Functions::CutOffFunctionLinfty< dim > Class Template Reference

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

Inheritance diagram for Functions::CutOffFunctionLinfty< dim >:

Public Member Functions
	CutOffFunctionLinfty (const double radius=1., const Point< dim >=Point< dim >(), const unsigned int n_components=1, const unsigned int select=CutOffFunctionBase< dim >::no_component)
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 void	vector_value_list (const std::vector< Point< dim > > &points, std::vector< Vector< double > > &values) const
Public Member Functions inherited from Functions::CutOffFunctionBase< dim >
	CutOffFunctionBase (const double radius=1., const Point< dim >=Point< dim >(), const unsigned int n_components=1, const unsigned int select=CutOffFunctionBase< dim >::no_component)
void	new_center (const Point< dim > &p)
void	new_radius (const double r)
Public Member Functions inherited from Function< dim >
	Function (const unsigned int n_components=1, const double initial_time=0.0)
virtual	~Function ()=0
Function &	operator= (const Function &f)
virtual void	vector_value (const Point< dim > &p, Vector< double > &values) const
virtual void	vector_values (const std::vector< Point< dim > > &points, std::vector< std::vector< double > > &values) const
virtual Tensor< 1, dim, double >	gradient (const Point< dim > &p, const unsigned int component=0) const
virtual void	vector_gradient (const Point< dim > &p, std::vector< Tensor< 1, dim, double > > &gradients) const
virtual void	gradient_list (const std::vector< Point< dim > > &points, std::vector< Tensor< 1, dim, double > > &gradients, const unsigned int component=0) const
virtual void	vector_gradients (const std::vector< Point< dim > > &points, std::vector< std::vector< Tensor< 1, dim, double > > > &gradients) const
virtual void	vector_gradient_list (const std::vector< Point< dim > > &points, std::vector< std::vector< Tensor< 1, dim, double > > > &gradients) const
virtual double	laplacian (const Point< dim > &p, const unsigned int component=0) const
virtual void	vector_laplacian (const Point< dim > &p, Vector< double > &values) const
virtual void	laplacian_list (const std::vector< Point< dim > > &points, std::vector< double > &values, const unsigned int component=0) const
virtual void	vector_laplacian_list (const std::vector< Point< dim > > &points, std::vector< Vector< double > > &values) const
virtual SymmetricTensor< 2, dim, double >	hessian (const Point< dim > &p, const unsigned int component=0) const
virtual void	vector_hessian (const Point< dim > &p, std::vector< SymmetricTensor< 2, dim, double > > &values) const
virtual void	hessian_list (const std::vector< Point< dim > > &points, std::vector< SymmetricTensor< 2, dim, double > > &values, const unsigned int component=0) const
virtual void	vector_hessian_list (const std::vector< Point< dim > > &points, std::vector< std::vector< SymmetricTensor< 2, dim, 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 ()=default
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 &)
	Subscriptor (Subscriptor &&) noexcept
virtual	~Subscriptor ()
Subscriptor &	operator= (const Subscriptor &)
Subscriptor &	operator= (Subscriptor &&) noexcept
void	subscribe (const char *identifier=nullptr) const
void	unsubscribe (const char *identifier=nullptr) const
unsigned int	n_subscriptions () const
void	list_subscribers () const
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Additional Inherited Members
Static Public Member Functions inherited from Subscriptor
static ::ExceptionBase &	ExcInUse (int arg1, std::string arg2, std::string arg3)
static ::ExceptionBase &	ExcNoSubscriber (std::string arg1, std::string arg2)
Public Attributes inherited from Function< dim >
const unsigned int	n_components
Static Public Attributes inherited from Functions::CutOffFunctionBase< dim >
static const unsigned int	no_component = numbers::invalid_unsigned_int
Static Public Attributes inherited from Function< dim >
static const unsigned int	dimension
Protected Attributes inherited from Functions::CutOffFunctionBase< dim >
Point< dim >	center
double	radius
const unsigned int	selected

Detailed Description

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

Cut-off function in L-infinity for an arbitrary ball. This function is the characteristic function of a ball around center with a specified radius, that is,

\[ f = \chi(B_r(c)). \]

If vector valued, it can be restricted to a single component.

Author

Guido Kanschat, 2001, 2002

Definition at line 896 of file function_lib.h.

Constructor & Destructor Documentation

CutOffFunctionLinfty()

template<int dim>

Functions::CutOffFunctionLinfty< dim >::CutOffFunctionLinfty	(	const double	radius = 1.,
		const Point< dim >	p = Point<dim>(),
		const unsigned int	n_components = 1,
		const unsigned int	select = CutOffFunctionBase<dim>::no_component
	)

Constructor. Arguments are the center of the ball and its radius.

If an argument select is given and not -1, the cut-off function will be non-zero for this component only.

Definition at line 59 of file function_lib_cutoff.cc.

Member Function Documentation

value()

template<int dim>

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

virtual

Function value at one point.

Reimplemented from Function< dim >.

Definition at line 70 of file function_lib_cutoff.cc.

value_list()

template<int dim>

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

virtual

Function values at multiple points.

Reimplemented from Function< dim >.

Definition at line 83 of file function_lib_cutoff.cc.

vector_value_list()

template<int dim>

void Functions::CutOffFunctionLinfty< dim >::vector_value_list ( const std::vector< Point< dim > > &  points, std::vector< Vector< double > > &  values  ) const

virtual

Function values at multiple points.

Reimplemented from Function< dim >.

Definition at line 105 of file function_lib_cutoff.cc.

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

• deal.II/base/function_lib.h
• source/base/function_lib_cutoff.cc