Coin-All: /home/coin/SVN-release/CoinAll-1.1.0/Cbc/src/ClpAmplObjective.hpp Source File

00001 // Copyright (C) 2007, International Business Machines
00002 // Corporation and others.  All Rights Reserved.
00003 #ifndef ClpAmplObjective_H
00004 #define ClpAmplObjective_H
00005 
00006 #include "ClpObjective.hpp"
00007 #include "CoinPackedMatrix.hpp"
00008 
00009 //#############################################################################
00010 
00015 class ClpAmplObjective : public ClpObjective {
00016   
00017 public:
00018   
00020 
00021   
00028   virtual double * gradient(const ClpSimplex * model,
00029                             const double * solution, double & offset,bool refresh,
00030                             int includeLinear=2);
00032 
00034   virtual double reducedGradient(ClpSimplex * model, double * region,
00035                                  bool useFeasibleCosts);
00042   virtual double stepLength(ClpSimplex * model,
00043                             const double * solution,
00044                             const double * change,
00045                             double maximumTheta,
00046                             double & currentObj,
00047                             double & predictedObj,
00048                             double & thetaObj);
00050   virtual double objectiveValue(const ClpSimplex * model, const double * solution) const ;
00051   virtual void resize(int newNumberColumns) ; 
00053   virtual void deleteSome(int numberToDelete, const int * which) ; 
00055   virtual void reallyScale(const double * columnScale) ;
00059   virtual int markNonlinear(char * which);
00060   
00062   virtual void newXValues() ;
00064   
00065   
00067 
00068 
00069   ClpAmplObjective(); 
00070   
00072   ClpAmplObjective(void * amplInfo);
00073   
00076   ClpAmplObjective(const ClpAmplObjective & rhs);
00077   
00079   ClpAmplObjective & operator=(const ClpAmplObjective& rhs);
00080   
00082   virtual ~ClpAmplObjective ();
00083 
00085   virtual ClpObjective * clone() const;
00086 
00088 
00089 
00090 
00091   double * linearObjective() const;
00093 
00094   //---------------------------------------------------------------------------
00095   
00096 private:
00099   double offset_;
00101   void * amplObjective_;
00103   double * objective_;
00105   double * gradient_;
00107 };
00108 
00109 #endif