#include <CGAL/HDVF/Mesh_object_io.h>

Inherited by CGAL::Homological_discrete_vector_field::Icosphere_object_io< Traits >, CGAL::Homological_discrete_vector_field::Surface_mesh_io< TriangleMesh, Traits >, CGAL::Homological_discrete_vector_field::Tet_object_io< Traits >, and CGAL::Homological_discrete_vector_field::Triangulation_3_io< Triangulation3, Traits >.

Definition

template<typename Traits>
class CGAL::Homological_discrete_vector_field::Mesh_object_io< Traits >

The class Mesh_object_io is an intermediate IO class, used to load triangular/tetraedral meshes and produce simplicial complexes.

Template Parameters

Traits a geometric traits class model of the HDVFTraits concept.

Public Types
typedef Traits::Point	Point

typedef Traits::Bbox	Bbox

Public Member Functions
int	dimension () const
	Returns the dimension of the Mesh_object_io.

	Mesh_object_io (int d=0)

	Mesh_object_io (int d, const std::vector< Point > &vnodes, const std::vector< Io_cell_type > &vcells, bool sort_data=false)
	Constructor from a vector of Point (vertex coordinates) and a vector of simplices.

	Mesh_object_io (const Point &BBmin, const Point &BBmax)
	Build a Mesh_object_io for the bounding box of diagonal `BB_min` - `BBmax`.

const std::vector< Point > &	nodes () const
	Returns the vector of nodes (ie.

int	number_of_nodes () const
	Returns the number of nodes (ie.

const std::vector< Io_cell_type > &	cells () const
	Returns the vector of cells.

void	set_node (size_t i, const Point &P)
	Update the coordinates of a node (ie.

void	push_back (const Mesh_object_io &mesh)
	Add a `Mesh_object_io` to the current `Mesh_object_io`.

void	add_node (const Point &v)

void	clear_cells ()

void	clear_nodes ()

void	clear ()

void	add_cell (Io_cell_type &c, bool sort_indices=false)

size_t	cells_of_dim (int q) const

bool	read_off (const std::string &filename)

bool	write_off (const std::string &filename) const

void	write_to_vtk (const std::string &filename)

bool	write_simp (const std::string &filename)

bool	read_simp (const std::string &filename)

bool	read_nodes_file (const std::string &filename)

std::ostream &	print_infos (std::ostream &out_stream=std::cout) const

Point	centroid () const

double	radius (const Point &bary) const

Bbox	bbox (double ratio=1.) const

Protected Member Functions
template<typename CoefficientRing >
void	write_vtk (const std::string &filename, const std::vector< Point > &nodes, const std::vector< Io_chain_type > &chains, const std::vector< CoefficientRing > *labels=NULL, const std::string scalar_type="none")

Protected Attributes
int	_dim = 0

size_t	_nvertices

size_t	_ncells

size_t	_nedges

std::vector< Point >	_nodes

std::vector< Io_cell_type >	_cells

Friends
std::ostream &	operator<< (std::ostream &out_stream, const Mesh_object_io &mesh_io)

Constructor & Destructor Documentation

◆ Mesh_object_io()

template<typename Traits >

CGAL::Homological_discrete_vector_field::Mesh_object_io< Traits >::Mesh_object_io	(	int	d,
		const std::vector< Point > &	vnodes,
		const std::vector< Io_cell_type > &	vcells,
		bool	sort_data = `false`
	)

Constructor from a vector of Point (vertex coordinates) and a vector of simplices.

Simplices are described by the list of vertex indices.

Parameters

d	The dimension `d` can be positive or negative: if positive: the set of simplicial cells loaded is a "mesh" and all cells have the same dimension if negative: the set of simplicial cells loaded have various dimensions and `d` must be the maximum of these dimensions.

Vertices are described by their index; this index must be unique (vertices with similar underlying points and different vertex indices will be considered as different).

Parameters

vnodes	Vector of vertex coordinates.
vcells	Vector of cells (described by a sorted vector of indices)
sort_data	If `true` the vectors of vertex indices are sorted, if `false` they are assumed to be sorted (faster).

Exceptions

Traits_dimension_mismatch	If the dimension `d` provided does not match the dimension of the Traits, raises a `std::runtime_error`.
Inconsistent_dimension	If the dimension of one of the cell does not match the dimension of the Traits, raises a `std::runtime_error`.

Member Function Documentation

◆ dimension()

template<typename Traits >

int CGAL::Homological_discrete_vector_field::Mesh_object_io< Traits >::dimension ( ) const

Returns the dimension of the Mesh_object_io.

The dimension can be positive or negative:

if positive: the set of simplicial cells loaded is a "mesh" and all cells have the same dimension which is the dimension of the Mesh_object_io
if negative: the set of simplicial cells loaded have various dimensions and the dimension of the Mesh_object_io is the maximum of these dimensions.

◆ nodes()

template<typename Traits >

const std::vector< Point > & CGAL::Homological_discrete_vector_field::Mesh_object_io< Traits >::nodes ( ) const

Returns the vector of nodes (ie.

vertices coordinates).

◆ number_of_nodes()

template<typename Traits >

int CGAL::Homological_discrete_vector_field::Mesh_object_io< Traits >::number_of_nodes ( ) const

Returns the number of nodes (ie.

vertices).

◆ push_back()

template<typename Traits >

void CGAL::Homological_discrete_vector_field::Mesh_object_io< Traits >::push_back ( const Mesh_object_io< Traits > & mesh )

Add a Mesh_object_io to the current Mesh_object_io.

In order to concatenate objects, the function

◆ set_node()

template<typename Traits >

void CGAL::Homological_discrete_vector_field::Mesh_object_io< Traits >::set_node	(	size_t	i,
		const Point &	P
	)

Update the coordinates of a node (ie.

vertex).

Definition

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Constructor & Destructor Documentation

◆ Mesh_object_io()

Member Function Documentation

◆ dimension()

◆ nodes()

◆ number_of_nodes()

◆ push_back()

◆ set_node()