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root/OpenMD/branches/development/src/UseTheForce/EAM_FF.cpp
Revision: 1505
Committed: Sun Oct 3 22:18:59 2010 UTC (14 years, 6 months ago) by gezelter
File size: 4504 byte(s)
Log Message:
Less busted than it was on last check-in, but still won't completely
build.


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. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the
15 * distribution.
16 *
17 * This software is provided "AS IS," without a warranty of any
18 * kind. All express or implied conditions, representations and
19 * warranties, including any implied warranty of merchantability,
20 * fitness for a particular purpose or non-infringement, are hereby
21 * excluded. The University of Notre Dame and its licensors shall not
22 * be liable for any damages suffered by licensee as a result of
23 * using, modifying or distributing the software or its
24 * derivatives. In no event will the University of Notre Dame or its
25 * licensors be liable for any lost revenue, profit or data, or for
26 * direct, indirect, special, consequential, incidental or punitive
27 * damages, however caused and regardless of the theory of liability,
28 * arising out of the use of or inability to use software, even if the
29 * University of Notre Dame has been advised of the possibility of
30 * such damages.
31 *
32 * SUPPORT OPEN SCIENCE! If you use OpenMD or its source code in your
33 * research, please cite the appropriate papers when you publish your
34 * work. Good starting points are:
35 *
36 * [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
37 * [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
38 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).
39 * [4] Vardeman & Gezelter, in progress (2009).
40 */
41
42 #include "UseTheForce/EAM_FF.hpp"
43 #include "UseTheForce/ForceFieldFactory.hpp"
44 #include "io/BaseAtomTypesSectionParser.hpp"
45 #include "io/AtomTypesSectionParser.hpp"
46 #include "io/EAMAtomTypesSectionParser.hpp"
47 #include "io/OptionSectionParser.hpp"
48 #include "UseTheForce/ForceFieldCreator.hpp"
49 #include "utils/simError.h"
50 namespace OpenMD {
51
52 EAM_FF::EAM_FF(){
53
54 //set default force field filename
55 setForceFieldFileName("EAM.frc");
56
57 //the order of adding section parsers are important
58 //OptionSectionParser must come first to set options for other parsers
59 spMan_.push_back(new OptionSectionParser(forceFieldOptions_));
60 spMan_.push_back(new BaseAtomTypesSectionParser());
61 spMan_.push_back(new AtomTypesSectionParser());
62 spMan_.push_back(new EAMAtomTypesSectionParser(forceFieldOptions_));
63 }
64
65 void EAM_FF::parse(const std::string& filename) {
66 ifstrstream* ffStream;
67 ffStream = openForceFieldFile(filename);
68
69 spMan_.parse(*ffStream, *this);
70
71 ForceField::AtomTypeContainer::MapTypeIterator i;
72 AtomType* at;
73
74 for (at = atomTypeCont_.beginType(i); at != NULL; at = atomTypeCont_.nextType(i)) {
75 // useBase sets the responsibilities, and these have to be done
76 // after the atomTypes and Base types have all been scanned:
77
78 std::vector<AtomType*> ayb = at->allYourBase();
79 if (ayb.size() > 1) {
80 for (int j = ayb.size()-1; j > 0; j--) {
81
82 ayb[j-1]->useBase(ayb[j]);
83
84 }
85 }
86 at->makeFortranAtomType();
87 }
88
89 delete ffStream;
90 }
91
92
93 RealType EAM_FF::getRcutFromAtomType(AtomType* at){
94 RealType rcut = 0.0;
95 if (at->isEAM()) {
96 GenericData* data = at->getPropertyByName("EAM");
97 if (data != NULL) {
98 EAMParamGenericData* eamData = dynamic_cast<EAMParamGenericData*>(data);
99
100 if (eamData != NULL) {
101
102 EAMParam& eamParam = eamData->getData();
103 rcut = eamParam.rcut;
104 } else {
105 sprintf( painCave.errMsg,
106 "Can not cast GenericData to EAMParam\n");
107 painCave.severity = OPENMD_ERROR;
108 painCave.isFatal = 1;
109 simError();
110 }
111 } else {
112 sprintf( painCave.errMsg, "Can not find EAM Parameters\n");
113 painCave.severity = OPENMD_ERROR;
114 painCave.isFatal = 1;
115 simError();
116 }
117 } else {
118 rcut = ForceField::getRcutFromAtomType(at);
119 }
120
121 return rcut;
122 }
123
124 } //end namespace OpenMD

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