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root/group/trunk/OOPSE-3.0/src/applications/dynamicProps/DipoleCorrFunc.cpp
Revision: 2676
Committed: Wed Mar 29 18:11:37 2006 UTC (18 years, 3 months ago) by tim
File size: 3234 byte(s)
Log Message:
Fix the normalization problem in calculating correlation functions

File Contents

# Content
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. 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/dynamicProps/DipoleCorrFunc.hpp"
43 #include "utils/simError.h"
44
45 namespace oopse {
46 DipoleCorrFunc::DipoleCorrFunc(SimInfo* info, const std::string& filename, const std::string& sele1, const std::string& sele2)
47 : ParticleTimeCorrFunc(info, filename, sele1, sele2, DataStorage::dslElectroFrame){
48
49 setCorrFuncType("Dipole Correlation Function");
50 setOutputName(getPrefix(dumpFilename_) + ".dcorr");
51
52 }
53
54 double DipoleCorrFunc::calcCorrVal(int frame1, int frame2, StuntDouble* sd1, StuntDouble* sd2) {
55 Vector3d v1 =sd1->getElectroFrame(frame1).getColumn(2);
56 Vector3d v2 = sd2->getElectroFrame(frame2).getColumn(2);
57
58 return dot(v1, v2)/(v1.length()*v2.length());
59 }
60
61
62 void DipoleCorrFunc::validateSelection(const SelectionManager& seleMan) {
63 StuntDouble* sd;
64 int i;
65 for (sd = seleMan1_.beginSelected(i); sd != NULL; sd = seleMan1_.nextSelected(i)) {
66 if (!sd->isDirectionalAtom()) {
67 sprintf(painCave.errMsg,
68 "DipoleCorrFunc::validateSelection Error: selected atoms do not have dipole moment\n");
69 painCave.isFatal = 1;
70 simError();
71 }
72 }
73
74 }
75
76 }
77
78