#include <math.h>
#include "trackball.h"
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]) |
#define RENORMCOUNT 97 |
Referenced by add_quats().
#define TRACKBALLSIZE (0.8) |
Referenced by trackball().
void add_quats | ( | float | q1[4], | |
float | q2[4], | |||
float | dest[4] | |||
) |
References normalize_quat(), RENORMCOUNT, vadd(), vcopy(), vcross(), vdot(), and vscale().
void axis_to_quat | ( | float | a[3], | |
float | phi, | |||
float | q[4] | |||
) |
void build_rotmatrix | ( | float | m[4][4], | |
float | q[4] | |||
) |
static void normalize_quat | ( | float | q[4] | ) | [static] |
Referenced by add_quats().
static float tb_project_to_sphere | ( | float | r, | |
float | x, | |||
float | y | |||
) | [static] |
Referenced by trackball().
void trackball | ( | float | q[4], | |
float | p1x, | |||
float | p1y, | |||
float | p2x, | |||
float | p2y | |||
) |
References axis_to_quat(), tb_project_to_sphere(), TRACKBALLSIZE, vcross(), vlength(), vset(), vsub(), and vzero().
void vadd | ( | const float * | src1, | |
const float * | src2, | |||
float * | dst | |||
) |
Referenced by add_quats().
void vcopy | ( | const float * | v1, | |
float * | v2 | |||
) |
Referenced by add_quats(), axis_to_quat(), and vcross().
void vcross | ( | const float * | v1, | |
const float * | v2, | |||
float * | cross | |||
) |
float vdot | ( | const float * | v1, | |
const float * | v2 | |||
) |
Referenced by add_quats().
float vlength | ( | const float * | v | ) |
Referenced by trackball(), and vnormal().
void vnormal | ( | float * | v | ) |
void vscale | ( | float * | v, | |
float | div | |||
) |
Referenced by add_quats(), axis_to_quat(), and vnormal().
void vset | ( | float * | v, | |
float | x, | |||
float | y, | |||
float | z | |||
) |
Referenced by trackball().
void vsub | ( | const float * | src1, | |
const float * | src2, | |||
float * | dst | |||
) |
Referenced by trackball().
void vzero | ( | float * | v | ) |
Referenced by trackball().