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 // SMESH_Quadtree : Quartree implementation
24 // File : SMESH_Quadtree.cxx
27 #include "SMESH_Quadtree.hxx"
29 //===========================================================================
31 * Constructor. limit must be provided at tree root construction.
32 * limit will be deleted by SMESH_Quadtree.
34 //===========================================================================
36 SMESH_Quadtree::SMESH_Quadtree (SMESH_TreeLimit* limit): TBaseTree( limit )
40 //=================================================================
42 * \brief Allocate a bndbox according to childIndex. childIndex is zero based
44 //=================================================================
46 Bnd_B2d* SMESH_Quadtree::newChildBox(int childIndex) const
48 gp_XY min = getBox()->CornerMin();
49 gp_XY max = getBox()->CornerMax();
50 gp_XY HSize = (max - min)/2.;
51 gp_XY childHsize = HSize/2.;
53 gp_XY minChild( min.X() + childIndex%2 * HSize.X(),
54 min.Y() + ( childIndex<2 ) * HSize.Y());
56 return new Bnd_B2d(minChild+childHsize,childHsize);
59 //===========================================================================
61 * \brief Compute the bigger dimension of my box
63 //===========================================================================
65 double SMESH_Quadtree::maxSize() const
67 if ( getBox() && !getBox()->IsVoid() )
69 gp_XY min = getBox()->CornerMin();
70 gp_XY max = getBox()->CornerMax();
71 gp_XY Size = (max - min);
72 double returnVal = (Size.X()>Size.Y())?Size.X():Size.Y();