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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/dofs/dof_accessor.h>
Public Types | |
| using | AccessorData = typename InvalidAccessor< structdim, dim, spacedim >::AccessorData |
 Public Types inherited from InvalidAccessor< structdim, dim, dim > | |
| using | AccessorData = typename TriaAccessorBase< structdim, dim, spacedim >::AccessorData |
| Public Types inherited from TriaAccessorBase< structdim, dim, spacedim > | |
| using | LocalData = void * |
Public Member Functions | |
| DoFInvalidAccessor (const Triangulation< dim, spacedim > *parent=0, const int level=-1, const int index=-1, const AccessorData *local_data=0) | |
| DoFInvalidAccessor (const DoFInvalidAccessor< structdim, dim, spacedim > &) | |
| template<typename OtherAccessor > | |
| DoFInvalidAccessor (const OtherAccessor &) | |
| void | set_dof_index (const unsigned int i, const types::global_dof_index index, const unsigned int fe_index=DoFHandler< dim, spacedim >::default_fe_index) const |
| Public Member Functions inherited from InvalidAccessor< structdim, dim, dim > | |
| InvalidAccessor (const Triangulation< dim, spacedim > *parent=nullptr, const int level=-1, const int index=-1, const AccessorData *local_data=nullptr) | |
| InvalidAccessor (const InvalidAccessor &) | |
| InvalidAccessor (const OtherAccessor &) | |
| void | copy_from (const InvalidAccessor &) |
| bool | operator== (const InvalidAccessor &) const |
| bool | operator!= (const InvalidAccessor &) const |
| void | operator++ () const |
| void | operator-- () const |
| bool | used () const |
| bool | has_children () const |
| types::manifold_id | manifold_id () const |
| unsigned int | user_index () const |
| void | set_user_index (const unsigned int p) const |
| void | set_manifold_id (const types::manifold_id) const |
| Point< spacedim > & | vertex (const unsigned int i) const |
| typename ::internal::TriangulationImplementation::Iterators< dim, spacedim >::line_iterator | line (const unsigned int i) const |
| typename ::internal::TriangulationImplementation::Iterators< dim, spacedim >::quad_iterator | quad (const unsigned int i) const |
| Public Member Functions inherited from TriaAccessorBase< structdim, dim, spacedim > | |
| void | operator= (const TriaAccessorBase *)=delete |
| int | level () const |
| int | index () const |
| IteratorState::IteratorStates | state () const |
| const Triangulation< dim, spacedim > & | get_triangulation () const |
A class that represents DoF accessor objects to iterators that don't make sense such as quad iterators in on 1d meshes. This class can not be used to create objects (it will in fact throw an exception if this should ever be attempted but it sometimes allows code to be written in a simpler way in a dimension independent way. For example, it allows to write code that works on quad iterators that is dimension independent – i.e., also compiles in 1d – because quad iterators (via the current class) exist and are syntactically correct. You can not expect, however, to ever create an actual object of one of these iterators in 1d, meaning you need to expect to wrap the code block in which you use quad iterators into something like if (dim>1) – which makes eminent sense anyway.
This class provides the minimal interface necessary for Accessor classes to interact with Iterator classes. However, this is only for syntactic correctness, none of the functions do anything but generate errors.
Definition at line 1254 of file dof_accessor.h.
| using DoFInvalidAccessor< structdim, dim, spacedim >::AccessorData = typename InvalidAccessor<structdim, dim, spacedim>::AccessorData |
Propagate alias from base class to this class.
Definition at line 1261 of file dof_accessor.h.
| DoFInvalidAccessor< structdim, dim, spacedim >::DoFInvalidAccessor | ( | const Triangulation< dim, spacedim > * | parent = 0, |
| const int | level = -1, |
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| const int | index = -1, |
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| const AccessorData * | local_data = 0 |
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| ) |
Constructor. This class is used for iterators that do not make sense in a given dimension, for example quads for 1d meshes. Consequently, while the creation of such objects is syntactically valid, they make no semantic sense, and we generate an exception when such an object is actually generated.
Definition at line 46 of file dof_accessor.cc.
| DoFInvalidAccessor< structdim, dim, spacedim >::DoFInvalidAccessor | ( | const DoFInvalidAccessor< structdim, dim, spacedim > & | i | ) |
Copy constructor. This class is used for iterators that do not make sense in a given dimension, for example quads for 1d meshes. Consequently, while the creation of such objects is syntactically valid, they make no semantic sense, and we generate an exception when such an object is actually generated.
Definition at line 63 of file dof_accessor.cc.
| DoFInvalidAccessor< structdim, dim, spacedim >::DoFInvalidAccessor | ( | const OtherAccessor & | ) |
Conversion from other accessors to the current invalid one. This of course also leads to a run-time error.
Definition at line 2053 of file dof_accessor.h.
| void DoFInvalidAccessor< structdim, dim, spacedim >::set_dof_index | ( | const unsigned int | i, |
| const types::global_dof_index | index, | ||
| const unsigned int | fe_index = DoFHandler<dim, spacedim>::default_fe_index |
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| ) | const |
Set the index of the ith degree of freedom of this object to index. Since the current object doesn't point to anything useful, like all other functions in this class this function only throws an exception.
Definition at line 80 of file dof_accessor.cc.
1.8.17