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TMeshQueries

API > API/Runtime > API/Runtime/GeometryCore

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

Syntax

template<class TriangleMeshType>  
class TMeshQueries

Constructors

Name Remarks Include Path Unreal Specifiers

TMeshQueries()

   MeshQueries.h  

Functions

Public

Static

Name Remarks Include Path Unreal Specifiers

static double AverageEdgeLength ( const TriangleMeshType& Mesh
)

 Compute the mean edge length for the given mesh. MeshQueries.h  

static void EdgeLengthStats ( const TriangleMeshType& Mesh,
double& MinEdgeLength,
double& MaxEdgeLength,
double& AverageEdgeLength,
int NumSamples
)

 Compute the min, max, and mean edge lengths for the given mesh. MeshQueries.h  

static void EdgeLengthStatsFromEdges ( const TriangleMeshType& Mesh,
const TArray< int >& Edges,
double& MinEdgeLength,
double& MaxEdgeLength,
double& AverageEdgeLength
)

 Given a mesh and a subset of mesh edges, compute the min, max, and mean edge lengths. MeshQueries.h  

static void ExpandVertexSelectionToNeighbors ( const TriangleMeshType& Mesh,
const TArray< int32 >& Selection,
TArray< int32 >& ExpandedSelection,
TMap< int32, int32 >& VIDToExpandedSelectionIdx
)

 Expand selection of vertices with one-ring neighbors. MeshQueries.h  

static int FindHitTriangle_LinearSearch ( const TriangleMeshType& Mesh,
const FRay3d& Ray
)

 Brute force search for nearest triangle intersection MeshQueries.h  

static void FindHitTriangles_LinearSearch ( const TriangleMeshType& Mesh,
const FRay3d& Ray,
TArray< TPair< float, int > >& SortedHitTriangles
)

 Brute force search for all triangle intersections, sorted MeshQueries.h  

static FIndex2i FindIntersectingTriangles_LinearSearch ( const TriangleMeshType& Mesh1,
const TriangleMeshType& Mesh2
)

 Brute force search for any intersecting triangles on two meshes MeshQueries.h  

static FVector3d FindNearestPoint_LinearSearch ( const TriangleMeshType& Mesh,
const FVector3d& P
)

   MeshQueries.h  

static int FindNearestTriangle_LinearSearch ( const TriangleMeshType& Mesh,
const FVector3d& P
)

 Brute force search for nearest triangle to Point MeshQueries.h  

static void GetAllEdgeLengths ( const TriangleMeshType& Mesh,
TArray< double >& Lengths,
double& TotalLength
)

 Compute the length for each edge and return the result as an array of Mesh.MaxEdgeID() size. MeshQueries.h  

static FAxisAlignedBox3d GetBounds ( const TriangleMeshType& Mesh
)

   MeshQueries.h  

static FVector3d GetMeshVerticesCentroid ( const TriangleMeshType& Mesh
)

 Get the average of the mesh vertices. MeshQueries.h  

static FAxisAlignedBox3d GetTrianglesBounds ( const TriangleMeshType& Mesh,
const EnumerableTriListType& Triangles,
const FTransform& Transform
)

   MeshQueries.h  

static FAxisAlignedBox3d GetTriBounds ( const TriangleMeshType& Mesh,
int TID
)

   MeshQueries.h  

static FVector3d GetTriCentroid ( const TriangleMeshType& Mesh,
int TriIdx
)

 Compute triangle centroid MeshQueries.h  

static void GetTriNormalAreaCentroid ( const TriangleMeshType& Mesh,
int TriIdx,
FVector3d& Normal,
double& Area,
FVector3d& Centroid
)

 Compute the normal, area, and centroid of a triangle all together MeshQueries.h  

static TArray< int32 > GetVertexSelectedTriangles ( const TriangleMeshType& Mesh,
const TArray< int32 >& Vertices
)

 Get triangles that contain at least on vertex in the Vertices array. MeshQueries.h  

static FVector3d GetVertexWeightsOnTriangle ( const TriangleMeshType& Mesh,
int TriID,
double TriArea,
bool bWeightByArea,
bool bWeightByAngle
)

 Retrieve the area and/or angle weights for each vertex of a triangle. MeshQueries.h  

static FAxisAlignedBox3d GetVerticesBounds ( const TriangleMeshType& Mesh,
const EnumerableTriListType& Vertices,
const FTransform& Transform
)

   MeshQueries.h  

static FVector2d GetVolumeArea ( const TriangleMeshType& Mesh,
const TArray< int >& TriIndices
)

   MeshQueries.h  

static FVector2d GetVolumeArea ( const TriangleMeshType& Mesh
)

   MeshQueries.h  

static FVector2d GetVolumeAreaCenter ( const TriangleMeshType& Mesh,
FVector3d& OutCenterOfMass
)

   MeshQueries.h  

static double GetVolumeNonWatertight ( const TriangleMeshType& Mesh,
double DimScaleFactor
)

 Get the volume of a mesh using a method that is more robust to inputs with holes MeshQueries.h  

static double HausdorffDistance ( const TriangleMeshType& MeshA,
const MeshSpatialType& SpatialB
)

 Compute all vertex-to-surface distances in parallel. MeshQueries.h  

static double HausdorffDistanceSerial ( const TriangleMeshType& MeshA,
const MeshSpatialType& SpatialB
)

 Compute all distances in serial, then a serial raw loop to find max. MeshQueries.h  

static double MaxEdgeLength ( const TriangleMeshType& Mesh
)

 Compute the longest edge length for the given mesh. MeshQueries.h  

static void MeshDistanceStatistics ( const TriangleMeshType& MeshA,
const MeshSpatialType& SpatialB,
const TriangleMeshType* MeshB,
const MeshSpatialType* SpatialA,
bool bSymmetric,
double& MaxDistance,
double& MinDistance,
double& AverageDistance,
double& RootMeanSqrDeviation
)

 Compute various statistics on distances between two meshes MeshQueries.h  

static double MinEdgeLength ( const TriangleMeshType& Mesh
)

 Compute the shortest edge length for the given mesh. MeshQueries.h  

static FIntrRay3Triangle3d RayTriangleIntersection ( const TriangleMeshType& Mesh,
int TriIdx,
const RayType& Ray
)

 Convenience function to construct a IntrRay3Triangle3 object for a Mesh triangle MeshQueries.h  

static double TotalEdgeLength ( const TriangleMeshType& Mesh,
const TArray< int >& Edges
)

 Given a mesh and a subset of mesh edges, compute the total length of all the edges. MeshQueries.h  

static FDistPoint3Triangle3d TriangleDistance ( const TriangleMeshType& Mesh,
int TriIdx,
FVector3d Point
)

 Construct a DistPoint3Triangle3 object for a Mesh triangle MeshQueries.h  

static FIntrRay3Triangle3d TriangleIntersection ( const TriangleMeshType& Mesh,
int TriIdx,
const FRay3d& Ray
)

 Convenience function to construct a IntrRay3Triangle3 object for a Mesh triangle MeshQueries.h  

static double TriDistanceSqr ( const TriangleMeshType& Mesh,
int TriIdx,
const FVector3d& Point
)

 Compute distance from Point to triangle in Mesh, with minimal extra objects/etc MeshQueries.h  

static double TwoSidedHausdorffDistance ( const TriangleMeshType& MeshA,
const MeshSpatialType& SpatialA,
const TriangleMeshType& MeshB,
const MeshSpatialType& SpatialB
)

 Because Hausdorff distance is not symmetric, we compute the maximum of the distances between two surfaces. MeshQueries.h  

static double TwoSidedHausdorffDistanceSerial ( const TriangleMeshType& MeshA,
const MeshSpatialType& SpatialA,
const TriangleMeshType& MeshB,
const MeshSpatialType& SpatialB
)

   MeshQueries.h  

static void VertexToSurfaceDistances ( const TriangleMeshType& MeshA,
const MeshSpatialType& SpatialB,
TArray< double >& Distances
)

 For each vertex on MeshA, compute the distance to the nearest point on the surface contained in SpatialB. MeshQueries.h  

static void VertexToSurfaceDistancesSerial ( const TriangleMeshType& MeshA,
const MeshSpatialType& SpatialB,
TArray< double >& Distances
)

 Compute all vertex-to-surface distances in serial. Should only be used for debugging the parallel version above! MeshQueries.h  

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