mirror of https://github.com/CGAL/cgal
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
// Copyright (c) 2005 INRIA (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you may redistribute it under
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// the terms of the Q Public License version 1.0.
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// See the file LICENSE.QPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Laurent Saboret, Pierre Alliez, Bruno Levy
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/// SparseLinearAlgebraTraits_d::Matrix
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/// is a concept of a sparse matrix class.
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///
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/// Sub-concept: This is a sub-concept of LinearAlgebraTraits_d::Matrix.
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///
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/// Models:
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/// - Taucs_matrix
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/// - OpenNL::SparseMatrix
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class Matrix
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{
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// Public types
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public:
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typedef xxx NT;
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// Public operations
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public:
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/// Create a square matrix initialized with zeros.
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Matrix(int dimension);
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/// Create a rectangular matrix initialized with zeros.
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Matrix (int rows, int columns);
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/// Return the matrix number of rows.
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int row_dimension () const;
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/// Return the matrix number of columns.
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int column_dimension () const;
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/// Read access to 1 matrix coefficient.
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///
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/// Preconditions:
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/// - 0 <= row < row_dimension().
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/// - 0 <= column < column_dimension().
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NT get_coef (int row, int column) const;
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/// Write access to 1 matrix coefficient: a_ij <- a_ij + val.
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///
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/// Preconditions:
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/// - 0 <= row < row_dimension().
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/// - 0 <= column < column_dimension().
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void add_coef(int row, int column, NT value);
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/// Write access to 1 matrix coefficient.
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///
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/// Preconditions:
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/// - 0 <= row < row_dimension().
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/// - 0 <= column < column_dimension().
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void set_coef (int row, int column, NT value);
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};
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