Reference documentation for deal.II version Git 662679e6de 2020-10-27 13:02:35 -0600
DataPostprocessorInputs::Scalar< spacedim > Struct Template Reference

#include <deal.II/numerics/data_postprocessor.h>

Inheritance diagram for DataPostprocessorInputs::Scalar< spacedim >:
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## Public Member Functions

template<typename DoFHandlerType >
void set_cell (const typename DoFHandlerType::cell_iterator &cell)

template<typename DoFHandlerType >
DoFHandlerType::cell_iterator get_cell () const

## Public Attributes

std::vector< doublesolution_values

std::vector< Tensor< 1, spacedim > > solution_gradients

std::vector< Tensor< 2, spacedim > > solution_hessians

std::vector< Tensor< 1, spacedim > > normals

std::vector< Point< spacedim > > evaluation_points

## Detailed Description

### template<int spacedim> struct DataPostprocessorInputs::Scalar< spacedim >

A structure that is used to pass information to DataPostprocessor::evaluate_scalar_field(). It contains the values and (if requested) derivatives of a scalar solution variable at the evaluation points on a cell or face. (This class is not used if a scalar solution is complex-valued, however, since in that case the real and imaginary parts are treated separately – resulting in vector-valued inputs to data postprocessors, which are then passed to DataPostprocessor::evaluate_vector_field() instead.)

Through the fields in the CommonInputs base class, this class also makes available access to the locations of evaluations points, normal vectors (if appropriate), and which cell data is currently being evaluated on (also if appropriate).

Definition at line 232 of file data_postprocessor.h.

## ◆ set_cell()

template<int spacedim>
template<typename DoFHandlerType >
 void DataPostprocessorInputs::CommonInputs< spacedim >::set_cell ( const typename DoFHandlerType::cell_iterator & cell )
inherited

Set the cell that is currently being used in evaluating the data for which the DataPostprocessor object is being called.

This function is not usually called from user space, but is instead called by DataOut and similar classes when creating the object that is then passed to DataPostprocessor.

## ◆ get_cell()

template<int spacedim>
template<typename DoFHandlerType >
 DoFHandlerType::cell_iterator DataPostprocessorInputs::CommonInputs< spacedim >::get_cell ( ) const
inherited

Query the cell on which we currently produce graphical output. See the documentation of the current class for an example on how to use this function.

## ◆ solution_values

template<int spacedim>
 std::vector DataPostprocessorInputs::Scalar< spacedim >::solution_values

An array of values of the (scalar) solution at each of the evaluation points used to create graphical output from one cell, face, or other object.

Definition at line 239 of file data_postprocessor.h.

template<int spacedim>

An array of gradients of the (scalar) solution at each of the evaluation points used to create graphical output from one cell, face, or other object.

This array is only filled if a user-derived class overloads the DataPostprocessor::get_needed_update_flags(), and the function returns (possibly among other flags) UpdateFlags::update_gradients. Alternatively, a class derived from DataPostprocessorScalar, DataPostprocessorVector, or DataPostprocessorTensor may pass this flag to the constructor of these three classes.

Definition at line 254 of file data_postprocessor.h.

## ◆ solution_hessians

template<int spacedim>
 std::vector > DataPostprocessorInputs::Scalar< spacedim >::solution_hessians

An array of second derivatives of the (scalar) solution at each of the evaluation points used to create graphical output from one cell, face, or other object.

This array is only filled if a user-derived class overloads the DataPostprocessor::get_needed_update_flags(), and the function returns (possibly among other flags) UpdateFlags::update_hessians. Alternatively, a class derived from DataPostprocessorScalar, DataPostprocessorVector, or DataPostprocessorTensor may pass this flag to the constructor of these three classes.

Definition at line 269 of file data_postprocessor.h.

## ◆ normals

template<int spacedim>
 std::vector > DataPostprocessorInputs::CommonInputs< spacedim >::normals
inherited

An array of vectors normal to the faces of cells, evaluated at the points at which we are generating graphical output. This array is only used by the DataOutFaces class, and is left empty by all other classes for which the DataPostprocessor framework can be used. In the case of DataOutFaces, the array contains the outward normal vectors to the face, seen from the interior of the cell.

This array is only filled if a user-derived class overloads the DataPostprocessor::get_needed_update_flags(), and the function returns (possibly among other flags) UpdateFlags::update_normal_vectors. Alternatively, a class derived from DataPostprocessorScalar, DataPostprocessorVector, or DataPostprocessorTensor may pass this flag to the constructor of these three classes.

Definition at line 167 of file data_postprocessor.h.

## ◆ evaluation_points

template<int spacedim>
 std::vector > DataPostprocessorInputs::CommonInputs< spacedim >::evaluation_points
inherited

An array of coordinates corresponding to the locations at which we are generating graphical output on one cell.

This array is only filled if a user-derived class overloads the DataPostprocessor::get_needed_update_flags(), and the function returns (possibly among other flags) UpdateFlags::update_quadrature_points. Alternatively, a class derived from DataPostprocessorScalar, DataPostprocessorVector, or DataPostprocessorTensor may pass this flag to the constructor of these three classes.

Definition at line 181 of file data_postprocessor.h.

The documentation for this struct was generated from the following file: