collision.hpp File Reference

#include "config/config.hpp"
#include "cell_system/CellStructure.hpp"
#include "BondList.hpp"
#include "Particle.hpp"

Include dependency graph for collision.hpp:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
class	Collision_parameters

Enumerations
enum class	CollisionModeType : int {   OFF = 0 , BIND_CENTERS = 1 , BIND_VS = 2 , GLUE_TO_SURF = 3 ,   BIND_THREE_PARTICLES = 4 }
	Protocols for collision handling. More...

Functions
void	prepare_local_collision_queue ()
void	handle_collisions (CellStructure &cell_structure)
	Handle the collisions recorded in the queue.
void	queue_collision (int part1, int part2)
	Add the collision between the given particle ids to the collision queue.
bool	glue_to_surface_criterion (Particle const &p1, Particle const &p2)
	Check additional criteria for the glue_to_surface collision mode.
void	detect_collision (Particle const &p1, Particle const &p2, double const dist2)
	Detect (and queue) a collision between the given particles.
double	collision_detection_cutoff ()

Variables
Collision_parameters	collision_params
	Parameters for collision detection.

Enumeration Type Documentation

CollisionModeType

enum class CollisionModeType : int

strong

Protocols for collision handling.

Enumerator
OFF	Deactivate collision detection.
BIND_CENTERS	Create bond between centers of colliding particles.
BIND_VS	Create a bond between the centers of the colliding particles, plus two virtual sites at the point of collision and bind them together. This prevents the particles from sliding against each other. Requires VIRTUAL_SITES_RELATIVE.
GLUE_TO_SURF	Glue a particle to a specific spot on another particle.
BIND_THREE_PARTICLES	Three particle binding mode.

Definition at line 30 of file collision.hpp.

Function Documentation

collision_detection_cutoff()

double collision_detection_cutoff ( )

inline

Definition at line 154 of file collision.hpp.

References collision_params, Collision_parameters::distance, Collision_parameters::mode, and OFF.

Referenced by System::System::calculate_forces(), and System::System::maximal_cutoff().

detect_collision()

void detect_collision ( Particle const &  p1, Particle const &  p2, double const  dist2  )

inline

Detect (and queue) a collision between the given particles.

Definition at line 120 of file collision.hpp.

References Collision_parameters::bond_centers, Particle::bonds(), collision_params, Collision_parameters::distance2, GLUE_TO_SURF, glue_to_surface_criterion(), Particle::id(), Particle::is_ghost(), Particle::is_virtual(), Collision_parameters::mode, pair_bond_exists_on(), and queue_collision().

Referenced by System::System::calculate_forces().

glue_to_surface_criterion()

bool glue_to_surface_criterion ( Particle const &  p1, Particle const &  p2  )

inline

Check additional criteria for the glue_to_surface collision mode.

Definition at line 112 of file collision.hpp.

References collision_params, Collision_parameters::part_type_to_attach_vs_to, Collision_parameters::part_type_to_be_glued, and Particle::type().

Referenced by detect_collision().

handle_collisions()

void handle_collisions

(

CellStructure &

cell_structure

)

Handle the collisions recorded in the queue.

Definition at line 482 of file collision.cpp.

References Utils::Mpi::all_compare(), bind_at_poc_create_bond_between_vs(), bind_at_point_of_collision_calc_vs_pos(), bind_centers(), BIND_THREE_PARTICLES, BIND_VS, Collision_parameters::bond_centers, Particle::bonds(), collision_params, comm_cart, Cells::DATA_PART_BONDS, Cells::DATA_PART_PROPERTIES, gather_global_collision_queue(), CellStructure::get_local_particle(), CellStructure::get_max_local_particle_id(), anonymous_namespace{collision.cpp}::get_part(), System::get_system(), GLUE_TO_SURF, glue_to_surface_bind_part_to_vs(), glue_to_surface_calc_vs_pos(), Particle::id(), Particle::is_ghost(), local_collision_queue, Collision_parameters::mode, Collision_parameters::part_type_after_glueing, Collision_parameters::part_type_to_be_glued, place_vs_and_relate_to_particle(), pos, Cells::RESORT_GLOBAL, Particle::set_can_rotate_all_axes(), CellStructure::set_resort_particles(), three_particle_binding_domain_decomposition(), Particle::type(), and CellStructure::update_ghosts_and_resort_particle().

Referenced by System::System::integrate().

prepare_local_collision_queue()

void prepare_local_collision_queue

(

)

Definition at line 234 of file collision.cpp.

References local_collision_queue.

Referenced by System::System::calculate_forces().

queue_collision()

void queue_collision	(	int	part1,
		int	part2
	)

Add the collision between the given particle ids to the collision queue.

Definition at line 236 of file collision.cpp.

References local_collision_queue.

Referenced by detect_collision().

Variable Documentation

collision_params

Collision_parameters collision_params

extern

Parameters for collision detection.

Definition at line 73 of file collision.cpp.

Referenced by bind_at_poc_create_bond_between_vs(), bind_at_point_of_collision_calc_vs_pos(), bind_centers(), System::System::calculate_forces(), coldet_do_three_particle_bond(), collision_detection_cutoff(), ScriptInterface::CollisionDetection::CollisionDetection::CollisionDetection(), detect_collision(), ScriptInterface::CollisionDetection::CollisionDetection::do_call_method(), System::System::get_global_ghost_flags(), glue_to_surface_bind_part_to_vs(), glue_to_surface_calc_vs_pos(), glue_to_surface_criterion(), handle_collisions(), Collision_parameters::initialize(), and place_vs_and_relate_to_particle().