public void TryDeleteSubdivision(OctreeItem item)
{
if (!ReferenceEquals(this, Root) && !DeleteItems())
{
foreach (var child in parent.Childs)
{
child.RemoveNode(parent.Childs.Where(i => !ReferenceEquals(i, this)).ToArray());
}
parent.EraseChildNodes();
}
else
{
items.Remove(item);
item.nodes.Remove(this);
}
}
