geom::mesh Class Reference

Half-edge mesh. More...

#include <mesh.hpp>

Classes
struct	edge
	Half-edge mesh edge, containing its index and pointers to its starting vertex, parent face, and related edges. More...
struct	face
	Half-edge mesh face, containing its index and a pointer to its first edge. More...
struct	vertex
	Half-edge mesh vertex, containing its index, a pointer to its parent edge, and its position vector. More...

Public Types
typedef std::vector< edge * >	loop
	List of edges which form a face. More...

Public Member Functions
constexpr	mesh () noexcept=default
	Constructs a mesh. More...
	mesh (const mesh &other)
	Copy-constructs a mesh. More...
	~mesh () noexcept
	Destructs a mesh. More...
mesh &	operator= (const mesh &other)
	Copies another mesh into this mesh. More...
void	clear () noexcept
	Removes all vertices, edges, and faces from the mesh. More...
mesh::vertex *	add_vertex (const float3 &position)
	Adds a vertex to the mesh. More...
mesh::edge *	add_edge (mesh::vertex *a, mesh::vertex *b)
	Adds two half edges to the mesh. More...
mesh::face *	add_face (const loop &loop)
	Adds a face to the mesh. More...
void	remove_face (mesh::face *face)
	Removes a face from the mesh. More...
void	remove_edge (mesh::edge *edge)
	Removes an edge and all dependent faces from the mesh. More...
void	remove_vertex (mesh::vertex *vertex)
	Removes a vertex, all dependent edges, and all dependent faces from the mesh. More...
const std::vector< mesh::vertex * > &	get_vertices () const
	Returns the mesh vertices. More...
const std::vector< mesh::edge * > &	get_edges () const
	Returns the mesh edges. More...
const std::vector< mesh::face * > &	get_faces () const
	Returns the mesh faces. More...

Detailed Description

Half-edge mesh.

See also

http://kaba.hilvi.org/homepage/blog/halfedge/halfedge.htm

Definition at line 33 of file mesh.hpp.

Member Typedef Documentation

loop

typedef std::vector<edge*> geom::mesh::loop

List of edges which form a face.

Definition at line 94 of file mesh.hpp.

Constructor & Destructor Documentation

mesh() [1/2]

constexpr geom::mesh::mesh ( )

constexprdefaultnoexcept

Constructs a mesh.

mesh() [2/2]

geom::mesh::mesh

(

const mesh &

other

)

Copy-constructs a mesh.

Definition at line 25 of file mesh.cpp.

~mesh()

geom::mesh::~mesh ( )

noexcept

Destructs a mesh.

Definition at line 30 of file mesh.cpp.

Member Function Documentation

add_edge()

mesh::edge * geom::mesh::add_edge	(	mesh::vertex *	a,
		mesh::vertex *	b
	)

Adds two half edges to the mesh.

Parameters

a	Vertex from which the edge originates.
b	Vertex at which the edge ends.

Returns

Pointer to the half edge ab. The symmetric half edge ba can be accessed through ab->symmetric.

Definition at line 159 of file mesh.cpp.

add_face()

mesh::face * geom::mesh::add_face

(

const loop &

loop

)

Adds a face to the mesh.

Parameters

loop	List of edges which form the face.

Returns

Pointer to the added face.

Exceptions

std::runtime_error	Empty edge loop.
std::runtime_error	Disconnected edge loop.
std::runtime_error	Non-manifold mesh 1.
std::runtime_error	Non-manifold mesh 2.

Definition at line 212 of file mesh.cpp.

add_vertex()

mesh::vertex * geom::mesh::add_vertex

(

const float3 &

position

)

Adds a vertex to the mesh.

Parameters

position

Position of the vertex.

Returns

Pointer to the added vertex.

Warning

The added vertex will initially have a null edge.

Definition at line 145 of file mesh.cpp.

clear()

void geom::mesh::clear ( )

noexcept

Removes all vertices, edges, and faces from the mesh.

Definition at line 123 of file mesh.cpp.

get_edges()

const std::vector< mesh::edge * > & geom::mesh::get_edges ( ) const

inline

Returns the mesh edges.

Definition at line 204 of file mesh.hpp.

get_faces()

const std::vector< mesh::face * > & geom::mesh::get_faces ( ) const

inline

Returns the mesh faces.

Definition at line 209 of file mesh.hpp.

get_vertices()

const std::vector< mesh::vertex * > & geom::mesh::get_vertices ( ) const

inline

Returns the mesh vertices.

Definition at line 199 of file mesh.hpp.

operator=()

mesh & geom::mesh::operator=

(

const mesh &

other

)

Copies another mesh into this mesh.

Parameters

other

Mesh to copy.

Returns

Reference to this mesh.

Definition at line 35 of file mesh.cpp.

remove_edge()

void geom::mesh::remove_edge

(

mesh::edge *

edge

)

Removes an edge and all dependent faces from the mesh.

Parameters

edge	Edge to be removed. This edge will be deallocated after removal.

Definition at line 288 of file mesh.cpp.

remove_face()

void geom::mesh::remove_face

(

mesh::face *

face

)

Removes a face from the mesh.

Parameters

face	Face to be removed. This face will be deallocated after removal.

Definition at line 264 of file mesh.cpp.

remove_vertex()

void geom::mesh::remove_vertex

(

mesh::vertex *

vertex

)

Removes a vertex, all dependent edges, and all dependent faces from the mesh.

Parameters

vertex

Vertex to be removed. This vertex will be deallocated after removal.

Definition at line 330 of file mesh.cpp.

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

• mesh.hpp
• mesh.cpp