LatticeBasedSproutingRule.cpp

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#include "RandomNumberGenerator.hpp"
#include "VesselSegment.hpp"
#include "Vessel.hpp"
#include "LatticeBasedSproutingRule.hpp"
#include "BaseUnits.hpp"

template<unsigned DIM>
LatticeBasedSproutingRule<DIM>::LatticeBasedSproutingRule()
    : AbstractSproutingRule<DIM>(),
      mpGrid(),
      mTipExclusionRadius(0.0 * unit::metres)
{

}

template <unsigned DIM>
boost::shared_ptr<LatticeBasedSproutingRule<DIM> > LatticeBasedSproutingRule<DIM>::Create()
{
    MAKE_PTR(LatticeBasedSproutingRule<DIM>, pSelf);
    return pSelf;
}

template<unsigned DIM>
LatticeBasedSproutingRule<DIM>::~LatticeBasedSproutingRule()
{

}

template<unsigned DIM>
void LatticeBasedSproutingRule<DIM>::SetGrid(boost::shared_ptr<RegularGrid<DIM> > pGrid)
{
    mpGrid = pGrid;
}

template<unsigned DIM>
std::vector<boost::shared_ptr<VesselNode<DIM> > > LatticeBasedSproutingRule<DIM>::GetSprouts(const std::vector<boost::shared_ptr<VesselNode<DIM> > >& rNodes)
{
    if(!this->mpVesselNetwork)
    {
        EXCEPTION("A vessel network is required for this type of sprouting rule.");
    }

    // Set up the output sprouts vector
    std::vector<boost::shared_ptr<VesselNode<DIM> > > sprouts;

    // Loop over all nodes and randomly select sprouts
    for(unsigned idx = 0; idx < rNodes.size(); idx++)
    {
        if(rNodes[idx]->GetNumberOfSegments() != 2)
        {
            continue;
        }

        // Check we are not too close to the end of the vessel
        if(this->mVesselEndCutoff > 0.0 * unit::metres)
        {
            if(rNodes[idx]->GetSegment(0)->GetVessel()->GetClosestEndNodeDistance(rNodes[idx]->rGetLocation())< this->mVesselEndCutoff)
            {
                continue;
            }
            if(rNodes[idx]->GetSegment(1)->GetVessel()->GetClosestEndNodeDistance(rNodes[idx]->rGetLocation())< this->mVesselEndCutoff)
            {
                continue;
            }
        }

        // Check we are not too close to an existing candidate
        if(mTipExclusionRadius>0.0 * unit::metres)
        {
            bool too_close = false;
            for(unsigned jdx=0; jdx<sprouts.size(); jdx++)
            {
                if(rNodes[idx]->GetDistance(sprouts[jdx]->rGetLocation()) < mTipExclusionRadius)
                {
                    too_close = true;
                }
            }
            if(too_close)
            {
                continue;
            }
        }

        double prob_tip_selection = this->mSproutingProbability*SimulationTime::Instance()->GetTimeStep()*BaseUnits::Instance()->GetReferenceTimeScale();
        if (RandomNumberGenerator::Instance()->ranf() < prob_tip_selection)
        {
            sprouts.push_back(rNodes[idx]);
        }
    }
    return sprouts;
}

// Explicit instantiation
template class LatticeBasedSproutingRule<2> ;
template class LatticeBasedSproutingRule<3> ;