Reference documentation for deal.II version 9.5.0
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#include <deal.II/fe/mapping_q1.h>
Static Public Attributes | |
static MappingQ< dim, spacedim > | mapping |
Many places in the library by default use (bi-,tri-)linear mappings unless users explicitly provide a different mapping to use. In these cases, the called function has to create a \(Q_1\) mapping object, i.e., an object of kind MappingQ(1). This is costly. It would also be costly to create such objects as static objects in the affected functions, because static objects are never destroyed throughout the lifetime of a program, even though they only have to be created once the first time code runs through a particular function.
In order to avoid creation of (static or dynamic) \(Q_1\) mapping objects in these contexts throughout the library, this class defines a static \(Q_1\) mapping object. This object can then be used in all of those places where such an object is needed.
ReferenceCells::get_hypercube<dim>().get_default_linear_mapping()
instead. Definition at line 92 of file mapping_q1.h.
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static |
The static \(Q_1\) mapping object discussed in the documentation of this class.
Definition at line 98 of file mapping_q1.h.