C++ (Cpp) OctreeNode::get_disp示例

void
OctreeNode::set_neibors()
{
   OctreeNode* n;
   BBOX test_box = BBOX(min()-0.5*dim(), max()+0.5*dim());

   if ((!_leaf || _display) && _height != 1) {
      for (int i = 0; i < 8; i++) {
         n = _parent->get_children()[i];
         if (n != this && (!n->get_leaf() || n->get_disp())) {
            _neibors += n;
         }
      }

      _parent->neibors().num();

      for (int i = 0; i < _parent->neibors().num(); i++) {
         n = _parent->neibors()[i];
         if (!n->get_leaf()) {
            for (int j = 0; j < 8; j++) {
               if (n->get_children()[j]->overlaps(test_box) &&
                   (!n->get_children()[j]->get_leaf() || 
                    n->get_children()[j]->get_disp())) {
                  //XXX - crashing here...
                  _neibors += n->get_children()[j];
               }
            }
         }
      }
        
   }

   if (!_leaf) {
      for (int i = 0; i < 8; i++) {
         _children[i]->set_neibors();
      }
   }
}