LacunarityCalculator.cpp

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#include "VesselSegment.hpp"
#include "ChastePoint.hpp"
#include "GeometryTools.hpp"
#include "LacunarityCalculator.hpp"

template<unsigned DIM>
LacunarityCalculator<DIM>::LacunarityCalculator() :
        AbstractRegularGridDiscreteContinuumSolver<DIM>(), mpNetwork()
{

}

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

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

}

template<unsigned DIM>
void LacunarityCalculator<DIM>::SetVesselNetwork(boost::shared_ptr<VesselNetwork<DIM> > pNetwork)
{
    mpNetwork = pNetwork;
}

template<unsigned DIM>
void LacunarityCalculator<DIM>::Solve()
{
    unsigned extents_x = this->mpRegularGrid->GetExtents()[0];

    std::vector<boost::shared_ptr<VesselSegment<DIM> > > segments;
    segments = this->mpNetwork->GetVesselSegments();

    // Get the box widths
    std::vector<unsigned> width_factors;
    width_factors.push_back(1);
    width_factors.push_back(2);
    width_factors.push_back(4);
    width_factors.push_back(8);
    width_factors.push_back(16);

    std::ofstream output_file((this->mpOutputFileHandler->GetOutputDirectoryFullPath() + "output.dat").c_str());
    if (output_file.is_open())
    {
        output_file << "Lacunarity, Box\n";
    }

    units::quantity<unit::length> length_scale = this->mpRegularGrid->GetReferenceLengthScale();
    for (unsigned width_index = 0; width_index < width_factors.size(); width_index++)
    {
        double box_size = (double(extents_x - 1) / double(width_factors[width_index]));
        units::quantity<unit::length> q1 = 0.0* unit::metres;
        units::quantity<unit::area> q2 = 0.0* unit::metres*unit::metres;

        unsigned z_extent = width_factors[width_index];
        z_extent = 1;

        for (unsigned kdx = 0; kdx < z_extent; kdx++)
        {
            for (unsigned jdx = 0; jdx < width_factors[width_index]; jdx++)
            {
                for (unsigned idx = 0; idx < width_factors[width_index]; idx++)
                {
                    c_vector<double, DIM> box_location;
                    box_location[0] = double(idx) * box_size + box_size / 2.0;
                    box_location[1] = double(jdx) * box_size + box_size / 2.0;
                    box_location[2] = double(kdx) * box_size + box_size / 2.0;

                    units::quantity<unit::length> vessel_length = 0.0 * unit::metres;
                    for (unsigned seg_index = 0; seg_index < segments.size(); seg_index++)
                    {
                        vessel_length += LengthOfLineInBox<DIM>(segments[seg_index]->GetNode(0)->rGetLocation(),
                                                                segments[seg_index]->GetNode(1)->rGetLocation(),
                                                                DimensionalChastePoint<DIM>(box_location, length_scale), box_size*length_scale);
                    }
                    q1 += vessel_length;
                    q2 += vessel_length * vessel_length;

                }
            }
        }
        unsigned num_boxes = width_factors[width_index] * width_factors[width_index] * z_extent;
        double lacunarity = double(num_boxes) * q2 / (q1 * q1);

        if (output_file.is_open())
        {
            output_file << lacunarity << ", " << box_size << " \n";
        }
    }
    output_file.close();
}

// Explicit instantiation
template class LacunarityCalculator<3> ;