trackball.C File Reference

#include <math.h>
#include "trackball.h"

Go to the source code of this file.

Defines
#define	TRACKBALLSIZE   (0.8)
#define	RENORMCOUNT   97
Functions
static float	tb_project_to_sphere (float, float, float)
static void	normalize_quat (float[4])
void	vzero (float *v)
void	vset (float *v, float x, float y, float z)
void	vsub (const float *src1, const float *src2, float *dst)
void	vcopy (const float *v1, float *v2)
void	vcross (const float *v1, const float *v2, float *cross)
float	vlength (const float *v)
void	vscale (float *v, float div)
void	vnormal (float *v)
float	vdot (const float *v1, const float *v2)
void	vadd (const float *src1, const float *src2, float *dst)
void	trackball (float q[4], float p1x, float p1y, float p2x, float p2y)
void	axis_to_quat (float a[3], float phi, float q[4])
void	add_quats (float q1[4], float q2[4], float dest[4])
void	build_rotmatrix (float m[4][4], float q[4])

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Define Documentation

#define RENORMCOUNT   97

Definition at line 244 of file trackball.C. Referenced by add_quats().

#define TRACKBALLSIZE   (0.8)

Definition at line 62 of file trackball.C. Referenced by trackball().

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Function Documentation

void add_quats (  float  q1[4], float  q2[4], float  dest[4] )

Definition at line 247 of file trackball.C. References normalize_quat(), RENORMCOUNT, vadd(), vcopy(), vcross(), vdot(), and vscale().

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

Definition at line 206 of file trackball.C. Referenced by trackball().

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

Definition at line 302 of file trackball.C.

static void normalize_quat (  float  [4]  )  [static]

Definition at line 288 of file trackball.C. Referenced by add_quats().

static float tb_project_to_sphere (  float  , float  , float  )  [static]

Definition at line 219 of file trackball.C. References sqrt(). Referenced by trackball().

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

Definition at line 160 of file trackball.C.

void vadd (  const float *  src1, const float *  src2, float *  dst )

Definition at line 140 of file trackball.C. Referenced by add_quats().

void vcopy (  const float *  v1, float *  v2 )

Definition at line 95 of file trackball.C. Referenced by add_quats(), axis_to_quat(), and vcross().

void vcross (  const float *  v1, const float *  v2, float *  cross )

Definition at line 103 of file trackball.C. References vcopy(). Referenced by add_quats(), and trackball().

float vdot (  const float *  v1, const float *  v2 )

Definition at line 134 of file trackball.C. Referenced by add_quats().

float vlength (  const float *  v  )

Definition at line 114 of file trackball.C. References sqrt(). Referenced by trackball(), and vnormal().

void vnormal (  float *  v  )

Definition at line 128 of file trackball.C. References vlength(), and vscale(). Referenced by axis_to_quat().

void vscale (  float *  v, float  div )

Definition at line 120 of file trackball.C. Referenced by add_quats(), axis_to_quat(), and vnormal().

void vset (  float *  v, float  x, float  y, float  z )

Definition at line 79 of file trackball.C. Referenced by trackball().

void vsub (  const float *  src1, const float *  src2, float *  dst )

Definition at line 87 of file trackball.C. Referenced by trackball().

void vzero (  float *  v  )

Definition at line 71 of file trackball.C. Referenced by trackball().

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