1. Epic GamesDeveloper
  3. FEdgeLoop

FEdgeLoop

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

API > API/Runtime > API/Runtime/GeometryCore

References

   
Module GeometryCore
Header /Engine/Source/Runtime/GeometryCore/Public/EdgeLoop.h
Include #include "EdgeLoop.h"

Syntax

class FEdgeLoop

Remarks

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

Variables

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

Constructors

  Type Name Description
Public function    
Public function  

FEdgeLoop ( const FDynamicMesh3* mesh
)

  
Public function  

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

 Initialize EdgeLoop with the given vertices and edges

Functions

  Type Name Description
Public function void Populate the BowtieVertices member
Public function Const bool Exhaustively check that verts and edges of this EdgeLoop are consistent. This is quite expensive.
Public function Const int

FindNearestVertexIndex ( const FVector3d& QueryPoint
)

  
Public function Const int

FindVertexIndex ( int VertexID
)

  
Public function Const FAxisAlignedBox3d  
Public function Const int  
Public function Const FVector3d

GetNextVertex ( int32 LoopIndex
)

  
Public function Const FVector3d

GetPrevVertex ( int32 LoopIndex
)

  
Public function Const FVector3d

GetVertex ( int LoopIndex
)

  
Public function Const int  
Public function Const void

GetVertices ( TArray< VecType >& VerticesOut
)

 Add the vertices of the loop to the Vertices array
Public function void

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

 Initialize the loop data
Public function void

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

 Construct an FEdgeLoop from a list of edges of the mesh
Public function void

InitializeFromEdges ( const TArray< int >& EdgesIn
)

 Construct an FEdgeLoop from a list of edges of the mesh
Public function bool

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

 Construct EdgeLoop from list of vertices of mesh
Public function bool

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

 Construct EdgeLoop from list of vertices of mesh
Public function Const bool

IsBoundaryLoop ( const FDynamicMesh3* TestMesh
)

  
Public function Const bool  
Public function void

Reverse ()

 Reverse order of vertices and edges in loop
Public function void

SetBowtieVertices ( const TArray< int >& Bowties
)

 Set the bowtie vertices
Public function bool 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.
Public function Static void

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

 Utility function to convert a vertex loop to an edge loop

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page