tss::SimpleClustering Class Reference

#include <SimpleClustering.h>

Public Member Functions
std::vector< tss::Cluster2D >	run (const std::vector< tss::Hit2D > &inp) const
std::vector< tss::Cluster2D >	run (const tss::Cluster2D &inp) const
bool	hitsTouching (const tss::Hit2D &h1, const tss::Hit2D &h2) const
bool	hitsTouching (const tss::Cluster2D &c1, const tss::Hit2D &h2) const
bool	hitsTouching (const tss::Cluster2D &c1, const tss::Cluster2D &c2) const

Private Member Functions
void	merge (std::vector< tss::Cluster2D > &clusters) const

Detailed Description

Definition at line 120 of file larreco/larreco/ClusterFinder/TrackShowerSplitter/Segmentation2D/SimpleClustering.h.

Member Function Documentation

bool tss::SimpleClustering::hitsTouching	(	const tss::Hit2D &	h1,
		const tss::Hit2D &	h2
	)		const

Definition at line 178 of file SimpleClustering.cxx.

{
        if ((h1.Wire() == h2.Wire()) &&
            (h1.PeakTime() == h2.PeakTime())) return false;

        bool touches = false;
        if ((h1.Wire() >= h2.Wire() - 1) &&
            (h1.Wire() <= h2.Wire() + 1))
        {
                if (((h2.StartTick() <= h1.StartTick()) && (h1.StartTick() <= h2.EndTick() + 1)) ||
                        ((h2.StartTick() <= h1.EndTick() + 1) && (h1.EndTick() <= h2.EndTick())) ||
                        ((h2.StartTick() >= h1.StartTick()) && (h1.EndTick() >= h2.EndTick())))
                {
                        touches = true;
                }
        }
        return touches;
}

bool tss::SimpleClustering::hitsTouching	(	const tss::Cluster2D &	c1,
		const tss::Hit2D &	h2
	)		const

Definition at line 198 of file SimpleClustering.cxx.

{
        for (size_t i = 0; i < c1.size(); i++)
        {
                if (hitsTouching(c1[i], h2)) return true;
        }
        return false;
}

bool tss::SimpleClustering::hitsTouching	(	const tss::Cluster2D &	c1,
		const tss::Cluster2D &	c2
	)		const

Definition at line 208 of file SimpleClustering.cxx.

{
        for (unsigned int i = 0; i < c1.size(); i++)
        {
                if (hitsTouching(c2, c1[i])) return true;
        }
        return false;
}

void tss::SimpleClustering::merge ( std::vector< tss::Cluster2D > &  clusters ) const

private

Definition at line 218 of file SimpleClustering.cxx.

{
        bool merged = true;
        while (merged)
        {
                merged = false;

                size_t i = 0;
                while (i < clusters.size() - 1)
                {
                        size_t j = i + 1;
                        while (j < clusters.size())
                        {
                                if (hitsTouching(clusters[i], clusters[j]))
                                {
                                        clusters[i].hits().reserve(clusters[i].size() + clusters[i].size());
                                        for (size_t h = 0; h < clusters[j].size(); ++h)
                                                clusters[i].hits().push_back(clusters[j].hits()[h]);
                                        clusters.erase(clusters.begin() + j);
                                        merged = true;
                                }
                                else ++j;
                        }
                        ++i;
                }
        }
}

std::vector< tss::Cluster2D > tss::SimpleClustering::run

(

const std::vector< tss::Hit2D > &

inp

)

const

Definition at line 247 of file SimpleClustering.cxx.

{
        std::vector< tss::Cluster2D > result;
        for (size_t h = 0; h < inp.size(); ++h)
        {
                bool found = false;
                for (size_t r = 0; r < result.size(); ++r)
                        if (hitsTouching(result[r], inp[h]))
                {
                        result[r].hits().push_back(&(inp[h])); found = true; break;
                }
                if (!found)
                {
                        result.push_back(tss::Cluster2D());
                        result.back().hits().push_back(&(inp[h]));
                }
        }
        merge(result);

        return result;
}

std::vector< tss::Cluster2D > tss::SimpleClustering::run

(

const tss::Cluster2D &

inp

)

const

Definition at line 270 of file SimpleClustering.cxx.

{
        std::vector< tss::Cluster2D > result;
        for (size_t h = 0; h < inp.size(); ++h)
        {
                bool found = false;
                for (size_t r = 0; r < result.size(); ++r)
                        if (hitsTouching(result[r], inp[h]))
                {
                        result[r].hits().push_back(inp.hits()[h]); found = true; break;
                }
                if (!found)
                {
                        result.push_back(tss::Cluster2D());
                        result.back().hits().push_back(inp.hits()[h]);
                }
        }
        merge(result);

        return result;
}

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

• larreco/larreco/ClusterFinder/TrackShowerSplitter/Segmentation2D/SimpleClustering.h
• SimpleClustering.cxx