SALOME - SMESH
SMESH_OctreeNode.hxx
Go to the documentation of this file.
1 // Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
2 //
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
5 //
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.
10 //
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.
15 //
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
19 //
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
21 //
22 // SMESH SMESH_OctreeNode : Octree with Nodes set
23 // inherites global class SMESH_Octree
24 //
25 // File : SMESH_OctreeNode.hxx
26 // Created : Tue Jan 16 16:00:00 2007
27 // Author : Nicolas Geimer & Aurélien Motteux (OCC)
28 // Module : SMESH
29 
30 #ifndef _SMESH_OCTREENODE_HXX_
31 #define _SMESH_OCTREENODE_HXX_
32 
33 #include "SMESH_Octree.hxx"
34 
35 #include <list>
36 #include <set>
37 #include <map>
38 
39 #include "SMDS_ElemIterator.hxx"
40 
41 //forward declaration
42 class SMDS_MeshNode;
44 
46 typedef boost::shared_ptr<SMESH_OctreeNodeIterator> SMESH_OctreeNodeIteratorPtr;
47 
49 
50 public:
51 
52  // Constructor
53  SMESH_OctreeNode (const std::set<const SMDS_MeshNode*>& theNodes, const int maxLevel = -1,
54  const int maxNbNodes = 5, const double minBoxSize = 0.);
55 
56 //=============================
60 //=============================
61  virtual ~SMESH_OctreeNode () {};
62 
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.);
65 
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.);
70 
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,
74  double precision);
75 
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);
81 
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);
92  void UpdateByMoveNode( const SMDS_MeshNode* node, const gp_Pnt& toPnt );
104  int NbNodes() const { return myNodes.size(); }
105 
106 protected:
107 
108  SMESH_OctreeNode (int maxNbNodes );
109 
110  // Compute the bounding box of the whole set of nodes myNodes
111  virtual Bnd_B3d* buildRootBox();
112 
113  // Shares the father's data with each of his child
114  virtual void buildChildrenData();
115 
116  // Construct an empty SMESH_OctreeNode used by SMESH_Octree::buildChildren()
117  virtual SMESH_Octree* allocateOctreeChild() const;
118 
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);
124 
125  // The max number of nodes a leaf box can contain
127 
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;
130 
131 };
132 
133 #endif
SMDS_Iterator< SMESH_OctreeNode * > SMESH_OctreeNodeIterator
int NbNodes() const
Return nb nodes in a tree.
void NodesAround(const SMDS_MeshNode *Node, std::list< const SMDS_MeshNode *> *Result, const double precision=0.)
SMDS_NodeIteratorPtr GetNodeIterator()
Return nodes iterator.
void UpdateByMoveNode(const SMDS_MeshNode *node, const gp_Pnt &toPnt)
Update data according to node movement.
std::set< const SMDS_MeshNode * > myNodes
virtual void buildChildrenData()
boost::shared_ptr< SMDS_Iterator< const SMDS_MeshNode * > > SMDS_NodeIteratorPtr
virtual SMESH_Octree * allocateOctreeChild() const
Abstract class for iterators.
virtual ~SMESH_OctreeNode()
Empty destructor.
virtual const bool isInside(const SMDS_MeshNode *Node, const double precision=0.)
void FindCoincidentNodes(std::set< const SMDS_MeshNode *> *nodes, const double theTolerance, std::list< std::list< const SMDS_MeshNode *> > *theGroupsOfNodes)
virtual Bnd_B3d * buildRootBox()
boost::shared_ptr< SMESH_OctreeNodeIterator > SMESH_OctreeNodeIteratorPtr
SMESH_OctreeNodeIteratorPtr GetChildrenIterator()
Return iterator over children.
SMESH_OctreeNode(const std::set< const SMDS_MeshNode *> &theNodes, const int maxLevel=-1, const int maxNbNodes=5, const double minBoxSize=0.)