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root/group/trunk/OOPSE-3.0/src/applications/staticProps/GofXyz.cpp
Revision: 2038
Committed: Wed Feb 16 20:30:50 2005 UTC (19 years, 4 months ago) by tim
File size: 5190 byte(s)
Log Message:
change the default bin number

File Contents

# User Rev Content
1 tim 1994 /*
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. Acknowledgement of the program authors must be made in any
10     * publication of scientific results based in part on use of the
11     * program. An acceptable form of acknowledgement is citation of
12     * the article in which the program was described (Matthew
13     * A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14     * J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15     * Parallel Simulation Engine for Molecular Dynamics,"
16     * J. Comput. Chem. 26, pp. 252-271 (2005))
17     *
18     * 2. Redistributions of source code must retain the above copyright
19     * notice, this list of conditions and the following disclaimer.
20     *
21     * 3. Redistributions in binary form must reproduce the above copyright
22     * notice, this list of conditions and the following disclaimer in the
23     * documentation and/or other materials provided with the
24     * distribution.
25     *
26     * This software is provided "AS IS," without a warranty of any
27     * kind. All express or implied conditions, representations and
28     * warranties, including any implied warranty of merchantability,
29     * fitness for a particular purpose or non-infringement, are hereby
30     * excluded. The University of Notre Dame and its licensors shall not
31     * be liable for any damages suffered by licensee as a result of
32     * using, modifying or distributing the software or its
33     * derivatives. In no event will the University of Notre Dame or its
34     * licensors be liable for any lost revenue, profit or data, or for
35     * direct, indirect, special, consequential, incidental or punitive
36     * damages, however caused and regardless of the theory of liability,
37     * arising out of the use of or inability to use software, even if the
38     * University of Notre Dame has been advised of the possibility of
39     * such damages.
40     */
41    
42     #include <algorithm>
43     #include <fstream>
44     #include "applications/staticProps/GofXyz.hpp"
45     #include "utils/simError.h"
46    
47     namespace oopse {
48    
49 tim 2038 GofXyz::GofXyz(SimInfo* info, const std::string& filename, const std::string& sele1, const std::string& sele2, double len, int nrbins)
50     : RadialDistrFunc(info, filename, sele1, sele2), len_(len), nRBins_(nrbins) {
51 tim 1995 setOutputName(getPrefix(filename) + ".gxyz");
52 tim 1994
53 tim 2038 deltaR_ = len_ / nRBins_;
54    
55     histogram_.resize(nRBins_);
56     for (int i = 0 ; i < nRBins_; ++i) {
57     histogram_[i].resize(nRBins_);
58     for(int j = 0; j < nRBins_; ++j) {
59     histogram_[i][j].resize(nRBins_);
60     }
61     }
62 tim 1994 }
63    
64    
65     void GofXyz::preProcess() {
66 tim 1995 /*
67 tim 1994 for (int i = 0; i < avgGofr_.size(); ++i) {
68     std::fill(avgGofr_[i].begin(), avgGofr_[i].end(), 0);
69     }
70 tim 1995 */
71 tim 1994 }
72    
73     void GofXyz::initalizeHistogram() {
74 tim 1995 /*
75 tim 1994 npairs_ = 0;
76     for (int i = 0; i < histogram_.size(); ++i)
77     std::fill(histogram_[i].begin(), histogram_[i].end(), 0);
78 tim 1995 */
79 tim 1994 }
80    
81    
82     void GofXyz::processHistogram() {
83    
84 tim 1995 /*
85 tim 1994 double volume = info_->getSnapshotManager()->getCurrentSnapshot()->getVolume();
86     double pairDensity = npairs_ /volume;
87 tim 1995 double pairConstant = ( 4.0 * NumericConstant::PI * pairDensity ) / 3.0;
88 tim 1994
89     for(int i = 0 ; i < histogram_.size(); ++i){
90    
91     double rLower = i * deltaR_;
92     double rUpper = rLower + deltaR_;
93     double volSlice = ( rUpper * rUpper * rUpper ) - ( rLower * rLower * rLower );
94     double nIdeal = volSlice * pairConstant;
95    
96     for (int j = 0; j < histogram_[i].size(); ++j){
97     avgGofr_[i][j] += histogram_[i][j] / nIdeal;
98     }
99     }
100 tim 1995 */
101 tim 1994 }
102    
103     void GofXyz::collectHistogram(StuntDouble* sd1, StuntDouble* sd2) {
104    
105 tim 1995 /*
106 tim 1994 if (sd1 == sd2) {
107     return;
108     }
109    
110     Vector3d pos1 = sd1->getPos();
111     Vector3d pos2 = sd2->getPos();
112     Vector3d r12 = pos1 - pos2;
113     currentSnapshot_->wrapVector(r12);
114    
115     double distance = r12.length();
116     int whichRBin = distance / deltaR_;
117    
118    
119     double cosAngle = evaluateAngle(sd1, sd2);
120     double halfBin = (nAngleBins_ - 1) * 0.5;
121     int whichThetaBin = halfBin * (cosAngle + 1.0)
122     ++histogram_[whichRBin][whichThetaBin];
123    
124     ++npairs_;
125 tim 1995 */
126 tim 1994 }
127    
128     void GofXyz::writeRdf() {
129     std::ofstream rdfStream(outputFilename_.c_str());
130     if (rdfStream.is_open()) {
131     rdfStream << "#radial distribution function\n";
132     rdfStream << "#selection1: (" << selectionScript1_ << ")\t";
133     rdfStream << "selection2: (" << selectionScript2_ << ")\n";
134     rdfStream << "#r\tcorrValue\n";
135     for (int i = 0; i < histogram_.size(); ++i) {
136     double x = deltaR_ * (i + 0.5);
137    
138     for(int j = 0; j < histogram_[i].size(); ++j) {
139     double y = deltaR_ * (j+ 0.5);
140    
141     for(int k = 0;k < histogram_[i].size(); ++k) {
142 tim 1995 double z = deltaR_ * (k + 0.5);
143     rdfStream << x << "\t" << y << "\t" << z << "\t" << histogram_[i][j][k]/nProcessed_ << "\n";
144     }
145 tim 1994 }
146     }
147    
148     } else {
149    
150    
151     }
152    
153     rdfStream.close();
154     }
155    
156     }
157    
158    
159    

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