ffc_23.h

利用C

  /// Tabulate the local-to-global mapping of dofs on a cell
  virtual void tabulate_dofs(unsigned int* dofs,
                             const ufc::mesh& m,
                             const ufc::cell& c) const
  {
    dofs[0] = 10*c.entity_indices[3][0];
    dofs[1] = 10*c.entity_indices[3][0] + 1;
    dofs[2] = 10*c.entity_indices[3][0] + 2;
    dofs[3] = 10*c.entity_indices[3][0] + 3;
    dofs[4] = 10*c.entity_indices[3][0] + 4;
    dofs[5] = 10*c.entity_indices[3][0] + 5;
    dofs[6] = 10*c.entity_indices[3][0] + 6;
    dofs[7] = 10*c.entity_indices[3][0] + 7;
    dofs[8] = 10*c.entity_indices[3][0] + 8;
    dofs[9] = 10*c.entity_indices[3][0] + 9;
  }

  /// Tabulate the local-to-local mapping from facet dofs to cell dofs
  virtual void tabulate_facet_dofs(unsigned int* dofs,
                                   unsigned int facet) const
  {
    switch ( facet )
    {
    case 0:
      
      break;
    case 1:
      
      break;
    case 2:
      
      break;
    case 3:
      
      break;
    }
  }

  /// Tabulate the local-to-local mapping of dofs on entity (d, i)
  virtual void tabulate_entity_dofs(unsigned int* dofs,
                                    unsigned int d, unsigned int i) const
  {
    throw std::runtime_error("Not implemented (introduced in UFC v1.1).");
  }

  /// Tabulate the coordinates of all dofs on a cell
  virtual void tabulate_coordinates(double** coordinates,
                                    const ufc::cell& c) const
  {
    const double * const * x = c.coordinates;
    coordinates[0][0] = x[0][0];
    coordinates[0][1] = x[0][1];
    coordinates[0][2] = x[0][2];
    coordinates[1][0] = 0.5*x[0][0] + 0.5*x[1][0];
    coordinates[1][1] = 0.5*x[0][1] + 0.5*x[1][1];
    coordinates[1][2] = 0.5*x[0][2] + 0.5*x[1][2];
    coordinates[2][0] = x[1][0];
    coordinates[2][1] = x[1][1];
    coordinates[2][2] = x[1][2];
    coordinates[3][0] = 0.5*x[0][0] + 0.5*x[2][0];
    coordinates[3][1] = 0.5*x[0][1] + 0.5*x[2][1];
    coordinates[3][2] = 0.5*x[0][2] + 0.5*x[2][2];
    coordinates[4][0] = 0.5*x[1][0] + 0.5*x[2][0];
    coordinates[4][1] = 0.5*x[1][1] + 0.5*x[2][1];
    coordinates[4][2] = 0.5*x[1][2] + 0.5*x[2][2];
    coordinates[5][0] = x[2][0];
    coordinates[5][1] = x[2][1];
    coordinates[5][2] = x[2][2];
    coordinates[6][0] = 0.5*x[0][0] + 0.5*x[3][0];
    coordinates[6][1] = 0.5*x[0][1] + 0.5*x[3][1];
    coordinates[6][2] = 0.5*x[0][2] + 0.5*x[3][2];
    coordinates[7][0] = 0.5*x[1][0] + 0.5*x[3][0];
    coordinates[7][1] = 0.5*x[1][1] + 0.5*x[3][1];
    coordinates[7][2] = 0.5*x[1][2] + 0.5*x[3][2];
    coordinates[8][0] = 0.5*x[2][0] + 0.5*x[3][0];
    coordinates[8][1] = 0.5*x[2][1] + 0.5*x[3][1];
    coordinates[8][2] = 0.5*x[2][2] + 0.5*x[3][2];
    coordinates[9][0] = x[3][0];
    coordinates[9][1] = x[3][1];
    coordinates[9][2] = x[3][2];
  }

  /// Return the number of sub dof maps (for a mixed element)
  virtual unsigned int num_sub_dof_maps() const
  {
    return 1;
  }

  /// Create a new dof_map for sub dof map i (for a mixed element)
  virtual ufc::dof_map* create_sub_dof_map(unsigned int i) const
  {
    return new ffc_23_dof_map_0_2();
  }

};

/// This class defines the interface for a local-to-global mapping of
/// degrees of freedom (dofs).

class ffc_23_dof_map_0: public ufc::dof_map
{
private:

  unsigned int __global_dimension;

public:

  /// Constructor
  ffc_23_dof_map_0() : ufc::dof_map()
  {
    __global_dimension = 0;
  }

  /// Destructor
  virtual ~ffc_23_dof_map_0()
  {
    // Do nothing
  }

  /// Return a string identifying the dof map
  virtual const char* signature() const
  {
    return "FFC dof map for Mixed finite element: [Discontinuous Lagrange finite element of degree 2 on a tetrahedron, Discontinuous Lagrange finite element of degree 2 on a tetrahedron, Discontinuous Lagrange finite element of degree 2 on a tetrahedron]";
  }

  /// Return true iff mesh entities of topological dimension d are needed
  virtual bool needs_mesh_entities(unsigned int d) const
  {
    switch ( d )
    {
    case 0:
      return false;
      break;
    case 1:
      return false;
      break;
    case 2:
      return false;
      break;
    case 3:
      return true;
      break;
    }
    return false;
  }

  /// Initialize dof map for mesh (return true iff init_cell() is needed)
  virtual bool init_mesh(const ufc::mesh& m)
  {
    __global_dimension = 30*m.num_entities[3];
    return false;
  }

  /// Initialize dof map for given cell
  virtual void init_cell(const ufc::mesh& m,
                         const ufc::cell& c)
  {
    // Do nothing
  }

  /// Finish initialization of dof map for cells
  virtual void init_cell_finalize()
  {
    // Do nothing
  }

  /// Return the dimension of the global finite element function space
  virtual unsigned int global_dimension() const
  {
    return __global_dimension;
  }

  /// Return the dimension of the local finite element function space
  virtual unsigned int local_dimension() const
  {
    return 30;
  }

  // Return the geometric dimension of the coordinates this dof map provides
  virtual unsigned int geometric_dimension() const
  {
    return 3;
  }

  /// Return the number of dofs on each cell facet
  virtual unsigned int num_facet_dofs() const
  {
    return 0;
  }

  /// Return the number of dofs associated with each cell entity of dimension d
  virtual unsigned int num_entity_dofs(unsigned int d) const
  {
    throw std::runtime_error("Not implemented (introduced in UFC v1.1).");
  }

  /// Tabulate the local-to-global mapping of dofs on a cell
  virtual void tabulate_dofs(unsigned int* dofs,
                             const ufc::mesh& m,
                             const ufc::cell& c) const
  {
    dofs[0] = 10*c.entity_indices[3][0];
    dofs[1] = 10*c.entity_indices[3][0] + 1;
    dofs[2] = 10*c.entity_indices[3][0] + 2;
    dofs[3] = 10*c.entity_indices[3][0] + 3;
    dofs[4] = 10*c.entity_indices[3][0] + 4;
    dofs[5] = 10*c.entity_indices[3][0] + 5;
    dofs[6] = 10*c.entity_indices[3][0] + 6;
    dofs[7] = 10*c.entity_indices[3][0] + 7;
    dofs[8] = 10*c.entity_indices[3][0] + 8;
    dofs[9] = 10*c.entity_indices[3][0] + 9;
    unsigned int offset = 10*m.num_entities[3];
    dofs[10] = offset + 10*c.entity_indices[3][0];
    dofs[11] = offset + 10*c.entity_indices[3][0] + 1;
    dofs[12] = offset + 10*c.entity_indices[3][0] + 2;
    dofs[13] = offset + 10*c.entity_indices[3][0] + 3;
    dofs[14] = offset + 10*c.entity_indices[3][0] + 4;
    dofs[15] = offset + 10*c.entity_indices[3][0] + 5;
    dofs[16] = offset + 10*c.entity_indices[3][0] + 6;
    dofs[17] = offset + 10*c.entity_indices[3][0] + 7;
    dofs[18] = offset + 10*c.entity_indices[3][0] + 8;
    dofs[19] = offset + 10*c.entity_indices[3][0] + 9;
    offset = offset + 10*m.num_entities[3];
    dofs[20] = offset + 10*c.entity_indices[3][0];
    dofs[21] = offset + 10*c.entity_indices[3][0] + 1;
    dofs[22] = offset + 10*c.entity_indices[3][0] + 2;
    dofs[23] = offset + 10*c.entity_indices[3][0] + 3;
    dofs[24] = offset + 10*c.entity_indices[3][0] + 4;
    dofs[25] = offset + 10*c.entity_indices[3][0] + 5;
    dofs[26] = offset + 10*c.entity_indices[3][0] + 6;
    dofs[27] = offset + 10*c.entity_indices[3][0] + 7;
    dofs[28] = offset + 10*c.entity_indices[3][0] + 8;
    dofs[29] = offset + 10*c.entity_indices[3][0] + 9;
  }

  /// Tabulate the local-to-local mapping from facet dofs to cell dofs
  virtual void tabulate_facet_dofs(unsigned int* dofs,
                                   unsigned int facet) const
  {
    switch ( facet )
    {
    case 0:
      
      break;
    case 1:
      
      break;
    case 2:
      
      break;
    case 3:
      
      break;
    }
  }

  /// Tabulate the local-to-local mapping of dofs on entity (d, i)
  virtual void tabulate_entity_dofs(unsigned int* dofs,
                                    unsigned int d, unsigned int i) const
  {
    throw std::runtime_error("Not implemented (introduced in UFC v1.1).");
  }

  /// Tabulate the coordinates of all dofs on a cell
  virtual void tabulate_coordinates(double** coordinates,
                                    const ufc::cell& c) const
  {
    const double * const * x = c.coordinates;
    coordinates[0][0] = x[0][0];
    coordinates[0][1] = x[0][1];
    coordinates[0][2] = x[0][2];
    coordinates[1][0] = 0.5*x[0][0] + 0.5*x[1][0];
    coordinates[1][1] = 0.5*x[0][1] + 0.5*x[1][1];
    coordinates[1][2] = 0.5*x[0][2] + 0.5*x[1][2];
    coordinates[2][0] = x[1][0];
    coordinates[2][1] = x[1][1];
    coordinates[2][2] = x[1][2];
    coordinates[3][0] = 0.5*x[0][0] + 0.5*x[2][0];
    coordinates[3][1] = 0.5*x[0][1] + 0.5*x[2][1];
    coordinates[3][2] = 0.5*x[0][2] + 0.5*x[2][2];
    coordinates[4][0] = 0.5*x[1][0] + 0.5*x[2][0];
    coordinates[4][1] = 0.5*x[1][1] + 0.5*x[2][1];
    coordinates[4][2] = 0.5*x[1][2] + 0.5*x[2][2];
    coordinates[5][0] = x[2][0];
    coordinates[5][1] = x[2][1];
    coordinates[5][2] = x[2][2];
    coordinates[6][0] = 0.5*x[0][0] + 0.5*x[3][0];
    coordinates[6][1] = 0.5*x[0][1] + 0.5*x[3][1];
    coordinates[6][2] = 0.5*x[0][2] + 0.5*x[3][2];
    coordinates[7][0] = 0.5*x[1][0] + 0.5*x[3][0];
    coordinates[7][1] = 0.5*x[1][1] + 0.5*x[3][1];
    coordinates[7][2] = 0.5*x[1][2] + 0.5*x[3][2];
    coordinates[8][0] = 0.5*x[2][0] + 0.5*x[3][0];
    coordinates[8][1] = 0.5*x[2][1] + 0.5*x[3][1];
    coordinates[8][2] = 0.5*x[2][2] + 0.5*x[3][2];
    coordinates[9][0] = x[3][0];
    coordinates[9][1] = x[3][1];
    coordinates[9][2] = x[3][2];
    coordinates[10][0] = x[0][0];
    coordinates[10][1] = x[0][1];
    coordinates[10][2] = x[0][2];
    coordinates[11][0] = 0.5*x[0][0] + 0.5*x[1][0];
    coordinates[11][1] = 0.5*x[0][1] + 0.5*x[1][1];
    coordinates[11][2] = 0.5*x[0][2] + 0.5*x[1][2];
    coordinates[12][0] = x[1][0];
    coordinates[12][1] = x[1][1];
    coordinates[12][2] = x[1][2];
    coordinates[13][0] = 0.5*x[0][0] + 0.5*x[2][0];
    coordinates[13][1] = 0.5*x[0][1] + 0.5*x[2][1];
    coordinates[13][2] = 0.5*x[0][2] + 0.5*x[2][2];
    coordinates[14][0] = 0.5*x[1][0] + 0.5*x[2][0];
    coordinates[14][1] = 0.5*x[1][1] + 0.5*x[2][1];
    coordinates[14][2] = 0.5*x[1][2] + 0.5*x[2][2];
    coordinates[15][0] = x[2][0];
    coordinates[15][1] = x[2][1];
    coordinates[15][2] = x[2][2];
    coordinates[16][0] = 0.5*x[0][0] + 0.5*x[3][0];
    coordinates[16][1] = 0.5*x[0][1] + 0.5*x[3][1];
    coordinates[16][2] = 0.5*x[0][2] + 0.5*x[3][2];
    coordinates[17][0] = 0.5*x[1][0] + 0.5*x[3][0];
    coordinates[17][1] = 0.5*x[1][1] + 0.5*x[3][1];
    coordinates[17][2] = 0.5*x[1][2] + 0.5*x[3][2];
    coordinates[18][0] = 0.5*x[2][0] + 0.5*x[3][0];
    coordinates[18][1] = 0.5*x[2][1] + 0.5*x[3][1];
    coordinates[18][2] = 0.5*x[2][2] + 0.5*x[3][2];
    coordinates[19][0] = x[3][0];
    coordinates[19][1] = x[3][1];
    coordinates[19][2] = x[3][2];
    coordinates[20][0] = x[0][0];
    coordinates[20][1] = x[0][1];
    coordinates[20][2] = x[0][2];
    coordinates[21][0] = 0.5*x[0][0] + 0.5*x[1][0];
    coordinates[21][1] = 0.5*x[0][1] + 0.5*x[1][1];
    coordinates[21][2] = 0.5*x[0][2] + 0.5*x[1][2];
    coordinates[22][0] = x[1][0];
    coordinates[22][1] = x[1][1];
    coordinates[22][2] = x[1][2];
    coordinates[23][0] = 0.5*x[0][0] + 0.5*x[2][0];
    coordinates[23][1] = 0.5*x[0][1] + 0.5*x[2][1];
    coordinates[23][2] = 0.5*x[0][2] + 0.5*x[2][2];
    coordinates[24][0] = 0.5*x[1][0] + 0.5*x[2][0];
    coordinates[24][1] = 0.5*x[1][1] + 0.5*x[2][1];
    coordinates[24][2] = 0.5*x[1][2] + 0.5*x[2][2];
    coordinates[25][0] = x[2][0];
    coordinates[25][1] = x[2][1];
    coordinates[25][2] = x[2][2];
    coordinates[26][0] = 0.5*x[0][0] + 0.5*x[3][0];
    coordinates[26][1] = 0.5*x[0][1] + 0.5*x[3][1];
    coordinates[26][2] = 0.5*x[0][2] + 0.5*x[3][2];
    coordinates[27][0] = 0.5*x[1][0] + 0.5*x[3][0];
    coordinates[27][1] = 0.5*x[1][1] + 0.5*x[3][1];
    coordinates[27][2] = 0.5*x[1][2] + 0.5*x[3][2];
    coordinates[28][0] = 0.5*x[2][0] + 0.5*x[3][0];
    coordinates[28][1] = 0.5*x[2][1] + 0.5*x[3][1];
    coordinates[28][2] = 0.5*x[2][2] + 0.5*x[3][2];
    coordinates[29][0] = x[3][0];
    coordinates[29][1] = x[3][1];
    coordinates[29][2] = x[3][2];
  }

  /// Return the number of sub dof maps (for a mixed element)
  virtual unsigned int num_sub_dof_maps() const
  {
    return 3;
  }

  /// Create a new dof_map for sub dof map i (for a mixed element)
  virtual ufc::dof_map* create_sub_dof_map(unsigned int i) const
  {
    switch ( i )
    {
    case 0:
      return new ffc_23_dof_map_0_0();
      break;
    case 1:
      return new ffc_23_dof_map_0_1();
      break;
    case 2:
      return new ffc_23_dof_map_0_2();
      break;
    }
    return 0;
  }

};

#endif