Reference documentation for deal.II version Git 312a122 2015-03-28 17:17:02 +0100
|DataPostprocessorScalar (const std::string &name, const UpdateFlags update_flags)|
|virtual std::vector< std::string >||get_names () const|
< DataComponentInterpretation::DataComponentInterpretation >
|get_data_component_interpretation () const|
|virtual UpdateFlags||get_needed_update_flags () const|
|Public Member Functions inherited from DataPostprocessor< dim >|
|virtual void||compute_derived_quantities_scalar (const std::vector< double > &uh, const std::vector< Tensor< 1, dim > > &duh, const std::vector< Tensor< 2, dim > > &dduh, const std::vector< Point< dim > > &normals, const std::vector< Point< dim > > &evaluation_points, std::vector< Vector< double > > &computed_quantities) const|
|virtual void||compute_derived_quantities_vector (const std::vector< Vector< double > > &uh, const std::vector< std::vector< Tensor< 1, dim > > > &duh, const std::vector< std::vector< Tensor< 2, dim > > > &dduh, const std::vector< Point< dim > > &normals, const std::vector< Point< dim > > &evaluation_points, std::vector< Vector< double > > &computed_quantities) const|
|Public Member Functions inherited from Subscriptor|
|Subscriptor (const Subscriptor &)|
|Subscriptor &||operator= (const Subscriptor &)|
|void||subscribe (const char *identifier=0) const|
|void||unsubscribe (const char *identifier=0) const|
|unsigned int||n_subscriptions () const|
|void||list_subscribers () const|
|DeclException3 (ExcInUse, int, char *, std::string &,<< "Object of class "<< arg2<< " is still used by "<< arg1<< " other objects."<< "\n\n"<< "(Additional information: "<< arg3<< ")\n\n"<< "See the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "a lot more information on what this error means and "<< "how to fix programs in which it happens.")|
|DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier <"<< arg2<< "> subscribes to this object of class "<< arg1<< ". Consequently, it cannot be unsubscribed.")|
|template<class Archive >|
|void||serialize (Archive &ar, const unsigned int version)|
This class provides a simpler interface to the functionality offered by the DataPostprocessor class in case one wants to compute only a single scalar quantity from the finite element field passed to the DataOut class. For this particular case, it is clear what the returned value of DataPostprocessor::get_data_component_interpretation() should be and we pass the values returned by get_names() and get_needed_update_flags() to the constructor so that derived classes do not have to implement these functions by hand.
All derived classes have to do is implement a constructor and overload either DataPostprocessor::compute_derived_quantities_scalar() or DataPostprocessor::compute_derived_quantities_vector().
An example of how this class can be used can be found in step-29.
|DataPostprocessorScalar< dim >::DataPostprocessorScalar||(||const std::string &||name,|
Constructor. Take the name of the single scalar variable computed by classes derived from the current one, as well as the update flags necessary to compute this quantity.
|name||The name by which the scalar variable computed by this class should be made available in graphical output files.|
|update_flags||This has to be a combination of |
Return the vector of strings describing the names of the computed quantities. Given the purpose of this class, this is a vector with a single entry equal to the name given to the constructor.
Implements DataPostprocessor< dim >.
This functions returns information about how the individual components of output files that consist of more than one data set are to be interpreted. Since the current class is meant to be used for a single scalar result variable, the returned value is obviously DataComponentInterpretation::component_is_scalar.
Reimplemented from DataPostprocessor< dim >.
Return, which data has to be provided to compute the derived quantities. The flags returned here are the ones passed to the constructor of this class.
Implements DataPostprocessor< dim >.