MueLu_LineDetectionFactory_decl.hpp

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#ifndef MUELU_LINEDETECTIONFACTORY_DECL_HPP
#define MUELU_LINEDETECTIONFACTORY_DECL_HPP

// same as in SemiCoarsenPFactory (TODO rework this)
#define  VERTICAL       1
#define  HORIZONTAL     2
#define  GRID_SUPPLIED -1

#include "MueLu_ConfigDefs.hpp"
#include "MueLu_LineDetectionFactory_fwd.hpp"

#include "MueLu_Level_fwd.hpp"
#include "MueLu_SingleLevelFactoryBase.hpp"

namespace MueLu {

  template <class Scalar = DefaultScalar,
            class LocalOrdinal = DefaultLocalOrdinal,
            class GlobalOrdinal = DefaultGlobalOrdinal,
            class Node = DefaultNode>
  class LineDetectionFactory : public SingleLevelFactoryBase {
#undef MUELU_LINEDETECTIONFACTORY_SHORT
#include "MueLu_UseShortNames.hpp"

  public:

    using coordinate_type       = typename Teuchos::ScalarTraits<SC>::coordinateType;
    using CoordinateMultiVector = typename Xpetra::MultiVector<coordinate_type, LO, GO, NO>;



    LineDetectionFactory() : Zorientation_(VERTICAL) { }

    virtual ~LineDetectionFactory() { }

    RCP<const ParameterList> GetValidParameterList() const;




    void DeclareInput(Level& currentLevel) const;




    void Build(Level& currentLevel) const;


  private:
    void sort_coordinates(LO numCoords, LO* OrigLoc,
                          coordinate_type* xvals,
                          coordinate_type* yvals,
                          coordinate_type* zvals,
                          coordinate_type* xtemp,
                          coordinate_type* ytemp,
                          coordinate_type* ztemp,
                          bool flipXY = false) const;

    LO ML_compute_line_info(LO LayerId[], LO VertLineId[],
                            LO Ndof, LO DofsPerNode,
                            LO MeshNumbering, LO NumNodesPerVertLine,
                            coordinate_type *xvals, coordinate_type *yvals, coordinate_type *zvals,
                            const Teuchos::Comm<int>& comm ) const ;

    void ML_az_dsort2(coordinate_type dlist[], LO N, LO list2[]) const;

    mutable LO Zorientation_;

  }; //class LineDetectionFactory

} //namespace MueLu

#define MUELU_LINEDETECTIONFACTORY_SHORT
#endif // MUELU_LINEDETECTIONFACTORY_DECL_HPP