trackball.h File Reference

Go to the source code of this file.

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

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Function Documentation

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

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

Definition at line 206 of file trackball.C. References cos(), sin(), vcopy(), vnormal(), and vscale().

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

Definition at line 302 of file trackball.C.

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

Definition at line 160 of file trackball.C. References axis_to_quat(), tb_project_to_sphere(), TRACKBALLSIZE, vcross(), vlength(), vset(), vsub(), and vzero().

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