TrajectoryStateClosestToPointBuilder.h

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#ifndef TrajectoryStateClosestToPointBuilder_H
#define TrajectoryStateClosestToPointBuilder_H

#include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
#include "TrackingTools/TrajectoryState/interface/TrajectoryStateClosestToPoint.h"

class TrajectoryStateClosestToPointBuilder {
public:
  typedef TrajectoryStateOnSurface TSOS;
  typedef FreeTrajectoryState FTS;

  virtual ~TrajectoryStateClosestToPointBuilder() {}

  virtual TrajectoryStateClosestToPoint operator()(const FTS& originalFTS, const GlobalPoint& referencePoint) const = 0;

  virtual TrajectoryStateClosestToPoint operator()(const TSOS& originalTSOS,
                                                   const GlobalPoint& referencePoint) const = 0;

  static bool positionEqual(const GlobalPoint& ptB, const GlobalPoint& ptA) { return ptA == ptB; }

protected:
  static TrajectoryStateClosestToPoint constructTSCP(const FTS& originalFTS, const GlobalPoint& referencePoint) {
    return TrajectoryStateClosestToPoint(originalFTS, referencePoint);
  }
};
#endif