#include <dune/grid/alugrid/2d/geometry.hh>

Public Types
typedef FieldMatrix< ctype, cdim, mydim >	JacobianInverseTransposed
	type of jacobian inverse transposed

typedef FieldMatrix< ctype, mydim, cdim >	JacobianTransposed
	type of jacobian transposed

Public Member Functions
	ALU2dGridGeometry ()

	ALU2dGridGeometry (const ALU2dGridGeometry &)
	copy constructor copying pointer and increasing reference counter

	~ALU2dGridGeometry ()
	destructor releasing object

ALU2dGridGeometry &	operator= (const ALU2dGridGeometry &)
	assigment operator

const GeometryType	type () const

int	corners () const
	return the number of corners of this element. Corners are numbered 0...n-1

GlobalCoordinate	corner (int i) const
	access to coordinates of corners. Index is the number of the corner

GlobalCoordinate	global (const LocalCoordinate &local) const

	LocalCoordinate (const GlobalCoordinate &global) const

alu2d_ctype	integrationElement (const LocalCoordinate &local) const
	A(l) , see grid.hh.

alu2d_ctype	volume () const
	return volume of geometry

bool	affine () const
	return true if geometry has affine mapping

const FieldMatrix< alu2d_ctype, cdim, mydim > &	jacobianInverseTransposed (const LocalCoordinate &local) const
	jacobian inverse transposed

const FieldMatrix< alu2d_ctype, mydim, cdim > &	jacobianTransposed (const LocalCoordinate &local) const
	jacobian transposed

bool	buildGeom (const HElementType &item)
	Methods that not belong to the Interface, but have to be public. More...

template<class GeometryType , class LocalGeomType >
bool	buildLocalGeom (const GeometryType &geo, const LocalGeomType &lg)

bool	buildLocalGeometry (const int faceNumber, const int twist, const int coorns)
	build local geometry given local face number

GlobalCoordinate &	getCoordVec (int i)
	return non-const reference to coord vecs

void	print (std::ostream &ss) const
	print internal data

bool	buildGeomInFather (const Geometry &fatherGeom, const Geometry &myGeom)
	build geometry with local coords of child in reference element

GlobalCoordinate	center () const
	return center of the geometry

Protected Member Functions
void	assign (const ALU2dGridGeometry &other)
	assign pointer

void	removeObj ()
	remove pointer object

void	getObject ()
	get a new pointer object

Static Protected Member Functions
static GeometryProviderType &	geoProvider ()
	return storage provider for geometry objects

Detailed Description

template<int mydim, int cdim, class GridImp>
class Dune::ALU2dGridGeometry< mydim, cdim, GridImp >

Defines the geometry part of a mesh entity. Works for all dimensions, element types and dimensions of world. Provides reference element and mapping between local and global coordinates. The element may have different implementations because the mapping can be done more efficient for structured meshes than for unstructured meshes.

dim: An element is a polygonal in a hyperplane of dimension dim. 0 <= dim <= 2 is typically dim=0 is a point.

dimworld: Each corner is a point with dimworld coordinates. ALU2dGridGeometry Empty definition, needs to be specialized for element type