Geant4  10.00.p02
G4KDTreeResult.cc
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26 // $Id: G4KDTreeResult.cc 64057 2012-10-30 15:04:49Z gcosmo $
27 //
28 // Author: Mathieu Karamitros (kara (AT) cenbg . in2p3 . fr)
29 //
30 // History:
31 // -----------
32 // 10 Oct 2011 M.Karamitros created
33 //
34 // -------------------------------------------------------------------
35 
36 #include "G4KDTreeResult.hh"
37 #include "G4KDNode.hh"
38 #include "G4KDTree.hh"
39 
40 using namespace std;
41 
42 struct ResNode
43 {
44 public:
45  ResNode():fNode(0),fDistanceSqr(0){;}
46  ResNode(double distsqr, G4KDNode* node):fNode(node),fDistanceSqr(distsqr){;}
48  {
49  fNode = right.fNode;
50  fDistanceSqr= right.fDistanceSqr;
51  }
52  ~ResNode(){;}
53 
54  bool operator<(const ResNode& right) const
55  {
56  return (fDistanceSqr < right.fDistanceSqr);
57  }
58 
59  G4KDNode* GetNode() { return fNode;}
60  double GetDistanceSqr() { return fDistanceSqr;}
61 
62 protected:
64  double fDistanceSqr;
65 
66 private:
67  ResNode& operator=(const ResNode& rhs)
68  {
69  if(this == &rhs) return *this;
70  return *this;
71  }
72 };
73 
74 // comparison
75 bool CompareResNode(const ResNode& left, const ResNode& right)
76 {
77  return left < right;
78 }
79 
81 {
82  fTree = tree;
83 }
84 
86 {
87  std::list<ResNode>::erase(begin(),end());
88 }
89 
90 void G4KDTreeResult::Insert(double pos, G4KDNode* node)
91 {
92  std::list<ResNode>::push_back(ResNode(pos,node));
93 }
94 
96 {
97  std::list<ResNode>::erase(begin(),end());
98  fIterator = std::list<ResNode>::begin();
99 }
100 
102 {
103  std::list<ResNode>::sort(CompareResNode);
104 }
105 
107 {
108  return std::list<ResNode>::size();
109 }
110 
112 {
113  return std::list<ResNode>::size();
114 }
115 
117 {
118  fIterator = begin();
119 }
120 
122 {
123  return (fIterator == end());
124 }
125 
127 {
128  fIterator++;
129 }
130 
132 {
133  if(!pos) pos = new double[fTree->GetDim()];
134  memcpy(pos, (*fIterator).GetNode()->GetPosition(), fTree->GetDim() * sizeof *pos);
135  return (*fIterator).GetNode()->GetData();
136 }
137 
138 void* G4KDTreeResult::GetItem(double& x, double& y, double& z)
139 {
140  x = (*fIterator).GetNode()->GetPosition()[0];
141  y = (*fIterator).GetNode()->GetPosition()[1];
142  z = (*fIterator).GetNode()->GetPosition()[2];
143 
144  return (*fIterator).GetNode()->GetData();
145 }
146 
148 {
149  dist_sq = (*fIterator).GetDistanceSqr();
150  return (*fIterator).GetNode()->GetData();
151 }
152 
153 void* G4KDTreeResult::GetItemNDistanceSQ(double*& pos, double& dist_sq)
154 {
155  dist_sq = (*fIterator).GetDistanceSqr();
156  return GetItem(pos);
157 }
158 
160 {
161  return (*fIterator).GetNode()->GetData();
162 }
163 
165 {
166  return (*fIterator).GetDistanceSqr();
167 }
double GetDistanceSqr()
ResNode(const ResNode &right)
G4double z
Definition: TRTMaterials.hh:39
bool CompareResNode(const ResNode &left, const ResNode &right)
bool operator<(const ResNode &right) const
G4KDTree is used by the ITManager to locate the neareast neighbours.
Definition: G4KDTree.hh:62
virtual ~G4KDTreeResult()
G4KDTreeResult(G4KDTree *)
double fDistanceSqr
double GetDistanceSqr()
G4KDNode * fNode
ResNode & operator=(const ResNode &rhs)
void Insert(double, G4KDNode *)
G4KDNode stores one entity in G4KDTree This class is for internal use only.
Definition: G4KDNode.hh:50
std::list< ResNode >::iterator fIterator
ResNode(double distsqr, G4KDNode *node)
void * GetItemData()
void * GetItem(double *&)
G4KDTree * fTree
int GetDim()
Definition: G4KDTree.hh:143
static const G4double pos
G4KDNode * GetNode()
void * GetItemNDistanceSQ(double &)