1 // Copyright (C) 2007-2008 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.
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
22 // SMESH SMESH_OctreeNode : Octree with Nodes set
23 // inherites global class SMESH_Octree
24 // File : SMESH_OctreeNode.hxx
25 // Created : Tue Jan 16 16:00:00 2007
26 // Author : Nicolas Geimer & Aurélien Motteux (OCC)
29 #ifndef _SMESH_OCTREENODE_HXX_
30 #define _SMESH_OCTREENODE_HXX_
32 #include "SMESH_Octree.hxx"
37 #include "SMDS_ElemIterator.hxx"
41 class SMESH_OctreeNode;
43 typedef SMDS_Iterator<SMESH_OctreeNode*> SMESH_OctreeNodeIterator;
44 typedef boost::shared_ptr<SMESH_OctreeNodeIterator> SMESH_OctreeNodeIteratorPtr;
46 class SMESH_OctreeNode : public SMESH_Octree{
51 SMESH_OctreeNode (const std::set<const SMDS_MeshNode*>& theNodes, const int maxLevel = -1,
52 const int maxNbNodes = 5 , const double minBoxSize = 0.);
54 //=============================
56 * \brief Empty destructor
58 //=============================
59 virtual ~SMESH_OctreeNode () {};
61 // Tells us if SMESH_OctreeNode is a leaf or not (-1 = not initialiazed)
62 virtual const bool isLeaf();
64 // Tells us if Node is inside the current box with the precision "precision"
65 virtual const bool isInside(const SMDS_MeshNode * Node, const double precision = 0. );
67 // Return in Result a list of Nodes potentials to be near Node
68 void NodesAround( const SMDS_MeshNode * Node , std::list<const SMDS_MeshNode*>* Result,
69 const double precision = 0. );
71 // Return in theGroupsOfNodes a list of group of nodes close to each other within theTolerance
72 // Search for all the nodes in nodes
73 void FindCoincidentNodes ( std::set<const SMDS_MeshNode*>* nodes,
74 const double theTolerance,
75 std::list< std::list< const SMDS_MeshNode*> >* theGroupsOfNodes);
77 // Static method that return in theGroupsOfNodes a list of group of nodes close to each other within
78 // theTolerance search for all the nodes in nodes
79 static void FindCoincidentNodes ( std::set<const SMDS_MeshNode*> nodes,
80 std::list< std::list< const SMDS_MeshNode*> >* theGroupsOfNodes,
81 const double theTolerance = 0.00001, const int maxLevel = -1,
82 const int maxNbNodes = 5);
84 * \brief Return iterator over children
86 SMESH_OctreeNodeIteratorPtr GetChildrenIterator();
88 * \brief Return nodes iterator
90 SMDS_NodeIteratorPtr GetNodeIterator();
92 * \brief Return nb nodes in a tree
94 int NbNodes() const { return myNbNodes; }
98 //=============================
100 * \brief Empty constructor
102 //=============================
103 SMESH_OctreeNode (){};
105 // Shares the father's data with each of his child
106 virtual void buildChildrenData();
108 // Compute the bounding box of the whole set of nodes myNodes (only used for OctreeNode level 0)
109 void computeBoxForFather();
111 // Construct an empty SMESH_OctreeNode used by SMESH_Octree::buildChildren()
112 virtual SMESH_Octree* allocateOctreeChild();
114 // Return in result a list of nodes closed to Node and remove it from SetOfNodes
115 void FindCoincidentNodes( const SMDS_MeshNode * Node,
116 std::set<const SMDS_MeshNode*>* SetOfNodes,
117 std::list<const SMDS_MeshNode*>* Result,
118 const double precision);
120 // The max number of nodes a leaf box can contain
123 // The set of nodes inside the box of the Octree (Empty if Octree is not a leaf)
124 std::set<const SMDS_MeshNode*> myNodes;
126 // The number of nodes I have inside the box