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74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
// Created on: 2014-07-18
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// Created by: Alexander Malyshev
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// Copyright (c) 2014-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _math_PSOParticlesPool_HeaderFile
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#define _math_PSOParticlesPool_HeaderFile
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#include <NCollection_Array1.hxx>
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//! Describes particle pool for using in PSO algorithm.
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//! Indexes:
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//! 0 <= aDimidx <= myDimensionCount - 1
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struct PSO_Particle
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{
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Standard_Real* Position; // Data for pointers allocated within PSOParticlesPool instance.
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Standard_Real* Velocity; // Not need to delete it manually.
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Standard_Real* BestPosition;
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Standard_Real Distance;
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Standard_Real BestDistance;
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PSO_Particle()
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{
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Distance = RealLast();
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BestDistance = RealLast();
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Position = 0;
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Velocity = 0;
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BestPosition = 0;
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}
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//! Compares the particles according to their distances.
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bool operator< (const PSO_Particle& thePnt) const
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{
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return Distance < thePnt.Distance;
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}
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};
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// Indexes:
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// 1 <= aParticleIdx <= myParticlesCount
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class math_PSOParticlesPool
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{
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public:
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Standard_EXPORT math_PSOParticlesPool(const Standard_Integer theParticlesCount,
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const Standard_Integer theDimensionCount);
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Standard_EXPORT PSO_Particle* GetParticle(const Standard_Integer theIdx);
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Standard_EXPORT PSO_Particle* GetBestParticle();
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Standard_EXPORT PSO_Particle* GetWorstParticle();
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Standard_EXPORT ~math_PSOParticlesPool();
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private:
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NCollection_Array1<PSO_Particle> myParticlesPool;
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NCollection_Array1<Standard_Real> myMemory; // Stores particles vector data.
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Standard_Integer myParticlesCount;
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Standard_Integer myDimensionCount;
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};
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#endif
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