graphene_sphere_alloc ()

graphene_sphere_t *
graphene_sphere_alloc (void);

Allocates a new graphene_sphere_t.

The contents of the newly allocated structure are undefined.

[constructor]

Since: 1.2

graphene_sphere_free ()

void
graphene_sphere_free (graphene_sphere_t *s);

Frees the resources allocated by graphene_sphere_alloc().

Since: 1.2

graphene_sphere_init ()

graphene_sphere_t *
graphene_sphere_init (graphene_sphere_t *s,
                      const graphene_point3d_t *center,
                      float radius);

Initializes the given graphene_sphere_t with the given center and radius .

Since: 1.2

graphene_sphere_init_from_points ()

graphene_sphere_t *
graphene_sphere_init_from_points (graphene_sphere_t *s,
                                  unsigned int n_points,
                                  const graphene_point3d_t *points,
                                  const graphene_point3d_t *center);

Initializes the given graphene_sphere_t using the given array of 3D coordinates so that the sphere includes them.

The center of the sphere can either be specified, or will be center of the 3D volume that encompasses all points .

Since: 1.2

graphene_sphere_init_from_vectors ()

graphene_sphere_t *
graphene_sphere_init_from_vectors (graphene_sphere_t *s,
                                   unsigned int n_vectors,
                                   const graphene_vec3_t *vectors,
                                   const graphene_point3d_t *center);

Initializes the given graphene_sphere_t using the given array of 3D coordinates so that the sphere includes them.

The center of the sphere can either be specified, or will be center of the 3D volume that encompasses all vectors .

Since: 1.2

graphene_sphere_get_center ()

void
graphene_sphere_get_center (const graphene_sphere_t *s,
                            graphene_point3d_t *center);

Retrieves the coordinates of the center of a graphene_sphere_t.

Since: 1.2

graphene_sphere_get_radius ()

float
graphene_sphere_get_radius (const graphene_sphere_t *s);

Retrieves the radius of a graphene_sphere_t.

Since: 1.2

graphene_sphere_get_bounding_box ()

void
graphene_sphere_get_bounding_box (const graphene_sphere_t *s,
                                  graphene_box_t *box);

Computes the bounding box capable of containing the given graphene_sphere_t.

Since: 1.2

graphene_sphere_is_empty ()

bool
graphene_sphere_is_empty (const graphene_sphere_t *s);

Checks whether the sphere has a zero radius.

Since: 1.2

graphene_sphere_distance ()

float
graphene_sphere_distance (const graphene_sphere_t *s,
                          const graphene_point3d_t *point);

Computes the distance of the given point from the surface of a graphene_sphere_t.

Since: 1.2

graphene_sphere_contains_point ()

bool
graphene_sphere_contains_point (const graphene_sphere_t *s,
                                const graphene_point3d_t *point);

Checks whether the given point is contained in the volume of a graphene_sphere_t.

Since: 1.2

graphene_sphere_translate ()

void
graphene_sphere_translate (const graphene_sphere_t *s,
                           const graphene_point3d_t *point,
                           graphene_sphere_t *res);

Translates the center of the given graphene_sphere_t using the point coordinates as the delta of the translation.

Since: 1.2

graphene_sphere_equal ()

bool
graphene_sphere_equal (const graphene_sphere_t *a,
                       const graphene_sphere_t *b);

Checks whether two graphene_sphere_t are equal.

Since: 1.2

graphene_sphere_t

typedef struct {
} graphene_sphere_t;

A sphere, represented by its center and radius.

Since: 1.2