1 // Copyright (C) 2007-2020 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 SMESH_OctreeNode : Octree with Nodes set
24 // inherites global class SMESH_Octree
25 // File : SMESH_OctreeNode.hxx
26 // Created : Tue Jan 16 16:00:00 2007
27 // Author : Nicolas Geimer & Aurelien Motteux (OCC)
30 #ifndef _SMESH_OCTREENODE_HXX_
31 #define _SMESH_OCTREENODE_HXX_
33 #include "SMDS_ElemIterator.hxx"
34 #include "SMDS_MeshNode.hxx"
35 #include "SMESH_Octree.hxx"
36 #include "SMESH_Utils.hxx"
47 class SMESH_OctreeNode;
49 typedef SMDS_Iterator<SMESH_OctreeNode*> SMESH_OctreeNodeIterator;
50 typedef boost::shared_ptr<SMESH_OctreeNodeIterator> SMESH_OctreeNodeIteratorPtr;
51 typedef std::set< const SMDS_MeshNode*, TIDCompare > TIDSortedNodeSet;
52 typedef std::list< std::list< const SMDS_MeshNode*> > TListOfNodeLists;
54 class SMESHUtils_EXPORT SMESH_OctreeNode : public SMESH_Octree
59 SMESH_OctreeNode (const TIDSortedNodeSet& theNodes, const int maxLevel = 8,
60 const int maxNbNodes = 5, const double minBoxSize = 0.);
63 virtual ~SMESH_OctreeNode () {};
65 // Tells us if Node is inside the current box with the precision "precision"
66 virtual bool isInside(const gp_XYZ& p, const double precision = 0.);
68 // Return in Result a list of Nodes potentials to be near Node
69 void AllNodesAround(const SMDS_MeshNode * node,
70 std::vector<const SMDS_MeshNode*>* result,
71 const double precision = 0.);
73 // Return in dist2Nodes nodes mapped to their square distance from Node
74 bool NodesAround(const gp_XYZ& point,
75 std::map<double, const SMDS_MeshNode*>& dist2Nodes,
78 // Return a list of Nodes close to a point
79 void NodesAround(const gp_XYZ& point,
80 std::vector<const SMDS_MeshNode*>& nodes,
83 // Return in theGroupsOfNodes a list of group of nodes close to each other within theTolerance
84 // Search for all the nodes in nodes
85 void FindCoincidentNodes ( TIDSortedNodeSet* nodes,
86 const double theTolerance,
87 TListOfNodeLists * theGroupsOfNodes);
89 // Static method that return in theGroupsOfNodes a list of group of nodes close to each other within
90 // theTolerance search for all the nodes in nodes
91 static void FindCoincidentNodes ( TIDSortedNodeSet& nodes,
92 TListOfNodeLists* theGroupsOfNodes,
93 const double theTolerance = 0.00001,
94 const int maxLevel = -1,
95 const int maxNbNodes = 5);
97 * \brief Update data according to node movement
99 void UpdateByMoveNode( const SMDS_MeshNode* node, const gp_Pnt& toPnt );
101 * \brief Return iterator over children
103 SMESH_OctreeNodeIteratorPtr GetChildrenIterator();
105 * \brief Return nodes iterator
107 SMDS_NodeIteratorPtr GetNodeIterator();
109 * \brief Return nb nodes in a tree
111 int NbNodes() const { return myNodes.size(); }
115 struct Limit : public SMESH_TreeLimit
118 Limit(int maxLevel, double minSize, int maxNbNodes)
119 :SMESH_TreeLimit(maxLevel, minSize), myMaxNbNodes(maxNbNodes) {}
122 int getMaxNbNodes() const;
126 // Compute the bounding box of the whole set of nodes myNodes
127 virtual Bnd_B3d* buildRootBox();
129 // Shares the father's data with each of his child
130 virtual void buildChildrenData();
132 // Construct an empty SMESH_OctreeNode used by SMESH_Octree::buildChildren()
133 virtual SMESH_Octree* newChild() const;
135 // Return in result a list of nodes closed to Node
136 void findCoincidentNodes( const SMDS_MeshNode * Node,
137 TIDSortedNodeSet* SetOfNodes,
138 std::vector<const SMDS_MeshNode*>* Result,
139 const double precision);
141 // The set of nodes inside the box of the Octree (Empty if Octree is not a leaf)
142 std::vector< const SMDS_MeshNode* > myNodes;