simple implementation of a drawable for a polygonal mesh with support for materials More...

#include <mesh_drawable.h>

Inheritance diagram for cgv::render::gl::mesh_drawable:

Public Types
typedef cgv::media::mesh::simple_mesh< float >	mesh_type
	type of mesh

typedef cgv::media::color< float, cgv::media::RGB >	rgb
	declare rgb color type

typedef cgv::media::color< float, cgv::media::RGB, cgv::media::OPACITY >	rgba
	declare rgba color type

typedef cgv::media::color< cgv::type::uint8_type, cgv::media::RGB >	rgb8
	declare rgb color type

typedef cgv::media::color< cgv::type::uint8_type, cgv::media::RGB, cgv::media::OPACITY >	rgba8
	declare rgba color type

typedef cgv::math::fvec< float, 2 >	vec2
	declare type of 2d vectors

typedef cgv::math::fvec< float, 3 >	vec3
	declare type of 3d vectors

typedef cgv::math::fvec< float, 4 >	vec4
	declare type of homogeneous vectors

typedef cgv::math::vec< float >	vecn
	declare type of vector with varying dimension

typedef cgv::math::fmat< float, 2, 2 >	mat2
	declare type of 2x2 matrices

typedef cgv::math::fmat< float, 3, 3 >	mat3
	declare type of 3x3 matrices

typedef cgv::math::fmat< float, 4, 4 >	mat4
	declare type of 4x4 matrices

typedef cgv::math::fmat< float, 3, 4 >	mat34
	declare type of 3x4 matrices which are often used to store a pose

typedef cgv::math::mat< float >	matn
	declare type of matrices of varying dimensions

typedef cgv::math::fvec< double, 2 >	dvec2
	declare type of 2d vectors

typedef cgv::math::fvec< double, 3 >	dvec3
	declare type of 3d vectors

typedef cgv::math::fvec< double, 4 >	dvec4
	declare type of homogeneous vectors

typedef cgv::math::vec< double >	dvecn
	declare type of vector with varying dimension

typedef cgv::math::fmat< double, 2, 2 >	dmat2
	declare type of 2x2 matrices

typedef cgv::math::fmat< double, 3, 3 >	dmat3
	declare type of 3x3 matrices

typedef cgv::math::fmat< double, 4, 4 >	dmat4
	declare type of 4x4 matrices

typedef cgv::math::fmat< double, 3, 4 >	dmat34
	declare type of 3x4 matrices which are often used to store a pose

typedef cgv::math::mat< double >	dmatn
	declare type of matrices of varying dimensions

typedef cgv::media::axis_aligned_box< float, 2 >	box2
	declare type of 2d boxes

typedef cgv::media::axis_aligned_box< float, 3 >	box3
	declare type of 3d boxes

typedef cgv::media::axis_aligned_box< float, 4 >	box4
	declare type of 4d boxes

typedef cgv::media::axis_aligned_box< double, 2 >	dbox2
	declare type of 2d boxes

typedef cgv::media::axis_aligned_box< double, 3 >	dbox3
	declare type of 3d boxes

typedef cgv::media::axis_aligned_box< double, 4 >	dbox4
	declare type of 4d boxes

typedef cgv::math::quaternion< float >	quat
	declare type of quaternion

typedef cgv::math::quaternion< double >	dquat
	declare type of double quaternion

typedef cgv::math::fvec< int32_t, 2 >	ivec2
	declare type of 2d integer vectors

typedef cgv::math::fvec< int32_t, 3 >	ivec3
	declare type of 3d integer vectors

typedef cgv::math::fvec< int32_t, 4 >	ivec4
	declare type of 4d integer vectors

typedef cgv::math::fvec< uint32_t, 2 >	uvec2
	declare type of 2d unsigned integer vectors

typedef cgv::math::fvec< uint32_t, 3 >	uvec3
	declare type of 3d unsigned integer vectors

typedef cgv::math::fvec< uint32_t, 4 >	uvec4
	declare type of 4d unsigned integer vectors

Public Member Functions
	mesh_drawable ()
	construct from name which is necessary construction argument to node

void	init_frame (cgv::render::context &ctx)
	init textures if the mesh has been newly loaded More...

void	draw (cgv::render::context &ctx)
	default drawing implementation calls draw_mesh(ctx, true) to render opaque part

void	finish_draw (context &ctx)
	default finish drawing implementation calls draw_mesh(ctx, false) to render transparent part

virtual bool	read_mesh (const std::string &file_name)
	read mesh from the given file_name which is extended by model path if it does not exist

void	clear (context &ctx)
	clear all objects living in the context like textures or display lists

const box3 &	get_box () const
	return the axis aligned bounding box

void	hide ()
	hide the drawable

void	show ()
	show the drawable

bool	is_visible () const
	check whether the drawable is visible

context *	get_context () const
	access the current context. The context will be available latestly in the init method but not in the contructor.

void	set_context (context *_ctx)
	set the current focus context, this should only be called by the context itself

cgv::render::view *	find_view_as_node (size_t view_idx=0) const
	convenience function to find the view control in the current hierarchy More...

bool	get_world_location (int x, int y, const cgv::render::view &V, cgv::math::fvec< double, 3 > &world_location, double *window_z_ptr=0) const
	use given view together with depth buffer of context in order to compute the world location of the point at mouse pointer location (x,y) More...

void	post_redraw ()
	posts a redraw event to the current context if one is available

void	force_redraw ()
	forces a redraw right now. This cannot be called from init, init_frame, draw, finish_draw, finish_frame and clear

virtual bool	init (context &)
	this method is called after creation or recreation of the context, return whether all necessary functionality is supported

virtual void	resize (unsigned int w, unsigned int h)
	callback to announce resizing of the output window More...

virtual void	finish_frame (context &)
	this method is called in one pass over all drawables after drawing

virtual void	after_finish (cgv::render::context &)
	this method is called in one pass over all drawables after finish frame

int	get_policy () const
	return the policy without the stop on success flag

bool	stop_on_success () const
	return whether to stop on success

bool	stop_on_failure () const
	return whether to stop on failure

void	set_policy (int _policy)
	set a new policy, always add stop on success flag if needed

int	get_focused_child () const
	return the focused child or -1 if none is focused

void	set_focused_child (int _focused_child)
	set the focused child

bool	get_active () const
	return whether the current node is active

void	set_active (bool _active)
	set the active flag of the current node

Protected Member Functions
void	draw_mesh_primitive (cgv::render::context &ctx, unsigned pi, bool opaque, bool use_materials=true)
	draw all faces belonging to the given primitive, optionally turn off the specification of materials

void	draw_mesh (cgv::render::context &ctx, bool opaque, bool use_materials=true)
	draw the complete mesh, optionally turn off the specification of materials

void	center_view ()
	call this to center the view after loading the mesh. More...

Protected Attributes
std::string	model_path
	default path to file names

std::string	file_name
	currently loaded file name

box3	box
	the bounding box of the mesh is computed in the read_mesh method

Detailed Description

simple implementation of a drawable for a polygonal mesh with support for materials

Member Function Documentation

◆ center_view()

void cgv::render::gl::mesh_drawable::center_view ( )

protected

call this to center the view after loading the mesh.

For this to work you need to derive from at least cgv::base::node and register an instance through the object registration mechanism defined in cgv/base/register.h

◆ find_view_as_node()

cgv::render::view * cgv::render::drawable::find_view_as_node ( size_t view_idx = 0 ) const

inherited

convenience function to find the view control in the current hierarchy

this only works if your class inherits from the cgv::base::node class.

◆ get_world_location()

bool cgv::render::drawable::get_world_location	(	int	x,
		int	y,
		const cgv::render::view &	V,
		cgv::math::fvec< double, 3 > &	world_location,
		double *	window_z_ptr = `0`
	)		const

inherited

use given view together with depth buffer of context in order to compute the world location of the point at mouse pointer location (x,y)

returns true if a world location could be computed which is the case when the context pointer of the drawable has been set and when the mouse location points inside a valid view panel.

◆ init_frame()

void cgv::render::gl::mesh_drawable::init_frame ( cgv::render::context & ctx )

virtual

init textures if the mesh has been newly loaded

init textures

Reimplemented from cgv::render::drawable.

◆ resize()

void cgv::render::drawable::resize	(	unsigned int	w,
		unsigned int	h
	)

virtualinherited

callback to announce resizing of the output window

callback to anounce resizing of the output window

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

D:/develop/projects/git/cgv/libs/cgv_gl/gl/mesh_drawable.h
D:/develop/projects/git/cgv/libs/cgv_gl/gl/mesh_drawable.cxx

Public Types

Public Member Functions

Protected Member Functions