APairInteractionGroup< T > Class Template Reference

Abstract base class for a group of pair interactions. More...

#include <InteractionGroup.h>

Inheritance diagram for APairInteractionGroup< T >:

Collaboration diagram for APairInteractionGroup< T >:

Public Member Functions
bool	isIn (int, int)
virtual void	setExIG (AParallelInteractionStorage *eg)
Public Member Functions inherited from AInteractionGroup< T >
virtual	~AInteractionGroup ()
virtual void	Update (ParallelParticleArray< T > *)=0
virtual void	calcForces ()=0
virtual void	setTimeStepSize (double dt)=0

Protected Attributes
set< pair< int, int > >	m_set
unsigned int	m_update_timestamp

Detailed Description

template<class T>
class APairInteractionGroup< T >

Abstract base class for a group of pair interactions.

The difference to AInteractionGroup is the existence of a function bool isIn(int,int) which returns if an interaction between particles with the given Ids is in this group. (Necessary because bonded -> not elastic,frictional etc.)

Member Function Documentation

isIn()

template<class T >

bool APairInteractionGroup< T >::isIn	(	int	id1,
		int	id2
	)

setExIG()

template<class T >

virtual void APairInteractionGroup< T >::setExIG ( AParallelInteractionStorage *  eg )

inlinevirtual

Reimplemented in CRotThermElasticInteractionGroup< T >, CRotElasticInteractionGroup< T >, and CElasticInteractionGroup< T >.

Member Data Documentation

m_set

template<class T >

set<pair<int,int> > APairInteractionGroup< T >::m_set

protected

having an extra set of all pairs if particle-Ids of the interactions in the group costs some memory, but speeds up isIn to O(log N). It would be O(N) if implemented with a find() over the vector of inteactions.

Todo:

replace set (O(logN)) with hashset (O(1))

m_update_timestamp

template<class T >

unsigned int APairInteractionGroup< T >::m_update_timestamp

protected

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

• Model/InteractionGroup.h
• Model/InteractionGroup.hpp