/data/refman/pasoursint/CMSSW_4_1_8_patch13/src/Alignment/CommonAlignment/interface/AlignmentParameters.h

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#ifndef Alignment_CommonAlignment_AlignmentParameters_H
#define Alignment_CommonAlignment_AlignmentParameters_H

#include <vector>

#include "Alignment/CommonAlignment/interface/AlignmentParametersData.h"
#include "Alignment/CommonAlignment/interface/AlignmentUserVariables.h"

#include "DataFormats/CLHEP/interface/AlgebraicObjects.h"


// include and not forward declare to ensure automatic conversion from AlignableDet(Unit): 
// NO: include problems... #include "Alignment/CommonAlignment/interface/AlignableDetOrUnitPtr.h"
class AlignableDetOrUnitPtr;
class Alignable;
class TrajectoryStateOnSurface;
class RecHit;

class AlignmentParameters 
{

public:

  typedef AlignmentParametersData::DataContainer DataContainer;

  AlignmentParameters();

  AlignmentParameters(Alignable* object, const AlgebraicVector& par, 
                      const AlgebraicSymMatrix& cov);

  AlignmentParameters(Alignable* object, const AlgebraicVector& par, 
                      const AlgebraicSymMatrix& cov, const std::vector<bool>& sel);

  AlignmentParameters(Alignable* object, const DataContainer& data );

  virtual ~AlignmentParameters();

  virtual void apply() = 0;
  virtual int type() const = 0;

  virtual AlignmentParameters* clone(const AlgebraicVector& par,
                                     const AlgebraicSymMatrix& cov) const = 0;
  virtual AlignmentParameters* cloneFromSelected(const AlgebraicVector& par,
                                                 const AlgebraicSymMatrix& cov) const = 0;
 
  const std::vector<bool>& selector( void ) const;

  const int numSelected( void ) const;

  AlgebraicVector selectedParameters( void ) const;

  AlgebraicSymMatrix selectedCovariance(void) const;

  const AlgebraicVector& parameters(void) const;

  const AlgebraicSymMatrix& covariance(void) const;

  virtual AlgebraicMatrix derivatives(const TrajectoryStateOnSurface& tsos,
                                      const AlignableDetOrUnitPtr &alidet) const = 0;
  virtual AlgebraicMatrix selectedDerivatives( const TrajectoryStateOnSurface& tsos, 
                                               const AlignableDetOrUnitPtr &alidet) const;

  void setUserVariables(AlignmentUserVariables* auv);
  AlignmentUserVariables* userVariables( void ) const;

  Alignable* alignable( void ) const;

  virtual unsigned int hierarchyLevel() const;

  const int size(void) const;

  const bool isValid(void) const;
  void setValid(bool v);

protected:

  // private helper methods
  AlgebraicSymMatrix collapseSymMatrix(const AlgebraicSymMatrix& m, 
                                       const std::vector<bool>& sel) const; 
  AlgebraicVector collapseVector(const AlgebraicVector& m, 
                                 const std::vector<bool>& sel) const;
  AlgebraicSymMatrix expandSymMatrix(const AlgebraicSymMatrix& m, 
                                     const std::vector<bool>& sel) const;
  AlgebraicVector expandVector(const AlgebraicVector& m, 
                               const std::vector<bool>& sel) const;

  // data members
  
  Alignable* theAlignable;

  DataContainer theData;

  AlignmentUserVariables* theUserVariables;

  bool bValid; 


};

#endif