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Reference documentation for deal.II version 9.2.0
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Reference documentation for deal.II version 9.2.0
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#include <deal.II/numerics/data_out_faces.h>
Public Types | |
| using | cell_iterator = typename DataOut_DoFData< DoFHandlerType, dimension - 1, dimension >::cell_iterator |
| using | FaceDescriptor = typename std::pair< cell_iterator, unsigned int > |
 Public Types inherited from DataOut_DoFData< DoFHandler< dim >, DoFHandler< dim > ::dimension - 1, DoFHandler< dim > ::dimension > | |
| enum | DataVectorType |
| using | cell_iterator = typename Triangulation< DoFHandler< dim > ::dimension, DoFHandler< dim > ::space_dimension >::cell_iterator |
Public Member Functions | |
| DataOutFaces (const bool surface_only=true) | |
| virtual void | build_patches (const unsigned int n_subdivisions=0) |
| virtual void | build_patches (const Mapping< dimension > &mapping, const unsigned int n_subdivisions=0) |
| virtual FaceDescriptor | first_face () |
| virtual FaceDescriptor | next_face (const FaceDescriptor &face) |
| Public Member Functions inherited from DataOut_DoFData< DoFHandler< dim >, DoFHandler< dim > ::dimension - 1, DoFHandler< dim > ::dimension > | |
| DataOut_DoFData () | |
| virtual | ~DataOut_DoFData () override |
| void | attach_dof_handler (const DoFHandler< dim > &) |
| void | attach_triangulation (const Triangulation< DoFHandler< dim > ::dimension, DoFHandler< dim > ::space_dimension > &) |
| void | add_data_vector (const VectorType &data, const std::vector< std::string > &names, const DataVectorType type=type_automatic, const std::vector< DataComponentInterpretation::DataComponentInterpretation > &data_component_interpretation=std::vector< DataComponentInterpretation::DataComponentInterpretation >()) |
| void | add_data_vector (const VectorType &data, const std::string &name, const DataVectorType type=type_automatic, const std::vector< DataComponentInterpretation::DataComponentInterpretation > &data_component_interpretation=std::vector< DataComponentInterpretation::DataComponentInterpretation >()) |
| void | add_data_vector (const DoFHandler< dim > &dof_handler, const VectorType &data, const std::vector< std::string > &names, const std::vector< DataComponentInterpretation::DataComponentInterpretation > &data_component_interpretation=std::vector< DataComponentInterpretation::DataComponentInterpretation >()) |
| void | add_data_vector (const DoFHandler< dim > &dof_handler, const VectorType &data, const std::string &name, const std::vector< DataComponentInterpretation::DataComponentInterpretation > &data_component_interpretation=std::vector< DataComponentInterpretation::DataComponentInterpretation >()) |
| void | add_data_vector (const VectorType &data, const DataPostprocessor< DoFHandler< dim > ::space_dimension > &data_postprocessor) |
| void | add_data_vector (const DoFHandler< dim > &dof_handler, const VectorType &data, const DataPostprocessor< DoFHandler< dim > ::space_dimension > &data_postprocessor) |
| void | add_mg_data_vector (const DoFHandler< dim > &dof_handler, const MGLevelObject< VectorType > &data, const std::vector< std::string > &names, const std::vector< DataComponentInterpretation::DataComponentInterpretation > &data_component_interpretation=std::vector< DataComponentInterpretation::DataComponentInterpretation >()) |
| void | add_mg_data_vector (const DoFHandler< dim > &dof_handler, const MGLevelObject< VectorType > &data, const std::string &name) |
| void | clear_data_vectors () |
| void | clear_input_data_references () |
| void | merge_patches (const DataOut_DoFData< DoFHandlerType2, patch_dim, patch_space_dim > &source, const Point< patch_space_dim > &shift=Point< patch_space_dim >()) |
| virtual void | clear () |
| std::size_t | memory_consumption () const |
| Public Member Functions inherited from DataOutInterface< patch_dim, patch_space_dim > | |
| DataOutInterface () | |
| virtual | ~DataOutInterface ()=default |
| void | write_dx (std::ostream &out) const |
| void | write_eps (std::ostream &out) const |
| void | write_gmv (std::ostream &out) const |
| void | write_gnuplot (std::ostream &out) const |
| void | write_povray (std::ostream &out) const |
| void | write_tecplot (std::ostream &out) const |
| void | write_tecplot_binary (std::ostream &out) const |
| void | write_ucd (std::ostream &out) const |
| void | write_vtk (std::ostream &out) const |
| void | write_vtu (std::ostream &out) const |
| void | write_vtu_in_parallel (const std::string &filename, MPI_Comm comm) const |
| void | write_pvtu_record (std::ostream &out, const std::vector< std::string > &piece_names) const |
| std::string | write_vtu_with_pvtu_record (const std::string &directory, const std::string &filename_without_extension, const unsigned int counter, const MPI_Comm &mpi_communicator, const unsigned int n_digits_for_counter=numbers::invalid_unsigned_int, const unsigned int n_groups=0) const |
| void | write_svg (std::ostream &out) const |
| void | write_deal_II_intermediate (std::ostream &out) const |
| XDMFEntry | create_xdmf_entry (const DataOutBase::DataOutFilter &data_filter, const std::string &h5_filename, const double cur_time, MPI_Comm comm) const |
| XDMFEntry | create_xdmf_entry (const DataOutBase::DataOutFilter &data_filter, const std::string &h5_mesh_filename, const std::string &h5_solution_filename, const double cur_time, MPI_Comm comm) const |
| void | write_xdmf_file (const std::vector< XDMFEntry > &entries, const std::string &filename, MPI_Comm comm) const |
| void | write_hdf5_parallel (const DataOutBase::DataOutFilter &data_filter, const std::string &filename, MPI_Comm comm) const |
| void | write_hdf5_parallel (const DataOutBase::DataOutFilter &data_filter, const bool write_mesh_file, const std::string &mesh_filename, const std::string &solution_filename, MPI_Comm comm) const |
| void | write_filtered_data (DataOutBase::DataOutFilter &filtered_data) const |
| void | write (std::ostream &out, const DataOutBase::OutputFormat output_format=DataOutBase::default_format) const |
| void | set_default_format (const DataOutBase::OutputFormat default_format) |
| void | set_flags (const FlagType &flags) |
| std::string | default_suffix (const DataOutBase::OutputFormat output_format=DataOutBase::default_format) const |
| void | parse_parameters (ParameterHandler &prm) |
| std::size_t | memory_consumption () const |
Static Public Attributes | |
| static const unsigned int | dimension = DoFHandlerType::dimension |
| static const unsigned int | space_dimension = DoFHandlerType::space_dimension |
Private Member Functions | |
| void | build_one_patch (const FaceDescriptor *cell_and_face, internal::DataOutFacesImplementation::ParallelData< dimension, dimension > &data, DataOutBase::Patch< dimension - 1, space_dimension > &patch) |
Private Attributes | |
| const bool | surface_only |
This class generates output from faces of a triangulation. It might be used to generate output only for the surface of the triangulation (this is the default of this class), or for all faces of active cells, as specified in the constructor. The output of this class is a set of patches (as defined by the class DataOutBase::Patch()), one for each face for which output is to be generated. These patches can then be written in several graphical data formats by the functions of the underlying classes.
The interface of this class is copied from the DataOut class. Furthermore, they share the common parent class DataOut_DoFData. See the reference of these two classes for a discussion of the interface.
The sequence of faces to generate patches from is generated in the same way as in the DataOut class; see there for a description of the respective interface. The functions generating the sequence of faces which shall be used to generate output, are called first_face() and next_face().
Since we need to initialize objects of type FEValues with the faces generated from these functions, it is not sufficient that they only return face iterators. Rather, we need a pair of cell and the number of the face, as the values of finite element fields need not necessarily be unique on a face (think of discontinuous finite elements, where the value of the finite element field depend on the direction from which you approach a face, thus it is necessary to use a pair of cell and face, rather than only a face iterator). Therefore, this class defines an alias which creates a type FaceDescriptor that is an abbreviation for a pair of cell iterator and face number. The functions first_face and next_face operate on objects of this type.
Extending this class might, for example, be useful if you only want output from certain portions of the boundary, e.g. as indicated by the boundary indicator of the respective faces. However, it is also conceivable that one generates patches not from boundary faces, but from interior faces that are selected due to other criteria; one application might be to use only those faces where one component of the solution attains a certain value, in order to display the values of other solution components on these faces. Other applications certainly exist, for which the author is not imaginative enough.
dim equals the dimension of the DoFHandler type given as the second template argument, i.e., if dim == DoFHandlerType::dimension. This redundancy is a historical relic from the time where the library had only a single DoFHandler class and this class consequently only a single template argument.Definition at line 117 of file data_out_faces.h.
| using DataOutFaces< dim, DoFHandlerType >::cell_iterator = typename DataOut_DoFData<DoFHandlerType, dimension - 1, dimension>::cell_iterator |
Alias to the iterator type of the dof handler class under consideration.
Definition at line 140 of file data_out_faces.h.
| using DataOutFaces< dim, DoFHandlerType >::FaceDescriptor = typename std::pair<cell_iterator, unsigned int> |
Declare a way to describe a face which we would like to generate output for. The usual way would, of course, be to use an object of type DoFHandler<dim>::face_iterator, but since we have to describe faces to objects of type FEValues, we can only represent faces by pairs of a cell and the number of the face. This pair is here aliased to a name that is better to type.
Definition at line 197 of file data_out_faces.h.
| DataOutFaces< dim, DoFHandlerType >::DataOutFaces | ( | const bool | surface_only = true | ) |
Constructor determining whether a surface mesh (default) or the whole wire basket is written.
Definition at line 84 of file data_out_faces.cc.
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This is the central function of this class since it builds the list of patches to be written by the low-level functions of the base class. A patch is, in essence, some intermediate representation of the data on each face of a triangulation and DoFHandler object that can then be used to write files in some format that is readable by visualization programs.
You can find an overview of the use of this function in the general documentation of this class. An example is also provided in the documentation of this class's base class DataOut_DoFData.
| n_subdivisions | See DataOut::build_patches() for an extensive description of this parameter. |
Definition at line 321 of file data_out_faces.cc.
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Same as above, except that the additional first parameter defines a mapping that is to be used in the generation of output. If n_subdivisions>1, the points interior of subdivided patches which originate from cells at the boundary of the domain can be computed using the mapping, i.e. a higher order mapping leads to a representation of a curved boundary by using more subdivisions.
Even for non-curved cells the mapping argument can be used for the Eulerian mappings (see class MappingQ1Eulerian) where a mapping is used not only to determine the position of points interior to a cell, but also of the vertices. It offers an opportunity to watch the solution on a deformed triangulation on which the computation was actually carried out, even if the mesh is internally stored in its undeformed configuration and the deformation is only tracked by an additional vector that holds the deformation of each vertex.
mapping argument should be replaced by a hp::MappingCollection in case of a hp::DoFHandler. Definition at line 331 of file data_out_faces.cc.
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Return the first face which we want output for. The default implementation returns the first face of a (locally owned) active cell or, if the surface_only option was set in the destructor (as is the default), the first such face that is located on the boundary.
If you want to use a different logic to determine which faces should contribute to the creation of graphical output, you can overload this function in a derived class.
Definition at line 420 of file data_out_faces.cc.
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Return the next face after which we want output for. If there are no more faces, dofs->end() is returned as the first component of the return value.
The default implementation returns the next face of a (locally owned) active cell, or the next such on the boundary (depending on whether the surface_only option was provided to the constructor).
This function traverses the mesh active cell by active cell (restricted to locally owned cells), and then through all faces of the cell. As a result, interior faces are output twice, a feature that is useful for discontinuous Galerkin methods or if a DataPostprocessor is used that might produce results that are discontinuous between cells).
This function can be overloaded in a derived class to select a different set of faces. Note that the default implementation assumes that the given face is active, which is guaranteed as long as first_face() is also used from the default implementation. Overloading only one of the two functions should be done with care.
Definition at line 441 of file data_out_faces.cc.
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Build one patch. This function is called in a WorkStream context.
Definition at line 94 of file data_out_faces.cc.
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An abbreviation for the dimension of the DoFHandler object we work with. Faces are then dimension-1 dimensional objects.
Definition at line 126 of file data_out_faces.h.
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An abbreviation for the spatial dimension within which the triangulation and DoFHandler are embedded in.
Definition at line 132 of file data_out_faces.h.
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Parameter deciding between surface meshes and full wire basket.
Definition at line 241 of file data_out_faces.h.
1.8.17