Defines a set of interface classes that define a mesh manager and provides mesh-related tools that build on these interfaces. More...

Namespaces
namespace	hybrid2d
	An alternative implementation of a hybrid2d mesh manager that uses Pointers to store sub-entity relations.

namespace	test_utils
	Utilities for testing sanity of mesh data structures and tests involving meshes.

namespace	utils
	Contains helper functions and classes that all operate on the interface classes defined in lf::mesh.

Classes
class	Entity
	Interface class representing a topological entity in a cellular complex More...

class	Mesh
	Abstract interface for objects representing a single mesh. More...

class	MeshFactory
	Interface class for initialization of a mesh object. More...

Enumerations
enum class	Orientation : int { positive = 1 , negative = -1 }
	Relative orientation of a sub-entity. More...

Functions
int	to_sign (Orientation o)

char	to_char (Orientation o)

std::ostream &	operator<< (std::ostream &stream, const lf::mesh::Entity &entity)
	Operator overload to print the reference element of `Entity` to a stream, such as `std::cout`.

Detailed Description

Defines a set of interface classes that define a mesh manager and provides mesh-related tools that build on these interfaces.

See also: lf::mesh::hybrid2d for a concrete implementation of a mesh manager.

For a discussion of the functionality and design of mesh data structures see Lecture Document Subsection 2.7.2. A mathematical definition of a finite element mesh is given in Lecture Document Subsection 2.5.1.

Enumeration Type Documentation

◆ Orientation

enum class lf::mesh::Orientation : int

strong

Relative orientation of a sub-entity.

Relative orientation is a fundamental topological concept describing the relationship of of an entity and its subentities.

For 2D meshes it is mainly relevant for edges: If the intrinsic orientation of an edge defined by the ordering of its vertices agrees with the local orientation of that edge in a cell, its relative orientation is positive, otherwise negative.

Enumerator
positive
negative

Definition at line 22 of file entity.h.

Function Documentation

◆ operator<<()

std::ostream & lf::mesh::operator<<	(	std::ostream &	stream,
		const lf::mesh::Entity &	entity )

Operator overload to print the reference element of Entity to a stream, such as std::cout.

Parameters

stream	The stream to which this function should output
entity	The entity to write to `stream`.

Returns: The stream itself.

Definition at line 20 of file entity.cc.

References lf::mesh::Entity::RefEl().

◆ to_char()

char lf::mesh::to_char ( Orientation o )

Definition at line 8 of file entity.cc.

References negative, and positive.

◆ to_sign()

int lf::mesh::to_sign ( Orientation o )

Definition at line 7 of file entity.cc.

Namespaces

Classes

Enumerations

Functions