PLearn 0.1
RowsSubVMatrix.cc
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00001 // -*- C++ -*-
00002 
00003 // RowsSubVMatrix.cc
00004 //
00005 // Copyright (C) 2003 Pascal Vincent
00006 //
00007 // Redistribution and use in source and binary forms, with or without
00008 // modification, are permitted provided that the following conditions are met:
00009 //
00010 //  1. Redistributions of source code must retain the above copyright
00011 //     notice, this list of conditions and the following disclaimer.
00012 //
00013 //  2. Redistributions in binary form must reproduce the above copyright
00014 //     notice, this list of conditions and the following disclaimer in the
00015 //     documentation and/or other materials provided with the distribution.
00016 //
00017 //  3. The name of the authors may not be used to endorse or promote
00018 //     products derived from this software without specific prior written
00019 //     permission.
00020 //
00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031 //
00032 // This file is part of the PLearn library. For more information on the PLearn
00033 // library, go to the PLearn Web site at www.plearn.org
00034 
00035 /* *******************************************************
00036  * $Id: RowsSubVMatrix.cc 5557 2006-05-10 20:36:58Z lamblin $
00037  ******************************************************* */
00038 
00039 // Authors: Pascal Vincent
00040 
00044 #include "RowsSubVMatrix.h"
00045 
00046 namespace PLearn {
00047 using namespace std;
00048 
00049 
00050 RowsSubVMatrix::RowsSubVMatrix()
00051     :startrow(0)
00052 {}
00053 
00054 RowsSubVMatrix::RowsSubVMatrix(VMat the_source, int the_startrow, int the_length)
00055     :SourceVMatrix(the_source), startrow(the_startrow)
00056 {
00057     length_ = the_length;
00058     build_();
00059 }
00060 
00061 
00062 PLEARN_IMPLEMENT_OBJECT(RowsSubVMatrix, "ONE LINE DESCRIPTION", "MULTI-LINE \nHELP");
00063 
00064 void RowsSubVMatrix::getNewRow(int i, const Vec& v) const
00065 {
00066     source->getRow(startrow+i,v);
00067 }
00068 
00069 void RowsSubVMatrix::declareOptions(OptionList& ol)
00070 {
00071     declareOption(ol, "startrow", &RowsSubVMatrix::startrow, OptionBase::buildoption,
00072                   "The row where this submatrix starts in the source.\n"
00073                   "You should also explicitly specify the length option.\n");
00074 
00075     // Now call the parent class' declareOptions
00076     inherited::declareOptions(ol);
00077 }
00078 
00079 void RowsSubVMatrix::build_()
00080 {
00081     if (source)
00082         setMetaInfoFromSource();
00083 }
00084 
00085 // ### Nothing to add here, simply calls build_
00086 void RowsSubVMatrix::build()
00087 {
00088     inherited::build();
00089     build_();
00090 }
00091 
00092 void RowsSubVMatrix::makeDeepCopyFromShallowCopy(CopiesMap& copies)
00093 {
00094     inherited::makeDeepCopyFromShallowCopy(copies);
00095 }
00096 
00097 } // end of namespace PLearn
00098 
00099 
00100 /*
00101   Local Variables:
00102   mode:c++
00103   c-basic-offset:4
00104   c-file-style:"stroustrup"
00105   c-file-offsets:((innamespace . 0)(inline-open . 0))
00106   indent-tabs-mode:nil
00107   fill-column:79
00108   End:
00109 */
00110 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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