3-D SPH particle system data. More...

#include <jet/sph_system_data3.h>

Inheritance diagram for jet::SphSystemData3:

Public Member Functions
	SphSystemData3 ()
	Constructs empty SPH system. More...

	SphSystemData3 (size_t numberOfParticles)
	Constructs SPH system data with given number of particles. More...

	SphSystemData3 (const SphSystemData3 &other)
	Copy constructor. More...

virtual	~SphSystemData3 ()
	Destructor. More...

void	setRadius (double newRadius) override
	Sets the radius. More...

void	setMass (double newMass) override
	Sets the mass of a particle. More...

ConstArrayAccessor1< double >	densities () const
	Returns the density array accessor (immutable). More...

ArrayAccessor1< double >	densities ()
	Returns the density array accessor (mutable). More...

ConstArrayAccessor1< double >	pressures () const
	Returns the pressure array accessor (immutable). More...

ArrayAccessor1< double >	pressures ()
	Returns the pressure array accessor (mutable). More...

void	updateDensities ()
	Updates the density array with the latest particle positions. More...

void	setTargetDensity (double targetDensity)
	Sets the target density of this particle system. More...

double	targetDensity () const
	Returns the target density of this particle system. More...

void	setTargetSpacing (double spacing)
	Sets the target particle spacing in meters. More...

double	targetSpacing () const
	Returns the target particle spacing in meters. More...

void	setRelativeKernelRadius (double relativeRadius)
	Sets the relative kernel radius. More...

void	setKernelRadius (double kernelRadius)
	Sets the absolute kernel radius. More...

double	relativeKernelRadius () const
	Returns the relative kernel radius. More...

double	kernelRadius () const
	Returns the kernel radius in meters unit. More...

double	sumOfKernelNearby (const Vector3D &position) const
	Returns sum of kernel function evaluation for each nearby particle. More...

double	interpolate (const Vector3D &origin, const ConstArrayAccessor1< double > &values) const
	Returns interpolated value at given origin point. More...

Vector3D	interpolate (const Vector3D &origin, const ConstArrayAccessor1< Vector3D > &values) const
	Returns interpolated vector value at given origin point. More...

Vector3D	gradientAt (size_t i, const ConstArrayAccessor1< double > &values) const
	Returns the gradient of the given values at i-th particle. More...

double	laplacianAt (size_t i, const ConstArrayAccessor1< double > &values) const
	Returns the laplacian of the given values at i-th particle. More...

Vector3D	laplacianAt (size_t i, const ConstArrayAccessor1< Vector3D > &values) const
	Returns the laplacian of the given values at i-th particle. More...

void	buildNeighborSearcher ()
	Builds neighbor searcher with kernel radius. More...

void	buildNeighborLists ()
	Builds neighbor lists with kernel radius. More...

void	serialize (std::vector< uint8_t > *buffer) const override
	Serializes this SPH system data to the buffer. More...

void	deserialize (const std::vector< uint8_t > &buffer) override
	Deserializes this SPH system data from the buffer. More...

void	set (const SphSystemData3 &other)
	Copies from other SPH system data. More...

SphSystemData3 &	operator= (const SphSystemData3 &other)
	Copies from other SPH system data. More...

Public Member Functions inherited from jet::ParticleSystemData3
	ParticleSystemData3 ()
	Default constructor. More...

	ParticleSystemData3 (size_t numberOfParticles)
	Constructs particle system data with given number of particles. More...

	ParticleSystemData3 (const ParticleSystemData3 &other)
	Copy constructor. More...

virtual	~ParticleSystemData3 ()
	Destructor. More...

void	resize (size_t newNumberOfParticles)
	Resizes the number of particles of the container. More...

size_t	numberOfParticles () const
	Returns the number of particles. More...

size_t	addScalarData (double initialVal=0.0)
	Adds a scalar data layer and returns its index. More...

size_t	addVectorData (const Vector3D &initialVal=Vector3D())
	Adds a vector data layer and returns its index. More...

double	radius () const
	Returns the radius of the particles. More...

double	mass () const
	Returns the mass of the particles. More...

ConstArrayAccessor1< Vector3D >	positions () const
	Returns the position array (immutable). More...

ArrayAccessor1< Vector3D >	positions ()
	Returns the position array (mutable). More...

ConstArrayAccessor1< Vector3D >	velocities () const
	Returns the velocity array (immutable). More...

ArrayAccessor1< Vector3D >	velocities ()
	Returns the velocity array (mutable). More...

ConstArrayAccessor1< Vector3D >	forces () const
	Returns the force array (immutable). More...

ArrayAccessor1< Vector3D >	forces ()
	Returns the force array (mutable). More...

ConstArrayAccessor1< double >	scalarDataAt (size_t idx) const
	Returns custom scalar data layer at given index (immutable). More...

ArrayAccessor1< double >	scalarDataAt (size_t idx)
	Returns custom scalar data layer at given index (mutable). More...

ConstArrayAccessor1< Vector3D >	vectorDataAt (size_t idx) const
	Returns custom vector data layer at given index (immutable). More...

ArrayAccessor1< Vector3D >	vectorDataAt (size_t idx)
	Returns custom vector data layer at given index (mutable). More...

void	addParticle (const Vector3D &newPosition, const Vector3D &newVelocity=Vector3D(), const Vector3D &newForce=Vector3D())
	Adds a particle to the data structure. More...

void	addParticles (const ConstArrayAccessor1< Vector3D > &newPositions, const ConstArrayAccessor1< Vector3D > &newVelocities=ConstArrayAccessor1< Vector3D >(), const ConstArrayAccessor1< Vector3D > &newForces=ConstArrayAccessor1< Vector3D >())
	Adds particles to the data structure. More...

const PointNeighborSearcher3Ptr &	neighborSearcher () const
	Returns neighbor searcher. More...

void	setNeighborSearcher (const PointNeighborSearcher3Ptr &newNeighborSearcher)
	Sets neighbor searcher. More...

const std::vector< std::vector< size_t > > &	neighborLists () const
	Returns neighbor lists. More...

void	buildNeighborSearcher (double maxSearchRadius)
	Builds neighbor searcher with given search radius. More...

void	buildNeighborLists (double maxSearchRadius)
	Builds neighbor lists with given search radius. More...

void	set (const ParticleSystemData3 &other)
	Copies from other particle system data. More...

ParticleSystemData3 &	operator= (const ParticleSystemData3 &other)
	Copies from other particle system data. More...

Public Member Functions inherited from jet::Serializable
	Serializable ()=default

virtual	~Serializable ()=default

Additional Inherited Members
Public Types inherited from jet::ParticleSystemData3
typedef Array1< double >	ScalarData
	Scalar data chunk. More...

typedef Array1< Vector3D >	VectorData
	Vector data chunk. More...

Protected Member Functions inherited from jet::ParticleSystemData3
void	serializeParticleSystemData (flatbuffers::FlatBufferBuilder builder, flatbuffers::Offset< fbs::ParticleSystemData3 > fbsParticleSystemData) const

void	deserializeParticleSystemData (const fbs::ParticleSystemData3 *fbsParticleSystemData)

Detailed Description

3-D SPH particle system data.

This class extends ParticleSystemData3 to specialize the data model for SPH. It includes density and pressure array as a default particle attribute, and it also contains SPH utilities such as interpolation operator.

Constructor & Destructor Documentation

◆ SphSystemData3() [1/3]

jet::SphSystemData3::SphSystemData3 ( )

Constructs empty SPH system.

◆ SphSystemData3() [2/3]

jet::SphSystemData3::SphSystemData3 ( size_t numberOfParticles )

explicit

Constructs SPH system data with given number of particles.

◆ SphSystemData3() [3/3]

jet::SphSystemData3::SphSystemData3 ( const SphSystemData3 & other )

Copy constructor.

◆ ~SphSystemData3()

virtual jet::SphSystemData3::~SphSystemData3 ( )

virtual

Destructor.

Member Function Documentation

◆ buildNeighborLists()

void jet::SphSystemData3::buildNeighborLists ( )

Builds neighbor lists with kernel radius.

◆ buildNeighborSearcher()

void jet::SphSystemData3::buildNeighborSearcher ( )

Builds neighbor searcher with kernel radius.

◆ densities() [1/2]

ArrayAccessor1<double> jet::SphSystemData3::densities ( )

Returns the density array accessor (mutable).

◆ densities() [2/2]

ConstArrayAccessor1<double> jet::SphSystemData3::densities ( ) const

Returns the density array accessor (immutable).

◆ deserialize()

void jet::SphSystemData3::deserialize ( const std::vector< uint8_t > & buffer )

overridevirtual

Deserializes this SPH system data from the buffer.

Reimplemented from jet::ParticleSystemData3.

◆ gradientAt()

Vector3D jet::SphSystemData3::gradientAt	(	size_t	i,
		const ConstArrayAccessor1< double > &	values
	)		const

Returns the gradient of the given values at i-th particle.

◆ interpolate() [1/2]

double jet::SphSystemData3::interpolate	(	const Vector3D &	origin,
		const ConstArrayAccessor1< double > &	values
	)		const

Returns interpolated value at given origin point.

Returns interpolated scalar data from the given position using standard SPH weighted average. The data array should match the particle layout. For example, density or pressure arrays can be used.

◆ interpolate() [2/2]

Vector3D jet::SphSystemData3::interpolate	(	const Vector3D &	origin,
		const ConstArrayAccessor1< Vector3D > &	values
	)		const

Returns interpolated vector value at given origin point.

Returns interpolated vector data from the given position using standard SPH weighted average. The data array should match the particle layout. For example, velocity or acceleration arrays can be used.

◆ kernelRadius()

double jet::SphSystemData3::kernelRadius ( ) const

Returns the kernel radius in meters unit.

◆ laplacianAt() [1/2]

double jet::SphSystemData3::laplacianAt	(	size_t	i,
		const ConstArrayAccessor1< double > &	values
	)		const

Returns the laplacian of the given values at i-th particle.

◆ laplacianAt() [2/2]

Vector3D jet::SphSystemData3::laplacianAt	(	size_t	i,
		const ConstArrayAccessor1< Vector3D > &	values
	)		const

Returns the laplacian of the given values at i-th particle.

◆ operator=()

SphSystemData3& jet::SphSystemData3::operator= ( const SphSystemData3 & other )

Copies from other SPH system data.

◆ pressures() [1/2]

ArrayAccessor1<double> jet::SphSystemData3::pressures ( )

Returns the pressure array accessor (mutable).

◆ pressures() [2/2]

ConstArrayAccessor1<double> jet::SphSystemData3::pressures ( ) const

Returns the pressure array accessor (immutable).

◆ relativeKernelRadius()

double jet::SphSystemData3::relativeKernelRadius ( ) const

Returns the relative kernel radius.

Returns the relative kernel radius compared to the target particle spacing (i.e. kernel radius / target spacing).

◆ serialize()

void jet::SphSystemData3::serialize ( std::vector< uint8_t > * buffer ) const

overridevirtual

Serializes this SPH system data to the buffer.

Reimplemented from jet::ParticleSystemData3.

◆ set()

void jet::SphSystemData3::set ( const SphSystemData3 & other )

Copies from other SPH system data.

◆ setKernelRadius()

void jet::SphSystemData3::setKernelRadius ( double kernelRadius )

Sets the absolute kernel radius.

Sets the absolute kernel radius compared to the target particle spacing (i.e. relative kernel radius * target spacing). Once this function is called, hash grid and density should be updated using updateHashGrid() and updateDensities).

◆ setMass()

void jet::SphSystemData3::setMass ( double newMass )

overridevirtual

Sets the mass of a particle.

Setting the mass of a particle will change the target density.

Parameters

[in] newMass The new mass.

Reimplemented from jet::ParticleSystemData3.

◆ setRadius()

void jet::SphSystemData3::setRadius ( double newRadius )

overridevirtual

Sets the radius.

Sets the radius of the particle system. The radius will be interpreted as target spacing.

Reimplemented from jet::ParticleSystemData3.

◆ setRelativeKernelRadius()

void jet::SphSystemData3::setRelativeKernelRadius ( double relativeRadius )

Sets the relative kernel radius.

Sets the relative kernel radius compared to the target particle spacing (i.e. kernel radius / target spacing). Once this function is called, hash grid and density should be updated using updateHashGrid() and updateDensities).

◆ setTargetDensity()

void jet::SphSystemData3::setTargetDensity ( double targetDensity )

Sets the target density of this particle system.

◆ setTargetSpacing()

void jet::SphSystemData3::setTargetSpacing ( double spacing )

Sets the target particle spacing in meters.

Once this function is called, hash grid and density should be updated using updateHashGrid() and updateDensities).

◆ sumOfKernelNearby()

double jet::SphSystemData3::sumOfKernelNearby ( const Vector3D & position ) const

Returns sum of kernel function evaluation for each nearby particle.

◆ targetDensity()

double jet::SphSystemData3::targetDensity ( ) const

Returns the target density of this particle system.

◆ targetSpacing()

double jet::SphSystemData3::targetSpacing ( ) const

Returns the target particle spacing in meters.

◆ updateDensities()

void jet::SphSystemData3::updateDensities ( )

Updates the density array with the latest particle positions.

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

jet/sph_system_data3.h

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SphSystemData3() [1/3]

◆ SphSystemData3() [2/3]

◆ SphSystemData3() [3/3]

◆ ~SphSystemData3()

Member Function Documentation

◆ buildNeighborLists()

◆ buildNeighborSearcher()

◆ densities() [1/2]

◆ densities() [2/2]

◆ deserialize()

◆ gradientAt()

◆ interpolate() [1/2]

◆ interpolate() [2/2]

◆ kernelRadius()

◆ laplacianAt() [1/2]

◆ laplacianAt() [2/2]

◆ operator=()

◆ pressures() [1/2]

◆ pressures() [2/2]

◆ relativeKernelRadius()

◆ serialize()

◆ set()

◆ setKernelRadius()

◆ setMass()

◆ setRadius()

◆ setRelativeKernelRadius()

◆ setTargetDensity()

◆ setTargetSpacing()

◆ sumOfKernelNearby()

◆ targetDensity()

◆ targetSpacing()

◆ updateDensities()