BaseSpecies.cc

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//Copyright (c) 2013-2014, The MercuryDPM Developers Team. All rights reserved.
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#include "BaseSpecies.h"
#include "SpeciesHandler.h"
#include "DPMBase.h"
#include "Interactions/BaseInteraction.h"
#include<cmath>

class BaseParticle;
class BaseInteractable;

BaseSpecies::BaseSpecies()
: BaseObject()
{
    handler_ = 0;
#ifdef DEBUG_CONSTRUCTOR
    std::cout << "BaseSpecies::BaseSpecies() finished" << std::endl;
#endif
}

BaseSpecies::BaseSpecies(const BaseSpecies &p)
: BaseObject(p)
{
    handler_ = p.handler_;
#ifdef DEBUG_CONSTRUCTOR
    std::cout << "BaseSpecies::BaseSpecies(const BaseSpecies &p) finished" << std::endl;
#endif
}

BaseSpecies::~BaseSpecies()
{
#ifdef DEBUG_DESTRUCTOR
    std::cout << "BaseSpecies::~BaseSpecies() finished" << std::endl;
#endif   
}

void BaseSpecies::setHandler(SpeciesHandler* handler)
{
    handler_ = handler;
}

SpeciesHandler* BaseSpecies::getHandler() const
{
    return handler_;
}

Mdouble BaseSpecies::average(Mdouble a, Mdouble b)
{
    //the second algorithm seems to have a better accuracy, at least for the case average(2e5,2e5)
    //return (a + b) != 0.0 ? (2. * (a * b) / (a + b)) : 0;
    return (a + b) != 0.0 ? (2./(1.0/a+1.0/b)) : 0.0;
}