLoop.h  

int FindVertexIndex ( int VertexID
) const

   EdgeLoop.h  

FAxisAlignedBox3d GetBounds()

   EdgeLoop.h  

int GetEdgeCount()

   EdgeLoop.h  

FVector3d GetNextVertex ( int32 LoopIndex
) const

   EdgeLoop.h  

FVector3d GetPrevVertex ( int32 LoopIndex
) const

   EdgeLoop.h  

FVector3d GetVertex ( int LoopIndex
) const

   EdgeLoop.h  

int GetVertexCount()

   EdgeLoop.h  

void GetVertices ( TArray< VecType >& VerticesOut
) const

 Add the vertices of the loop to the Vertices array EdgeLoop.h  

void Initialize ( const FDynamicMesh3* mesh,
const TArray< int >& vertices,
const TArray< int >& edges,
const TArray< int >* BowtieVerticesIn
)

 Initialize the loop data EdgeLoop.h  

void InitializeFromEdges ( const FDynamicMesh3* MeshIn,
const TArray< int >& EdgesIn
)

 Construct an FEdgeLoop from a list of edges of the mesh EdgeLoop.h  

void InitializeFromEdges ( const TArray< int >& EdgesIn
)

 Construct an FEdgeLoop from a list of edges of the mesh EdgeLoop.h  

bool InitializeFromVertices ( const FDynamicMesh3* MeshIn,
const TArray< int >& VerticesIn,
bool bAutoOrient
)

 Construct EdgeLoop from list of vertices of mesh EdgeLoop.h  

bool InitializeFromVertices ( const TArray< int >& VerticesIn,
bool bAutoOrient
)

 Construct EdgeLoop from list of vertices of mesh EdgeLoop.h  

bool IsBoundaryLoop ( const FDynamicMesh3* TestMesh
) const

   EdgeLoop.h  

bool IsInternalLoop()

   EdgeLoop.h  

void Reverse()

 Reverse order of vertices and edges in loop EdgeLoop.h  

void SetBowtieVertices ( const TArray< int >& Bowties
)

 Set the bowtie vertices EdgeLoop.h  

bool SetCorrectOrientation()

 If any edges if the loop are on a mesh boundary, we can check that the loop is oriented such that it corresponds with the boundary edges, and if not, reverse it. EdgeLoop.h  

Static

Name Remarks Include Path Unreal Specifiers

static void VertexLoopToEdgeLoop ( const FDynamicMesh3* Mesh,
const TArray< int >& VertexLoop,
TArray< int >& OutEdgeLoop
)

 Utility function to convert a vertex loop to an edge loop EdgeLoop.h  

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