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root/group/trunk/OOPSE-2.0/src/applications/staticProps/GofRAngle.cpp
Revision: 1993
Committed: Thu Feb 10 14:15:52 2005 UTC (19 years, 5 months ago) by tim
File size: 5135 byte(s)
Log Message:
adding GofRAngle

File Contents

# User Rev Content
1 tim 1993 /*
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/GofRAngle.hpp"
45     #include "utils/simError.h"
46    
47     namespace oopse {
48    
49     GofRAngle::GofRAngle(SimInfo* info, const std::string& filename, const std::string& sele1, const std::string& sele2, double len)
50     : RadialDistrFunc(info, filename, sele1, sele2, len){
51    
52     histogram_.resize(nbins_);
53     avgGofr_.resize(nbins_);
54     }
55    
56    
57     void GofRAngle::preProcess() {
58     avgGofr_.resize(nbins_);
59     for (int i = 0; i < avgGofr_.size(); ++i)
60     std::fill(avgGofr_[i].begin(), avgGofr_[i].end(), 0);
61     }
62    
63     void GofRAngle::initalizeHistogram() {
64     npairs_ = 0;
65     for (int i = 0; i < histogram_.size(); ++i)
66     std::fill(histogram_[i].begin(), histogram_[i].end(), 0);
67     }
68    
69    
70     void GofRAngle::processHistogram() {
71    
72     double volume = info_->getSnapshotManager()->getCurrentSnapshot()->getVolume();
73     double pairDensity = npairs_ /volume;
74     double pairConstant = ( 4.0 * PI * pairDensity ) / 3.0;
75    
76     for(int i = 0 ; i < histogram_.size(); ++i){
77    
78     double rLower = i * deltaR_;
79     double rUpper = rLower + deltaR_;
80     double volSlice = ( rUpper * rUpper * rUpper ) - ( rLower * rLower * rLower );
81     double nIdeal = volSlice * pairConstant;
82    
83     for (int j = 0; j < histogram_[i].size(); ++j){
84     avgGofr_[i][j] += histogram_[i][j] / nIdeal;
85     }
86     }
87    
88     }
89    
90     void GofRAngle::collectHistogram(StuntDouble* sd1, StuntDouble* sd2) {
91    
92     if (sd1 == sd2) {
93     return;
94     }
95    
96     Vector3d pos1 = sd1->getPos();
97     Vector3d pos2 = sd2->getPos();
98     Vector3d r12 = pos1 - pos2;
99     currentSnapshot_->wrapVector(r12);
100    
101     double distance = r12.length();
102     int whichBin = distance / deltaR_;
103    
104    
105     double cosAngle = evaluateAngle(sd1, sd2);
106     histogram_[whichBin] ++;
107    
108     npairs_++;
109     }
110    
111     void GofRAngle::writeRdf() {
112     std::ofstream rdfStream(outputFilename_.c_str());
113     if (rdfStream.is_open()) {
114     rdfStream << "#radial distribution function\n";
115     rdfStream << "#selection1: (" << selectionScript1_ << ")\t";
116     rdfStream << "selection2: (" << selectionScript2_ << ")\n";
117     rdfStream << "#r\tcorrValue\n";
118     for (int i = 0; i < avgGofr_.size(); ++i) {
119     double r = deltaR_ * (i + 0.5);
120    
121     for(int j = 0; j < avgGofr_[i].size(); ++j) {
122     double cosAngle = ;
123     rdfStream << r << "\t" << cosAngle << "\t" << avgGofr_[i][j]/nProcessed_ << "\n";
124     }
125     }
126    
127     } else {
128    
129    
130     }
131    
132     rdfStream.close();
133     }
134    
135    
136    
137     double GofRTheta::evaluateAngle(StuntDouble* sd1, StuntDouble* sd2) {
138     Vector3d pos1 = sd1->getPos();
139     Vector3d pos2 = sd2->getPos();
140     Vector3d r12 = pos1 - pos2;
141     currentSnapshot_->wrapVector(r12);
142     r12.normalize();
143     Vector3d dipole = sd1->getElectroFrame().getColumn(2)£»
144     dipole.normalize();
145     return dot();
146     }
147    
148     double GofROmega::evaluateAngle(StuntDouble* sd1, StuntDouble* sd2) {
149     Vector3d v1 = sd1->getElectroFrame().getColumn(2);
150     Vector3d v2 = sd1->getElectroFrame().getColumn(2);
151    
152    
153     }
154    
155    
156     }
157    
158