linDG2D::EdgeInfo Class Reference

Edge information for DG FEM. More...

#include <edgeInfo.hh>

Collaboration diagram for linDG2D::EdgeInfo:

List of all members.

Public Member Functions
void	addCell (const concepts::Triangle2d *cell, const uint idx)
	Add a cell adjacent to the edge.
const concepts::Triangle2d *	cell (uint i) const
	Return cell adjacent to the edge.
const concepts::Edge &	edge () const
	Return topological edge represented.
	EdgeInfo ()
	Default Constructor. Needed to get new EdgeInfo from a hash map access.
uint	idx (uint i) const
	Return index of edge represented in cell i.
Real	length () const
	Return the length of the edge.
concepts::Real2d	map (Real xi) const
	Maps a point on the reference edge (0,1) onto the physical edge.
concepts::Real2d	mapRefTri (Real xi, uint i) const
	Maps a point on the reference edge (0,1) onto the reference triangle of cell i.
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.
Private Attributes
const concepts::Triangle2d *	cells_ [2]
uint	idxs_ [2]
Friends
class	test::DGEdgeInfoTest
class	test::DGSpace2dP1Test

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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 28 of file edgeInfo.hh.

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Constructor & Destructor Documentation

linDG2D::EdgeInfo::EdgeInfo

(

)

Default Constructor. Needed to get new EdgeInfo from a hash map access.

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Member Function Documentation

void linDG2D::EdgeInfo::addCell	(	const concepts::Triangle2d *	cell,
		const uint	idx
	)

Add a cell adjacent to the edge.

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 39 of file edgeInfo.hh.

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

(

)

const [inline]

Return topological edge represented.

Definition at line 45 of file edgeInfo.hh.

Here is the call graph for this function:

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 43 of file edgeInfo.hh.

Real linDG2D::EdgeInfo::length

(

)

const

Return the length of the edge.

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

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)

Real linDG2D::EdgeInfo::meanHeight

(

)

const

Return the mean height of the triangle(s) adjacent to the edge.

const concepts::Real2d linDG2D::EdgeInfo::normal

(

)

const

Return a vector normal to the edge, pointing out of first triangle.

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Friends And Related Function Documentation

friend class test::DGEdgeInfoTest [friend]

Definition at line 30 of file edgeInfo.hh.

friend class test::DGSpace2dP1Test [friend]

Definition at line 31 of file edgeInfo.hh.

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Member Data Documentation

const concepts::Triangle2d* linDG2D::EdgeInfo::cells_[2] [private]

Definition at line 69 of file edgeInfo.hh.

uint linDG2D::EdgeInfo::idxs_[2] [private]

Definition at line 70 of file edgeInfo.hh.

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

• linDG2D/edgeInfo.hh