trackball.h File Reference

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Functions
void	trackball (double q[4], double p1x, double p1y, double p2x, double p2y)
void	add_quats (double *q1, double *q2, double *dest)
void	build_rotmatrix (float m[4][4], double q[4])
void	axis_to_quat (double a[3], double phi, double q[4])

Function Documentation

add_quats()

void add_quats	(	double *	q1,
		double *	q2,
		double *	dest
	)

axis_to_quat()

void axis_to_quat	(	double	a[3],
		double	phi,
		double	q[4]
	)

Definition at line 205 of file trackball.cpp.

References vcopy(), vnormal(), and vscale().

Referenced by trackball().

build_rotmatrix()

void build_rotmatrix	(	float	m[4][4],
		double	q[4]
	)

Definition at line 306 of file trackball.cpp.

Referenced by TRACK_BALL::Drag(), and TRACK_BALL::Interpolate().

trackball()

void trackball	(	double	q[4],
		double	p1x,
		double	p1y,
		double	p2x,
		double	p2y
	)

Definition at line 155 of file trackball.cpp.

References axis_to_quat(), tb_project_to_sphere(), TRACKBALLSIZE, vcross(), vlength(), vset(), vsub(), and vzero().

Referenced by TRACK_BALL::Drag(), TRACK_BALL::initQuat(), and TRACK_BALL::Reset_T1().