SPHERES Description of functions operating on 3D spheres.

   Spheres are represented by their center and their radius:
   S = [xc yc zc r];

   An ellipsoid is defined by:
   ELL = [XC YC ZC  A B C  PHI THETA PSI]
   where [XC YC ZY] is the center, [A B C] are length of semi-axes (in
   decreasing order), and [PHI THETA PSI] are euler angles representing
   the ellipsoid orientation.

   See also
   createSphere, equivalentEllipsoid
   intersectLineSphere, intersectPlaneSphere, sphericalVoronoiDomain
   drawSphere, drawEllipsoid, fillSphericalTriangle, fillSphericalPolygon
   drawSphericalEdge, drawSphericalTriangle, drawSphericalPolygon
   

Package: matgeom