#include <topology.hh>

Inheritance diagram for concepts::Quad:

Public Member Functions
	Quad (Edge &edg0, Edge &edg1, Edge &edg2, Edge &edg3, const Attribute attrib=Attribute())

	Quad (const Quad &quad, uint i)

virtual	~Quad ()
	Destructor.

virtual Quad *	child (uint i, bool mode=0)

virtual const Quad *	child (uint i) const

Edge *	edge (uint i) const

Vertex *	vertex (uint i) const

int	numVertices () const

int	numEdges () const

Z2	rho (int i) const

bool	regular () const

Quad *	clone (Edge &edg0, Edge &edg1, Edge &edg2, Edge &edg3) const

void	setStrategy (const QuadSubdivision *strategy=0)

const QuadSubdivision *	getStrategy () const

int	operator== (const Connector &cntr) const
	Comparison operator.

const Key &	key () const
	Returns the key of the connector.

const Attribute &	attrib () const
	Returns the attribute of the connector.

void	setAttrib (uint attrb)

int	related (const Connector &conn) const

Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.

	Quad (Edge &edg0, Edge &edg1, Edge &edg2, Edge &edg3, const Attribute attrib, const Key &key, const Z2 rho[])
	Constructor used by clone()

Scan< Quad > *	children_ () const
	Scanner over the children.

void	edgeAssertion_ () const
	Assert, that the vertices of the four edges match properly.

Protected Attributes
concepts::Joiner< Quad , 1 >	chld_
	List of Pointers to the children.

bool	regular_
	Regular Cell, deleting of children possible.

Edge *	edg_ [4]
	Array of the edges.

Z2	rho_ [4]
	Array of the orientation flags for the edges.

const QuadSubdivision *	subdivStrategy_
	Subdivision strategy for the quadrilateral.

Key	key_
	Unique key of the connector.

Attribute	attrib_
	Attribute.

Static Protected Attributes
static std::map< Key, Z2 >	rhoTriv_
	orientation of trivial edges (with idential vertices)

static uint	cnt_

Friends
class	QuadSubdiv4

class	QuadSubdiv2H

class	QuadSubdiv2V

Detailed Description

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

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

Examples: meshes.cc.

Definition at line 272 of file topology.hh.

Constructor & Destructor Documentation

◆ Quad() [1/2]

concepts::Quad::Quad	(	Edge &	edg0,
		Edge &	edg1,
		Edge &	edg2,
		Edge &	edg3,
		const Attribute	attrib = `Attribute()`
	)

Constructor. Creates a quadrilateral out of four edges. The edges must form a quadrilateral: the 1st and the 2nd edge, the 2nd and the 3rd edge, the 3rd and the 4th edge and the 4th and the 1st edge must have a common vertex. The edges can have an arbitrary orientation. The orientation is detected and stored in rho_.

Parameters

edg0	1st edge.
edg1	2nd edge.
edg2	3rd edge.
edg3	4th edge.
attrib	Attribute of the edge

◆ Quad() [2/2]

concepts::Quad::Quad	(	const Quad &	quad,
		uint	i
	)

Creating of intermediate cells through coalescing of two of the four childs (only for subdivision in four quadrilaterials)

New cell is not regular, children are not deleted in its destructor

Member Function Documentation

◆ attrib()

const Attribute & concepts::Connector::attrib ( ) const

inlineinherited

Returns the attribute of the connector.

Definition at line 108 of file connector.hh.

◆ child() [1/2]

virtual const Quad * concepts::Quad::child ( uint i ) const

virtual

Implements concepts::Connector2.

◆ child() [2/2]

virtual Quad * concepts::Quad::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.

◆ children_()

Scan< Quad > * concepts::Quad::children_ ( ) const

inlineprotected

Scanner over the children.

Definition at line 388 of file topology.hh.

◆ clone()

Quad * concepts::Quad::clone	(	Edge &	edg0,
		Edge &	edg1,
		Edge &	edg2,
		Edge &	edg3
	)		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 396 of file topology.hh.

◆ edge()

Edge * concepts::Quad::edge ( uint i ) const

inlinevirtual

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.

Definition at line 316 of file topology.hh.

◆ getStrategy()

const QuadSubdivision * concepts::Quad::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 361 of file topology.hh.

◆ info()

virtual std::ostream & concepts::Quad::info ( std::ostream & os ) const

protectedvirtual

Returns information in an output stream.

Reimplemented from concepts::Connector.

◆ key()

const Key & concepts::Connector::key ( ) const

inlineinherited

Returns the key of the connector.

Definition at line 105 of file connector.hh.

◆ numEdges()

int concepts::Quad::numEdges ( ) const

inline

Definition at line 323 of file topology.hh.

◆ numVertices()

int concepts::Quad::numVertices ( ) const

inline

Definition at line 319 of file topology.hh.

◆ operator==()

int concepts::Connector::operator== ( const Connector & cntr ) const

inlineinherited

Comparison operator.

Definition at line 102 of file connector.hh.

◆ regular()

bool concepts::Quad::regular ( ) const

inline

Definition at line 336 of file topology.hh.

◆ related()

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

◆ rho()

Z2 concepts::Quad::rho ( int i ) const

inline

Returns the orientation of an edge.

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

Parameters

i	Index of the edge.

Definition at line 334 of file topology.hh.

◆ setAttrib()

void concepts::Connector::setAttrib ( uint attrb )

inlineinherited

Definition at line 111 of file connector.hh.

◆ setStrategy()

void concepts::Quad::setStrategy ( const QuadSubdivision * strategy = 0 )

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()

Vertex * concepts::Quad::vertex ( uint i ) const

inlinevirtual

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

Parameters

i	Index of the vertex

Implements concepts::Connector2.

Definition at line 317 of file topology.hh.

Friends And Related Symbol Documentation

◆ QuadSubdiv2H

friend class QuadSubdiv2H

friend

Definition at line 274 of file topology.hh.

◆ QuadSubdiv2V

friend class QuadSubdiv2V

friend

Definition at line 275 of file topology.hh.

◆ QuadSubdiv4

friend class QuadSubdiv4

friend

Definition at line 273 of file topology.hh.

Member Data Documentation

◆ attrib_

Attribute concepts::Connector::attrib_

protectedinherited

Attribute.

Definition at line 132 of file connector.hh.

◆ chld_

concepts::Joiner<Quad*, 1>* concepts::Quad::chld_

protected

List of Pointers to the children.

Definition at line 370 of file topology.hh.

◆ cnt_

uint concepts::Connector2::cnt_

staticprotectedinherited

Counter for the connectors. This counter is used to create the unique key of the connector.

Definition at line 263 of file connector.hh.

◆ edg_

Edge* concepts::Quad::edg_[4]

protected

Array of the edges.

Definition at line 376 of file topology.hh.

◆ key_

Key concepts::Connector::key_

protectedinherited

Unique key of the connector.

Definition at line 129 of file connector.hh.

◆ regular_

bool concepts::Quad::regular_

protected

Regular Cell, deleting of children possible.

Definition at line 373 of file topology.hh.

◆ rho_

Z2 concepts::Quad::rho_[4]

protected

Array of the orientation flags for the edges.

Definition at line 379 of file topology.hh.

◆ rhoTriv_

std::map<Key, Z2> concepts::Quad::rhoTriv_

staticprotected

orientation of trivial edges (with idential vertices)

Definition at line 382 of file topology.hh.

◆ subdivStrategy_

const QuadSubdivision* concepts::Quad::subdivStrategy_

protected

Subdivision strategy for the quadrilateral.

Definition at line 385 of file topology.hh.

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

geometry/topology.hh

Class documentation of Concepts

Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ Quad() [1/2]

◆ Quad() [2/2]

Member Function Documentation

◆ attrib()

◆ child() [1/2]

◆ child() [2/2]

◆ children_()

◆ clone()

◆ edge()

◆ getStrategy()

◆ info()

◆ key()

◆ numEdges()

◆ numVertices()

◆ operator==()

◆ regular()

◆ related()

◆ rho()

◆ setAttrib()

◆ setStrategy()

◆ vertex()

Friends And Related Symbol Documentation

◆ QuadSubdiv2H

◆ QuadSubdiv2V

◆ QuadSubdiv4

Member Data Documentation

◆ attrib_

◆ chld_

◆ cnt_

◆ edg_

◆ key_

◆ regular_

◆ rho_

◆ rhoTriv_

◆ subdivStrategy_