PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // BinaryOpVMatrix.cc 00004 // 00005 // Copyright (C) 2005 Nicolas Chapados 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: BinaryOpVMatrix.cc 9980 2009-03-03 20:15:28Z tihocan $ 00037 ******************************************************* */ 00038 00039 // Authors: Nicolas Chapados 00040 00044 #include "BinaryOpVMatrix.h" 00045 00046 namespace PLearn { 00047 using namespace std; 00048 00049 00050 BinaryOpVMatrix::BinaryOpVMatrix() 00051 {} 00052 00053 BinaryOpVMatrix::BinaryOpVMatrix(VMat source1, VMat source2, const string& op, 00054 bool call_build_): 00055 inherited(call_build_), 00056 source1(source1), 00057 source2(source2), 00058 op(op) 00059 { 00060 if (call_build_) 00061 build_(); 00062 } 00063 00064 PLEARN_IMPLEMENT_OBJECT(BinaryOpVMatrix, 00065 "This VMat allows simple binary operations on two VMatrix.", 00066 "It is assumed that the two source matrices have the same size." 00067 ); 00068 00069 void BinaryOpVMatrix::getNewRow(int i, const Vec& v) const 00070 { 00071 PLASSERT( source1 && source2 ); 00072 row1.resize(source1.width()); 00073 row2.resize(source2.width()); 00074 PLASSERT( row1.size() == row2.size() ); 00075 PLASSERT( v.size() == row1.size() ); 00076 00077 source1->getRow(i, row1); 00078 source2->getRow(i, row2); 00079 00080 for (int i=0, n=row1.size() ; i<n ; ++i) 00081 v[i] = selected_op(row1[i], row2[i]); 00082 } 00083 00084 void BinaryOpVMatrix::declareOptions(OptionList& ol) 00085 { 00086 declareOption(ol, "source1", &BinaryOpVMatrix::source1, 00087 OptionBase::buildoption, 00088 "First source VMatrix to operate on"); 00089 00090 declareOption(ol, "source2", &BinaryOpVMatrix::source2, 00091 OptionBase::buildoption, 00092 "Second source VMatrix to operate on"); 00093 00094 declareOption(ol, "op", &BinaryOpVMatrix::op, OptionBase::buildoption, 00095 "Operation to perform; may be \"add\", \"sub\", \"mult\", \"div\""); 00096 00097 // Now call the parent class' declareOptions 00098 inherited::declareOptions(ol); 00099 } 00100 00101 void BinaryOpVMatrix::build_() 00102 { 00103 if (! source1) 00104 PLERROR("BinaryOpVMatrix::build_: source1 not defined"); 00105 if (! source2) 00106 PLERROR("BinaryOpVMatrix::build_: source2 not defined"); 00107 updateMtime(source1); 00108 updateMtime(source2); 00109 if (source1.length() != source2.length()) 00110 PLERROR("BinaryOpVMatrix::build_: source1 has %d rows but\n" 00111 "source2 has %d rows; both must have the same number of" 00112 " rows.\n", source1.length(), source2.length()); 00113 00114 if (source1.width() != source2.width()) 00115 PLERROR("BinaryOpVMatrix::build_: source1 has %d columns but\n" 00116 "source2 has %d columns; both must have the same number of" 00117 " columns.", source1.width(), source2.width()); 00118 00119 if (op == "add") 00120 selected_op = op_add; 00121 else if (op == "sub") 00122 selected_op = op_sub; 00123 else if (op == "mult") 00124 selected_op = op_mul; 00125 else if (op == "div") 00126 selected_op = op_div; 00127 else 00128 PLERROR("BinaryOpVMatrix::build_: unknown operation type \"%s\"; supported operatrions " 00129 "are \"add\", \"sub\", \"mult\", \"div\"", op.c_str()); 00130 00131 // Copy the metainformation from first VMat 00132 setMetaInfoFrom(source1); 00133 } 00134 00135 // ### Nothing to add here, simply calls build_ 00136 void BinaryOpVMatrix::build() 00137 { 00138 inherited::build(); 00139 build_(); 00140 } 00141 00142 void BinaryOpVMatrix::makeDeepCopyFromShallowCopy(CopiesMap& copies) 00143 { 00144 inherited::makeDeepCopyFromShallowCopy(copies); 00145 deepCopyField(row1, copies); 00146 deepCopyField(row2, copies); 00147 deepCopyField(source1, copies); 00148 deepCopyField(source2, copies); 00149 } 00150 00151 } // end of namespace PLearn 00152 00153 00154 /* 00155 Local Variables: 00156 mode:c++ 00157 c-basic-offset:4 00158 c-file-style:"stroustrup" 00159 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00160 indent-tabs-mode:nil 00161 fill-column:79 00162 End: 00163 */ 00164 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :