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  3. FTangentTri2

FTangentTri2

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

References

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

Syntax

class FTangentTri2

Variables

  Type Name Description
Public variable FIndex3i EdgeOrientationSign  
Public variable FIndex3i PermutedIndices  
Public variable FIndex3i PermutedTriEIDs  
Public variable FIndex3i PermutedTriVIDs  
Public variable FTriangle2d Tri2d  
Public variable FVector2d[3] Tri2dEdges  
Public variable FVector3d Tri2dLengths  
Public variable int32 Tri3ID  

Constructors

  Type Name Description
Public function    
Public function  

FTangentTri2 ( const FDynamicMesh3& Mesh,
int32 TriID,
int32 PrimaryEdgeID
)

 The PrimaryEdge will be aligned with the x-axis in 2d ( and must be one of the edges of the triangle indicated by TriID)

Functions

  Type Name Description
Public function Const FVector2d

ChangeBasis ( const FVector2d& Vec,
int32 EdgeIndex
)

 Express the vector in terms of a basis that is aligned with the EdgeIndex edge of the triangle.
Public function Const double

DistanceToEdge ( int EdgeIndex,
const FVector2d& Point
)

 EdgeIndex = 0, 1, 2.
Public function Const FVector3d

GetBarycentricCoords ( const FVector2d& PoinInTri2
)

 Barycentric coords for this point in the tri2d.
Public function Const FVector3d

GetBarycentricCoordsInSrcTri ( const FVector2d& PoinInTri2
)

 Convert a point on this tri, to Barycentric coords in the un-rotated source triangle.
Public function Const double

ProjectOnEdge ( int EdgeIndex,
const FVector2d& Point
)

 Closest Point on the edge, given in terms of 0,1 parameter measured along the edge (EdgeIndex = 0, 1, 2)
Public function Const Vector3Type

ReorderVertexDataForSrcTri3d ( const Vector3Type& DataOrderedForTri2d
)

 Convert vertex data ordered for this FTangentTri2 into vertex data ordered for the source 3d triangle.
Public function void

Reset ()

 Reset just invalidates Tri3ID

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