#ifndef TrajectoryStateAccessor_H
#define TrajectoryStateAccessor_H

class FreeTrajectoryState;

/** Helper class to obtain the uncertainty on specific
 *  trajectory parameters.
 */

class TrajectoryStateAccessor {
public:
  TrajectoryStateAccessor(const FreeTrajectoryState& fts) : theFts(fts) {}

  float inversePtError() const;

private:
  const FreeTrajectoryState& theFts;
};

#endif
