0028368: TKMath, BVH -- Fix invalid tree height in QBVH

[occt.git] / src / BVH / BVH_QuadTree.lxx

// Created on: 2016-06-20
// Created by: Denis BOGOLEPOV
// Copyright (c) 2016 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

// =======================================================================
// function : Child
// purpose  : Returns index of the K-th child of the given inner node
// =======================================================================
template<class T, int N> template<int K>
int BVH_Tree<T, N, BVH_QuadTree>::Child (const int theNodeIndex) const
{
  return BVH::Array<int, 4>::Value (this->myNodeInfoBuffer, theNodeIndex).y() + K;
}