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root/group/trunk/OOPSE-4/src/applications/staticProps/RippleOP.cpp
Revision: 2783
Committed: Thu Jun 1 18:06:33 2006 UTC (18 years, 1 month ago) by xsun
File size: 9225 byte(s)
Log Message:
Add the RippleOP to calculate the orderparameter of the ripples.

File Contents

# User Rev Content
1 xsun 2783 /*
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
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24     * distribution.
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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 "applications/staticProps/RippleOP.hpp"
43     #include "utils/simError.h"
44     #include "io/DumpReader.hpp"
45     #include "primitives/Molecule.hpp"
46     #include "utils/NumericConstant.hpp"
47     namespace oopse {
48    
49    
50     RippleOP::RippleOP(SimInfo* info, const std::string& filename, const std::string& sele1, const std::string& sele2)
51     : StaticAnalyser(info, filename),
52     selectionScript1_(sele1), selectionScript2_(sele2), evaluator1_(info), evaluator2_(info),
53     seleMan1_(info), seleMan2_(info){
54    
55     setOutputName(getPrefix(filename) + ".rp2");
56    
57     evaluator1_.loadScriptString(sele1);
58     evaluator2_.loadScriptString(sele2);
59    
60     if (!evaluator1_.isDynamic()) {
61     seleMan1_.setSelectionSet(evaluator1_.evaluate());
62     }else {
63     sprintf( painCave.errMsg,
64     "--sele1 must be static selection\n");
65     painCave.severity = OOPSE_ERROR;
66     painCave.isFatal = 1;
67     simError();
68     }
69    
70     if (!evaluator2_.isDynamic()) {
71     seleMan2_.setSelectionSet(evaluator2_.evaluate());
72     }else {
73     sprintf( painCave.errMsg,
74     "--sele2 must be static selection\n");
75     painCave.severity = OOPSE_ERROR;
76     painCave.isFatal = 1;
77     simError();
78     }
79    
80     if (seleMan1_.getSelectionCount() != seleMan2_.getSelectionCount() ) {
81     sprintf( painCave.errMsg,
82     "The number of selected Stuntdoubles are not the same in --sele1 and sele2\n");
83     painCave.severity = OOPSE_ERROR;
84     painCave.isFatal = 1;
85     simError();
86    
87     }
88    
89     int i;
90     int j;
91     StuntDouble* sd1;
92     StuntDouble* sd2;
93     for (sd1 = seleMan1_.beginSelected(i), sd2 = seleMan2_.beginSelected(j);
94     sd1 != NULL && sd2 != NULL;
95     sd1 = seleMan1_.nextSelected(i), sd2 = seleMan2_.nextSelected(j)) {
96    
97     sdPairs_.push_back(std::make_pair(sd1, sd2));
98     }
99    
100     }
101    
102     void RippleOP::process() {
103     Molecule* mol;
104     RigidBody* rb;
105     SimInfo::MoleculeIterator mi;
106     Molecule::RigidBodyIterator rbIter;
107    
108     DumpReader reader(info_, dumpFilename_);
109     int nFrames = reader.getNFrames();
110    
111     for (int i = 0; i < nFrames; i += step_) {
112     reader.readFrame(i);
113     currentSnapshot_ = info_->getSnapshotManager()->getCurrentSnapshot();
114    
115    
116     for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
117     //change the positions of atoms which belong to the rigidbodies
118     for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
119     rb->updateAtoms();
120     }
121     }
122    
123     Mat3x3d orderTensorHead(0.0), orderTensorTail(0.0);
124     for (std::vector<std::pair<StuntDouble*, StuntDouble*> >::iterator j = sdPairs_.begin(); j != sdPairs_.end(); ++j) {
125     Vector3d vecHead = j->first->getElectroFrame().getColumn(2);
126     Vector3d vecTail = j->second->getA().getColumn(2);
127     orderTensorHead +=outProduct(vecHead, vecHead);
128     orderTensorTail +=outProduct(vecTail, vecTail);
129     }
130    
131     orderTensorHead /= sdPairs_.size();
132     orderTensorHead -= (RealType)(1.0/3.0) * Mat3x3d::identity();
133    
134     orderTensorTail /= sdPairs_.size();
135     orderTensorTail -= (RealType)(1.0/3.0) * Mat3x3d::identity();
136    
137     Vector3d eigenvaluesHead, eigenvaluesTail;
138     Mat3x3d eigenvectorsHead, eigenvectorsTail;
139     Mat3x3d::diagonalize(orderTensorHead, eigenvaluesHead, eigenvectorsHead);
140     Mat3x3d::diagonalize(orderTensorTail, eigenvaluesTail, eigenvectorsTail);
141    
142     int which;
143     RealType maxEval = 0.0;
144     for(int k = 0; k< 3; k++){
145     if(fabs(eigenvaluesHead[k]) > maxEval){
146     which = k;
147     maxEval = fabs(eigenvaluesHead[k]);
148     }
149     }
150     RealType p2Head = 1.5 * maxEval;
151     maxEval = 0.0;
152     for(int k = 0; k< 3; k++){
153     if(fabs(eigenvaluesTail[k]) > maxEval){
154     which = k;
155     maxEval = fabs(eigenvaluesTail[k]);
156     }
157     }
158     RealType p2Tail = 1.5 * maxEval;
159    
160     //the eigen vector is already normalized in SquareMatrix3::diagonalize
161     Vector3d directorHead = eigenvectorsHead.getColumn(which);
162     if (directorHead[0] < 0) {
163     directorHead.negate();
164     }
165     Vector3d directorTail = eigenvectorsTail.getColumn(which);
166     if (directorTail[0] < 0) {
167     directorTail.negate();
168     }
169    
170     OrderParam paramHead, paramTail;
171     paramHead.p2 = p2Head;
172     paramHead.director = directorHead;
173     paramTail.p2 = p2Tail;
174     paramTail.director = directorTail;
175    
176     orderParamsHead_.push_back(paramHead);
177     orderParamsTail_.push_back(paramTail);
178    
179     }
180    
181     OrderParam sumOPHead, errsumOPHead;
182     OrderParam sumOPTail, errsumOPTail;
183    
184     sumOPHead.p2 = 0.0;
185     errsumOPHead.p2 = 0.0;
186     for (std::size_t i = 0; i < orderParamsHead_.size(); ++i) {
187     sumOPHead.p2 += orderParamsHead_[i].p2;
188     sumOPHead.director[0] += orderParamsHead_[i].director[0];
189     sumOPHead.director[1] += orderParamsHead_[i].director[1];
190     sumOPHead.director[2] += orderParamsHead_[i].director[2];
191     }
192    
193     avgOPHead.p2 = sumOPHead.p2 / (RealType)orderParamsHead_.size();
194     avgOPHead.director[0] = sumOPHead.director[0] / (RealType)orderParamsHead_.size();
195     avgOPHead.director[1] = sumOPHead.director[1] / (RealType)orderParamsHead_.size();
196     avgOPHead.director[2] = sumOPHead.director[2] / (RealType)orderParamsHead_.size();
197     for (std::size_t i = 0; i < orderParamsHead_.size(); ++i) {
198     errsumOPHead.p2 += pow((orderParamsHead_[i].p2 - avgOPHead.p2), 2);
199     }
200     errOPHead.p2 = sqrt(errsumOPHead.p2 / (RealType)orderParamsHead_.size());
201    
202     sumOPTail.p2 = 0.0;
203     errsumOPTail.p2 = 0.0;
204     for (std::size_t i = 0; i < orderParamsTail_.size(); ++i) {
205     sumOPTail.p2 += orderParamsTail_[i].p2;
206     sumOPTail.director[0] += orderParamsTail_[i].director[0];
207     sumOPTail.director[1] += orderParamsTail_[i].director[1];
208     sumOPTail.director[2] += orderParamsTail_[i].director[2];
209     }
210    
211     avgOPTail.p2 = sumOPTail.p2 / (RealType)orderParamsTail_.size();
212     avgOPTail.director[0] = sumOPTail.director[0] / (RealType)orderParamsTail_.size();
213     avgOPTail.director[1] = sumOPTail.director[1] / (RealType)orderParamsTail_.size();
214     avgOPTail.director[2] = sumOPTail.director[2] / (RealType)orderParamsTail_.size();
215     for (std::size_t i = 0; i < orderParamsTail_.size(); ++i) {
216     errsumOPTail.p2 += pow((orderParamsTail_[i].p2 - avgOPTail.p2), 2);
217     }
218     errOPTail.p2 = sqrt(errsumOPTail.p2 / (RealType)orderParamsTail_.size());
219    
220     writeP2();
221    
222     }
223    
224     void RippleOP::writeP2() {
225    
226     std::ofstream os(getOutputFileName().c_str());
227     os<< "#selection1: (" << selectionScript1_ << ")\n";
228     os << "#p2\terror\tdirector_x\tdirector_y\tdiretor_z\n";
229    
230     os << avgOPHead.p2 << "\t"
231     << errOPHead.p2 << "\t"
232     << avgOPHead.director[0] << "\t"
233     << avgOPHead.director[1] << "\t"
234     << avgOPHead.director[2] << "\n";
235    
236     os << "selection2: (" << selectionScript2_ << ")\n";
237     os << "#p2\terror\tdirector_x\tdirector_y\tdiretor_z\n";
238    
239     os << avgOPTail.p2 << "\t"
240     << errOPTail.p2 << "\t"
241     << avgOPTail.director[0] << "\t"
242     << avgOPTail.director[1] << "\t"
243     << avgOPTail.director[2] << "\n";
244     }
245    
246     }
247    

Properties

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