dof_assignment_common.hpp

// FEAT3: Finite Element Analysis Toolbox, Version 3
// Copyright (C) 2010 by Stefan Turek & the FEAT group
// FEAT3 is released under the GNU General Public License version 3,
// see the file 'copyright.txt' in the top level directory for details.
 
#pragma once
 
// includes, FEAT
#include <kernel/space/dof_assignment_base.hpp>
#include <kernel/adjacency/adjactor.hpp>
 
namespace FEAT
{
  namespace Space
  {
    template<
      typename Space_,
      int shape_dim_,
      typename DataType_>
    class DofAssignmentNull :
      public DofAssignmentBase<Space_, shape_dim_, DataType_>
    {
      typedef DofAssignmentBase<Space_, shape_dim_, DataType_> BaseClass;
 
    public:
      explicit DofAssignmentNull(const Space_& space) :
        BaseClass(space)
      {
      }
 
      int get_max_assigned_dofs() const
      {
        return 0;
      }
 
      int get_num_assigned_dofs() const
      {
        return 0;
      }
 
      Index get_index(int /*assign_idx*/) const
      {
        XABORTM("invalid call of DofAssignmentNull::get_index()");
      }
    }; // class DofAssignmentNull<...>
 
    template<
      typename Space_,
      int shape_dim_,
      typename DataType_,
      int dofs_per_cell_ = 1>
    class DofAssignmentIdentity :
      public DofAssignmentBase<Space_, shape_dim_, DataType_>
    {
      typedef DofAssignmentBase<Space_, shape_dim_, DataType_> BaseClass;
 
    public:
      explicit DofAssignmentIdentity(const Space_& space) :
        BaseClass(space)
      {
      }
 
      int get_max_assigned_dofs() const
      {
        return dofs_per_cell_;
      }
 
      int get_num_assigned_dofs() const
      {
        return dofs_per_cell_;
      }
 
      Index get_index(int assign_idx) const
      {
        return Index(dofs_per_cell_) * this->_cell_index + Index(assign_idx);
      }
    }; // class DofAssignmentIdentity
 
    template<
      typename Space_,
      int shape_dim_,
      typename DataType_,
      int dof_dim_,
      int dofs_per_cell_ = 1>
    class DofAssignmentSingleEntity :
      public DofAssignmentNull<Space_, shape_dim_, DataType_>
    {
      typedef DofAssignmentNull<Space_, shape_dim_, DataType_> BaseClass;
 
    public:
      explicit DofAssignmentSingleEntity(const Space_& space) :
        BaseClass(space)
      {
      }
    };
 
    template<
      typename Space_,
      int shape_dim_,
      typename DataType_,
      int dofs_per_cell_>
    class DofAssignmentSingleEntity<Space_, shape_dim_, DataType_, shape_dim_, dofs_per_cell_> :
      public DofAssignmentIdentity<Space_, shape_dim_, DataType_>
    {
      typedef DofAssignmentIdentity<Space_, shape_dim_, DataType_> BaseClass;
 
    public:
      explicit DofAssignmentSingleEntity(const Space_& space) :
        BaseClass(space)
      {
      }
    };
  } // namespace Space
} // namespace FEAT