GLGraphics::GLViewController Class Reference

#include <GLViewController.h>

List of all members.

Public Member Functions
	GLViewController (int _WINX, int _WINY, const CGLA::Vec3f &_centre, float _rad)
void	grab_ball (TrackBallAction action, const CGLA::Vec2i &pos)
	Grab ball takes an action and a mouse position.
void	roll_ball (const CGLA::Vec2i &pos)
	Roll virtual trackball (pass just mouse position).
void	release_ball ()
	Release the virtual trackball.
bool	try_spin ()
	Try to spind the trackball - called from idle.
void	set_gl_modelview ()
	Setup GL modelview matrix.
void	reset_projection ()
	Reset projection. Called initially, when window size has changed or when user zooms.
void	reshape (int W, int H)
	Reshape window.
void	set_near_and_far ()
	Set near and far planes.
void	set_centre (const CGLA::Vec3f &c)
	Set centre of ball.
void	set_rotation (const CGLA::Quatf &qrot)
void	set_eye_dist (float rad)
	Set eye distance.
float	get_eye_dist () const
	Returns eye distance.
void	get_view_param (CGLA::Vec3f &e, CGLA::Vec3f &c, CGLA::Vec3f &u) const
	Get viewing parameters: eye, centre, up.
bool	load (std::ifstream &)
	Load trackball from stream.
bool	save (std::ofstream &) const
	Save trackball to stream.

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Detailed Description

The GLViewController is a more high level component than a trackball. The idea behind GLViewController is to handle setting up the projection and changing the viewport when the window is reshaped. Basically the raw mouse position and related info is sent to the view controller which takes care of the rest.

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Constructor & Destructor Documentation

GLGraphics::GLViewController::GLViewController	(	int	_WINX,
		int	_WINY,
		const CGLA::Vec3f &	_centre,
		float	_rad
	)

Constructor which accepts the window dimensions as well as the world center and the radius which should be construed as the distance to the observer

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

• /Users/jab/Documents/Teaching/02585/GEL2_and_demos/GEL/src/GLGraphics/GLViewController.h
• /Users/jab/Documents/Teaching/02585/GEL2_and_demos/GEL/src/GLGraphics/GLViewController.cpp