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SPHERE.H
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C/C++ Source or Header
|
1993-01-12
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843b
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28 lines
/*
SPHERE.H Interface to sphere logic
*/
typedef struct { double a, b, c, d; } SPHERE;
#ifndef _SPHERE_
extern SPHERE *create_sphere(double r);
extern SPHERE *copy_sphere(SPHERE *sphere);
extern void destroy_sphere(SPHERE *sphere);
extern void trans_x_sphere(SPHERE *sphere, double t);
extern void trans_y_sphere(SPHERE *sphere, double t);
extern void trans_z_sphere(SPHERE *sphere, double t);
extern void scale_sphere(SPHERE *sphere, double factor);
extern void rot_x_sphere(SPHERE *sphere, double angle);
extern void rot_y_sphere(SPHERE *sphere, double angle);
extern void rot_z_sphere(SPHERE *sphere, double angle);
extern int isects_reqd_sphere(SPHERE *sphere);
extern void intersect_sphere(SPHERE *sphere, VECTOR p, VECTOR q, SIL *sil);
extern VECTOR normal_to_sphere(SPHERE *sphere, VECTOR p);
#endif