#include <DGtal/geometry/surfaces/estimation/IntegralInvariantNormalVectorEstimator.h>

Public Types
typedef Matrix	Argument

typedef Quantity	Value

typedef CovarianceMatrix2NormalDirectionFunctor	Self

Public Member Functions
	CovarianceMatrix2NormalDirectionFunctor ()

	CovarianceMatrix2NormalDirectionFunctor (const Self &)

Self &	operator= (const Self &)

Value	operator() (const Argument &arg) const

Data Fields
Matrix	eigenVectors

RealVector	eigenValues

Detailed Description

template<typename TKSpace, typename TPointPredicate>
struct DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor

This functor extracts the eigenvector associated with the smallest eigenvalue from the given covariance matrix.

Definition at line 156 of file IntegralInvariantNormalVectorEstimator.h.

Member Typedef Documentation

◆ Argument

template<typename TKSpace , typename TPointPredicate >

typedef Matrix DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::Argument

Definition at line 157 of file IntegralInvariantNormalVectorEstimator.h.

◆ Self

template<typename TKSpace , typename TPointPredicate >

typedef CovarianceMatrix2NormalDirectionFunctor DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::Self

Definition at line 159 of file IntegralInvariantNormalVectorEstimator.h.

◆ Value

template<typename TKSpace , typename TPointPredicate >

typedef Quantity DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::Value

Definition at line 158 of file IntegralInvariantNormalVectorEstimator.h.

Constructor & Destructor Documentation

◆ CovarianceMatrix2NormalDirectionFunctor() [1/2]

template<typename TKSpace , typename TPointPredicate >

DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::CovarianceMatrix2NormalDirectionFunctor ( )

inline

Definition at line 160 of file IntegralInvariantNormalVectorEstimator.h.

160{}

◆ CovarianceMatrix2NormalDirectionFunctor() [2/2]

template<typename TKSpace , typename TPointPredicate >

DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::CovarianceMatrix2NormalDirectionFunctor ( const Self & )

inline

Definition at line 161 of file IntegralInvariantNormalVectorEstimator.h.

161{}

Member Function Documentation

◆ operator()()

template<typename TKSpace , typename TPointPredicate >

Value DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::operator() ( const Argument & arg ) const

inline

Definition at line 163 of file IntegralInvariantNormalVectorEstimator.h.

    {
      EigenDecomposition<Space::dimension, Component>
        ::getEigenDecomposition( arg, eigenVectors, eigenValues );
      return eigenVectors.column( 0 ); // normal vector is associated to smallest eigenvalue.      
    }

References DGtal::SimpleMatrix< TComponent, TM, TN >::column(), DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::eigenValues, and DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::eigenVectors.

◆ operator=()

template<typename TKSpace , typename TPointPredicate >

Self & DGtal::deprecated::IntegralInvariantNormalVectorEstimator< TKSpace, TPointPredicate >::CovarianceMatrix2NormalDirectionFunctor::operator= ( const Self & )

inline

Definition at line 162 of file IntegralInvariantNormalVectorEstimator.h.

162{ return *this; }