C++ (Cpp) Sphere3Ds::empty 예제들

예제 #1

파일: Sphere3D.cpp 프로젝트: j-ma-bu-l-l-ock/imp

IMPALGEBRA_BEGIN_NAMESPACE

Sphere3D get_enclosing_sphere(const Sphere3Ds &ss) {
  IMP_USAGE_CHECK(!ss.empty(),
                  "Must pass some spheres to have a bounding sphere");
#ifdef IMP_ALGEBRA_USE_IMP_CGAL
  return cgal::internal::get_enclosing_sphere(ss);
#else
  BoundingBox3D bb = get_bounding_box(ss[0]);
  for (unsigned int i = 1; i < ss.size(); ++i) {
    bb += get_bounding_box(ss[i]);
  }
  Vector3D c = .5 * (bb.get_corner(0) + bb.get_corner(1));
  double r = 0;
  for (unsigned int i = 0; i < ss.size(); ++i) {
    double d = (c - ss[i].get_center()).get_magnitude();
    d += ss[i].get_radius();
    r = std::max(r, d);
  }
  return Sphere3D(c, r);
#endif
}