message: Put edge sphere in cache
diff: @@ -99,6 +99,10 @@ class Cech_blocker {
  #endif // DEBUG_TRACES
  }
  sph = get_sphere(face_points.cbegin(), face_points.cend());
  + // Put edge sphere in cache
  + sc_ptr_->assign_key(face, cc_ptr_->get_cache().size());
  + cc_ptr_->get_cache().push_back(sph);
  + // Clear face_points
  face_points.clear();
  }
  // Check if the minimal enclosing ball of current face contains the extra point
  