TwoTrackMinimumDistanceLineLine.h

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#ifndef _Tracker_TwoTrackMinimumDistanceLineLine_H_
#define _Tracker_TwoTrackMinimumDistanceLineLine_H_

#include "DataFormats/GeometryVector/interface/GlobalPoint.h"
#include <string>
#include <sstream>
#include <utility>

class GlobalTrajectoryParameters;

class TwoTrackMinimumDistanceLineLine {
public:
  bool calculate(const GlobalTrajectoryParameters &,
                 const GlobalTrajectoryParameters &);  // retval=true? error occured.

  std::pair<GlobalPoint, GlobalPoint> points() const;
  std::pair<double, double> pathLength() const;

  double firstAngle() const { return phiG; }
  double secondAngle() const { return phiH; }

private:
  double phiH, phiG;
  double pathG, pathH;
  GlobalPoint gPos, hPos;
};
#endif