AnalyticalCenter.h

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// 
//     Minotaur -- It's only 1/2 bull
// 
//     (C)opyright 2009 - 2025 The Minotaur Team.
// 
 
#ifndef MINOTAURANALYTICALCENTER_H
#define MINOTAURANALYTICALCENTER_H
 
#include <stack>
 
#include "Engine.h"
#include "Logger.h"
#include "Problem.h"
#include "Timer.h"
 
#include "Solution.h"
 
namespace Minotaur {
 
class AnalyticalCenter {
 
private: 
  EnvPtr env_;
 
  ProblemPtr minlp_;
  
  Timer *timer_;
 
  LoggerPtr logger_;
 
  static const std::string me_;
 
  EnginePtr nlpe_;
 
  double solAbsTol_;
  
  public:
  AnalyticalCenter(EnvPtr env, ProblemPtr minlp, EnginePtr nlpe);
 
  ~AnalyticalCenter();
 
  // Find center by adding auxiliary variable only to the nonlinear constraints
  // and keeping linear constraints as they are.
  void modifyOnlyNonlinear(double * &solC);
 
  // Find center by adding auxiliary variable to all inequalties, including
  // variable bounds.
  void modifyWhole(double * &solC);
 
private:
  void solveNLP_(double * &solC);
 
  };
 
  typedef AnalyticalCenter* AnalyticalCenterPtr;
}
#endif