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#ifndef Alignment_CommonAlignmentAlgorithm_AlignmentExtendedCorrelationsEntry_h
#define Alignment_CommonAlignmentAlgorithm_AlignmentExtendedCorrelationsEntry_h
#include <vector>
#include "DataFormats/CLHEP/interface/AlgebraicObjects.h"
/// Data container for a correlations matrix (represented by a vector of floats), with
/// basic access functions. NOTE: This class is designed specifically for the use within
/// AlignmentExtendedCorrelationsStore, and is not intended to be used elsewhere.
class AlignmentExtendedCorrelationsEntry {
public:
/// Default constructor.
AlignmentExtendedCorrelationsEntry(void);
/// Constructor. Leaves the correlations matrix uninitialized.
explicit AlignmentExtendedCorrelationsEntry(short unsigned int nRows, short unsigned int nCols);
/// Constructor. Initializes all elements of the correlations matrix to the given value.
explicit AlignmentExtendedCorrelationsEntry(short unsigned int nRows, short unsigned int nCols, const float init);
/// Constructor from CLHEP matrix.
explicit AlignmentExtendedCorrelationsEntry(const AlgebraicMatrix& mat);
/// Destructor.
~AlignmentExtendedCorrelationsEntry(void) {}
/// Read or write an element of the correlations matrix. NOTE: Indexing starts from [0,0].
inline float& operator()(short unsigned int iRow, short unsigned int jCol) { return theData[iRow * theNCols + jCol]; }
/// Read or write an element of the correlations matrix. NOTE: Indexing starts from [0,0].
inline const float operator()(short unsigned int iRow, short unsigned int jCol) const {
return theData[iRow * theNCols + jCol];
}
/// Get the number of rows of the correlation matrix.
inline const short unsigned int numRow(void) const { return theNRows; }
/// Get the number of columns of the correlation matrix.
inline const short unsigned int numCol(void) const { return theNCols; }
/// Multiply all elements of the correlations matrix with a given number.
void operator*=(const float multiply);
/// Retrieve the correlation matrix in a CLHEP matrix representation;
AlgebraicMatrix matrix(void) const;
// /// Get the counter's value.
// inline const int counter( void ) const { return theCounter; }
// /// Increase the counter's value by 1.
// inline void incrementCounter( void ) { ++theCounter; }
// /// Decrease the counter's value by 1.
// inline void decrementCounter( void ) { --theCounter; }
private:
// int theCounter;
short unsigned int theNRows;
short unsigned int theNCols;
std::vector<float> theData;
};
#endif
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