OBJ I/O Functions

I/O Functions for the Wavefront Advanced Visualizer Object Format (OBJ).

Functions
template<typename Graph , typename NamedParameters = CGAL::parameters::Default_named_parameters>
bool	CGAL::IO::read_OBJ (std::istream &is, Graph &g, const NamedParameters &np=parameters::default_values())
	reads the graph g from the stream in, using the Wavefront Advanced Visualizer Object Format (OBJ).
template<typename Graph , typename NamedParameters = CGAL::parameters::Default_named_parameters>
bool	CGAL::IO::read_OBJ (const std::string &fname, Graph &g, const NamedParameters &np=parameters::default_values())
	reads the graph g from the file fname, using the Wavefront Advanced Visualizer Object Format (OBJ).
template<typename Graph , typename NamedParameters = CGAL::parameters::Default_named_parameters>
bool	CGAL::IO::write_OBJ (std::ostream &os, const Graph &g, const NamedParameters &np=parameters::default_values())
	writes the graph g into the output stream, using the Wavefront Advanced Visualizer Object Format (OBJ).
template<typename Graph , typename NamedParameters = CGAL::parameters::Default_named_parameters>
bool	CGAL::IO::write_OBJ (const std::string &fname, const Graph &g, const NamedParameters &np=parameters::default_values())
	writes the graph g into a file named fname, using the Wavefront Advanced Visualizer Object Format (OBJ).

Function Documentation

read_OBJ() [1/2]

template<typename Graph , typename NamedParameters = CGAL::parameters::Default_named_parameters>

bool CGAL::IO::read_OBJ	(	const std::string &	fname,
		Graph &	g,
		const NamedParameters &	np = parameters::default_values()
	)

#include <CGAL/boost/graph/IO/OBJ.h>

reads the graph g from the file fname, using the Wavefront Advanced Visualizer Object Format (OBJ).

The data is expected to represent a 2-manifold (possibly with borders).

Ignores comment lines which start with a hash, and lines with whitespace.

Attention

The graph g is not cleared, and the data from the file are appended.

Template Parameters

Graph	a model of MutableFaceGraph
NamedParameters	a sequence of Named Parameters

Parameters

fname	the name of the input file
g	the graph to be built from the input data
np	optional Named Parameters described below

Optional Named Parameters

vertex_point_map a property map associating points to the vertices of g Type: a class model of WritablePropertyMap with boost::graph_traits<Graph>::vertex_descriptor as key type and Point_3 as value type Default: boost::get(CGAL::vertex_point, g) Extra: If this parameter is omitted, an internal property map for CGAL::vertex_point_t must be available in Graph.
verbose whether extra information is printed when an incident occurs during reading Type: Boolean Default: false

Returns

true if reading was successful and the resulting mesh is valid, false otherwise.

See also

Overloads of this function for specific models of the concept FaceGraph.

read_OBJ() [2/2]

template<typename Graph , typename NamedParameters = CGAL::parameters::Default_named_parameters>

bool CGAL::IO::read_OBJ	(	std::istream &	is,
		Graph &	g,
		const NamedParameters &	np = parameters::default_values()
	)

#include <CGAL/boost/graph/IO/OBJ.h>

reads the graph g from the stream in, using the Wavefront Advanced Visualizer Object Format (OBJ).

The data is expected to represent a 2-manifold (possibly with borders).

Ignores comment lines which start with a hash, and lines with whitespace.

Attention

The graph g is not cleared, and the data from the stream are appended.

Template Parameters

Graph	a model of MutableFaceGraph
NamedParameters	a sequence of Named Parameters

Parameters

is	the input stream
g	the graph to be built from the input data
np	optional Named Parameters described below

Optional Named Parameters

vertex_point_map a property map associating points to the vertices of g Type: a class model of WritablePropertyMap with boost::graph_traits<Graph>::vertex_descriptor as key type and Point_3 as value type Default: boost::get(CGAL::vertex_point, g) Extra: If this parameter is omitted, an internal property map for CGAL::vertex_point_t must be available in Graph.
verbose whether extra information is printed when an incident occurs during reading Type: Boolean Default: false

Returns

true if reading was successful and the resulting mesh is valid, false otherwise.

See also

Overloads of this function for specific models of the concept FaceGraph.

write_OBJ() [1/2]

template<typename Graph , typename NamedParameters = CGAL::parameters::Default_named_parameters>

bool CGAL::IO::write_OBJ	(	const std::string &	fname,
		const Graph &	g,
		const NamedParameters &	np = parameters::default_values()
	)

#include <CGAL/boost/graph/IO/OBJ.h>

writes the graph g into a file named fname, using the Wavefront Advanced Visualizer Object Format (OBJ).

Template Parameters

Graph	a model of FaceListGraph and HalfedgeListGraph
NamedParameters	a sequence of Named Parameters

Parameters

fname	the output file
g	the graph to be written
np	optional Named Parameters described below

Optional Named Parameters

vertex_point_map a property map associating points to the vertices of g Type: a class model of ReadablePropertyMap with boost::graph_traits<Graph>::vertex_descriptor as key type and Point_3 as value type Default: boost::get(CGAL::vertex_point, g) Extra: If this parameter is omitted, an internal property map for CGAL::vertex_point_t must be available in Graph.
stream_precision a parameter used to set the precision (i.e. how many digits are generated) of the output stream Type: int Default: 6

Returns

true if writing was successful, false otherwise.

See also

Overloads of this function for specific models of the concept FaceGraph.

write_OBJ() [2/2]

template<typename Graph , typename NamedParameters = CGAL::parameters::Default_named_parameters>

bool CGAL::IO::write_OBJ	(	std::ostream &	os,
		const Graph &	g,
		const NamedParameters &	np = parameters::default_values()
	)

#include <CGAL/boost/graph/IO/OBJ.h>

writes the graph g into the output stream, using the Wavefront Advanced Visualizer Object Format (OBJ).

Template Parameters

Graph	a model of FaceListGraph and HalfedgeListGraph
NamedParameters	a sequence of Named Parameters

Parameters

os	the output stream
g	the graph to be written
np	optional Named Parameters described below

Optional Named Parameters

vertex_point_map a property map associating points to the vertices of g Type: a class model of ReadablePropertyMap with boost::graph_traits<Graph>::vertex_descriptor as key type and Point_3 as value type Default: boost::get(CGAL::vertex_point, g) Extra: If this parameter is omitted, an internal property map for CGAL::vertex_point_t must be available in Graph.
stream_precision a parameter used to set the precision (i.e. how many digits are generated) of the output stream Type: int Default: the precision of the stream os

Returns

true if writing was successful, false otherwise.

See also

Overloads of this function for specific models of the concept FaceGraph.