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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 | #include <math_PSOParticlesPool.hxx> |
17 | #include <algorithm> |
18 | |
19 | |
20 | //======================================================================= |
21 | //function : math_PSOParticlesPool |
22 | //purpose : Constructor |
23 | //======================================================================= |
24 | math_PSOParticlesPool::math_PSOParticlesPool(const Standard_Integer theParticlesCount, |
25 | const Standard_Integer theDimensionCount) |
26 | : myParticlesPool(1, theParticlesCount), |
27 | myMemory(0, theParticlesCount * (theDimensionCount // Position |
28 | + theDimensionCount // Velocity |
29 | + theDimensionCount) // BestPosition |
30 | - 1) |
31 | { |
32 | myParticlesCount = theParticlesCount; |
33 | myDimensionCount = theDimensionCount; |
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34 | myMemory.Init(0.); |
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35 | // Pointers adjusting. |
36 | Standard_Integer aParIdx, aShiftIdx; |
37 | for(aParIdx = 1; aParIdx <= myParticlesCount; ++aParIdx) |
38 | { |
39 | aShiftIdx = (theDimensionCount * 3) * (aParIdx - 1); |
40 | myParticlesPool(aParIdx).Position = &myMemory(aShiftIdx); |
41 | myParticlesPool(aParIdx).Velocity = &myMemory(aShiftIdx + theDimensionCount); |
42 | myParticlesPool(aParIdx).BestPosition = &myMemory(aShiftIdx + 2 * theDimensionCount); |
43 | } |
44 | } |
45 | |
46 | //======================================================================= |
47 | //function : ~math_PSOParticlesPool |
48 | //purpose : Destructor |
49 | //======================================================================= |
50 | math_PSOParticlesPool::~math_PSOParticlesPool() |
51 | { |
52 | } |
53 | |
54 | //======================================================================= |
55 | //function : GetParticle |
56 | //purpose : |
57 | //======================================================================= |
58 | PSO_Particle* math_PSOParticlesPool::GetParticle(const Standard_Integer theIdx) |
59 | { |
60 | return &myParticlesPool(theIdx); |
61 | } |
62 | |
63 | //======================================================================= |
64 | //function : GetBestParticle |
65 | //purpose : |
66 | //======================================================================= |
67 | PSO_Particle* math_PSOParticlesPool::GetBestParticle() |
68 | { |
69 | return &*std::min_element(myParticlesPool.begin(), myParticlesPool.end()); |
70 | } |
71 | |
72 | //======================================================================= |
73 | //function : GetWorstParticle |
74 | //purpose : |
75 | //======================================================================= |
76 | PSO_Particle* math_PSOParticlesPool::GetWorstParticle() |
77 | { |
78 | return &*std::max_element(myParticlesPool.begin(), myParticlesPool.end()); |
79 | } |