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
25 // File : SMESH_OctreeNode.hxx
26 // Created : Tue Jan 16 16:00:00 2007
27 // Author : Nicolas Geimer & Aurélien Motteux (OCC)
30 #ifndef _SMESH_OCTREENODE_HXX_
31 #define _SMESH_OCTREENODE_HXX_
33 #include "SMESH_Octree.hxx"
39 #include "SMDS_ElemIterator.hxx"
43 class SMESH_OctreeNode;
45 typedef SMDS_Iterator<SMESH_OctreeNode*> SMESH_OctreeNodeIterator;
46 typedef boost::shared_ptr<SMESH_OctreeNodeIterator> SMESH_OctreeNodeIteratorPtr;
48 class SMESH_OctreeNode : public SMESH_Octree {
53 SMESH_OctreeNode (const std::set<const SMDS_MeshNode*>& theNodes, const int maxLevel = 8,
54 const int maxNbNodes = 5, const double minBoxSize = 0.);
56 //=============================
58 * \brief Empty destructor
60 //=============================
61 virtual ~SMESH_OctreeNode () {};
63 // Tells us if Node is inside the current box with the precision "precision"
64 virtual const bool isInside(const SMDS_MeshNode * Node, const double precision = 0.);
66 // Return in Result a list of Nodes potentials to be near Node
67 void NodesAround(const SMDS_MeshNode * Node,
68 std::list<const SMDS_MeshNode*>* Result,
69 const double precision = 0.);
71 // Return in dist2Nodes nodes mapped to their square distance from Node
72 bool NodesAround(const SMDS_MeshNode * Node,
73 std::map<double, const SMDS_MeshNode*>& dist2Nodes,
76 // Return in theGroupsOfNodes a list of group of nodes close to each other within theTolerance
77 // Search for all the nodes in nodes
78 void FindCoincidentNodes ( std::set<const SMDS_MeshNode*>* nodes,
79 const double theTolerance,
80 std::list< std::list< const SMDS_MeshNode*> >* theGroupsOfNodes);
82 // Static method that return in theGroupsOfNodes a list of group of nodes close to each other within
83 // theTolerance search for all the nodes in nodes
84 static void FindCoincidentNodes ( std::set<const SMDS_MeshNode*>& nodes,
85 std::list< std::list< const SMDS_MeshNode*> >* theGroupsOfNodes,
86 const double theTolerance = 0.00001,
87 const int maxLevel = -1,
88 const int maxNbNodes = 5);
90 * \brief Update data according to node movement
92 void UpdateByMoveNode( const SMDS_MeshNode* node, const gp_Pnt& toPnt );
94 * \brief Return iterator over children
96 SMESH_OctreeNodeIteratorPtr GetChildrenIterator();
98 * \brief Return nodes iterator
100 SMDS_NodeIteratorPtr GetNodeIterator();
102 * \brief Return nb nodes in a tree
104 int NbNodes() const { return myNodes.size(); }
108 SMESH_OctreeNode (int maxNbNodes );
110 // Compute the bounding box of the whole set of nodes myNodes
111 virtual Bnd_B3d* buildRootBox();
113 // Shares the father's data with each of his child
114 virtual void buildChildrenData();
116 // Construct an empty SMESH_OctreeNode used by SMESH_Octree::buildChildren()
117 virtual SMESH_Octree* allocateOctreeChild() const;
119 // Return in result a list of nodes closed to Node and remove it from SetOfNodes
120 void FindCoincidentNodes( const SMDS_MeshNode * Node,
121 std::set<const SMDS_MeshNode*>* SetOfNodes,
122 std::list<const SMDS_MeshNode*>* Result,
123 const double precision);
125 // The max number of nodes a leaf box can contain
128 // The set of nodes inside the box of the Octree (Empty if Octree is not a leaf)
129 std::set<const SMDS_MeshNode*> myNodes;