#include <obj_reader.h>

Inheritance diagram for cgv::media::mesh::obj_reader_base:

Public Types
typedef illum::obj_material::color_type	color_type
	type used for rgba colors

Protected Attributes
unsigned	group_index
	keep track of the current group

unsigned	nr_groups
	number of groups

unsigned	material_index
	keep track of current material index

unsigned	nr_materials
	number of materials

std::map< std::string, unsigned >	material_index_lut
	mapping from material names to material indices

helpers for reading
int	minus

unsigned	nr_normals

unsigned	nr_texcoords

bool	have_default_material

std::set< std::string >	mtl_lib_files

color_type	parse_color (const std::vector< cgv::utils::token > &t, unsigned off=0) const
	parse a color, if alpha not given it defaults to 1

void	parse_face (const std::vector< cgv::utils::token > &tokens)

void	parse_material (const std::vector< cgv::utils::token > &tokens)

virtual void	parse_and_process_vertex (const std::vector< cgv::utils::token > &tokens)=0

virtual void	parse_and_process_normal (const std::vector< cgv::utils::token > &tokens)=0

virtual void	parse_and_process_texcoord (const std::vector< cgv::utils::token > &tokens)=0

status info during reading
std::string	path_name
	store the path name

unsigned	get_current_group () const
	return the index of the currently selected group or -1 if no group is defined

unsigned	get_current_material () const
	return the index of the currently selected material or -1 if no material is defined

virtual interface
virtual void	process_comment (const std::string &comment)
	overide this function to process a comment

virtual void	process_color (const color_type &c)
	overide this function to process a color (this called for vc prefixes which is is not in the standard but for example used in pobj-files) More...

void	convert_to_positive (unsigned vcount, int vertices, int texcoords, int *normals, unsigned v, unsigned n, unsigned t)
	convert negative indices to positive ones by adding the number of elements

virtual void	process_face (unsigned vcount, int vertices, int texcoords=0, int *normals=0)
	overide this function to process a face, the indices start with 0 More...

virtual void	process_group (const std::string &name, const std::string &parameters)
	overide this function to process a group given by name and parameter string

virtual void	process_material (const cgv::media::illum::obj_material &mtl, unsigned idx)
	process a material definition. If a material with a certain name is overwritten, it will receive the same index More...

	obj_reader_base ()

virtual bool	read_obj (const std::string &file_name)
	read an obj file

virtual bool	read_mtl (const std::string &file_name)
	read a material file

virtual void	clear ()
	clear the reader such that a new file can be read

Detailed Description

base class for obj reader with implementation that is independent of coordinate type.

Member Function Documentation

void cgv::media::mesh::obj_reader_base::process_color ( const color_type & c )

protectedvirtual

overide this function to process a color (this called for vc prefixes which is is not in the standard but for example used in pobj-files)

overide this function to process a normal

void cgv::media::mesh::obj_reader_base::process_face	(	unsigned	vcount,
		int *	vertices,
		int *	texcoords = `0`,
		int *	normals = `0`
	)

protectedvirtual

overide this function to process a face, the indices start with 0

overide this function to process a face

void cgv::media::mesh::obj_reader_base::process_material	(	const cgv::media::illum::obj_material &	mtl,
		unsigned	idx
	)

protectedvirtual

process a material definition. If a material with a certain name is overwritten, it will receive the same index

process a material definition

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