OrderedSparseMatrix.h

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#pragma once

#include "SparseVector.h"
#include "SparseMatrix.h"

#include <string>
#include <fstream>
#include <iostream>

namespace isam {

class OrderedSparseMatrix : public SparseMatrix {
  int* _r_to_a; // column variable order
  int* _a_to_r;

  void _allocate_OrderedSparseMatrix(bool init_order = true);

  void _copy_from_OrderedSparseMatrix(const OrderedSparseMatrix& mat);

  void _dealloc_OrderedSparseMatrix();

  void _calc_reverse_order(int num, const int* order, int* reverse_order) const;

  void _set_order(const int* r_to_a);

public:

  OrderedSparseMatrix(int num_rows, int num_cols);

  OrderedSparseMatrix(const OrderedSparseMatrix& mat);

  OrderedSparseMatrix(const OrderedSparseMatrix& mat, int num_rows,
      int num_cols, int first_row = 0, int first_col = 0);

  OrderedSparseMatrix(int num_rows, int num_cols, SparseVector_p* rows);

  virtual ~OrderedSparseMatrix();

  const OrderedSparseMatrix& operator= (const OrderedSparseMatrix& mat);

  // overridden functions

  void set_row(int row, const SparseVector& new_row);

  void import_rows_ordered(int num_rows, int num_cols, SparseVector_p* rows, int* r_to_a);

  void append_new_cols(int num);

  // new functions

  virtual const int* a_to_r() const;

  virtual const int* r_to_a() const;

};

}