concepts::Tetrahedron Class Reference

#include <topology3D.hh>

Inheritance diagram for concepts::Tetrahedron:

Public Member Functions
	Tetrahedron (Triangle &tri0, Triangle &tri1, Triangle &tri2, Triangle &tri3, Attribute attrib=Attribute())
virtual Tetrahedron *	child (uint i, bool mode=0)
virtual const Tetrahedron *	child (uint i) const
Edge *	edge (uint i) const
Triangle *	face (uint i) const
Vertex *	vertex (uint i) const
int	rho (int i) const
int	tau (int i) 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.

Protected Attributes
Key	key_
	Unique key of the connector.
Attribute	attrib_
	Attribute.

Static Protected Attributes
static uint	cnt_

Detailed Description

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

Every face can have two different orientations in the tetrahedron (this is stored in the array rho – similar to the orientation of an edge in a triangle or quadrilateral, see geo_Triangle or qeo_Quadrilateral) and it can have three possible rotations (enumerating the vertices), stored in the array tau_.

Author

Philipp Frauenfelder, 2000

Definition at line 35 of file topology3D.hh.

Constructor & Destructor Documentation

Tetrahedron()

concepts::Tetrahedron::Tetrahedron	(	Triangle &	tri0,
		Triangle &	tri1,
		Triangle &	tri2,
		Triangle &	tri3,
		Attribute	attrib = Attribute()
	)

Constructor. Creates a tetrahedron out of four triangles. The faces must form a tetrahedron.

The first triangle is thought to be the floor of the tetrahedron and its normal orientation is right screwed into the tetrahedron. The normal orientation of the other three triangles (forming the walls of the tetrahedron) is right screwed out of the tetrahedron.

The walls of the tetrahedron must be given in the proper order: they must follow the normal orientation of the floor.

Parameters

tri0	Floor of the tetrahedron
tri1..tri3	Walls of the tetrahedron
attrib	Attribute of the tetrahedron

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 Tetrahedron * concepts::Tetrahedron::child ( uint  i ) const

virtual

Implements concepts::Connector3.

child() [2/2]

virtual Tetrahedron * concepts::Tetrahedron::child ( uint  i, bool  mode = 0  )

virtual

Returns a child.

If children are created, eight new children are created (with the same attributes as this one). All faces of the tetrahedron are refined and one new edge is introduced. This gives one new tetrahedron per vertex and one per face.

Parameters

i	Index of the child to be returned.
mode	mode = 1: No children are created mode = 0: If no childs exist, eight new children are created.

Implements concepts::Connector3.

edge()

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

virtual

Returns a 1D component: edge. A 3D element consists of 2D, 1D and 0D elements, the edges can be queried here.

Parameters

i	Index of the edge

Implements concepts::Connector3.

face()

Triangle * concepts::Tetrahedron::face ( uint  i ) const

inlinevirtual

Returns a 2D component: face. A 3D element consists of 2D, 1D and 0D elements, the faces can be queried here.

Parameters

i	Index of the face

Implements concepts::Connector3.

Definition at line 73 of file topology3D.hh.

info()

virtual std::ostream & concepts::Tetrahedron::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.

operator==()

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

inlineinherited

Comparison operator.

Definition at line 102 of file connector.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()

int concepts::Tetrahedron::rho ( int  i ) const

inline

Returns the orientation of a face. See the description of rho_.

Parameters

i	Index of the face

Definition at line 79 of file topology3D.hh.

setAttrib()

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

inlineinherited

Definition at line 111 of file connector.hh.

tau()

int concepts::Tetrahedron::tau ( int  i ) const

inline

Returns the rotation of a face. See the description of tau_.

Parameters

i	Index of the face

Definition at line 85 of file topology3D.hh.

vertex()

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

virtual

Returns a 0D component: vertex A 3D element consists of 2D, 1D and 0D elements, the vertices can be queried here.

Parameters

i	Index of the vertex

Implements concepts::Connector3.

Member Data Documentation

attrib_

Attribute concepts::Connector::attrib_

protectedinherited

Attribute.

Definition at line 132 of file connector.hh.

cnt_

uint concepts::Connector3::cnt_

staticprotectedinherited

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

Definition at line 322 of file connector.hh.

key_

Key concepts::Connector::key_

protectedinherited

Unique key of the connector.

Definition at line 129 of file connector.hh.

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

• geometry/topology3D.hh