/* Copyright 2008-2010, Technische Universitaet Muenchen,
   Authors: Christian Hoeppner & Sebastian Neubert & Johannes Rauch

   This file is part of GENFIT.

   GENFIT is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published
   by the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   GENFIT is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with GENFIT.  If not, see <http://www.gnu.org/licenses/>.
*/
/** @addtogroup genfit
 * @{
 */

#ifndef genfit_PlanarMeasurement_h
#define genfit_PlanarMeasurement_h

#include "AbsMeasurement.h"
#include "AbsHMatrix.h"
#include "MeasurementOnPlane.h"


namespace genfit {

class AbsTrackRep;

/** @brief Measurement class implementing a planar hit geometry (1 or 2D).
 *
 *  @author Christian H&ouml;ppner (Technische Universit&auml;t M&uuml;nchen, original author)
 *  @author Sebastian Neubert  (Technische Universit&auml;t M&uuml;nchen, original author)
 *  @author Johannes Rauch  (Technische Universit&auml;t M&uuml;nchen, original author)
 *
 * The main feature of this type of hit is, that the detector plane
 * is defined by the detector hardware. 
 */
class PlanarMeasurement : public AbsMeasurement {

 public:
  PlanarMeasurement(int nDim = 1);
  PlanarMeasurement(const TVectorD& rawHitCoords, const TMatrixDSym& rawHitCov, int detId, int hitId, TrackPoint* trackPoint);

  virtual ~PlanarMeasurement() {;}

  virtual AbsMeasurement* clone() const {return new PlanarMeasurement(*this);}

  int getPlaneId() const {return planeId_;}

  virtual SharedPlanePtr constructPlane(const StateOnPlane& state) const;

  virtual std::vector<MeasurementOnPlane*> constructMeasurementsOnPlane(const StateOnPlane& state) const;

  virtual const AbsHMatrix* constructHMatrix(const AbsTrackRep*) const;

  virtual void setPlane(const SharedPlanePtr& physicalPlane, int planeId = -1) {physicalPlane_ = physicalPlane; planeId_ = planeId;}

  /** @brief Use if the coordinate for 1D hits measured in V direction.
   *
   * Per default for 1D planar hits, the coordinate is measured in U direction.
   * With this function you can set it to be measured in V direction.
   * This affects the outcoe of constructHMatrix().
   */
  void setStripV(bool v = true) {stripV_ = v;}

 protected:
  SharedPlanePtr physicalPlane_;   //! This is persistent, but '!' makes ROOT shut up.
  int planeId_; // planeId id is -1 per default
  bool stripV_;

 public:

  ClassDef(PlanarMeasurement,1)

};

} /* End of namespace genfit */
/** @} */

#endif // genfit_PlanarMeasurement_h