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Constraint.cpp

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00001 /*
00002     Copyright (c) 2005, Quentin Lequy and Romain Gaucher
00003     All rights reserved.
00004 
00005     Redistribution and use in source and binary forms, with or 
00006     without modification, are permitted provided that the following 
00007     conditions are met:
00008 
00009         * Redistributions of source code must retain the above copyright 
00010           notice, this list of conditions and the following disclaimer.
00011 
00012         * Redistributions in binary form must reproduce the above copyright 
00013           notice, this list of conditions and the following disclaimer in the 
00014           documentation and/or other materials provided with the distribution.
00015 
00016         * Neither the name of Quentin Lequy or Romain Gaucher nor the names 
00017           of its contributors may be used to endorse or promote products 
00018           derived from this software without specific prior written permission.
00019 
00020     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
00021     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
00022     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
00023     ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
00024     LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
00025     DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
00026     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
00027     AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
00028     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
00029     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030 */
00031 
00032 #include "Config.h"
00033 #include "Constraint.h"
00034 #include "Model.h"
00035 #include <iostream>
00036 
00037 namespace Modelib {
00038 
00043 Constraint::Constraint(Model & _m,VarId _id)
00044 {
00045   model = &_m;
00046   id = _id;
00047 }
00048 
00053 Constraint::Constraint(const Model & _m,VarId _id)
00054 {
00055   model = const_cast<Model *>( &_m );
00056   id = _id;
00057 }
00058 
00065 bool Constraint::Relax( float lagrangianValue )
00066 {
00067     //si le modèle est défini on appellera la fonction
00068     //RelaxConstraint qui effectue la tache
00069     if(model)
00070     {
00071         return model->RelaxConstraint( id, lagrangianValue );
00072     }
00073     else
00074         cerr << "Warning in Constraint::Relax : undefined Model" << endl;
00075     return false;
00076 }
00077 
00082 LagrangianParam Constraint::GetLagrangianParam() const
00083 {
00084    return LagrangianParam(const_cast<Model &>(*model),id);
00085 }
00086 
00090 void Constraint::Rename( const std::string & name )
00091 {
00092     //si le modèle est défini on appellera la fonction
00093     //RenameConstraint qui effectue la tache
00094     if(model)
00095         model->RenameConstraint( id, name );
00096     else
00097         cerr << "Warning in Constraint::Rename : undefined Model" << endl;
00098 }
00099 
00104 void Constraint::AddExpr(const Expr & expr)
00105 {
00106     //si le modèle est défini on appellera la fonction
00107     //AddToConstraint qui effectue la tache
00108     if(model)
00109         model->AddToConstraint( id, expr );
00110     else
00111         cerr << "Warning in Constraint::AddExpr : undefined Model" << endl;
00112 
00113 }
00114 
00117 Expr Constraint::GetExpr(bool secondMember) const
00118 {
00119     //si le modèle est défini on appellera la fonction
00120     //GetRelaxedConstraintExpr qui effectue la tache
00121     if(model)
00122     {
00123         Expr retour = model->GetRelaxedConstraintExpr( id, false );
00124         if(!secondMember)
00125            retour -= retour.GetConstant();
00126         return retour;
00127     }
00128     else
00129         cerr << "Warning in Constraint::GetExpr : undefined Model" << endl;
00130     return Expr();
00131 }
00132 
00135 Expr Constraint::GetRelaxedExpr(bool secondMember) const
00136 {
00137     //si le modèle est défini on appellera la fonction
00138     //GetRelaxedConstraintExpr qui effectue la tache
00139     if(model)
00140     {
00141         Expr retour = model->GetRelaxedConstraintExpr( id, true );
00142         if(!secondMember)
00143            retour -= retour.GetConstant();
00144         return retour;
00145     }
00146     else
00147         cerr << "Warning in Constraint::GetRelaxedExpr : undefined Model" << endl;
00148     return Expr();
00149 }
00150 
00153 float Constraint::GetSecondMember() const
00154 {
00155     //si le modèle est défini on appellera la fonction
00156     //GetSecondMember qui effectue la tache
00157     if(model)
00158         return model->GetSecondMember( id );
00159     else
00160         cerr << "Warning in Constraint::GetSecondMember : undefined Model" << endl;
00161     return 0.0f;
00162 
00163 }
00164 
00167 void Constraint::SetSecondMember(float value)
00168 {
00169     //si le modèle est défini on appellera la fonction
00170     //SetSecondMember qui effectue la tache
00171     if(model)
00172         model->SetSecondMember( id,value );
00173     else
00174         cerr << "Warning in Constraint::GetExpr : undefined Model" << endl;
00175 }
00176 
00177 #ifdef COMPILE_FOR_PYTHON
00178     #include "py_Constraint.cxx"
00179 #endif
00180 
00181 
00182 }

Généré le Sun Oct 2 19:13:12 2005 pour Modelib par  doxygen 1.4.4