CompositeAlignmentDerivativesExtractor.h

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#ifndef Alignment_CommonAlignmentParametrization_CompositeAlignmentDerivativesExtractor_H
#define Alignment_CommonAlignmentParametrization_CompositeAlignmentDerivativesExtractor_H

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


class Alignable;
class AlignableDet;
class AlignableDetOrUnitPtr;
class TrajectoryStateOnSurface;

class CompositeAlignmentDerivativesExtractor
{

public:
  
  CompositeAlignmentDerivativesExtractor( const std::vector< Alignable* > & alignables,
                      const std::vector< AlignableDet* > & alignableDets,
                      const std::vector< TrajectoryStateOnSurface > & tsos );
  CompositeAlignmentDerivativesExtractor( const std::vector< Alignable* > & alignables,
                      const std::vector< AlignableDetOrUnitPtr > & alignableDets,
                      const std::vector< TrajectoryStateOnSurface > & tsos );

  ~CompositeAlignmentDerivativesExtractor( void ) {};

  const AlgebraicMatrix & derivatives( void ) const { return theDerivatives; }
  const AlgebraicVector & correctionTerm( void ) const { return theCorrectionTerm; }
  
private:
  
  void extractCurrentAlignment( const std::vector< Alignable* > & alignables,
                const std::vector< AlignableDetOrUnitPtr > & alignableDets,
                const std::vector< TrajectoryStateOnSurface > & tsos );
  
  void extractWithoutMultipleHits( const std::vector< AlgebraicVector > & subCorrectionTerm,
                   const std::vector< AlgebraicMatrix > & subDerivatives );
  
  void extractWithMultipleHits( const std::vector< AlgebraicVector > & subCorrectionTerm,
                const std::vector< AlgebraicMatrix > & subDerivatives,
                const std::vector< Alignable* > & alignables );
  
  AlgebraicMatrix theDerivatives;
  AlgebraicVector theCorrectionTerm;
  
};

#endif