PLearn 0.1
GetInputVMatrix.cc
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00001 // -*- C++ -*-
00002 
00003 // GetInputVMatrix.cc
00004 //
00005 // Copyright (C) 2004 Olivier Delalleau
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: GetInputVMatrix.cc 8617 2008-03-03 17:45:54Z nouiz $
00037  ******************************************************* */
00038 
00039 // Authors: Olivier Delalleau
00040 
00044 #include "GetInputVMatrix.h"
00045 
00046 namespace PLearn {
00047 using namespace std;
00048 
00050 // GetInputVMatrix //
00052 GetInputVMatrix::GetInputVMatrix()
00053 {
00054 }
00055 
00056 GetInputVMatrix::GetInputVMatrix(VMat the_source) {
00057     this->source = the_source;
00058     build_();
00059 }
00060 
00061 PLEARN_IMPLEMENT_OBJECT(GetInputVMatrix,
00062                         "This VMatrix only sees the input part of its source VMatrix.",
00063                         ""
00064     );
00065 
00067 // declareOptions //
00069 void GetInputVMatrix::declareOptions(OptionList& ol)
00070 {
00071     // ### ex:
00072     // declareOption(ol, "myoption", &GetInputVMatrix::myoption, OptionBase::buildoption,
00073     //               "Help text describing this option");
00074     // ...
00075 
00076     // Now call the parent class' declareOptions
00077     inherited::declareOptions(ol);
00078 }
00079 
00081 // build //
00083 void GetInputVMatrix::build()
00084 {
00085     inherited::build();
00086     build_();
00087 }
00088 
00090 // build_ //
00092 void GetInputVMatrix::build_()
00093 {
00094     weightsize_ = 0;
00095     if (source) {
00096         updateMtime(source);
00097         if(targetsize_ < 0) targetsize_ = 0;
00098         if(inputsize_ < 0) inputsize_ = source->inputsize();
00099 
00100         if (inputsize_ < 0) {
00101             PLERROR("In GetInputVMatrix::build_ - The source VMatrix doesn't have an inputsize defined");
00102         }
00103         indices.resize(source->inputsize());
00104         for (int i = 0; i < source->inputsize(); i++) {
00105             indices[i] = i;
00106         }
00107 
00108         // We need to rebuild the SelectColumnsVMatrix.
00109         inherited::build();
00110         if(inputsize_+targetsize_ != width_) PLERROR("In GetInputVMatrix:build_() : inputsize_ + targetsize_ != width_");
00111     }
00112 }
00113 
00115 // makeDeepCopyFromShallowCopy //
00117 void GetInputVMatrix::makeDeepCopyFromShallowCopy(CopiesMap& copies)
00118 {
00119     inherited::makeDeepCopyFromShallowCopy(copies);
00120 }
00121 
00122 } // end of namespace PLearn
00123 
00124 
00125 /*
00126   Local Variables:
00127   mode:c++
00128   c-basic-offset:4
00129   c-file-style:"stroustrup"
00130   c-file-offsets:((innamespace . 0)(inline-open . 0))
00131   indent-tabs-mode:nil
00132   fill-column:79
00133   End:
00134 */
00135 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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