UE::Geometry::TVectorSetAnalysis3< RealType > Class Template Reference

#include <VectorSetAnalysis.h>

Public Member Functions
template<typename EnumerableIDType >
void	Initialize (EnumerableIDType EnumerableIDs, TFunctionRef< TVector< RealType >(int32)> GetVectorFunc, int32 NumVectorsHint=0, bool bIsNormalizedHint=false)
int32	NumVectors () const
int32	NumClusters () const
void	GreedyClusterVectors (RealType AngleToleranceDeg)

Public Attributes
TArray< TVector< RealType > >	Vectors
TArray< int32 >	VectorIDs
bool	bNormalized = false
TArray< TVector< RealType > >	ClusterVectors
TArray< int32 >	VectorToClusterMap

Detailed Description

template<typename RealType>
class UE::Geometry::TVectorSetAnalysis3< RealType >

TVectorSetAnalysis3 computes various analyses of a set of input Vectors (currently mainly clustering.

Member Function Documentation

GreedyClusterVectors()

template<typename RealType >

void UE::Geometry::TVectorSetAnalysis3< RealType >::GreedyClusterVectors ( RealType  AngleToleranceDeg )

inline

Run simple greedy clustering algorithm on input ClusterVectors. Done in a single pass over vectors, each successive Vector is either grouped with one of the existing clusters if it's direction is within AngleToleranceDeg, or creates a new cluster.

Initialize()

template<typename RealType >

template<typename EnumerableIDType >

void UE::Geometry::TVectorSetAnalysis3< RealType >::Initialize ( EnumerableIDType  EnumerableIDs, TFunctionRef< TVector< RealType >(int32)>  GetVectorFunc, int32  NumVectorsHint = 0, bool  bIsNormalizedHint = false  )

inline

Initialize the internal set of Vectors and IDs using an external integer-Enumerable and associated GetVector(ID) function

Parameters

NumVectorsHint	provide hint as to number of elements in Enumerable, to allow memory to be pre-allocated
bIsNormalizedHint	indicate whether vectors are normalized

NumClusters()

template<typename RealType >

int32 UE::Geometry::TVectorSetAnalysis3< RealType >::NumClusters ( ) const

inline

Returns

number of clusters found by last clustering algorithm (may be zero if not initialized)

NumVectors()

template<typename RealType >

int32 UE::Geometry::TVectorSetAnalysis3< RealType >::NumVectors ( ) const

inline

Returns

number of input vectors

Member Data Documentation

bNormalized

template<typename RealType >

bool UE::Geometry::TVectorSetAnalysis3< RealType >::bNormalized = false

ClusterVectors

template<typename RealType >

TArray<TVector<RealType> > UE::Geometry::TVectorSetAnalysis3< RealType >::ClusterVectors

Set of vectors that represent centers of clusters

VectorIDs

template<typename RealType >

TArray<int32> UE::Geometry::TVectorSetAnalysis3< RealType >::VectorIDs

Vectors

template<typename RealType >

TArray<TVector<RealType> > UE::Geometry::TVectorSetAnalysis3< RealType >::Vectors

VectorToClusterMap

template<typename RealType >

TArray<int32> UE::Geometry::TVectorSetAnalysis3< RealType >::VectorToClusterMap

Mapping from Vector index to ClusterVectors index

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The documentation for this class was generated from the following file:

• Engine/Source/Runtime/GeometryCore/Public/Sampling/VectorSetAnalysis.h