OpenMEEG::Mesh Class Reference

Mesh class. More...

#include <mesh.h>

Inherits Triangles.

Public Types
typedef std::vector< Triangle * >	VectPTriangle
typedef std::vector< Vertex * >	VectPVertex
typedef VectPVertex::iterator	vertex_iterator
typedef VectPVertex::const_iterator	const_vertex_iterator
typedef VectPVertex::const_reverse_iterator	const_vertex_reverse_iterator

Public Member Functions
	Mesh ()
	default constructor More...
	Mesh (const unsigned &nv, const unsigned &nt)
	constructor from scratch (add vertices/triangles one by one) More...
	Mesh (const Mesh &m)
	constructor from another mesh More...
	Mesh (Vertices &av, const std::string name="")
	constructor using an outisde storage for vertices More...
	Mesh (std::string filename, const bool verbose=true, const std::string n="")
	constructor loading directly a mesh file named More...
	~Mesh ()
	Destructor. More...
vertex_iterator	vertex_begin ()
vertex_iterator	vertex_end ()
const size_t	vertex_size () const
const_vertex_iterator	vertex_begin () const
const_vertex_iterator	vertex_end () const
const_vertex_reverse_iterator	vertex_rbegin () const
const_vertex_reverse_iterator	vertex_rend () const
std::string &	name ()
const std::string &	name () const
const VectPVertex &	vertices () const
const size_t	nb_vertices () const
const size_t	nb_triangles () const
Vertices	all_vertices () const
const size_t	nb_all_vertices () const
void	add_vertex (const Vertex &v)
	properly add vertex to the list. More...
*void	info (const bool verbous=false) const
	Print info Print to std::cout some info about the mesh. More...
bool	has_self_intersection () const
	check if the mesh self-intersects More...
bool	intersection (const Mesh &) const
	check if the mesh intersects another mesh More...
bool	has_correct_orientation () const
	check the local orientation of the mesh triangles More...
void	build_mesh_vertices ()
	construct the list of the mesh vertices out of its triangles More...
void	generate_indices ()
	generate indices (if allocate) More...
void	update ()
	recompute triangles normals, area, and links More...
void	merge (const Mesh &, const Mesh &)
	properly merge two meshes into one More...
void	flip_triangles ()
	Flip all triangles. More...
void	correct_local_orientation ()
	correct the local orientation of the mesh triangles More...
void	correct_global_orientation ()
	correct the global orientation (if there is one) More...
double	compute_solid_angle (const Vect3 &p) const
	Given a point p, it computes the solid angle. More...
const VectPTriangle &	get_triangles_for_vertex (const Vertex &V) const
	get the triangles associated with vertex V More...
VectPTriangle	adjacent_triangles (const Triangle &) const
	get the adjacent triangles More...
Normal	normal (const Vertex &v) const
	get the Normal at vertex More...
void	laplacian (SymMatrix &A) const
	compute mesh laplacian More...
bool &	outermost ()
const bool &	outermost () const
	Returns True if it is an outermost mesh. More...
void	smooth (const double &smoothing_intensity, const unsigned &niter)
	Smooth Mesh. More...
void	gradient_norm2 (SymMatrix &A) const
	Compute the square norm of the surfacic gradient. More...
unsigned	load (const std::string &filename, const bool &verbose=true, const bool &read_all=true)
	Read mesh from file. More...
unsigned	load_tri (std::istream &, const bool &read_all=true)
unsigned	load_tri (const std::string &, const bool &read_all=true)
unsigned	load_bnd (std::istream &, const bool &read_all=true)
unsigned	load_bnd (const std::string &, const bool &read_all=true)
unsigned	load_off (std::istream &, const bool &read_all=true)
unsigned	load_off (const std::string &, const bool &read_all=true)
unsigned	load_mesh (std::istream &, const bool &read_all=true)
unsigned	load_mesh (const std::string &, const bool &read_all=true)
template<typename T >
unsigned	load_vtk (T, const bool &read_all=true)
template<typename T >
unsigned	load_gifti (T, const bool &)
template<typename T >
void	save_gifti (T) const
*void	save (const std::string &filename) const
	Save mesh to file. More...
void	save_vtk (const std::string &) const
void	save_bnd (const std::string &) const
void	save_tri (const std::string &) const
void	save_off (const std::string &) const
void	save_mesh (const std::string &) const
Mesh &	operator= (const Mesh &m)
const bool &	current_barrier () const
bool &	current_barrier ()
const bool &	isolated () const
bool &	isolated ()

Private Types
typedef std::map< std::pair < const Vertex *, const Vertex * > , int >	EdgeMap
	map the edges with an unsigned More...

Private Member Functions
void	destroy ()
void	copy (const Mesh &)
const EdgeMap	compute_edge_map () const
void	orient_adjacent_triangles (std::stack< Triangle * > &t_stack, std::map< Triangle *, bool > &tri_reoriented)
bool	triangle_intersection (const Triangle &, const Triangle &) const
Vect3	P1gradient (const Vect3 &p0, const Vect3 &p1, const Vect3 &p2) const
	P1gradient : aux function to compute the surfacic gradient. More...
double	P0gradient_norm2 (const Triangle &t1, const Triangle &t2) const
	P0gradient_norm2 : aux function to compute the square norm of the surfacic gradient. More...

Private Attributes
std::string	name_
	Name of the mesh. More...
std::map< const Vertex *, VectPTriangle >	links_
	links[&v] are the triangles that contain vertex v. More...
Vertices *	all_vertices_
	Pointer to all the vertices. More...
VectPVertex	vertices_
	Vector of pointers to the mesh vertices. More...
bool	outermost_
	Is it an outermost mesh ? (i.e does it touch the Air domain) More...
bool	allocate_
	Are the vertices allocate within the mesh or shared ? More...
std::set< Vertex >	set_vertices_
bool	current_barrier_
	handle multiple 0 conductivity domains More...
bool	isolated_

Friends
std::istream &	operator>> (std::istream &is, Mesh &m)
	insert a triangle into the mesh More...

Detailed Description

Mesh class.

Mesh is a collection of triangles

Definition at line 85 of file mesh.h.

Member Typedef Documentation

typedef std::vector<Triangle*> OpenMEEG::Mesh::VectPTriangle

Definition at line 88 of file mesh.h.

typedef std::vector<Vertex*> OpenMEEG::Mesh::VectPVertex

Definition at line 89 of file mesh.h.

typedef VectPVertex::iterator OpenMEEG::Mesh::vertex_iterator

Definition at line 90 of file mesh.h.

typedef VectPVertex::const_iterator OpenMEEG::Mesh::const_vertex_iterator

Definition at line 91 of file mesh.h.

typedef VectPVertex::const_reverse_iterator OpenMEEG::Mesh::const_vertex_reverse_iterator

Definition at line 92 of file mesh.h.

typedef std::map<std::pair<const Vertex *, const Vertex *>, int> OpenMEEG::Mesh::EdgeMap

private

map the edges with an unsigned

Definition at line 269 of file mesh.h.

Constructor & Destructor Documentation

OpenMEEG::Mesh::Mesh ( )

inline

default constructor

Definition at line 97 of file mesh.h.

OpenMEEG::Mesh::Mesh ( const unsigned &  nv, const unsigned &  nt  )

inline

constructor from scratch (add vertices/triangles one by one)

Parameters

nv	allocate space for vertices
nt	allocate space for triangles

Definition at line 103 of file mesh.h.

OpenMEEG::Mesh::Mesh ( const Mesh &  m )

inline

constructor from another mesh

Parameters

m

Definition at line 111 of file mesh.h.

OpenMEEG::Mesh::Mesh ( Vertices &  av, const std::string  name = ""  )

inline

constructor using an outisde storage for vertices

Parameters

av	Where to store vertices
name	Mesh name

Definition at line 115 of file mesh.h.

OpenMEEG::Mesh::Mesh ( std::string  filename, const bool  verbose = true, const std::string  n = ""  )

inline

constructor loading directly a mesh file named

Parameters

filename	. Be verbose if
verbose	is true. The mesh name is
n	.

Definition at line 121 of file mesh.h.

OpenMEEG::Mesh::~Mesh ( )

inline

Destructor.

Definition at line 129 of file mesh.h.

Member Function Documentation

vertex_iterator OpenMEEG::Mesh::vertex_begin ( )

inline

Definition at line 133 of file mesh.h.

vertex_iterator OpenMEEG::Mesh::vertex_end ( )

inline

Definition at line 134 of file mesh.h.

const size_t OpenMEEG::Mesh::vertex_size ( ) const

inline

Definition at line 136 of file mesh.h.

const_vertex_iterator OpenMEEG::Mesh::vertex_begin ( ) const

inline

Definition at line 138 of file mesh.h.

const_vertex_iterator OpenMEEG::Mesh::vertex_end ( ) const

inline

Definition at line 139 of file mesh.h.

const_vertex_reverse_iterator OpenMEEG::Mesh::vertex_rbegin ( ) const

inline

Definition at line 141 of file mesh.h.

const_vertex_reverse_iterator OpenMEEG::Mesh::vertex_rend ( ) const

inline

Definition at line 142 of file mesh.h.

std::string& OpenMEEG::Mesh::name ( )

inline

Returns

the mesh name

Definition at line 144 of file mesh.h.

const std::string& OpenMEEG::Mesh::name ( ) const

inline

Returns

the mesh name

Definition at line 145 of file mesh.h.

const VectPVertex& OpenMEEG::Mesh::vertices ( ) const

inline

Returns

the vector of pointers to the mesh vertices

Definition at line 147 of file mesh.h.

const size_t OpenMEEG::Mesh::nb_vertices ( ) const

inline

Definition at line 148 of file mesh.h.

const size_t OpenMEEG::Mesh::nb_triangles ( ) const

inline

Definition at line 149 of file mesh.h.

Vertices OpenMEEG::Mesh::all_vertices ( ) const

inline

Definition at line 151 of file mesh.h.

const size_t OpenMEEG::Mesh::nb_all_vertices ( ) const

inline

Definition at line 152 of file mesh.h.

void OpenMEEG::Mesh::add_vertex

(

const Vertex &

v

)

properly add vertex to the list.

* void OpenMEEG::Mesh::info

(

const bool

verbous = false

)

const

Print info Print to std::cout some info about the mesh.

Returns

void

See Also

bool OpenMEEG::Mesh::has_self_intersection

(

)

const

check if the mesh self-intersects

bool OpenMEEG::Mesh::intersection

(

const Mesh &

)

const

check if the mesh intersects another mesh

bool OpenMEEG::Mesh::has_correct_orientation

(

)

const

check the local orientation of the mesh triangles

void OpenMEEG::Mesh::build_mesh_vertices

(

)

construct the list of the mesh vertices out of its triangles

void OpenMEEG::Mesh::generate_indices

(

)

generate indices (if allocate)

void OpenMEEG::Mesh::update

(

)

recompute triangles normals, area, and links

void OpenMEEG::Mesh::merge	(	const Mesh &	,
		const Mesh &
	)

properly merge two meshes into one

void OpenMEEG::Mesh::flip_triangles ( )

inline

Flip all triangles.

Definition at line 173 of file mesh.h.

void OpenMEEG::Mesh::correct_local_orientation

(

)

correct the local orientation of the mesh triangles

void OpenMEEG::Mesh::correct_global_orientation

(

)

correct the global orientation (if there is one)

double OpenMEEG::Mesh::compute_solid_angle

(

const Vect3 &

p

)

const

Given a point p, it computes the solid angle.

const VectPTriangle& OpenMEEG::Mesh::get_triangles_for_vertex

(

const Vertex &

V

)

const

get the triangles associated with vertex V

Returns

the links

VectPTriangle OpenMEEG::Mesh::adjacent_triangles

(

const Triangle &

)

const

get the adjacent triangles

Normal OpenMEEG::Mesh::normal

(

const Vertex &

v

)

const

get the Normal at vertex

void OpenMEEG::Mesh::laplacian

(

SymMatrix &

A

)

const

compute mesh laplacian

bool& OpenMEEG::Mesh::outermost ( )

inline

Definition at line 186 of file mesh.h.

const bool& OpenMEEG::Mesh::outermost ( ) const

inline

Returns True if it is an outermost mesh.

Definition at line 187 of file mesh.h.

void OpenMEEG::Mesh::smooth	(	const double &	smoothing_intensity,
		const unsigned &	niter
	)

Smooth Mesh.

Parameters

smoothing_intensity
niter

Returns

void

void OpenMEEG::Mesh::gradient_norm2

(

SymMatrix &

A

)

const

Compute the square norm of the surfacic gradient.

unsigned OpenMEEG::Mesh::load	(	const std::string &	filename,
		const bool &	verbose = true,
		const bool &	read_all = true
	)

Read mesh from file.

Parameters

filename	can be .vtk, .tri (ascii), .off .bnd or .mesh. Be verbose if
verbose	is true. Id
read_all	is false then it only returns the total number of vertices.

unsigned OpenMEEG::Mesh::load_tri	(	std::istream &	,
		const bool &	read_all = true
	)

unsigned OpenMEEG::Mesh::load_tri	(	const std::string &	,
		const bool &	read_all = true
	)

unsigned OpenMEEG::Mesh::load_bnd	(	std::istream &	,
		const bool &	read_all = true
	)

unsigned OpenMEEG::Mesh::load_bnd	(	const std::string &	,
		const bool &	read_all = true
	)

unsigned OpenMEEG::Mesh::load_off	(	std::istream &	,
		const bool &	read_all = true
	)

unsigned OpenMEEG::Mesh::load_off	(	const std::string &	,
		const bool &	read_all = true
	)

unsigned OpenMEEG::Mesh::load_mesh	(	std::istream &	,
		const bool &	read_all = true
	)

unsigned OpenMEEG::Mesh::load_mesh	(	const std::string &	,
		const bool &	read_all = true
	)

template<typename T >

unsigned OpenMEEG::Mesh::load_vtk ( T  , const bool &  read_all = true  )

inline

Definition at line 222 of file mesh.h.

template<typename T >

unsigned OpenMEEG::Mesh::load_gifti ( T  , const bool &    )

inline

Definition at line 233 of file mesh.h.

template<typename T >

void OpenMEEG::Mesh::save_gifti ( T  ) const

inline

Definition at line 238 of file mesh.h.

* void OpenMEEG::Mesh::save

(

const std::string &

filename

)

const

Save mesh to file.

Parameters

filename

can be .vtk, .tri (ascii), .bnd, .off or .mesh

void OpenMEEG::Mesh::save_vtk

(

const std::string &

)

const

void OpenMEEG::Mesh::save_bnd

(

const std::string &

)

const

void OpenMEEG::Mesh::save_tri

(

const std::string &

)

const

void OpenMEEG::Mesh::save_off

(

const std::string &

)

const

void OpenMEEG::Mesh::save_mesh

(

const std::string &

)

const

Mesh& OpenMEEG::Mesh::operator= ( const Mesh &  m )

inline

Definition at line 257 of file mesh.h.

void OpenMEEG::Mesh::destroy ( )

private

void OpenMEEG::Mesh::copy ( const Mesh &  )

private

const EdgeMap OpenMEEG::Mesh::compute_edge_map ( ) const

private

void OpenMEEG::Mesh::orient_adjacent_triangles ( std::stack< Triangle * > &  t_stack, std::map< Triangle *, bool > &  tri_reoriented  )

private

bool OpenMEEG::Mesh::triangle_intersection ( const Triangle &  , const Triangle &    ) const

private

Vect3 OpenMEEG::Mesh::P1gradient ( const Vect3 &  p0, const Vect3 &  p1, const Vect3 &  p2  ) const

inlineprivate

P1gradient : aux function to compute the surfacic gradient.

Definition at line 282 of file mesh.h.

double OpenMEEG::Mesh::P0gradient_norm2 ( const Triangle &  t1, const Triangle &  t2  ) const

inlineprivate

P0gradient_norm2 : aux function to compute the square norm of the surfacic gradient.

Definition at line 286 of file mesh.h.

const bool& OpenMEEG::Mesh::current_barrier ( ) const

inline

Definition at line 301 of file mesh.h.

bool& OpenMEEG::Mesh::current_barrier ( )

inline

Definition at line 302 of file mesh.h.

const bool& OpenMEEG::Mesh::isolated ( ) const

inline

Definition at line 303 of file mesh.h.

bool& OpenMEEG::Mesh::isolated ( )

inline

Definition at line 304 of file mesh.h.

Friends And Related Function Documentation

std::istream& operator>> ( std::istream &  is, Mesh &  m  )

friend

insert a triangle into the mesh

Member Data Documentation

std::string OpenMEEG::Mesh::name_

private

Name of the mesh.

Definition at line 290 of file mesh.h.

std::map<const Vertex*,VectPTriangle> OpenMEEG::Mesh::links_

private

links[&v] are the triangles that contain vertex v.

Definition at line 291 of file mesh.h.

Vertices* OpenMEEG::Mesh::all_vertices_

private

Pointer to all the vertices.

Definition at line 292 of file mesh.h.

VectPVertex OpenMEEG::Mesh::vertices_

private

Vector of pointers to the mesh vertices.

Definition at line 293 of file mesh.h.

bool OpenMEEG::Mesh::outermost_

private

Is it an outermost mesh ? (i.e does it touch the Air domain)

Definition at line 294 of file mesh.h.

bool OpenMEEG::Mesh::allocate_

private

Are the vertices allocate within the mesh or shared ?

Definition at line 295 of file mesh.h.

std::set<Vertex> OpenMEEG::Mesh::set_vertices_

private

Definition at line 296 of file mesh.h.

bool OpenMEEG::Mesh::current_barrier_

private

handle multiple 0 conductivity domains

Definition at line 298 of file mesh.h.

bool OpenMEEG::Mesh::isolated_

private

Definition at line 299 of file mesh.h.

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

• /builddir/build/BUILD/openmeeg-2.4-rc4/OpenMEEG/include/mesh.h