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include/cinder/BandedMatrix.h

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00001 /*
00002  Copyright (c) 2010, The Barbarian Group
00003  All rights reserved.
00004 
00005  Redistribution and use in source and binary forms, with or without modification, are permitted provided that
00006  the following conditions are met:
00007 
00008     * Redistributions of source code must retain the above copyright notice, this list of conditions and
00009     the following disclaimer.
00010     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
00011     the following disclaimer in the documentation and/or other materials provided with the distribution.
00012 
00013  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
00014  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00015  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
00016  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00017  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00018  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00019  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00020  POSSIBILITY OF SUCH DAMAGE.
00021 */
00022 
00023 /*
00024  Geometric Tools, LLC
00025  Portions Copyright (c) 1998-2010
00026  Distributed under the Boost Software License, Version 1.0.
00027  http://www.boost.org/LICENSE_1_0.txt
00028  http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
00029 */
00030 
00031 #pragma once
00032 
00033 namespace cinder {
00034 
00035 template<typename T>
00036 class BandedMatrix {
00037  public:
00038     BandedMatrix( int iSize, int iLBands, int iUBands );
00039     BandedMatrix( const BandedMatrix& rkM );
00040     ~BandedMatrix();
00041 
00042     BandedMatrix& operator=( const BandedMatrix &rkM );
00043 
00044     int getSize() const;
00045     int getLBands() const;
00046     int getUBands() const;
00047 
00048     T* getDBand();
00049     const T* getDBand() const;
00050 
00051     int getLBandMax( int i ) const;  // LBand(i):  0 <= index < LBandMax
00052     T* getLBand( int i );
00053     const T* getLBand( int i ) const;
00054 
00055     int getUBandMax( int i ) const;  // UBand(i):  0 <= index < UBandMax
00056     T* getUBand( int i );
00057     const T* getUBand( int i ) const;
00058 
00059     T& operator()( int iRow, int iCol );
00060     T operator()( int iRow, int iCol ) const;
00061 
00062     void setZero();
00063     void setIdentity();
00064 
00065  private:
00066     void allocate();
00067     void deallocate();
00068 
00069     int m_iSize, m_iLBands, m_iUBands;
00070     T* m_afDBand;
00071     T** m_aafLBand;
00072     T** m_aafUBand;
00073 };
00074 
00075 typedef BandedMatrix<float> BandedMatrixf;
00076 typedef BandedMatrix<double> BandedMatrixd;
00077 
00078 } // namespace cindernt