EBGeometry::MollifyIF< T > Class Template Reference

Mollified implicit function. More...

#include <EBGeometry_Transform.hpp>

Inheritance diagram for EBGeometry::MollifyIF< T >:

Collaboration diagram for EBGeometry::MollifyIF< T >:

Public Member Functions
	MollifyIF ()=delete
	Disallowed weak construction.
	MollifyIF (const MollifyIF &a_other)=default
	Copy constructor.
	MollifyIF (MollifyIF &&a_other) noexcept=default
	Move constructor.
	MollifyIF (const std::shared_ptr< ImplicitFunction< T > > &a_implicitFunction, const std::shared_ptr< ImplicitFunction< T > > &a_mollifier, const T a_maxValue, const size_t a_numPoints) noexcept
	Full constructor.
	~MollifyIF () override=default
	Destructor.
MollifyIF &	operator= (const MollifyIF &a_other)=default
	Copy assignment operator.
MollifyIF &	operator= (MollifyIF &&a_other) noexcept=default
	Move assignment operator.
T	value (const Vec3T< T > &a_point) const noexcept override
	Value function.
Public Member Functions inherited from EBGeometry::ImplicitFunction< T >
	ImplicitFunction ()=default
	Default constructor.
virtual	~ImplicitFunction ()=default
	Default destructor.
T	operator() (const Vec3T< T > &a_point) const noexcept
	Call operator — alternative signature for the value function.
template<class BV >
BV	approximateBoundingVolumeOctree (const Vec3T< T > &a_initialLowCorner, const Vec3T< T > &a_initialHighCorner, const unsigned int a_maxTreeDepth, const T &a_safety=0.0) const
	Compute an approximation to the bounding volume for the implicit surface using octree subdivision.

Protected Attributes
std::shared_ptr< ImplicitFunction< T > >	m_implicitFunction = nullptr
	Original implicit function.
std::shared_ptr< ImplicitFunction< T > >	m_mollifier = nullptr
	Mollifier.
std::vector< std::pair< Vec3T< T >, T > >	m_sampledMollifier
	Mollifier Weights.

Detailed Description

template<class T>
class EBGeometry::MollifyIF< T >

Mollified implicit function.

Convolves the wrapped implicit function with a pre-sampled mollifier kernel (typically a sphere SDF) over a uniform 3-D grid of a_numPoints^3 sample offsets spanning [-a_maxValue, a_maxValue]^3. Weights are normalized to sum to 1.

Template Parameters

T	Floating-point precision

Constructor & Destructor Documentation

MollifyIF() [1/3]

template<class T >

EBGeometry::MollifyIF< T >::MollifyIF ( const MollifyIF< T > &  a_other )

default

Copy constructor.

Parameters

[in]

a_other

Other MollifyIF.

MollifyIF() [2/3]

template<class T >

EBGeometry::MollifyIF< T >::MollifyIF ( MollifyIF< T > &&  a_other )

defaultnoexcept

Move constructor.

Parameters

[in,out]

a_other

Other MollifyIF.

MollifyIF() [3/3]

template<class T >

EBGeometry::MollifyIF< T >::MollifyIF ( const std::shared_ptr< ImplicitFunction< T > > &  a_implicitFunction, const std::shared_ptr< ImplicitFunction< T > > &  a_mollifier, const T  a_maxValue, const size_t  a_numPoints  )

noexcept

Full constructor.

Parameters

[in]	a_implicitFunction	Input implicit function.
[in]	a_mollifier	Mollifier implicit function (e.g. a sphere SDF)
[in]	a_maxValue	Half-width of the sampling region; must be > 0 for any smoothing to occur.
[in]	a_numPoints	Number of sample points per axis; must be >= 2 for any smoothing to occur.

Member Function Documentation

operator=() [1/2]

template<class T >

MollifyIF & EBGeometry::MollifyIF< T >::operator= ( const MollifyIF< T > &  a_other )

default

Copy assignment operator.

Parameters

[in]

a_other

Other MollifyIF.

Returns

Reference to (*this).

operator=() [2/2]

template<class T >

MollifyIF & EBGeometry::MollifyIF< T >::operator= ( MollifyIF< T > &&  a_other )

defaultnoexcept

Move assignment operator.

Parameters

[in,out]

a_other

Other MollifyIF.

Returns

Reference to (*this).

value()

template<class T >

T EBGeometry::MollifyIF< T >::value ( const Vec3T< T > &  a_point ) const

overridevirtualnoexcept

Value function.

Parameters

[in]

a_point

Query point

Returns

Weighted convolution of the wrapped function with the pre-sampled mollifier kernel

Implements EBGeometry::ImplicitFunction< T >.

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

• Source/EBGeometry_Transform.hpp