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root/group/trunk/OOPSE-4/src/applications/staticProps/SCDOrderParameter.cpp
Revision: 2242
Committed: Fri May 27 21:11:24 2005 UTC (19 years, 1 month ago) by tim
File size: 8481 byte(s)
Log Message:
adding DensityPlot into StaticProps

File Contents

# User Rev Content
1 tim 2242 /*
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 "applications/staticProps/SCDOrderParameter.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     SCDElem::SCDElem(SimInfo* info, const std::string& sele1, const std::string& sele2,
50     const std::string& sele3) : sele1_(sele1), sele2_(sele2), sele3_(sele3){
51     SelectionManager seleMan1_(info);
52     SelectionManager seleMan2_(info);
53     SelectionManager seleMan3_(info);
54     SelectionEvaluator evaluator1_(info);
55     SelectionEvaluator evaluator2_(info);
56     SelectionEvaluator evaluator3_(info);
57    
58     evaluator1_.loadScriptString(sele1_);
59     evaluator2_.loadScriptString(sele2_);
60     evaluator3_.loadScriptString(sele3_);
61    
62     if (!evaluator1_.isDynamic()) {
63     seleMan1_.setSelectionSet(evaluator1_.evaluate());
64     }else {
65     sprintf( painCave.errMsg,
66     "dynamic selection is not allowed\n");
67     painCave.severity = OOPSE_ERROR;
68     painCave.isFatal = 1;
69     simError();
70     }
71    
72     if (!evaluator2_.isDynamic()) {
73     seleMan2_.setSelectionSet(evaluator2_.evaluate());
74     }else {
75     sprintf( painCave.errMsg,
76     "dynamic selection is not allowed\n");
77     painCave.severity = OOPSE_ERROR;
78     painCave.isFatal = 1;
79     simError();
80     }
81    
82     if (!evaluator3_.isDynamic()) {
83     seleMan3_.setSelectionSet(evaluator3_.evaluate());
84     }else {
85     sprintf( painCave.errMsg,
86     "dynamic selection is not allowed\n");
87     painCave.severity = OOPSE_ERROR;
88     painCave.isFatal = 1;
89     simError();
90     }
91    
92     int nselected1 = seleMan1_.getSelectionCount();
93     int nselected2 = seleMan2_.getSelectionCount();
94     int nselected3 = seleMan3_.getSelectionCount();
95    
96     if ( nselected1 != nselected2 || nselected1 != nselected3 ) {
97     sprintf( painCave.errMsg,
98     "The number of selected Stuntdoubles must be the same\n");
99     painCave.severity = OOPSE_ERROR;
100     painCave.isFatal = 1;
101     simError();
102     }
103    
104     int i;
105     int j;
106     int k;
107     StuntDouble* sd1;
108     StuntDouble* sd2;
109     StuntDouble* sd3;
110     for (sd1 = seleMan1_.beginSelected(i), sd2 = seleMan2_.beginSelected(j), sd3 = seleMan3_.beginSelected(k);
111     sd1 != NULL && sd2 != NULL && sd3 != NULL;
112     sd1 = seleMan1_.nextSelected(i), sd2 = seleMan2_.nextSelected(j), sd3 = seleMan3_.nextSelected(k)) {
113     tuples_.push_back(make_tuple3(sd1, sd2, sd3));
114     }
115    
116     }
117    
118     double SCDElem::calcSCD(Snapshot* snapshot) {
119     std::vector<SDTuple3>::iterator i;
120     Vector3d normal(0.0, 0.0, 1.0);
121     double scd = 0.0;
122     for (i = tuples_.begin(); i != tuples_.end(); ++i) {
123     Vector3d zAxis = i->third->getPos() - i->first->getPos();
124     snapshot->wrapVector(zAxis);
125     Vector3d v12 = i->second->getPos() - i->first->getPos();
126     snapshot->wrapVector(v12);
127     Vector3d xAxis = cross(v12, zAxis);
128     Vector3d yAxis = cross(zAxis, xAxis);
129    
130     xAxis.normalize();
131     yAxis.normalize();
132     zAxis.normalize();
133     double cosThetaX = dot(xAxis, normal);
134     double sxx = 0.5*(3*cosThetaX * cosThetaX - 1.0);
135     double cosThetaY = dot(yAxis, normal);
136     double syy = 0.5*(3*cosThetaY * cosThetaY - 1.0);
137     scd += 2.0/3.0*sxx + 1.0/3.0*syy;
138     }
139     scd /= tuples_.size();
140     return scd;
141    
142     }
143    
144     SCDOrderParameter::SCDOrderParameter(SimInfo* info, const std::string& filename,
145     const std::string& sele1, const std::string& sele2, const std::string& sele3)
146     : StaticAnalyser(info, filename) {
147    
148     setOutputName(getPrefix(filename) + ".scd");
149    
150     scdElems_.push_back(SCDElem(info, sele1, sele2, sele3));
151     scdParam_.resize(scdElems_.size());
152     std::fill(scdParam_.begin(), scdParam_.end(), 0.0);
153    
154     }
155    
156     SCDOrderParameter::SCDOrderParameter(SimInfo* info, const std::string& filename,
157     const std::string& molname, int beginIndex, int endIndex)
158     : StaticAnalyser(info, filename) {
159    
160     setOutputName(getPrefix(filename) + ".scd");
161    
162     assert(beginIndex >=0 && endIndex >=0 && beginIndex <= endIndex - 2);
163     for (int i = beginIndex; i <= endIndex -2 ; ++i) {
164     std::string selectionTemplate = "select " + molname + ".";
165     std::string sele1 = selectionTemplate + OOPSE_itoa(i);
166     std::string sele2 = selectionTemplate + OOPSE_itoa(i+1);
167     std::string sele3 = selectionTemplate + OOPSE_itoa(i+2);
168    
169     scdElems_.push_back(SCDElem(info, sele1, sele2, sele3));
170     }
171    
172     scdParam_.resize(scdElems_.size());
173     std::fill(scdParam_.begin(), scdParam_.end(), 0.0);
174     }
175    
176    
177     void SCDOrderParameter::process() {
178     Molecule* mol;
179     RigidBody* rb;
180     SimInfo::MoleculeIterator mi;
181     Molecule::RigidBodyIterator rbIter;
182    
183     DumpReader reader(info_, dumpFilename_);
184     int nFrames = reader.getNFrames();
185    
186     for (int i = 0; i < nFrames; i += step_) {
187     reader.readFrame(i);
188     currentSnapshot_ = info_->getSnapshotManager()->getCurrentSnapshot();
189    
190    
191     for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
192     //change the positions of atoms which belong to the rigidbodies
193     for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
194     rb->updateAtoms();
195     }
196    
197     }
198    
199     for (std::size_t j = 0; j < scdElems_.size(); ++j) {
200     scdParam_[j] += scdElems_[j].calcSCD(currentSnapshot_);
201     }
202    
203     }
204    
205     int nProcessed = nFrames /step_;
206     for (std::size_t j = 0; j < scdElems_.size(); ++j) {
207     scdParam_[j] /= nProcessed;
208     }
209    
210     writeSCD();
211    
212     }
213    
214     void SCDOrderParameter::writeSCD() {
215    
216     std::ofstream os(getOutputFileName().c_str());
217     os << "#scd parameter\n";
218     for (std::size_t i = 0; i < scdElems_.size(); ++i) {
219     os << "#[column " << i+1 << "]\t"
220     << "sele1: \"" << scdElems_[i].getSelection1() << "\",\t"
221     << "sele2: \"" << scdElems_[i].getSelection2() << "\",\t"
222     << "sele3: \"" << scdElems_[i].getSelection3() << "\"\n";
223     }
224    
225     for (std::size_t i = 0; i < scdElems_.size(); ++i) {
226     os << scdParam_[i]<< "\t";
227     }
228     os << std::endl;
229     }
230    
231    
232     }
233    
234    

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