SYNOPSIS
#include <agar/core.h> #include <agar/gui.h> #include <agar/math/m.h>
DESCRIPTION
The
M_Sphere structure describes a sphere in terms of an origin point
p and a radius
r:
typedef struct m_sphere {
M_Vector3 p;
M_Real r;
} M_Sphere;
INITIALIZATION ↑
M_Sphere M_SphereFromPt (M_Vector p, M_Real r)
M_Sphere M_SphereRead (AG_DataSource *ds)
void M_SphereWrite (AG_DataSource *ds, M_Sphere *S)
M_Sphere M_SPHERE_INITIALIZER (M_Real x, M_Real y, M_Real z, M_Real r)
The M_SphereFromPt() function returns a M_Sphere describing a sphere of radius r centered at point p.
The M_SphereRead() and M_SphereWrite() functions read or write a sphere structure from/to an AG_DataSource(3).
The M_SPHERE_INITIALIZER() macro expands to a static initializer for M_Sphere.
COMPUTATIONS ↑
M_Real M_SpherePointDistance (M_Sphere S, M_Vector3 p)
M_Real M_SphereSurfaceArea (M_Sphere S)
M_Real M_SphereVolume (M_Sphere S)
The M_SpherePointDistance() routine computes the minimal distance between a sphere S and a point p.
M_SphereSurfaceArea() returns the surface area of the sphere. M_SphereVolume() returns the volume of the interior of the sphere.
SEE ALSO ↑
AG_DataSource(3), AG_Intro(3), M_Circle(3), M_Geometry(3), M_Plane(3), M_Polygon(3), M_Rectangle(3), M_Sphere(3), M_Triangle(3), M_Vector(3)
HISTORY ↑
The
M_Sphere structure first appeared in
Agar 1.3.4.
