smash::ModusDefault Class Reference

#include <modusdefault.h>

Base class for Modus classes that provides default function implementations.

This is only a base class for actual Modus classes. Meaning there will never be objects, references, or pointers to ModusDefault. Therefore, it does not have - and will never need any virtual functions.

The rules for adding functions to this class are as follows:

• This class is empty per default.
• You can add a function if you have a function that is different in at least one subclass.
• Code that is common to all goes into ExperimentImplementation.

Todo:

JB: many of these functions could/should be virtual (contradicts description given above, Vinzent says (in a nice way): does not make any sense whatsoever anyway)

Definition at line 44 of file modusdefault.h.

Inheritance diagram for smash::ModusDefault:

Classes
struct	BadInput
	BadInput is an error to throw if the configuration options are invalid. More...
struct	InvalidEnergy
	Thrown when the requested energy is smaller than the masses of two particles. More...

Public Member Functions
int	impose_boundary_conditions (Particles *, const OutputsList &={})
	Enforces sensible positions for the particles. More...
int	total_N_number () const
int	proj_N_number () const
bool	cll_in_nucleus () const
bool	is_collider () const
bool	is_list () const
double	impact_parameter () const
double	velocity_projectile () const
double	velocity_target () const
FermiMotion	fermi_motion () const
double	max_timestep (double) const
double	length () const
double	nuclei_passing_time () const
	Get the passing time of the two nuclei in a collision. More...
Grid< GridOptions::Normal >	create_grid (const Particles &particles, double min_cell_length, double timestep_duration, CellSizeStrategy strategy=CellSizeStrategy::Optimal) const
	Creates the Grid with normal boundary conditions. More...

Member Function Documentation

int smash::ModusDefault::impose_boundary_conditions ( Particles *  , const OutputsList &  = {}  )

inline

Enforces sensible positions for the particles.

Currently, this is only needed for BoxModus; the other Modi do nothing.

See also

BoxModus::impose_boundary_conditions

Definition at line 59 of file modusdefault.h.

                                                        {}) {
    return 0;
  }

int smash::ModusDefault::total_N_number ( ) const

inline

Returns

Number of nucleons in both nuclei; only used in ColliderModus

Definition at line 65 of file modusdefault.h.

{ return 0; }

int smash::ModusDefault::proj_N_number ( ) const

inline

Returns

Number of nucleons in projectile; only used in ColliderModus

Definition at line 67 of file modusdefault.h.

{ return 0; }

bool smash::ModusDefault::cll_in_nucleus ( ) const

inline

Returns

Whether to allow collisions in nuclei; only used in ColliderModus

Definition at line 69 of file modusdefault.h.

{ return false; }

bool smash::ModusDefault::is_collider ( ) const

inline

Returns

Checks if modus is collider; overwritten in ColliderModus

Definition at line 71 of file modusdefault.h.

{ return false; }

bool smash::ModusDefault::is_list ( ) const

inline

Returns

Checks if modus is list modus; overwritten in ListModus

Definition at line 73 of file modusdefault.h.

{ return false; }

double smash::ModusDefault::impact_parameter ( ) const

inline

Returns

The impact parameter; overwritten in ColliderModus

Definition at line 75 of file modusdefault.h.

{ return 0.0; }

double smash::ModusDefault::velocity_projectile ( ) const

inline

Returns

The beam velocity of the projectile required in the Collider modus. In the other modus, return zero.

Definition at line 78 of file modusdefault.h.

{ return 0.0; }

double smash::ModusDefault::velocity_target ( ) const

inline

Returns

The beam velocity of the target required in the Collider modus. In the other modus, return zero.

Definition at line 81 of file modusdefault.h.

{ return 0.0; }

FermiMotion smash::ModusDefault::fermi_motion ( ) const

inline

Returns

The type of Fermi motion required in the Collider modus. In the other modus, just return FermiMotion::Off.

Definition at line 84 of file modusdefault.h.

{ return FermiMotion::Off; }

double smash::ModusDefault::max_timestep ( double  ) const

inline

Returns

Maximal timestep accepted by this modus. Negative means infinity.

Definition at line 86 of file modusdefault.h.

{ return -1.; }

double smash::ModusDefault::length ( ) const

inline

Returns

Length of the box; overwritten in BoxModus

Definition at line 89 of file modusdefault.h.

{ return -1.; }

double smash::ModusDefault::nuclei_passing_time ( ) const

inline

Get the passing time of the two nuclei in a collision.

This time corresponds to the moment when the nuclei have just passed entirely through each other and all primary collisions have occured. Formula taken from: Eq. (1) in Karpenko:2015xea

Only used in ColliderModus for IC output.

Returns

passing_time

Definition at line 100 of file modusdefault.h.

{ return 0.0; }

Grid<GridOptions::Normal> smash::ModusDefault::create_grid ( const Particles &  particles, double  min_cell_length, double  timestep_duration, CellSizeStrategy  strategy = CellSizeStrategy::Optimal  ) const

inline

Creates the Grid with normal boundary conditions.

Parameters

[in]	particles	The Particles object containing all particles of the currently running Experiment.
[in]	min_cell_length	The minimal length of the grid cells.
[in]	timestep_duration	Duration of the timestep. It is necessary for formation times treatment: if particle is fully or partially formed before the end of the timestep, it has to be on the grid.
[in]	strategy	The strategy to determine the cell size

Returns

the Grid object

See also

Grid::Grid

Definition at line 115 of file modusdefault.h.

                                                                 {
    return {particles, min_cell_length, timestep_duration, strategy};
  }

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

• src/include/smash/modusdefault.h