libMesh::HPSingularity Class Reference

This class uses a user-provided list of singularity locations to choose between h refining and p elevation. More...

#include <hp_singular.h>

Public Member Functions
	HPSingularity ()
	Constructor.
	HPSingularity (const HPSingularity &)=default
	Copy/move ctor, copy/move assignment operator, and destructor are all explicitly defaulted for this simple class.
	HPSingularity (HPSingularity &&)=default
HPSingularity &	operator= (const HPSingularity &)=default
HPSingularity &	operator= (HPSingularity &&)=default
virtual	~HPSingularity ()=default
virtual void	select_refinement (System &system)
	This pure virtual function must be redefined in derived classes to take a mesh flagged for h refinement and potentially change the desired refinement type.

Public Attributes
std::list< Point >	singular_points
	This list, to be filled by the user, should include all singular points in the solution.

Detailed Description

This class uses a user-provided list of singularity locations to choose between h refining and p elevation.

Currently we assume that a set of elements has already been flagged for h refinement - any elements which do not contain a user-provided singular point are instead flagged for p refinement.

Author

Roy H. Stogner

Date

2006

Definition at line 49 of file hp_singular.h.

Constructor & Destructor Documentation

HPSingularity() [1/3]

libMesh::HPSingularity::HPSingularity ( )

inline

Constructor.

Definition at line 56 of file hp_singular.h.

  {
    libmesh_experimental();
  }

HPSingularity() [2/3]

libMesh::HPSingularity::HPSingularity ( const HPSingularity &  )

default

Copy/move ctor, copy/move assignment operator, and destructor are all explicitly defaulted for this simple class.

HPSingularity() [3/3]

libMesh::HPSingularity::HPSingularity ( HPSingularity &&  )

default

~HPSingularity()

virtual libMesh::HPSingularity::~HPSingularity ( )

virtualdefault

Member Function Documentation

operator=() [1/2]

HPSingularity & libMesh::HPSingularity::operator= ( const HPSingularity &  )

default

operator=() [2/2]

HPSingularity & libMesh::HPSingularity::operator= ( HPSingularity &&  )

default

select_refinement()

void libMesh::HPSingularity::select_refinement ( System &  system )

virtual

This pure virtual function must be redefined in derived classes to take a mesh flagged for h refinement and potentially change the desired refinement type.

Definition at line 36 of file hp_singular.C.

{
  LOG_SCOPE("select_refinement()", "HPSingularity");
 
  // The current mesh
  MeshBase & mesh = system.get_mesh();
 
  for (auto & elem : mesh.active_element_ptr_range())
    {
      // We're only checking elements that are already flagged for h
      // refinement
      if (elem->refinement_flag() != Elem::REFINE)
        continue;
 
      elem->set_p_refinement_flag(Elem::REFINE);
      elem->set_refinement_flag(Elem::DO_NOTHING);
 
      for (const auto & pt : singular_points)
        if (elem->contains_point(pt))
          {
            elem->set_p_refinement_flag(Elem::DO_NOTHING);
            elem->set_refinement_flag(Elem::REFINE);
            break;
          }
    }
}

References libMesh::Elem::DO_NOTHING, libMesh::System::get_mesh(), mesh, libMesh::Elem::REFINE, and singular_points.

Referenced by main().

Member Data Documentation

singular_points

std::list<Point> libMesh::HPSingularity::singular_points

This list, to be filled by the user, should include all singular points in the solution.

Definition at line 83 of file hp_singular.h.

Referenced by main(), and select_refinement().

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The documentation for this class was generated from the following files:

• include/error_estimation/hp_singular.h
• src/error_estimation/hp_singular.C