linDG2D::EdgeInfo Class Reference

#include <edgeInfo.hh>

Public Member Functions
	EdgeInfo ()
	Default Constructor. Needed to get new EdgeInfo from a hash map access.
void	addCell (const concepts::Triangle2d *cell, const uint idx)
	Add a cell adjacent to the edge.
const concepts::Triangle2d *	cell (uint i) const
uint	idx (uint i) const
const concepts::Edge &	edge () const
	Return topological edge represented.
Real	length () const
	Return the length of the edge.
Real	meanHeight () const
	Return the mean height of the triangle(s) adjacent to the edge.
const concepts::Real2d	normal () const
	Return a vector normal to the edge, pointing out of first triangle.
concepts::Real2d	mapRefTri (Real xi, uint i) const
concepts::Real2d	map (Real xi) const

Friends
class	test::DGEdgeInfoTest
class	test::DGSpace2dP1Test

Detailed Description

Edge information for DG FEM. Provides information about an edge and its adjacent cell(s) used for DG face integrals. EdgeInfo objects for a mesh can be built up efficently using a MeshInfo object.

Author

Christoph Winkelmann, 2003

Definition at line 31 of file edgeInfo.hh.

Member Function Documentation

cell()

const concepts::Triangle2d * linDG2D::EdgeInfo::cell ( uint  i ) const

inline

Return cell adjacent to the edge

Parameters

i	which cell, left(0) or right(1)

Definition at line 42 of file edgeInfo.hh.

edge()

const concepts::Edge & linDG2D::EdgeInfo::edge ( ) const

inline

Return topological edge represented.

Definition at line 48 of file edgeInfo.hh.

idx()

uint linDG2D::EdgeInfo::idx ( uint  i ) const

inline

Return index of edge represented in cell i

Parameters

i	which cell, left(0) or right(1)

Definition at line 46 of file edgeInfo.hh.

map()

concepts::Real2d linDG2D::EdgeInfo::map

(

Real

xi

)

const

Maps a point on the reference edge (0,1) onto the physical edge. The reference edge is oriented anticlockwise in the left triangle and clockwise in the right triangle.

Parameters

xi	coordinate of the point on the reference edge

mapRefTri()

concepts::Real2d linDG2D::EdgeInfo::mapRefTri	(	Real	xi,
		uint	i
	)		const

Maps a point on the reference edge (0,1) onto the reference triangle of cell i. The reference edge is oriented anticlockwise in the left triangle and clockwise in the right triangle. The reference triangle has the corners (0,0), (0,1), (1,1).

Parameters

xi	coordinate of the point on the reference edge
i	which cell, left(0) or right(1)

Friends And Related Symbol Documentation

test::DGEdgeInfoTest

friend class test::DGEdgeInfoTest

friend

Definition at line 33 of file edgeInfo.hh.

test::DGSpace2dP1Test

friend class test::DGSpace2dP1Test

friend

Definition at line 34 of file edgeInfo.hh.

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

• linDG2D/edgeInfo.hh