1 // Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // HYDRO HYDROData_Octree : Octree implementation (from SMESH module)
24 // File : HYDROData_Octree.hxx
25 // Created : Tue Jan 16 16:00:00 2007
26 // Author : Nicolas Geimer & Aurélien Motteux (OCC)
29 #ifndef _HYDROData_OCTREE_HXX_
30 #define _HYDROData_OCTREE_HXX_
32 #include <Standard.hxx>
33 #include <Standard_Macro.hxx>
35 #include "HYDROData_Tree.hxx"
36 #include <Bnd_B3d.hxx>
38 //================================================================================
41 * \brief 3D tree of anything.
42 * Methods to implement in a descendant are:
43 * - Bnd_B3d* buildRootBox(); // box of the whole tree
44 * - descendant* newChild() const; // a new child instance
45 * - void buildChildrenData(); // Fill in data of the children
47 class Standard_EXPORT HYDROData_Octree: public HYDROData_Tree<Bnd_B3d, 8>
50 typedef HYDROData_Tree<Bnd_B3d, 8> TBaseTree;
52 //! Constructor. limit must be provided at tree root construction.
53 //! limit will be deleted by HYDROData_Octree
54 HYDROData_Octree(HYDROData_TreeLimit* limit = 0);
55 virtual ~HYDROData_Octree() {};
57 //! Compute the biggest dimension of my box
58 double maxSize() const;
60 //! Return index of a child the given point is in
61 inline static int getChildIndex(double x, double y, double z, const gp_XYZ& boxMiddle)
63 return (x > boxMiddle.X()) + (y > boxMiddle.Y()) * 2 + (z > boxMiddle.Z()) * 4;
68 //! Allocate a bndbox according to childIndex. childIndex is zero based
69 virtual Bnd_B3d* newChildBox(int childIndex) const;