GeoPrimitivesCompare.h

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/*
  Copyright (C) 2002-2018 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef GEOPRIMITIVESCOMPARE_H_
#define GEOPRIMITIVESCOMPARE_H_
 
#include <vector>
#include "GeoPrimitives/GeoPrimitives.h"
 
namespace Amg {
 
 
struct Vector3DComparer
{
    bool operator()(Amg::Vector3D const &v1, Amg::Vector3D const &v2) const
    {
        if ( v1.z() > v2.z() ) {
            return false;
        } else if ( v1.z() < v2.z() ) {
            return true;
        } else if ( v1.y() > v2.y() ) {
            return false;
        } else if ( v1.y() < v2.y() ) {
            return true;
        } else if ( v1.x() > v2.x() ) {
            return false;
        } else if ( v1.x() < v2.x() ) {
            return true;
        } else {
            return false;
        }
    }
};
 
 
struct VectorVector3DComparer
{
    bool operator()(std::vector<Amg::Vector3D> const &vv1, std::vector<Amg::Vector3D> const &vv2) const
    {
          std::vector<Amg::Vector3D>::const_iterator v1 = vv1.begin();
          std::vector<Amg::Vector3D>::const_iterator v2 = vv2.begin();
 
          while (v1 != vv1.end()) {
            if (v2 == vv2.end()) return false;
            if ( (*v1).z() > (*v2).z() ) {
              return false;
            } else if ( (*v1).z() < (*v2).z() ) {
              return true;
            } else if ( (*v1).y() > (*v2).y() ) {
              return false;
            } else if ( (*v1).y() < (*v2).y() ) {
              return true;
            } else if ( (*v1).x() > (*v2).x() ) {
              return false;
            } else if ( (*v1).x() < (*v2).x() ) {
              return true;
            }
            ++v1;
            ++v2;
          }
          if (v2 != vv2.end()) return true;
          return false;
}
 
};
 
 
} // end namespace
 
#endif /* GEOPRIMITIVESCOMPARE_H_ */