tools::sg::perspective Class Reference

Inheritance diagram for tools::sg::perspective:

Collaboration diagram for tools::sg::perspective:

Public Member Functions
virtual float	near_height () const
virtual void	zoom (float a_fac)
virtual camera_type	type () const
virtual const desc_fields &	node_desc_fields () const
	perspective ()
virtual	~perspective ()
	perspective (const perspective &a_from)
perspective &	operator= (const perspective &a_from)
bool	operator== (const perspective &a_from) const
bool	operator!= (const perspective &a_from) const
void	dump (std::ostream &a_out)
Public Member Functions inherited from tools::sg::base_camera
virtual void	render (render_action &a_action)
virtual void	pick (pick_action &a_action)
virtual void	event (event_action &a_action)
virtual void	get_matrix (get_matrix_action &a_action)
virtual void	is_visible (visible_action &a_action)
virtual	~base_camera ()
void	direction (vec3f &a_dir) const
void	rotate_around_direction (float a_delta)
void	rotate_around_z (float a_delta)
void	rotate_around_up (float a_delta)
void	rotate_around_x (float a_delta)
void	rotate_around_x_at_focal (float a_delta)
void	rotate_around_y_at_focal (float a_delta)
void	rotate_around_z_at_focal (float a_delta)
void	rotate_to_dir (const vec3f &a_dir)
void	pane_to (float a_x, float a_y, float a_z)
void	translate_along_side (float a_delta)
void	translate_along_up (float a_delta)
void	translate_along_dir (float a_delta)
bool	look_at (const vec3f &a_dir, const vec3f &a_up)
void	dump (std::ostream &a_out)
bool	is_type_ortho () const
bool	height_at_focal (float &a_h) const
void	astro_orientation (float a_ra, float a_dec)
bool	update_motion (int a_move)
Public Member Functions inherited from tools::sg::node
virtual void *	cast (const std::string &a_class) const
virtual const std::string &	s_cls () const =0
virtual node *	copy () const =0
virtual unsigned int	cls_version () const
virtual void	bbox (bbox_action &)
virtual void	search (search_action &a_action)
virtual bool	write (write_action &a_action)
virtual bool	read (read_action &a_action)
virtual void	protocol_one_fields (std::vector< field * > &a_fields) const
virtual bool	draw_in_frame_buffer () const
virtual bool	touched ()
virtual void	reset_touched ()
	node ()
virtual	~node ()
void	touch ()
field &	field_from_desc (const field_desc &a_desc) const
void	dump_field_descs (std::ostream &a_out) const
field *	find_field_by_name (const std::string &a_name) const

Public Attributes
sf< float >	height_angle
Public Attributes inherited from tools::sg::base_camera
sf< float >	znear
sf< float >	zfar
sf_vec3f	position
sf_rotf	orientation
sf< float >	dx
sf< float >	da
sf< float >	ds
sf< float >	focal

Protected Member Functions
virtual void	get_lrbt (unsigned int a_ww, unsigned int a_wh, float &a_l, float &a_r, float &a_b, float &a_t)
Protected Member Functions inherited from tools::sg::base_camera
	base_camera ()
	base_camera (const base_camera &a_from)
base_camera &	operator= (const base_camera &a_from)
bool	operator== (const base_camera &a_from) const
void	update_sg (std::ostream &a_out)
void	_mult_matrix (matrix_action &a_action)
void	set_state (matrix_action &a_action)
Protected Member Functions inherited from tools::sg::node
	node (const node &)
node &	operator= (const node &)
void	add_field (field *a_field)
bool	write_fields (write_action &a_action)
bool	read_fields (read_action &a_action)
field_desc::offset_t	field_offset (const field *a_field) const
field *	find_field (const field_desc &a_rdesc) const
void	check_fields (std::ostream &a_out) const

Additional Inherited Members
Static Protected Member Functions inherited from tools::sg::base_camera
static const vec4< float > &	id_orientation ()
Protected Attributes inherited from tools::sg::base_camera
sf_vec4f	m_lrbt
mat4f	m_proj
float	m_tmp [16]

Detailed Description

Definition at line 14 of file perspective.

Constructor & Destructor Documentation

perspective() [1/2]

tools::sg::perspective::perspective ( )

inline

Definition at line 42 of file perspective.

  :parent()
  ,height_angle(fpi()/4.0f) //45 degrees.
  {
#ifdef TOOLS_MEM
    mem::increment(s_class().c_str());
#endif
    add_fields();
  }

~perspective()

virtual tools::sg::perspective::~perspective ( )

inlinevirtual

Definition at line 51 of file perspective.

                        {
#ifdef TOOLS_MEM
    mem::decrement(s_class().c_str());
#endif
  }

perspective() [2/2]

tools::sg::perspective::perspective ( const perspective &  a_from )

inline

Definition at line 57 of file perspective.

  :parent(a_from)
  ,height_angle(a_from.height_angle)
  {
#ifdef TOOLS_MEM
    mem::increment(s_class().c_str());
#endif
    add_fields();
  }

Member Function Documentation

dump()

void tools::sg::perspective::dump ( std::ostream &  a_out )

inline

Definition at line 81 of file perspective.

                               {
    parent::dump(a_out);
    a_out << " height_angle " << height_angle.value() << std::endl;
  }

get_lrbt()

virtual void tools::sg::perspective::get_lrbt ( unsigned int  a_ww, unsigned int  a_wh, float &  a_l, float &  a_r, float &  a_b, float &  a_t  )

inlineprotectedvirtual

Implements tools::sg::base_camera.

Definition at line 87 of file perspective.

                                                                     {
    float aspect = float(a_ww)/float(a_wh);
    float hh = near_height()*0.5f;
    a_l = -aspect*hh;
    a_r = aspect*hh;
    a_b = -hh;
    a_t = hh;
  }

near_height()

virtual float tools::sg::perspective::near_height ( ) const

inlinevirtual

Implements tools::sg::base_camera.

Definition at line 17 of file perspective.

                                    {
    return 2.0f*znear.value()*ftan(height_angle.value()*0.5f);
  }

node_desc_fields()

virtual const desc_fields& tools::sg::perspective::node_desc_fields ( ) const

inlinevirtual

Reimplemented from tools::sg::base_camera.

Definition at line 30 of file perspective.

                                                      {
    TOOLS_FIELD_DESC_NODE_CLASS(tools::sg::perspective)
    static const desc_fields s_v(parent::node_desc_fields(),1, //WARNING : take care of count.
      TOOLS_ARG_FIELD_DESC(height_angle)
    );
    return s_v;
  }

operator!=()

bool tools::sg::perspective::operator!= ( const perspective &  a_from ) const

inline

Definition at line 77 of file perspective.

                                                   {
    return !operator==(a_from);
  }

operator=()

perspective& tools::sg::perspective::operator= ( const perspective &  a_from )

inline

Definition at line 66 of file perspective.

                                                   {
    parent::operator=(a_from);
    height_angle = a_from.height_angle;
    return *this;
  }

operator==()

bool tools::sg::perspective::operator== ( const perspective &  a_from ) const

inline

Definition at line 72 of file perspective.

                                                  {
    if(!parent::operator==(a_from)) return false;
    if(height_angle!=a_from.height_angle) return false;
    return true;
  }

type()

virtual camera_type tools::sg::perspective::type ( ) const

inlinevirtual

Implements tools::sg::base_camera.

Definition at line 26 of file perspective.

{return camera_perspective;}

zoom()

virtual void tools::sg::perspective::zoom ( float  a_fac )

inlinevirtual

Implements tools::sg::base_camera.

Definition at line 20 of file perspective.

                                 {
    //for exa :
    //  a_fac = 0.99f is a zoom in
    //  a_fac = 1.01f is a zoom out
    height_angle.value(height_angle.value()*a_fac);
  }

Member Data Documentation

height_angle

sf<float> tools::sg::perspective::height_angle

Definition at line 28 of file perspective.

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

• /Users/barrand/private/dev/softinex/g4tools/g4tools/tools/sg/perspective