Solver for triangle mesh and wall contacts using boolean operations. More...

#include <solver_boolean_pw.hpp>

Inheritance diagram for netdem::SolverBooleanPW:

Public Member Functions
	SolverBooleanPW ()
	Default constructor for SolverBooleanPW.

	SolverBooleanPW (Particle const p, Wall const w)
	Constructor for SolverBooleanPW.

CollisionSolverPW *	Clone () const override
	Creates a copy of this collision solver.

void	Init (Particle const p, Wall const w) override
	Initializes the collision solver with a particle and a wall.

bool	Detect () override
	Detects collisions between a particle and a wall using boolean operations on their triangle meshes.

void	ResolveInit (ContactPW *const cnt, double timestep) override
	Initializes the contact point between a particle and a wall at time t = 0.

void	ResolveUpdate (ContactPW *const cnt, double timestep) override
	Updates the contact point between a particle and a wall at time t > 0.

void	ResolveInit (CollisionGeometries *const cnt_geoms, double timestep, const VecXT< Vec3d > &vertices, const VecXT< Vec3i > &facets, const VecXT< int > &facets_of_1or2)
	Initializes the contact geometries between a particle and a wall at time t = 0.

void	ResolveUpdate (CollisionGeometries *const cnt_geoms, double timestep, const VecXT< Vec3d > &vertices, const VecXT< Vec3i > &facets, const VecXT< int > &facets_of_1or2)
	Updates the contact geometries between a particle and a wall at time t > 0.

void	ResolveInit_Equivalent (CollisionGeometries *const cnt_geoms, double timestep)
	Initializes the contact geometries between two equivalent shapes at time t = 0.

void	ResolveUpdate_Equivalent (CollisionGeometries *const cnt_geoms, double timestep)
	Updates the contact geometries between two equivalent shapes at time t > 0.

STLModel	GetContactTriMesh (int id)
	Returns an STL model of the contact triangle mesh for a given component.

Public Member Functions inherited from netdem::CollisionSolverPW
	CollisionSolverPW ()

	CollisionSolverPW (Particle const p, Wall const w)

virtual bool	Detect (ContactPW *const cnt)

virtual	~CollisionSolverPW ()

Protected Member Functions
void	ClearIntersectInfo ()
	Clears the intersection information between the two triangle meshes.

void	SeperateComponents ()
	Separates the intersection components in the triangle mesh into separate lists.

Protected Member Functions inherited from netdem::CollisionSolverPW
void	InitBasicGeoms (CollisionGeometries *const cnt_geoms, double timestep)

void	UpdateBasicGeoms (CollisionGeometries *const cnt_geoms, double timestep, Vec3d const &dir_n_old)

Protected Attributes
double	bound_sphere_radius_1
	< The radius of the bounding sphere for the first STL model.

double	bound_sphere_radius_2

Vec3d	dpos_12
	Pointer to the first STLModel object.

STLModel *	stl_model_1 {nullptr}
	Pointer to the second STLModel object.

STLModel *	stl_model_2 {nullptr}
	List of intersection vertices.

VecXT< Vec3d >	vertices_isct
	List of intersection facets.

VecXT< Vec3i >	facets_isct
	List of birth IDs for each intersection facet.

VecXT< int >	facets_birth_ids
	List of components (connected sets of facets) for each STL model.

VecXT< VecXT< Vec3i > >	comp_facets_list

VecXT< VecXT< int > >	comp_facets_of_1or2_list

Additional Inherited Members
Public Attributes inherited from netdem::CollisionSolverPW
Particle *	particle {nullptr}

Wall *	wall {nullptr}

Detailed Description

Solver for triangle mesh and wall contacts using boolean operations.

Examples: 00_gen_dataset_trimesh_plane.cpp, 01_test_dataset_trimesh_plane.cpp, and 06_test_ann_vs_geom_trimesh_plane.cpp.

Constructor & Destructor Documentation

◆ SolverBooleanPW() [1/2]

netdem::SolverBooleanPW::SolverBooleanPW ( )

Default constructor for SolverBooleanPW.

◆ SolverBooleanPW() [2/2]

netdem::SolverBooleanPW::SolverBooleanPW	(	Particle *const	p,
		Wall *const	w )

Constructor for SolverBooleanPW.

Parameters

p	The particle to check for collisions against the wall.
w	The wall to check for collisions against the particle.

Member Function Documentation

◆ ClearIntersectInfo()

void netdem::SolverBooleanPW::ClearIntersectInfo ( )

protected

Clears the intersection information between the two triangle meshes.

◆ Clone()

CollisionSolverPW * netdem::SolverBooleanPW::Clone ( ) const

overridevirtual

Creates a copy of this collision solver.

Returns: A new instance of the collision solver.

Implements netdem::CollisionSolverPW.

◆ Detect()

bool netdem::SolverBooleanPW::Detect ( )

overridevirtual

Detects collisions between a particle and a wall using boolean operations on their triangle meshes.

Returns: True if a collision occurred, false otherwise.

Implements netdem::CollisionSolverPW.

Examples: 00_gen_dataset_trimesh_plane.cpp, 01_test_dataset_trimesh_plane.cpp, and 06_test_ann_vs_geom_trimesh_plane.cpp.

◆ GetContactTriMesh()

STLModel netdem::SolverBooleanPW::GetContactTriMesh ( int id )

Returns an STL model of the contact triangle mesh for a given component.

Parameters

id	The ID of the component.

Returns: The STL model of the contact triangle mesh.

◆ Init()

void netdem::SolverBooleanPW::Init	(	Particle *const	p,
		Wall *const	w )

overridevirtual

Initializes the collision solver with a particle and a wall.

Parameters

p	The particle to check for collisions against the wall.
w	The wall to check for collisions against the particle.

Reimplemented from netdem::CollisionSolverPW.

Examples: 00_gen_dataset_trimesh_plane.cpp, 01_test_dataset_trimesh_plane.cpp, and 06_test_ann_vs_geom_trimesh_plane.cpp.

◆ ResolveInit() [1/2]

void netdem::SolverBooleanPW::ResolveInit	(	CollisionGeometries *const	cnt_geoms,
		double	timestep,
		const VecXT< Vec3d > &	vertices,
		const VecXT< Vec3i > &	facets,
		const VecXT< int > &	facets_of_1or2 )

Initializes the contact geometries between a particle and a wall at time t = 0.

Parameters

cnt_geoms	The contact geometries.
timestep	The simulation timestep.
vertices	The vector of vertices defining the triangle mesh.
facets	The vector of facets defining the triangle mesh.
facets_of_1or2	A vector indicating whether each facet is from the particle or the wall.

◆ ResolveInit() [2/2]

void netdem::SolverBooleanPW::ResolveInit	(	ContactPW *const	cnt,
		double	timestep )

overridevirtual

Initializes the contact point between a particle and a wall at time t = 0.

Parameters

cnt	The contact point.
timestep	The simulation timestep.

Implements netdem::CollisionSolverPW.

Examples: 00_gen_dataset_trimesh_plane.cpp, 01_test_dataset_trimesh_plane.cpp, and 06_test_ann_vs_geom_trimesh_plane.cpp.

◆ ResolveInit_Equivalent()

void netdem::SolverBooleanPW::ResolveInit_Equivalent	(	CollisionGeometries *const	cnt_geoms,
		double	timestep )

Initializes the contact geometries between two equivalent shapes at time t = 0.

Parameters

cnt_geoms	The contact geometries.
timestep	The simulation timestep.

◆ ResolveUpdate() [1/2]

void netdem::SolverBooleanPW::ResolveUpdate	(	CollisionGeometries *const	cnt_geoms,
		double	timestep,
		const VecXT< Vec3d > &	vertices,
		const VecXT< Vec3i > &	facets,
		const VecXT< int > &	facets_of_1or2 )

Updates the contact geometries between a particle and a wall at time t > 0.

Parameters

cnt_geoms	The contact geometries.
timestep	The simulation timestep.
vertices	The vector of vertices defining the triangle mesh.
facets	The vector of facets defining the triangle mesh.
facets_of_1or2	A vector indicating whether each facet is from the particle or the wall.

◆ ResolveUpdate() [2/2]

void netdem::SolverBooleanPW::ResolveUpdate	(	ContactPW *const	cnt,
		double	timestep )

overridevirtual

Updates the contact point between a particle and a wall at time t > 0.

Parameters

cnt	The contact point.
timestep	The simulation timestep.

Implements netdem::CollisionSolverPW.

◆ ResolveUpdate_Equivalent()

void netdem::SolverBooleanPW::ResolveUpdate_Equivalent	(	CollisionGeometries *const	cnt_geoms,
		double	timestep )

Updates the contact geometries between two equivalent shapes at time t > 0.

Parameters

cnt_geoms	The contact geometries.
timestep	The simulation timestep.

◆ SeperateComponents()

void netdem::SolverBooleanPW::SeperateComponents ( )

protected

Separates the intersection components in the triangle mesh into separate lists.

Member Data Documentation

◆ bound_sphere_radius_1

double netdem::SolverBooleanPW::bound_sphere_radius_1

protected

< The radius of the bounding sphere for the first STL model.

The radius of the bounding sphere for the second STL model.

◆ bound_sphere_radius_2

double netdem::SolverBooleanPW::bound_sphere_radius_2

protected

The relative position vector between the centers of the two bounding spheres.

◆ comp_facets_list

VecXT<VecXT<Vec3i> > netdem::SolverBooleanPW::comp_facets_list

protected

List of components containing facets from either the first or second STL model.

◆ comp_facets_of_1or2_list

VecXT<VecXT<int> > netdem::SolverBooleanPW::comp_facets_of_1or2_list

protected

◆ dpos_12

Vec3d netdem::SolverBooleanPW::dpos_12

protected

Pointer to the first STLModel object.

◆ facets_birth_ids

VecXT<int> netdem::SolverBooleanPW::facets_birth_ids

protected

List of components (connected sets of facets) for each STL model.

◆ facets_isct

VecXT<Vec3i> netdem::SolverBooleanPW::facets_isct

protected

List of birth IDs for each intersection facet.

◆ stl_model_1

STLModel* netdem::SolverBooleanPW::stl_model_1 {nullptr}

protected

Pointer to the second STLModel object.

◆ stl_model_2

STLModel* netdem::SolverBooleanPW::stl_model_2 {nullptr}

protected

List of intersection vertices.

◆ vertices_isct

VecXT<Vec3d> netdem::SolverBooleanPW::vertices_isct

protected

List of intersection facets.

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

/Users/lzhshou/Documents/Research/myProjects/apaam/repo/netdem/src/dem/solver_boolean_pw.hpp
/Users/lzhshou/Documents/Research/myProjects/apaam/repo/netdem/src/dem/solver_boolean_pw.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SolverBooleanPW() [1/2]

◆ SolverBooleanPW() [2/2]

Member Function Documentation

◆ ClearIntersectInfo()

◆ Clone()

◆ Detect()

◆ GetContactTriMesh()

◆ Init()

◆ ResolveInit() [1/2]

◆ ResolveInit() [2/2]

◆ ResolveInit_Equivalent()

◆ ResolveUpdate() [1/2]

◆ ResolveUpdate() [2/2]

◆ ResolveUpdate_Equivalent()

◆ SeperateComponents()

Member Data Documentation

◆ bound_sphere_radius_1

◆ bound_sphere_radius_2

◆ comp_facets_list

◆ comp_facets_of_1or2_list

◆ dpos_12

◆ facets_birth_ids

◆ facets_isct

◆ stl_model_1

◆ stl_model_2

◆ vertices_isct