libMesh::ConstFunction< Output > Class Template Reference

#include <const_function.h>

Inheritance diagram for libMesh::ConstFunction< Output >:

[legend]

List of all members.

Public Member Functions
	ConstFunction (const Output &c)
virtual Output	operator() (const Point &, const Real=0)
virtual void	operator() (const Point &, const Real, DenseVector< Output > &output)
virtual AutoPtr< FunctionBase < Output > >	clone () const
virtual void	init ()
virtual void	clear ()
void	operator() (const Point &p, DenseVector< Output > &output)
virtual Output	component (unsigned int i, const Point &p, Real time=0.)
bool	initialized () const
Protected Attributes
const FunctionBase *	_master
bool	_initialized
Private Attributes
Output	_c

---

Detailed Description

template<typename Output = Number>
class libMesh::ConstFunction< Output >

Definition at line 33 of file const_function.h.

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Constructor & Destructor Documentation

template<typename Output = Number>

libMesh::ConstFunction< Output >::ConstFunction

(

const Output &

c

)

[inline, explicit]

Definition at line 37 of file const_function.h.

References libMesh::FunctionBase< Output >::_initialized.

: _c(c) { this->_initialized = true; }

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Member Function Documentation

template<typename Output = Number>

virtual void libMesh::FunctionBase< Output >::clear

(

)

[inline, virtual, inherited]

Clears the function.

Reimplemented in libMesh::AnalyticFunction< Output >, libMesh::MeshFunction, and libMesh::ParsedFunction< Output >.

Definition at line 90 of file function_base.h.

{}

template<typename Output = Number>

virtual AutoPtr<FunctionBase<Output> > libMesh::ConstFunction< Output >::clone

(

)

const [inline, virtual]

Returns a new copy of the function. The new copy should be as ``deep'' as necessary to allow independent destruction and simultaneous evaluations of the copies in different threads.

Implements libMesh::FunctionBase< Output >.

Reimplemented in libMesh::ZeroFunction< Output >.

Definition at line 52 of file const_function.h.

References libMesh::ConstFunction< Output >::_c.

                                                       {
    return AutoPtr<FunctionBase<Output> > 
      (new ConstFunction<Output>(_c));
  }

template<typename Output >

Output libMesh::FunctionBase< Output >::component	(	unsigned int	i,
		const Point &	p,
		Real	time = 0.
	)			[inline, virtual, inherited]

Returns:

the vector component i at coordinate p and time time. Subclasses aren't required to overload this, since the default implementation is based on the full vector evaluation, which is often correct. Subclasses are recommended to overload this, since the default implementation is based on a vector evaluation, which is usually unnecessarily inefficient.

Reimplemented in libMesh::ParsedFunction< Output >, and libMesh::WrappedFunction< Output >.

Definition at line 203 of file function_base.h.

Referenced by libMesh::BoundaryProjectSolution::operator()(), libMesh::ProjectFEMSolution::operator()(), and libMesh::ProjectSolution::operator()().

{
  DenseVector<Output> outvec(i+1);
  (*this)(p, time, outvec);
  return outvec(i);
}

template<typename Output = Number>

virtual void libMesh::FunctionBase< Output >::init

(

)

[inline, virtual, inherited]

The actual initialization process.

Reimplemented in libMesh::AnalyticFunction< Output >, libMesh::MeshFunction, and libMesh::ParsedFunction< Output >.

Definition at line 85 of file function_base.h.

{}

template<typename Output >

bool libMesh::FunctionBase< Output >::initialized

(

)

const [inline, inherited]

Returns:

true when this object is properly initialized and ready for use, false otherwise.

Definition at line 194 of file function_base.h.

References libMesh::FunctionBase< Output >::_initialized.

Referenced by libMesh::AnalyticFunction< Output >::operator()().

{
  return (this->_initialized);
}

template<typename Output>

void libMesh::FunctionBase< Output >::operator()	(	const Point &	p,
		DenseVector< Output > &	output
	)			[inline, inherited]

Return function for vectors. Returns in output the values of the data at the coordinate p.

Definition at line 216 of file function_base.h.

References libMesh::FunctionBase< Output >::operator()().

{
  // Call the time-dependent function with t=0.
  this->operator()(p, 0., output);
}

template<typename Output = Number>

virtual void libMesh::ConstFunction< Output >::operator()	(	const Point &	p,
		const	time,
		DenseVector< Output > &	output
	)			[inline, virtual]

Return function for vectors. Returns in output the values of the data at the coordinate p and for time time. Purely virtual, so you have to overload it. Note that this cannot be a const method, check MeshFunction.

Implements libMesh::FunctionBase< Output >.

Definition at line 43 of file const_function.h.

References libMesh::ConstFunction< Output >::_c, and libMesh::DenseVector< T >::size().

    {
      unsigned int size = output.size();
      for (unsigned int i=0; i != size; ++i)
        output(i) = _c;
    }

template<typename Output = Number>

virtual Output libMesh::ConstFunction< Output >::operator()	(	const Point &	p,
		const	time = 0
	)			[inline, virtual]

Returns:

the scalar value at coordinate p and time time, which defaults to zero. Purely virtual, so you have to overload it. Note that this cannot be a const method, check MeshFunction.

Implements libMesh::FunctionBase< Output >.

Definition at line 39 of file const_function.h.

References libMesh::ConstFunction< Output >::_c.

    { return _c; }

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Member Data Documentation

template<typename Output = Number>

Output libMesh::ConstFunction< Output >::_c [private]

Definition at line 58 of file const_function.h.

Referenced by libMesh::ConstFunction< Output >::clone(), and libMesh::ConstFunction< Output >::operator()().

template<typename Output = Number>

bool libMesh::FunctionBase< Output >::_initialized [protected, inherited]

When init() was called so that everything is ready for calls to operator() (...), then this bool is true.

Definition at line 166 of file function_base.h.

Referenced by libMesh::AnalyticFunction< Output >::AnalyticFunction(), libMesh::AnalyticFunction< Output >::clear(), libMesh::ConstFunction< Output >::ConstFunction(), libMesh::AnalyticFunction< Output >::init(), libMesh::FunctionBase< Output >::initialized(), libMesh::ParsedFunction< Output >::ParsedFunction(), and libMesh::WrappedFunction< Output >::WrappedFunction().

template<typename Output = Number>

const FunctionBase* libMesh::FunctionBase< Output >::_master [protected, inherited]

Const pointer to our master, initialized to NULL. There may be cases where multiple functions are required, but to save memory, one master handles some centralized data.

Definition at line 160 of file function_base.h.

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

• const_function.h