viennals::CalculateNormalVectors< T, D > Class Template Reference

This algorithm is used to compute the normal vectors for all points with level set values <= maxValue (default 0.5). The result is saved in the lsPointData of the lsDomain and can be retrieved with lsDomain.getPointData().getVectorData("Normals"). More...

#include <lsCalculateNormalVectors.hpp>

Public Member Functions
	CalculateNormalVectors ()=default
	CalculateNormalVectors (SmartPointer< Domain< T, D > > passedLevelSet, T passedMaxValue=DEFAULT_MAX_VALUE)
void	setLevelSet (SmartPointer< Domain< T, D > > passedLevelSet)
void	setMaxValue (const T passedMaxValue)
SmartPointer< Domain< T, D > >	getLevelSet () const
T	getMaxValue () const
bool	hasNormalVectors () const
	Check if normal vectors are already calculated for the level set.
void	apply ()

Static Public Attributes
static constexpr char	normalVectorsLabel [] = "Normals"

Detailed Description

template<class T, int D>
class viennals::CalculateNormalVectors< T, D >

This algorithm is used to compute the normal vectors for all points with level set values <= maxValue (default 0.5). The result is saved in the lsPointData of the lsDomain and can be retrieved with lsDomain.getPointData().getVectorData("Normals").

The algorithm uses central differences to compute gradients and normalizes them to unit vectors. Since neighbors in each cartesian direction are necessary for the calculation, the level set width must be >= (maxValue * 4)

• 1. If the level set width is insufficient, it will be automatically expanded.

The calculation is parallelized using OpenMP across level set segments. Normal vectors are computed using finite differences and normalized to unit length. Points with zero gradient magnitude are assigned zero normal vectors.

Constructor & Destructor Documentation

CalculateNormalVectors() [1/2]

template<class T, int D>

viennals::CalculateNormalVectors< T, D >::CalculateNormalVectors ( )

default

CalculateNormalVectors() [2/2]

template<class T, int D>

viennals::CalculateNormalVectors< T, D >::CalculateNormalVectors ( SmartPointer< Domain< T, D > > passedLevelSet, T passedMaxValue = DEFAULT_MAX_VALUE )

inline

Member Function Documentation

apply()

template<class T, int D>

void viennals::CalculateNormalVectors< T, D >::apply ( )

inline

getLevelSet()

template<class T, int D>

SmartPointer< Domain< T, D > > viennals::CalculateNormalVectors< T, D >::getLevelSet ( ) const

inline

getMaxValue()

template<class T, int D>

T viennals::CalculateNormalVectors< T, D >::getMaxValue ( ) const

inline

hasNormalVectors()

template<class T, int D>

bool viennals::CalculateNormalVectors< T, D >::hasNormalVectors ( ) const

inline

Check if normal vectors are already calculated for the level set.

setLevelSet()

template<class T, int D>

void viennals::CalculateNormalVectors< T, D >::setLevelSet ( SmartPointer< Domain< T, D > > passedLevelSet )

inline

setMaxValue()

template<class T, int D>

void viennals::CalculateNormalVectors< T, D >::setMaxValue ( const T passedMaxValue )

inline

Member Data Documentation

normalVectorsLabel

template<class T, int D>

char viennals::CalculateNormalVectors< T, D >::normalVectorsLabel[] = "Normals"

staticconstexpr

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

• include/viennals/lsCalculateNormalVectors.hpp