| 1 | /* | 
| 2 | * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved. | 
| 3 | * | 
| 4 | * The University of Notre Dame grants you ("Licensee") a | 
| 5 | * non-exclusive, royalty free, license to use, modify and | 
| 6 | * redistribute this software in source and binary code form, provided | 
| 7 | * that the following conditions are met: | 
| 8 | * | 
| 9 | * 1. Redistributions of source code must retain the above copyright | 
| 10 | *    notice, this list of conditions and the following disclaimer. | 
| 11 | * | 
| 12 | * 2. Redistributions in binary form must reproduce the above copyright | 
| 13 | *    notice, this list of conditions and the following disclaimer in the | 
| 14 | *    documentation and/or other materials provided with the | 
| 15 | *    distribution. | 
| 16 | * | 
| 17 | * This software is provided "AS IS," without a warranty of any | 
| 18 | * kind. All express or implied conditions, representations and | 
| 19 | * warranties, including any implied warranty of merchantability, | 
| 20 | * fitness for a particular purpose or non-infringement, are hereby | 
| 21 | * excluded.  The University of Notre Dame and its licensors shall not | 
| 22 | * be liable for any damages suffered by licensee as a result of | 
| 23 | * using, modifying or distributing the software or its | 
| 24 | * derivatives. In no event will the University of Notre Dame or its | 
| 25 | * licensors be liable for any lost revenue, profit or data, or for | 
| 26 | * direct, indirect, special, consequential, incidental or punitive | 
| 27 | * damages, however caused and regardless of the theory of liability, | 
| 28 | * arising out of the use of or inability to use software, even if the | 
| 29 | * University of Notre Dame has been advised of the possibility of | 
| 30 | * such damages. | 
| 31 | * | 
| 32 | * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your | 
| 33 | * research, please cite the appropriate papers when you publish your | 
| 34 | * work.  Good starting points are: | 
| 35 | * | 
| 36 | * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005). | 
| 37 | * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006). | 
| 38 | * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008). | 
| 39 | * [4]  Vardeman & Gezelter, in progress (2009). | 
| 40 | * | 
| 41 | *  Created by J. Daniel Gezelter on 09/26/06 | 
| 42 | *  @author  J. Daniel Gezelter | 
| 43 | *  @version $Id: BOPofR.hpp,v 1.3 2009-11-25 20:01:59 gezelter Exp $ | 
| 44 | * | 
| 45 | */ | 
| 46 |  | 
| 47 | #ifndef APPLICATIONS_STATICPROPS_BOPOFR_HPP | 
| 48 | #define APPLICATIONS_STATICPROPS_BOPOFR_HPP | 
| 49 | #include "selection/SelectionEvaluator.hpp" | 
| 50 | #include "selection/SelectionManager.hpp" | 
| 51 | #include "applications/staticProps/StaticAnalyser.hpp" | 
| 52 | #include "math/Vector3.hpp" | 
| 53 | #include "math/SphericalHarmonic.hpp" | 
| 54 | #include "math/Wigner3jm_interface.h" | 
| 55 |  | 
| 56 | namespace OpenMD { | 
| 57 |  | 
| 58 | /** | 
| 59 | * @class BondOrderParameter | 
| 60 | * @brief Bond Order Parameter | 
| 61 | * | 
| 62 | * Computes orientational bond order parameters as outlined in: | 
| 63 | * | 
| 64 | *   "Bond-orientaional order in liquids and glasses," by | 
| 65 | *    P. J. Steinhart, D. R. Nelson, and M. Ronchetti, | 
| 66 | *    Phys. Rev. B, 28, 784 (1983). | 
| 67 | * | 
| 68 | * A somewhat more useful reference which has formulae for these order | 
| 69 | * parameters for individual atoms is: | 
| 70 | * | 
| 71 | *   "Numerical calculation of the rate of crystal nucleation in a | 
| 72 | *    Lennard-Jones system at moderate undercooling," by | 
| 73 | *    Pieter Rein ten Wolde, Maria J. Ruiz-Montero, and Daan Frenkel, | 
| 74 | *    J. Chem. Phys. 104, pp. 9932-9947 (1996). | 
| 75 | * | 
| 76 | * Note that this version uses a single cutoff radius to decide | 
| 77 | * membership in the list of neighbors, and does not have use a | 
| 78 | * distance-dependent weighting as used in the second reference above. | 
| 79 | * | 
| 80 | * The selection script can be utilized to look at specific types of | 
| 81 | * central atoms.  A dynamic selector can also be utilized.  By default, | 
| 82 | * this class computes the Q_{l} and \hat{W}_{l} parameters up to l = 12. | 
| 83 | * The completed configurational averages of these values as | 
| 84 | * well as the distributions of atomic q_{l} and \hat{w}_{l} values | 
| 85 | * are then placed in .boq and .bow files. | 
| 86 | */ | 
| 87 | class BOPofR : public StaticAnalyser{ | 
| 88 | public: | 
| 89 | BOPofR(SimInfo* info, const std::string& filename, | 
| 90 | const std::string& sele, double rCut, int nbins, RealType len); | 
| 91 |  | 
| 92 | virtual ~BOPofR(); | 
| 93 | virtual void process(); | 
| 94 |  | 
| 95 | private: | 
| 96 | virtual void initalizeHistogram(); | 
| 97 | virtual void collectHistogram(std::vector<RealType> q, | 
| 98 | std::vector<ComplexType> what, RealType distCOM); | 
| 99 | void writeOrderParameter(); | 
| 100 |  | 
| 101 | Snapshot* currentSnapshot_; | 
| 102 | std::string selectionScript_; | 
| 103 | SelectionManager seleMan_; | 
| 104 | SelectionEvaluator evaluator_; | 
| 105 |  | 
| 106 | RealType rCut_; | 
| 107 | static const int lMax_ = 6; | 
| 108 | int frameCounter_; | 
| 109 | int nBins_; | 
| 110 | RealType len_; | 
| 111 | RealType deltaR_; | 
| 112 |  | 
| 113 | std::map<std::pair<int,int>,int> m2Min; | 
| 114 | std::map<std::pair<int,int>,int> m2Max; | 
| 115 | std::map<std::pair<int,int>,std::vector<RealType> > w3j; | 
| 116 |  | 
| 117 | std::vector<int> RCount_; | 
| 118 | std::vector<int>  WofR_; | 
| 119 | std::vector<int> QofR_; | 
| 120 | }; | 
| 121 | } | 
| 122 |  | 
| 123 | #endif | 
| 124 |  |