Sets the outer product of the coefficients and the normal vector to zero in every node on an edge with chosen attribute. More...

#include <zeroTang.hh>

Inheritance diagram for ZeroTangentialValue< F >:

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Collaboration diagram for ZeroTangentialValue< F >:

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List of all members.

Public Member Functions
virtual void	assembly (const concepts::Element< F > &e, concepts::TColumn< F > *&t, uint &n, uint &j, uint length)
	Returns the TColumns `t` for this constraint in element `e`.
virtual constraints::AnalyticalConstraint < F > *	clone () const
	Creates clone of itself and returns it.
virtual void	lengthT (const concepts::Element< F > &e, uint &length)
	Computes the length of the TColumn.
virtual void	localMatrix (concepts::ElementMatrix< F > &em, uint &j, const constraints::Element< F > &elm) const
	Fills the entries in the local constraints matrix `em`.
virtual void	localVector (concepts::ElementMatrix< F > &em, uint &j, const constraints::Element< F > &elm) const
	Fills the entries in the local constraints vector `em`.
	ZeroTangentialValue (concepts::Attribute a)
	Constructor.
	ZeroTangentialValue (const ZeroTangentialValue &z)
Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.
Private Member Functions
const concepts::Connector2 &	assertions_ (const concepts::Element< F > &e) const
Private Attributes
concepts::Attribute	attr_
	Topological entities with this attribute are considered.
concepts::DynArray< uint >	ctrl0_
	Vertices should only be considered once, store it here.
const linearFEM::Element *	linElm_

Detailed Description

template<typename F>
class ZeroTangentialValue< F >

Sets the outer product of the coefficients and the normal vector to zero in every node on an edge with chosen attribute.

Author:: Philipp Frauenfelder, 2002

Definition at line 24 of file zeroTang.hh.

Constructor & Destructor Documentation

template<typename F >

ZeroTangentialValue< F >::ZeroTangentialValue ( concepts::Attribute a ) [inline]

Constructor.

Parameters:

a	Attribute to identify edges

Definition at line 29 of file zeroTang.hh.

template<typename F >

ZeroTangentialValue< F >::ZeroTangentialValue ( const ZeroTangentialValue< F > & z ) [inline]

Definition at line 31 of file zeroTang.hh.

Member Function Documentation

template<typename F >

virtual void ZeroTangentialValue< F >::assembly	(	const concepts::Element< F > &	e,
		concepts::TColumn< F > *&	t,
		uint &	n,
		uint &	j,
		uint	length
	)		`[virtual]`

Returns the TColumns t for this constraint in element e.

n contains the next free global index in the space of constraints.

When treating dof by dof constraints, n should be increased after the creation of the TColumn (which gets as global index the old value of n).

When treating global constraints such as a zero mean value, n should be increased only once and all local constraints have to give this index to idx in the constructor of the new TColumn.

A similar idea stands behind j: it counts the local constraints which have already been treated. It therefore has to be increased after treating a constraint. j can be taken as index for the created TColumn to fill in the correct entry.

Parameters:

e	Element of the computational space
t	List of TColumns
n	Next free global index in the space of constraints. `n` is increased if a global constraint is hit for the first time.
j	Next free local index for the constraints in this element. `j` is increased accordingly when treating constraints in this element.
length	Length of TColumn

See also:: concepts::TColumn

Implements constraints::AnalyticalConstraint< F >.

template<typename F >

const concepts::Connector2& ZeroTangentialValue< F >::assertions_ ( const concepts::Element< F > & e ) const [private]

template<typename F >

virtual constraints::AnalyticalConstraint<F>* ZeroTangentialValue< F >::clone ( ) const [virtual]

Creates clone of itself and returns it.

This clone function implements a virtual constructor (cf. Stroustrup p. 424).

Implements constraints::AnalyticalConstraint< F >.

template<typename F >

virtual std::ostream& ZeroTangentialValue< F >::info ( std::ostream & os ) const [protected, virtual]

Returns information in an output stream.

Reimplemented from concepts::OutputOperator.

template<typename F >

virtual void ZeroTangentialValue< F >::lengthT	(	const concepts::Element< F > &	e,
		uint &	length
	)		`[virtual]`

Computes the length of the TColumn.

This method decides if this constraint is active on element e and how many local equations it generates. This is added to length.

Implements constraints::AnalyticalConstraint< F >.

template<typename F >

virtual void ZeroTangentialValue< F >::localMatrix	(	concepts::ElementMatrix< F > &	em,
		uint &	j,
		const constraints::Element< F > &	elm
	)		const `[virtual]`

Fills the entries in the local constraints matrix em.

Parameters:

em	Local constraints matrix. Has to be filled. The rows correspond to local dofs, the columns correspond to the equations this constraints creates in this element.
j	Local number of the constraints. Everytime, when a active constraint on the element is treated, `j` has to be increased by the number of equations this constraint created.
elm	Element of the constraints space

Implements constraints::AnalyticalConstraint< F >.

template<typename F >