A infinite quadrilateral in the topology, which possess one Edge and two InfiniteEdges since one edge lies in the infinite. More...

#include <topology.hh>

Inheritance diagram for concepts::InfiniteQuad:

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Collaboration diagram for concepts::InfiniteQuad:

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List of all members.

Public Member Functions
const Attribute &	attrib () const
	Returns the attribute of the connector.
virtual const Connector2 *	child (uint i) const
virtual Connector2 *	child (uint i, bool mode=0)
	Returns a child.
InfiniteQuad *	clone (InfiniteEdge &edg0, Edge &edg1, InfiniteEdge &edg2) const
	Returns the pointer of a new Quad with the same attribute, the same key and the same rho but NO children and sibling.
Connector1 *	edge (uint i) const
	Returns a 1D component: edge.
const InfQuadSubdivision *	getStrategy () const
	Returns the subdivision strategy of this quad.
	InfiniteQuad (InfiniteEdge &edg0, Edge &edg1, InfiniteEdge &edg2, const Attribute attrib=Attribute())
	Constructor.
const Key &	key () const
	Returns the key of the connector.
int	numEdges () const
int	numVertices () const
int	operator== (const Connector &cntr) const
	Comparison operator.
int	related (const Connector &conn) const
	Checks if this connector is related to `conn`.
Z2	rho () const
	Returns the orientation of the finite edge.
void	setStrategy (const InfQuadSubdivision *strategy=0) throw (StrategyChange)
	Sets the subdivision strategy of this quad.
Vertex *	vertex (uint i) const
	Returns a 0D component: vertex A 2D element consists of 1D and 0D elements, the vertices can be queried here.
virtual	~InfiniteQuad ()
	Destructor.
Protected Member Functions
Scan< Connector2 > *	children_ () const
	Scanner over the children.
void	edgeAssertion_ () const
	Assert, that the vertices of the four edges match properly.
	InfiniteQuad (InfiniteEdge &edg0, Edge &edg1, InfiniteEdge &edg2, const Attribute attrib, const Key &key, const Z2 rho)
	Constructor used by clone()
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.
Protected Attributes
Attribute	attrib_
	Attribute.
concepts::Joiner< Connector2 , 1 >	chld_
	List of Pointers to the children.
Edge *	edg_
	Finite edge.
InfiniteEdge *	infEdg_ [2]
	Finite edge.
Key	key_
	Unique key of the connector.
Z2	rho_
	Orientation flags for the finite edge.
const InfQuadSubdivision *	subdivStrategy_
	Subdivision strategy for the quadrilateral.
Static Protected Attributes
static uint	cnt_
	Counter for the connectors.
Friends
class	InfQuadSubdiv2V

Detailed Description

A infinite quadrilateral in the topology, which possess one Edge and two InfiniteEdges since one edge lies in the infinite.

Implements the abstract methods from the parent classes to query the children, the vertices and the edges of the quadrilateral.

The finite edge can have two different orientations in the quadrilateral, this orientation is stored in rho.

The edges are : 0 - first infinite edge 1 - finite edge 2 - second infinite edge The vertices are : 0 - vertex of first infinite edge 1 - vertex of second infinite edge if rho == 0 0 - first vertex of finite edge 1 - second vertex of finite edge if rho == 1 vice versa

Definition at line 419 of file topology.hh.

Constructor & Destructor Documentation

concepts::InfiniteQuad::InfiniteQuad	(	InfiniteEdge &	edg0,
		Edge &	edg1,
		InfiniteEdge &	edg2,
		const Attribute	attrib = `Attribute()`
	)

Constructor.

Creates a quadrilateral out of three edges. The edges must form an infinite quadrilateral: the 1st and the 2nd edge, the 2nd and the 3rd edge must have a common vertex. The Edge can have an arbitrary orientation, which is detected and stored in rho_.

Parameters:

edg0	1st edge.
edg1	2nd edge.
edg2	3rd edge.
attrib	Attribute of the edge

virtual concepts::InfiniteQuad::~InfiniteQuad ( ) [virtual]

Destructor.

concepts::InfiniteQuad::InfiniteQuad	(	InfiniteEdge &	edg0,
		Edge &	edg1,
		InfiniteEdge &	edg2,
		const Attribute	attrib,
		const Key &	key,
		const Z2	rho
	)		`[protected]`

Constructor used by clone()

Member Function Documentation

const Attribute& concepts::Connector::attrib ( ) const [inline, inherited]

Returns the attribute of the connector.

Definition at line 104 of file connector.hh.

virtual Connector2* concepts::InfiniteQuad::child	(	uint	i,
		bool	mode = `0`
	)		`[virtual]`

Returns a child.

If children are created, four new children are created (with the same attributes as this one). All edges of the quadrilateral are refined and four new edges introduced.

Parameters:

i	Index of the child to be returned.
mode	mode = 1: No children are created mode = 0: If no childs exist, four new children are created. setStrategy() is called before creating the children.

Implements concepts::Connector2.

virtual const Connector2* concepts::InfiniteQuad::child ( uint i ) const [virtual]

Implements concepts::Connector2.

Scan<Connector2>* concepts::InfiniteQuad::children_ ( ) const [inline, protected]

Scanner over the children.

Definition at line 520 of file topology.hh.

InfiniteQuad * concepts::InfiniteQuad::clone	(	InfiniteEdge &	edg0,
		Edge &	edg1,
		InfiniteEdge &	edg2
	)		const `[inline]`

Returns the pointer of a new Quad with the same attribute, the same key and the same rho but NO children and sibling.

Definition at line 528 of file topology.hh.

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Connector1* concepts::InfiniteQuad::edge ( uint i ) const [virtual]

Returns a 1D component: edge.

A 2D element consists of 1D and 0D elements, the edges can be queried here.

Parameters:

i	Index of the edge

Implements concepts::Connector2.

void concepts::InfiniteQuad::edgeAssertion_ ( ) const [protected]

Assert, that the vertices of the four edges match properly.

const InfQuadSubdivision* concepts::InfiniteQuad::getStrategy ( ) const [inline]

Returns the subdivision strategy of this quad.

If you want to find check against another strategy use

quad.getStrategy() == QuadSubdiv2V::instance()

Definition at line 496 of file topology.hh.

virtual std::ostream& concepts::InfiniteQuad::info ( std::ostream & os ) const [protected, virtual]

Returns information in an output stream.

Reimplemented from concepts::Connector.

const Key& concepts::Connector::key ( ) const [inline, inherited]

Returns the key of the connector.

Definition at line 101 of file connector.hh.

int concepts::InfiniteQuad::numEdges ( ) const [inline]

Definition at line 460 of file topology.hh.

int concepts::InfiniteQuad::numVertices ( ) const [inline]

Definition at line 456 of file topology.hh.

int concepts::Connector::operator== ( const Connector & cntr ) const [inline, inherited]

Comparison operator.

Definition at line 98 of file connector.hh.

int concepts::Connector::related ( const Connector & conn ) const [inherited]

Checks if this connector is related to conn.

It is being checked if one of the two is an ancestor of the other.

Parameters:

conn	Other connector

Returns:: An integer i.
i=0 if there is no relationship or the connectors are identical
i>0 if conn is an ancestor of this connector
i<0 if conn is a descendant of this connector
|i| gives the number of generations between the connectors

Z2 concepts::InfiniteQuad::rho ( ) const [inline]

Returns the orientation of the finite edge.

rho = 0 : Edge is oriented counter-clockwise in the quadrilateral. rho = 1 : Edge is oriented clockwise in the quadrilateral.

Definition at line 469 of file topology.hh.

void concepts::InfiniteQuad::setStrategy ( const InfQuadSubdivision * strategy = 0 ) throw (StrategyChange)

Sets the subdivision strategy of this quad.

If the parameter is set to 0 (or if the method is called without parameter) the strategy is set to the default (if not already set). The default subdivision strategy is subdivision into 4 children.

Parameters:

strategy Pointer to an instance of a subdivision strategy.

Exceptions:

StrategyChange if the change is not allowed (the change is not allowed if there are children present)

Vertex* concepts::InfiniteQuad::vertex ( uint i ) const [inline, virtual]

Returns a 0D component: vertex A 2D element consists of 1D and 0D elements, the vertices can be queried here.

Parameters: