Basis3 basis = Basis3.fromW(this.plane.normal(), Basis3.Orientation.RIGHT_HANDED);
Vector3 u = basis.u();
Vector3 v = basis.v();
double r = this.boundingSphere.radius();
double ri = r * Math.hypot(u.x(), v.x());
double rj = r * Math.hypot(u.y(), v.y());
double rk = r * Math.hypot(u.z(), v.z());
Point3 c = this.boundingSphere.center();