source: src/LinkedCell/LinkedCell_Model.hpp@ fbbcde

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Last change on this file since fbbcde was c29915, checked in by Frederik Heber <heber@…>, 13 years ago

LinkedCell_Model cstors are now private but LinkedCell_Controller is friend.

  • this way only LinkedCell_Controller can construct new models.
  • Property mode set to 100644
File size: 4.7 KB
Line 
1/*
2 * LinkedCell_Model.hpp
3 *
4 * Created on: Nov 15, 2011
5 * Author: heber
6 */
7
8#ifndef LINKEDCELL_MODEL_HPP_
9#define LINKEDCELL_MODEL_HPP_
10
11// include config.h
12#ifdef HAVE_CONFIG_H
13#include <config.h>
14#endif
15
16#include <boost/multi_array.hpp>
17#include <map>
18
19#include "CodePatterns/Observer/Observable.hpp"
20#include "CodePatterns/Observer/Observer.hpp"
21#include "LinearAlgebra/defs.hpp"
22#include "LinearAlgebra/RealSpaceMatrix.hpp"
23#include "LinkedCell/tripleIndex.hpp"
24#include "LinkedCell/types.hpp"
25
26class Box;
27class IPointCloud;
28class LinkedCell_ModelTest;
29class LinkedCell_ViewTest;
30class TesselPoint;
31class Vector;
32
33namespace LinkedCell {
34
35 class LinkedCell_Controller;
36
37 /** This is the model in the MVC ansatz for the LinkedCell structure.
38 *
39 * \sa linkedcell
40 *
41 * The model represents a certain linked cell structure with a specific mesh
42 * size (i.e. edge length). Note that all coordinates are internally always
43 * transformed to [0,1]^3, hence we require the domain (\ref Box) for the
44 * transformation matrices.
45 *
46 * This class stores internally list of particles in three-dimensional arrays.
47 *
48 */
49 class LinkedCell_Model : public Observer
50 {
51 //!> grant our own unit test access to internal structure
52 friend class ::LinkedCell_ModelTest;
53 //!> grant view's unit test access to internal structure (used as stub there)
54 friend class ::LinkedCell_ViewTest;
55 public:
56 ~LinkedCell_Model();
57
58 typedef std::pair<tripleIndex,tripleIndex> LinkedCellNeighborhoodBounds;
59
60 const tripleIndex getIndexToVector(const Vector &position) const;
61 const LinkedCellNeighborhoodBounds getNeighborhoodBounds(const tripleIndex &index, const tripleIndex &step = NearestNeighbors) const;
62 const tripleIndex getStep(const double distance) const;
63 const LinkedCell& getCell(const tripleIndex &index) const;
64 bool checkArrayBounds(const tripleIndex &index) const;
65 void applyBoundaryConditions(tripleIndex &index) const;
66 bool empty() const { return CellLookup.size() == 0; }
67
68 void addNode(const TesselPoint *Walker);
69 void deleteNode(const TesselPoint *Walker);
70 void moveNode(const TesselPoint *Walker);
71
72 void setPartition(double distance);
73
74 void insertPointCloud(IPointCloud &set);
75
76 //!> static indices to get nearest neighbors as default argument
77 static tripleIndex NearestNeighbors;
78
79 protected:
80 void update(Observable *publisher);
81 void recieveNotification(Observable *publisher, Notification_ptr notification);
82 void subjectKilled(Observable *publisher);
83
84 private:
85 friend class LinkedCell_Controller;
86 // don't allow any one else beside controller to create new models
87 LinkedCell_Model(const double radius, const Box &_domain);
88 LinkedCell_Model(IPointCloud &set, const double radius, const Box &_domain);
89 LinkedCell_Model(const LinkedCell_Model&);
90 LinkedCell_Model& operator=(const LinkedCell_Model&);
91
92 private:
93 void AllocateCells();
94 void Reset();
95
96 void startListening();
97 void stopListening();
98
99 // forward declaration for external Update class, containing update ops.
100 class Update;
101 // forward declaration for external changeModel class, containing change queue.
102 class changeModel;
103 //!> changeModel instance that contains a queue(map) with all changes to do.
104 changeModel *Changes;
105
106 void addNode_internal(const TesselPoint *Walker);
107 void deleteNode_internal(const TesselPoint *Walker);
108 void moveNode_internal(const TesselPoint *Walker);
109
110 LinkedCellArray::index getSize(const size_t dim) const;
111
112 typedef LinkedCellArray::size_type size_type;
113 typedef LinkedCellArray::iterator iterator3;
114 typedef boost::subarray_gen<LinkedCellArray, NDIM-1>::type::iterator iterator2;
115 typedef boost::subarray_gen<LinkedCellArray, NDIM-2>::type::iterator iterator1;
116
117 typedef std::map<const TesselPoint *, LinkedCell *> MapPointToCell;
118
119 //!> internal shape of multi_array
120 size_type *internal_Sizes;
121
122 //!> internal index of current cell, this makes going through linked cell faster
123 tripleIndex internal_index;
124
125 //!> Lookup map to get the cell for a given TesselPoint
126 MapPointToCell CellLookup;
127
128 //!> edge length per axis
129 boost::array<double, 3> EdgeLength;
130
131 // forward declaration for LinkedCellArrayContainer, containing cached LinkedCellArray
132 class LinkedCellArrayCache;
133 //!> Linked cell array cache
134 LinkedCellArrayCache *N;
135
136 //!> matrix to divide Box with
137 RealSpaceMatrix Dimensions;
138
139 //!> matrix to transform normal position to obtain partitioned position
140 RealSpaceMatrix Partition;
141
142 //!> Box with matrix transformations and boundary conditions
143 const Box &domain;
144 };
145
146}
147
148#endif /* LINKEDCELL_MODEL_HPP_ */
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