A domain splitter that uses a level set function to define the domain. More...

#include <level_set_splittor.hpp>

Inheritance diagram for netdem::LevelSetSplittor:

Public Member Functions
	LevelSetSplittor ()
	Default constructor.

void	InitFromSTL (STLModel const &stl_model, int num_ele_each) override
	Initializes the domain splitter from an STL model.

void	InitFromDistanceMap (std::string const &file_name)
	Initializes the domain splitter from a distance map file.

void	InitFromDistanceMap (double corner_x, double corner_y, double corner_z, double sp, int dim_x, int dim_y, int dim_z, const VecXT< double > &dist_list)
	Initializes the domain splitter from a list of distances.

void	GetPeriDigmNodes (VecXT< Vec3d > const nodes, VecXT< double > const node_vols) override
	Gets the nodes and volumes of the discretized domain.

void	MakePorosity (double porosity) override
	Modifies the domain by adding porosity.

STLModel	GetSTLModel () override
	Gets the STL model corresponding to the discretized domain.

STLModel	GetSTLModel (const VecXT< int > &node_indices) override
	Gets the STL model corresponding to a subset of the discretized domain.

Public Member Functions inherited from netdem::DomainSplittor
	DomainSplittor ()
	Default constructor.

virtual void	InitFromSTL (std::string const &stl_file, int num_ele_each)
	Initializes the domain splitter from an STL file.

virtual	~DomainSplittor ()
	Virtual destructor.

Public Member Functions inherited from netdem::LevelSetFunction
	LevelSetFunction ()
	Default constructor.

Vec3d const &	GetCorner () const

double	GetSpacing () const

Vec3i const &	GetDimensions () const

double	GetSignedDistance (int id_x, int id_y, int id_z)
	Get the signed distance value of a certian cell of the grid.

VecXT< VecXT< VecXT< double > > > const &	GetSignedDistanceTable () const

void	SetCorner (double corner_x, double corner_y, double corner_z)
	Set the corner of the grid.

void	SetSpacing (double sp)
	Set the spacing between grid points.

void	SetDimension (double dim_x, double dim_y, double dim_z)
	Set the dimensions of the grid.

void	SetSignedDistance (int id_x, int id_y, int id_z, double sdf)
	Set the signed distance value of a certian cell of the grid.

void	InitFromSDFCalculator (const SDFCalculator &sdf_calculator)
	Initialize from a signed distance field.

double	SignedDistance (Vec3d const &pos) const
	Compute the signed distance at a point in space.

Vec3d	GradientInterpolate (Vec3d const &pos)
	Compute the gradient at a point in space using interpolation.

Vec3d	GradientMinus (int i, int j, int k)
	Compute the gradient at the grid point (i, j, k) using backward differences.

Vec3d	GradientPlus (int i, int j, int k)
	Compute the gradient at the grid point (i, j, k) using forward differences.

void	Reinitialization (int iter, double dt)
	Perform reinitialization to maintain properties of the level set function.

void	Reinitialization ()
	Perform reinitialization with default parameters.

Additional Inherited Members
Protected Attributes inherited from netdem::LevelSetFunction
Vec3d	corner {-0.5, -0.5, -0.5}
	Coordinates of the corner of the grid.

double	spacing {0.05}
	Spacing between grid points.

Vec3i	dim {21, 21, 21}
	Dimensions of the grid.

VecXT< VecXT< VecXT< double > > >	signed_distance_table
	Table containing the signed distance values.

Detailed Description

A domain splitter that uses a level set function to define the domain.

This class extends the DomainSplittor and LevelSetFunction classes to implement a domain splitter that uses a level set function to define the geometry of the domain. The level set function is a scalar field that represents the distance between points in the domain and the boundary of the domain.

Constructor & Destructor Documentation

◆ LevelSetSplittor()

LevelSetSplittor::LevelSetSplittor ( )

Default constructor.

Member Function Documentation

◆ GetPeriDigmNodes()

void LevelSetSplittor::GetPeriDigmNodes	(	VecXT< Vec3d > *const	nodes,
		VecXT< double > *const	node_vols )

overridevirtual

Gets the nodes and volumes of the discretized domain.

This method populates the given arrays with the positions of the nodes and the volumes of the elements in the discretized domain.

Parameters

nodes	A pointer to an array of Vec3d objects to fill with node positions.
node_vols	A pointer to an array of doubles to fill with element volumes.

Implements netdem::DomainSplittor.

◆ GetSTLModel() [1/2]

STLModel LevelSetSplittor::GetSTLModel ( )

overridevirtual

Gets the STL model corresponding to the discretized domain.

This method returns an STL model representing the discretized domain.

Returns: An STLModel object representing the discretized domain.

Implements netdem::DomainSplittor.

◆ GetSTLModel() [2/2]

STLModel LevelSetSplittor::GetSTLModel ( const VecXT< int > & node_indices )

overridevirtual

Gets the STL model corresponding to a subset of the discretized domain.

This method returns an STL model representing a subset of the discretized domain defined by the given indices.

Parameters

node_indices A VecXT<int> object containing the indices of the subset of elements to include in the STL model.

Returns: An STLModel object representing the subset of the discretized domain.

Implements netdem::DomainSplittor.

◆ InitFromDistanceMap() [1/2]

void LevelSetSplittor::InitFromDistanceMap	(	double	corner_x,
		double	corner_y,
		double	corner_z,
		double	sp,
		int	dim_x,
		int	dim_y,
		int	dim_z,
		const VecXT< double > &	dist_list )

Initializes the domain splitter from a list of distances.

This method creates a level set function from a list of distances and uses it to define the geometry of the domain.

Parameters

corner_x	The x coordinate of the corner of the bounding box for the level set function.
corner_y	The y coordinate of the corner of the bounding box for the level set function.
corner_z	The z coordinate of the corner of the bounding box for the level set function.
sp	The spacing between grid points in the level set function.
dim_x	The number of grid points along the x axis of the level set function.
dim_y	The number of grid points along the y axis of the level set function.
dim_z	The number of grid points along the z axis of the level set function.
dist_list	A VecXT<double> object containing the distances to use in the level set function.

◆ InitFromDistanceMap() [2/2]

void LevelSetSplittor::InitFromDistanceMap ( std::string const & file_name )

Initializes the domain splitter from a distance map file.

This method loads a distance map file and creates a level set function to define the geometry of the domain.

Parameters

file_name The path to the distance map file to load.

◆ InitFromSTL()

void LevelSetSplittor::InitFromSTL	(	STLModel const &	stl_model,
		int	num_ele_each )

overridevirtual

Initializes the domain splitter from an STL model.

This method initializes the domain splitter using the given STL model and creates a level set function to define the geometry of the domain.

Parameters

stl_model	The STL model to use as the domain.
num_ele_each	The desired number of elements in each dimension of the split domain.

Implements netdem::DomainSplittor.

◆ MakePorosity()

void LevelSetSplittor::MakePorosity ( double porosity )

overridevirtual

Modifies the domain by adding porosity.

This method modifies the discretized domain by randomly removing elements from it, according to the given porosity value.

Parameters

porosity The desired porosity of the modified domain.

Implements netdem::DomainSplittor.

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

/Users/lzhshou/Documents/Research/myProjects/apaam/repo/netdem/src/peridigm/level_set_splittor.hpp
/Users/lzhshou/Documents/Research/myProjects/apaam/repo/netdem/src/peridigm/level_set_splittor.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ LevelSetSplittor()

Member Function Documentation

◆ GetPeriDigmNodes()

◆ GetSTLModel() [1/2]

◆ GetSTLModel() [2/2]

◆ InitFromDistanceMap() [1/2]

◆ InitFromDistanceMap() [2/2]

◆ InitFromSTL()

◆ MakePorosity()