Reference documentation for deal.II version Git 283ce71 2014-12-19 22:22:25 +0100
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Functions::PillowFunction< dim > Class Template Reference

#include <deal.II/base/function_lib.h>

Inheritance diagram for Functions::PillowFunction< dim >:
[legend]

Public Member Functions

 PillowFunction (const double offset=0.)
 
virtual double value (const Point< dim > &p, const unsigned int component=0) const
 
virtual void value_list (const std::vector< Point< dim > > &points, std::vector< double > &values, const unsigned int component=0) const
 
virtual Tensor< 1, dim > gradient (const Point< dim > &p, const unsigned int component=0) const
 
virtual void gradient_list (const std::vector< Point< dim > > &points, std::vector< Tensor< 1, dim > > &gradients, const unsigned int component=0) const
 
virtual double laplacian (const Point< dim > &p, const unsigned int component=0) const
 
virtual void laplacian_list (const std::vector< Point< dim > > &points, std::vector< double > &values, const unsigned int component=0) const
 
- Public Member Functions inherited from Function< dim >
 Function (const unsigned int n_components=1, const doubleinitial_time=0.0)
 
virtual ~Function ()=0
 
Functionoperator= (const Function &f)
 
virtual double value (const Point< dim, double > &p, const unsigned int component=0) const
 
virtual void vector_value (const Point< dim, double > &p, Vector< double > &values) const
 
virtual void value_list (const std::vector< Point< dim, double > > &points, std::vector< double > &values, const unsigned int component=0) const
 
virtual void vector_value_list (const std::vector< Point< dim, double > > &points, std::vector< Vector< double > > &values) const
 
virtual void vector_values (const std::vector< Point< dim, double > > &points, std::vector< std::vector< double > > &values) const
 
virtual Tensor< 1, dim, doublegradient (const Point< dim, double > &p, const unsigned int component=0) const
 
virtual void vector_gradient (const Point< dim, double > &p, std::vector< Tensor< 1, dim, double > > &gradients) const
 
virtual void gradient_list (const std::vector< Point< dim, double > > &points, std::vector< Tensor< 1, dim, double > > &gradients, const unsigned int component=0) const
 
virtual void vector_gradients (const std::vector< Point< dim, double > > &points, std::vector< std::vector< Tensor< 1, dim, double > > > &gradients) const
 
virtual void vector_gradient_list (const std::vector< Point< dim, double > > &points, std::vector< std::vector< Tensor< 1, dim, double > > > &gradients) const
 
virtual double laplacian (const Point< dim, double > &p, const unsigned int component=0) const
 
virtual void vector_laplacian (const Point< dim, double > &p, Vector< double > &values) const
 
virtual void laplacian_list (const std::vector< Point< dim, double > > &points, std::vector< double > &values, const unsigned int component=0) const
 
virtual void vector_laplacian_list (const std::vector< Point< dim, double > > &points, std::vector< Vector< double > > &values) const
 
std::size_t memory_consumption () const
 
- Public Member Functions inherited from FunctionTime< Number >
 FunctionTime (const Number initial_time=Number(0.0))
 
virtual ~FunctionTime ()
 
Number get_time () const
 
virtual void set_time (const Number new_time)
 
virtual void advance_time (const Number delta_t)
 
- Public Member Functions inherited from Subscriptor
 Subscriptor ()
 
 Subscriptor (const Subscriptor &)
 
virtual ~Subscriptor ()
 
Subscriptoroperator= (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"<< "(Additional information: "<< arg3<< ")\n"<< "Note the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "more information on what this error means.")
 
 DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier \""<< arg2<< "\" did subscribe to this object of class "<< arg1)
 
template<class Archive >
void serialize (Archive &ar, const unsigned int version)
 

Private Attributes

const double offset
 

Additional Inherited Members

- Public Attributes inherited from Function< dim >
const unsigned int n_components
 
- Static Public Attributes inherited from Function< dim >
static const unsigned int dimension
 

Detailed Description

template<int dim>
class Functions::PillowFunction< dim >

d-quadratic pillow on the unit hypercube.

This is a function for testing the implementation. It has zero Dirichlet boundary values on the domain \((-1,1)^d\). In the inside, it is the product of \(1-x_i^2\) over all space dimensions.

Providing a non-zero argument to the constructor, the whole function can be offset by a constant.

Together with the function, its derivatives and Laplacian are defined.

Author
: Guido Kanschat, 1999

Definition at line 141 of file function_lib.h.

Constructor & Destructor Documentation

template<int dim>
Functions::PillowFunction< dim >::PillowFunction ( const double  offset = 0.)

Constructor. Provide a constant that will be added to each function value.

Member Function Documentation

template<int dim>
virtual double Functions::PillowFunction< dim >::value ( const Point< dim > &  p,
const unsigned int  component = 0 
) const
virtual

The value at a single point.

template<int dim>
virtual void Functions::PillowFunction< dim >::value_list ( const std::vector< Point< dim > > &  points,
std::vector< double > &  values,
const unsigned int  component = 0 
) const
virtual

Values at multiple points.

template<int dim>
virtual Tensor<1,dim> Functions::PillowFunction< dim >::gradient ( const Point< dim > &  p,
const unsigned int  component = 0 
) const
virtual

Gradient at a single point.

template<int dim>
virtual void Functions::PillowFunction< dim >::gradient_list ( const std::vector< Point< dim > > &  points,
std::vector< Tensor< 1, dim > > &  gradients,
const unsigned int  component = 0 
) const
virtual

Gradients at multiple points.

template<int dim>
virtual double Functions::PillowFunction< dim >::laplacian ( const Point< dim > &  p,
const unsigned int  component = 0 
) const
virtual

Laplacian at a single point.

template<int dim>
virtual void Functions::PillowFunction< dim >::laplacian_list ( const std::vector< Point< dim > > &  points,
std::vector< double > &  values,
const unsigned int  component = 0 
) const
virtual

Laplacian at multiple points.


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