RefinementControl.h

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// This file is part of the ExaHyPE2 project. For conditions of distribution and
// use, please see the copyright notice at www.peano-framework.org
#pragma once
 
 
#include <vector>
#include <list>
 
#include "tarch/multicore/BooleanSemaphore.h"
#include "peano4/grid/GridControlEvent.h"
 
namespace exahype2 {
  enum class RefinementCommand {
    Keep, Refine, Erase
  };
 
  RefinementCommand getDefaultRefinementCommand();
 
  class RefinementControl;
  class RefinementControlService;
}
 
 
exahype2::RefinementCommand operator&&( exahype2::RefinementCommand lhs, exahype2::RefinementCommand rhs);
 
std::string toString( exahype2::RefinementCommand value );
 
class exahype2::RefinementControl {
  public:
    typedef std::list< std::pair<peano4::grid::GridControlEvent,int> >  NewEvents;
 
    struct SiblingEraseEvent {
      peano4::grid::GridControlEvent        event;
      int                                   lifetime;
      tarch::la::Vector<Dimensions,double>  parentCentre;
      tarch::la::Vector<Dimensions,double>  parentH;
      int                                   positionWithinParent;
    };
 
    typedef std::list< SiblingEraseEvent >  NewSiblingEraseEvents;
 
    friend class RefinementControlService;
 
    RefinementControl(double tolerance = 0.01);
    virtual ~RefinementControl();
 
    void clear();
 
 
    void addCommand(
      const tarch::la::Vector<Dimensions,double>&  x,
      const tarch::la::Vector<Dimensions,double>&  h,
      exahype2::RefinementCommand                  command,
      int                                          lifetime
    );
 
    void addCommand(
      const tarch::la::Vector<Dimensions,double>&  x,
      const tarch::la::Vector<Dimensions,double>&  h,
      exahype2::RefinementCommand                  command,
      int                                          lifetime,
      const tarch::la::Vector<Dimensions,int>&     relativePositionWithinFatherCell
    );
 
    std::string toString() const;
 
  private:
    static tarch::logging::Log  _log;
 
    static tarch::multicore::BooleanSemaphore  _semaphore;
 
    const double _Tolerance;
    
    NewEvents    _newEvents;
 
    NewSiblingEraseEvents _newSiblingEraseEvents;
 
    peano4::grid::GridControlEvent createEraseEvent(
      const tarch::la::Vector<Dimensions,double>&  x,
      const tarch::la::Vector<Dimensions,double>&  h
    ) const;
 
};