FSimpleIntrinsicMesh | Unreal Engine 5.2 Documentation

API > API/Plugins > API/Plugins/DynamicMesh > API/Plugins/DynamicMesh/Operations

Inheritance Hierarchy

References


Module	DynamicMesh
Header	/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/IntrinsicTriangulationMesh.h
Include	#include "Operations/IntrinsicTriangulationMesh.h"

Syntax

class FSimpleIntrinsicMesh : public UE::Geometry::FSimpleIntrinsicEdgeFlipMesh

Remarks

FSimpleIntrinsicMesh extends FSimpleIntrinsicEdgeFlipMesh to support edge splits and triangle pokes in addition to edge flips. The surface mesh vertices will be a subset of the intrinsic mesh vertex set.

This is intended as a base class for more sophisticated intrinsic mesh classes, as it does not explicitly track the topology changes relative to the original surface mesh. For example it does not record the locations on the surface mesh of any new intrinsic vertices or the locations of intrinsic mesh edge intersections with the surface mesh edges.

FIntrinsicMesh and FIntrinsicTriangulation are derived from this class and each maintain their own connection with the surface mesh ( "normal coordinates" or "signpost data") that can track these surface mesh locations and can be used to reconstruct paths (e.g. intrinsic edges) on the surface mesh.

Constructors

	Type	Name	Description
		FSimpleIntrinsicMesh ()
		FSimpleIntrinsicMesh ( const FDynamicMesh3& SrcMesh )	Constructor does ID-matching deep copy the basic mesh topology (but no attributes or groups)
		FSimpleIntrinsicMesh ( const FSimpleIntrinsicMesh& )

Functions

Type	Name	Description
int32	AddEdgeInternal ( int32 vA, int32 vB, int32 tA, int32 tB )	Add new edge to the mesh topology, does not update any of the intrinsic quantities
int32	AddTriangleInternal ( int32 a, int32 b, int32 c, int32 e0, int32 e1, int32 e2 )	Add new triangle to the mesh topology, does not update any of the intrinsic quantities
void	AllocateEdgesList ( int32 VertexID )	Allocate, or clear existing edge list for specified vertex
int32	AppendVertex ( const FVector3d& vPos )	Add new vertex to the mesh topology, does not update any of the intrinsic quantities
EMeshResult	PokeTriangle ( int32 TID, const FVector3d& BaryCoordinates, FPokeTriangleInfo& PokeInfo )	Insert a new vertex inside an intrinsic triangle, ie do a 1 to 3 triangle split
EMeshResult	PokeTriangleTopology ( int32 TID, FPokeTriangleInfo& PokeInfo )	Updates the mesh connectivity by adding a new vertex at the vertex-averaged location.
EMeshResult	SplitEdge ( int32 EdgeAB, FEdgeSplitInfo& SplitInfo, double SplitParameterT )	Split an intrinsic edge of the mesh by inserting a vertex.
EMeshResult	SplitEdgeTopology ( int32 EdgeAB, FEdgeSplitInfo& SplitInfo )	Updates the mesh connectivity by adding a new vertex at the vertex-averaged location.