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HelixPlaneCrossing.h

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#ifndef HelixPlaneCrossing_H
#define HelixPlaneCrossing_H

#include "DataFormats/GeometryVector/interface/Basic3DVector.h"

#include <utility>
class Plane;

class HelixPlaneCrossing {
public:

  typedef Basic3DVector<float>   PositionType;
  typedef Basic3DVector<float>   DirectionType;

  virtual std::pair<bool,double> pathLength( const Plane&) = 0;

  virtual PositionType position( double s) const = 0;

  virtual DirectionType direction( double s) const = 0;

};

#endif

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