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Functions
graphene_sphere_t *  graphene_sphere_alloc () 
void  graphene_sphere_free () 
graphene_sphere_t *  graphene_sphere_init () 
graphene_sphere_t *  graphene_sphere_init_from_points () 
graphene_sphere_t *  graphene_sphere_init_from_vectors () 
void  graphene_sphere_get_center () 
float  graphene_sphere_get_radius () 
void  graphene_sphere_get_bounding_box () 
bool  graphene_sphere_is_empty () 
float  graphene_sphere_distance () 
bool  graphene_sphere_contains_point () 
void  graphene_sphere_translate () 
bool  graphene_sphere_equal () 
Functions
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]
Returns
the newly allocated graphene_sphere_t. Use
graphene_sphere_free()
to free the resources allocated by this function.
[transfer full]
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
.
Parameters
s 
the graphene_sphere_t to initialize 

center 
the coordinates of the center of the sphere, or 
[nullable] 
radius 
the radius of the sphere 
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
.
Parameters
s 
the graphene_sphere_t to initialize 

n_points 
the number of graphene_point3d_t in the 

points 
an array of graphene_point3d_t. 
[array length=n_points] 
center 
the center of the sphere. 
[nullable] 
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
.
Parameters
s 
the graphene_sphere_t to initialize 

n_vectors 
the number of graphene_vec3_t in the 

vectors 
an array of graphene_vec3_t. 
[array length=n_vectors] 
center 
the center of the sphere. 
[nullable] 
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.
Parameters
s 

point 
the coordinates of the translation 

res 
return location for the translated sphere. 
[out callerallocates] 
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
Types and Values
graphene_sphere_t
typedef struct { } graphene_sphere_t;
A sphere, represented by its center and radius.
Since: 1.2