A 3D adaptive BEM space with piecewise constant basis functions. More...

#include <space.hh>

Inheritance diagram for bem::AdaptConst3d002< F >:

Collaboration diagram for bem::AdaptConst3d002< F >:

Public Types
typedef Scan< ElementWithCell < F > >	Scanner
Public Member Functions
	AdaptConst3d002 (concepts::Mesh2 &msh, uint lvl, ushort deltal, ushort deltaL)
	Constructor.
virtual void	adjust (const Element< F > &elm, const AdaptiveAdjust &a)=0
	Adjusts the space in the next rebuild step for this element.
void	adjust (const concepts::Element< F > &elm, const AdaptiveAdjust &a)
	Sets the adjustments for an element.
void	adjust (const Constant3d001< F > &elm, const AdaptiveAdjust &a)
uint	dim ()
uint	dim () const
	Returns the number of degrees of freedom.
std::ostream &	info (std::ostream &os, uint mode=0) const
	Gives some information about the space.
short	l (Constant3d001< F > &elm)
	Returns the level of a element.
uint	maxlevel ()
	Returns the maximal level of all elements.
uint	minlevel ()
	Returns the minimal level of all elements.
uint	nelm () const
	Returns the number of elements of the space.
uint	nelm ()
void	rebuild ()
	Rebuilds the space.
concepts::Scan < concepts::ElementWithCell< F > > *	scan ()
concepts::Scan < concepts::ElementWithCell< F > > *	scan () const
	Returns a scanner for the active elements of the space.
	~AdaptConst3d002 ()
Protected Member Functions
std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.
Private Member Functions
void	rebuild0_ (concepts::Connector2 &cntr, int l, int &L)
	Marks the cells correctly for the new space.
void	rebuild1_ (concepts::Connector2 &cntr, uint l)
void	rebuild2_ ()
void	rebuild3_ (concepts::Triangle3d &cell, uint l, ushort tag)
Private Attributes
concepts::DynArray < AdaptiveAdjust >	adj_
	Dynamic array of the adjustment information of the mesh.
concepts::DynArray < concepts::AdaptiveControl<> >	ctrl_
	Dynamic array of the control information for the elements.
ushort	deltal_
	level difference between two neighbouring elements less or equal to $\Delta l$ .
ushort	deltaL_
	level difference between two elements less or equal to $\Delta L$ .
uint	dim_
	Number of degrees of freedom in the space.
concepts::DynArray< EdgeMap >	edgmap_
	Dynamic array of the edge $\rightarrow$ panel mapping.
concepts::Joiner < concepts::ElementWithCell< F > , 1 >	elm_
	Linked list of the elements.
uint	maxlvl_
	Maximal level of all elements.
uint	minlvl_
	Minimal level of all elements.
concepts::Mesh2 &	msh_
	The mesh.
uint	nelm_
	Number of elements currently active in the mesh.
bool	rebuild_
	If true: the mesh has to be rebuilt (refined or coarsened)
std::stack< EdgeMap * >	stk_
	stack for the edge $\rightarrow$ panels mappings with a too large level difference

Detailed Description

template<class F = concepts::Real>
class bem::AdaptConst3d002< F >

A 3D adaptive BEM space with piecewise constant basis functions.

Constraints: level difference between neighbouring elements is less or equal to $\Delta l$ , Maximal level difference between two panels is less of equal to $\Delta L$ .

Parameters:

F	Field of the space (Real or Cmplx)

Test:: test::BEMSpaceTest

Definition at line 610 of file space.hh.

Member Typedef Documentation

template<class F>

typedef Scan<ElementWithCell<F> > concepts::SpaceOnCells< F >::Scanner [inherited]

Reimplemented from concepts::Space< F >.

Reimplemented in linDG3D::FvdgSpace.

Definition at line 74 of file space.hh.

Constructor & Destructor Documentation

template<class F = concepts::Real>

bem::AdaptConst3d002< F >::AdaptConst3d002	(	concepts::Mesh2 &	msh,
		uint	lvl,
		ushort	deltal,
		ushort	deltaL
	)

Constructor.

Scans the mesh and sets the cells in the mesh active and the level of refinement in all cells to the given values. rebuild_ is set to true, ie. if the mesh is used it will firstly be rebuilt.

Parameters:

msh	The surface of interest partitioned into a mesh.
lvl	Level of refinement
deltal	Maximal local level difference
deltaL	Maximal global level difference

template<class F = concepts::Real>

bem::AdaptConst3d002< F >::~AdaptConst3d002 ( )

Member Function Documentation

template<class F = concepts::Real>

void bem::AdaptConst3d002< F >::adjust	(	const concepts::Element< F > &	elm,
		const AdaptiveAdjust &	a
	)

Sets the adjustments for an element.

The adjustment information in adj_ is updated and the flag rebuild_ is set to true.

Parameters:

elm	Element to be adjusted
l	Difference in the level

Exceptions:

MissingFeature

template<class F = concepts::Real>

void bem::AdaptConst3d002< F >::adjust	(	const Constant3d001< F > &	elm,
		const AdaptiveAdjust &	a
	)

virtual void concepts::AdaptiveSpace< F, AdaptiveAdjust >::adjust	(	const Element< F > &	elm,
		const AdaptiveAdjust &	a
	)		`[pure virtual, inherited]`

Adjusts the space in the next rebuild step for this element.

template<class F >

uint bem::AdaptConst3d002< F >::dim ( ) const [inline, virtual]

Returns the number of degrees of freedom.

Exceptions:

SpaceNotBuilt

Implements concepts::Space< F >.

Definition at line 729 of file space.hh.

template<class F >

uint bem::AdaptConst3d002< F >::dim ( ) [inline]

Definition at line 735 of file space.hh.

template<class F = concepts::Real>

std::ostream& bem::AdaptConst3d002< F >::info	(	std::ostream &	os,
		uint	mode = `0`
	)		const

Gives some information about the space.

Exceptions:

SpaceNotBuilt

Parameters:

os	Output stream
mode	There are different levels of information available. mode = 0 Output of dimension and number of elements mode = 1 Prints all elements

template<class F = concepts::Real>

std::ostream& bem::AdaptConst3d002< F >::info ( std::ostream & os ) const [inline, protected, virtual]

Returns information in an output stream.

Reimplemented from bem::AdaptiveSpace< F >.

Definition at line 660 of file space.hh.

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template<class F = concepts::Real>

short bem::AdaptConst3d002< F >::l ( Constant3d001< F > & elm ) [inline]

Returns the level of a element.

Definition at line 696 of file space.hh.

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template<class F >

uint bem::AdaptConst3d002< F >::maxlevel ( ) [inline]

Returns the maximal level of all elements.

Definition at line 753 of file space.hh.

template<class F >

uint bem::AdaptConst3d002< F >::minlevel ( ) [inline]

Returns the minimal level of all elements.

Definition at line 759 of file space.hh.

template<class F >

uint bem::AdaptConst3d002< F >::nelm ( ) [inline]

Definition at line 747 of file space.hh.

template<class F >

uint bem::AdaptConst3d002< F >::nelm ( ) const [inline, virtual]

Returns the number of elements of the space.

Exceptions:

SpaceNotBuilt

Implements concepts::Space< F >.

Definition at line 741 of file space.hh.

template<class F = concepts::Real>

void bem::AdaptConst3d002< F >::rebuild ( )

Rebuilds the space.

First the old list of elements in the space is removed (not the elements in the topology!). For every cell in the original mesh, rebuild0_ and rebuild1_ are called. From the mesh, they build the space and store the elements in elm_. rebuild0_ marks the elements with the right values and rebuild1_ really does the work.

Exceptions:

MissingFeature

template<class F = concepts::Real>

void bem::AdaptConst3d002< F >::rebuild0_	(	concepts::Connector2 &	cntr,
		int	l,
		int &	L
	)		`[private]`

Marks the cells correctly for the new space.

First, the desired level in the current connector is determined. Second, the maximum desired level of the children is recursively determined, if we need to refine the current connector. Third, the edge $\rightarrow$ panel mapping is constructed Fourth, the level difference between the panels adjusted Fifth, the tag of the current connector is updated.

Parameters: