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1 | // Created on: 2014-07-18 |
2 | // Created by: Alexander Malyshev |
3 | // Copyright (c) 2014-2014 OPEN CASCADE SAS |
4 | // |
5 | // This file is part of Open CASCADE Technology software library. |
6 | // |
7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
12 | // |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
15 | |
16 | #ifndef _math_PSOParticlesPool_HeaderFile |
17 | #define _math_PSOParticlesPool_HeaderFile |
18 | |
19 | #include <NCollection_Array1.hxx> |
20 | |
21 | //! Describes particle pool for using in PSO algorithm. |
22 | //! Indexes: |
23 | //! 0 <= aDimidx <= myDimensionCount - 1 |
24 | struct PSO_Particle |
25 | { |
26 | Standard_Real* Position; // Data for pointers allocated within PSOParticlesPool instance. |
27 | Standard_Real* Velocity; // Not need to delete it manually. |
28 | Standard_Real* BestPosition; |
29 | Standard_Real Distance; |
30 | Standard_Real BestDistance; |
31 | |
32 | PSO_Particle() |
33 | { |
34 | Distance = RealLast(); |
35 | BestDistance = RealLast(); |
36 | Position = 0; |
37 | Velocity = 0; |
38 | BestPosition = 0; |
39 | } |
40 | |
41 | //! Compares the particles according to their distances. |
42 | bool operator< (const PSO_Particle& thePnt) const |
43 | { |
44 | return Distance < thePnt.Distance; |
45 | } |
46 | }; |
47 | |
48 | // Indexes: |
49 | // 1 <= aParticleIdx <= myParticlesCount |
50 | class math_PSOParticlesPool |
51 | { |
52 | public: |
53 | |
54 | Standard_EXPORT math_PSOParticlesPool(const Standard_Integer theParticlesCount, |
55 | const Standard_Integer theDimensionCount); |
56 | |
57 | Standard_EXPORT PSO_Particle* GetParticle(const Standard_Integer theIdx); |
58 | |
59 | Standard_EXPORT PSO_Particle* GetBestParticle(); |
60 | |
61 | Standard_EXPORT PSO_Particle* GetWorstParticle(); |
62 | |
63 | Standard_EXPORT ~math_PSOParticlesPool(); |
64 | |
65 | private: |
66 | |
67 | NCollection_Array1<PSO_Particle> myParticlesPool; |
68 | NCollection_Array1<Standard_Real> myMemory; // Stores particles vector data. |
69 | Standard_Integer myParticlesCount; |
70 | Standard_Integer myDimensionCount; |
71 | }; |
72 | |
73 | #endif |