Reference documentation for deal.II version 9.1.1
\(\newcommand{\dealcoloneq}{\mathrel{\vcenter{:}}=}\)
Classes | Typedefs

Classes

class  Scalar
 
class  SymmetricTensor< 2, dim, spacedim >
 
class  Tensor< 2, dim, spacedim >
 
class  Vector
 

Typedefs

template<int dim, int spacedim, typename Extractor >
using View = typename internal::FEValuesViews::ViewType< dim, spacedim, Extractor >::type
 

Detailed Description

A namespace for "views" on a FEValues, FEFaceValues, or FESubfaceValues object. A view represents only a certain part of the whole: whereas the FEValues object represents all values, gradients, or second derivatives of all components of a vector-valued element, views restrict the attention to only a single component or a subset of components. You typically get objects of classes defined in this namespace by applying FEValuesExtractors objects to a FEValues, FEFaceValues or FESubfaceValues objects using the square bracket operator.

There are classes that present views for single scalar components, vector components consisting of dim elements, and symmetric second order tensor components consisting of (dim*dim + dim)/2 elements

See the description of the Handling vector valued problems module for examples how to use the features of this namespace.

Typedef Documentation

◆ View

template<int dim, int spacedim, typename Extractor >
using FEValuesViews::View = typedef typename internal::FEValuesViews::ViewType<dim, spacedim, Extractor>::type

A templated alias that associates to a given Extractor class the corresponding view in FEValuesViews.

Author
Luca Heltai, 2019.

Definition at line 1976 of file fe_values.h.