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root/OpenMD/trunk/src/primitives/Molecule.cpp
Revision: 2053
Committed: Mon Jan 12 16:04:43 2015 UTC (10 years, 3 months ago) by gezelter
File size: 13847 byte(s)
Log Message:
Removed dependence on elements table when figuring out H bond donors & acceptors

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, 234107 (2008).
39 * [4] Kuang & Gezelter, J. Chem. Phys. 133, 164101 (2010).
40 * [5] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
41 */
42
43 /**
44 * @file Molecule.cpp
45 * @author tlin
46 * @date 10/28/2004
47 * @version 1.0
48 */
49
50 #include <algorithm>
51 #include <set>
52
53 #include "primitives/Molecule.hpp"
54 #include "utils/MemoryUtils.hpp"
55 #include "utils/simError.h"
56 #include "utils/ElementsTable.hpp"
57
58 namespace OpenMD {
59 Molecule::Molecule(int stampId, int globalIndex, const std::string& molName,
60 int region) : stampId_(stampId),
61 globalIndex_(globalIndex),
62 moleculeName_(molName),
63 region_(region),
64 constrainTotalCharge_(false) {
65 }
66
67 Molecule::~Molecule() {
68
69 MemoryUtils::deletePointers(atoms_);
70 MemoryUtils::deletePointers(bonds_);
71 MemoryUtils::deletePointers(bends_);
72 MemoryUtils::deletePointers(torsions_);
73 MemoryUtils::deletePointers(inversions_);
74 MemoryUtils::deletePointers(rigidBodies_);
75 MemoryUtils::deletePointers(cutoffGroups_);
76 MemoryUtils::deletePointers(constraintPairs_);
77 MemoryUtils::deletePointers(constraintElems_);
78
79 // integrableObjects_ don't own the objects
80 integrableObjects_.clear();
81 fluctuatingCharges_.clear();
82
83 }
84
85 void Molecule::addAtom(Atom* atom) {
86 if (std::find(atoms_.begin(), atoms_.end(), atom) == atoms_.end()) {
87 atoms_.push_back(atom);
88 }
89 }
90
91 void Molecule::addBond(Bond* bond) {
92 if (std::find(bonds_.begin(), bonds_.end(), bond) == bonds_.end()) {
93 bonds_.push_back(bond);
94 }
95 }
96
97 void Molecule::addBend(Bend* bend) {
98 if (std::find(bends_.begin(), bends_.end(), bend) == bends_.end()) {
99 bends_.push_back(bend);
100 }
101 }
102
103 void Molecule::addTorsion(Torsion* torsion) {
104 if (std::find(torsions_.begin(), torsions_.end(), torsion) ==
105 torsions_.end()) {
106 torsions_.push_back(torsion);
107 }
108 }
109
110 void Molecule::addInversion(Inversion* inversion) {
111 if (std::find(inversions_.begin(), inversions_.end(), inversion) ==
112 inversions_.end()) {
113 inversions_.push_back(inversion);
114 }
115 }
116
117 void Molecule::addRigidBody(RigidBody *rb) {
118 if (std::find(rigidBodies_.begin(), rigidBodies_.end(), rb) ==
119 rigidBodies_.end()) {
120 rigidBodies_.push_back(rb);
121 }
122 }
123
124 void Molecule::addCutoffGroup(CutoffGroup* cp) {
125 if (std::find(cutoffGroups_.begin(), cutoffGroups_.end(), cp) ==
126 cutoffGroups_.end()) {
127 cutoffGroups_.push_back(cp);
128 }
129 }
130
131 void Molecule::addConstraintPair(ConstraintPair* cp) {
132 if (std::find(constraintPairs_.begin(), constraintPairs_.end(), cp) ==
133 constraintPairs_.end()) {
134 constraintPairs_.push_back(cp);
135 }
136 }
137
138 void Molecule::addConstraintElem(ConstraintElem* cp) {
139 if (std::find(constraintElems_.begin(), constraintElems_.end(), cp) ==
140 constraintElems_.end()) {
141 constraintElems_.push_back(cp);
142 }
143 }
144
145 void Molecule::complete() {
146
147 std::set<Atom*> rigidAtoms;
148 Atom* atom;
149 Atom* atom1;
150 Atom* atom2;
151 AtomIterator ai, aj;
152 RigidBody* rb;
153 RigidBodyIterator rbIter;
154 Bond* bond;
155 BondIterator bi;
156
157 // Get list of all the atoms that are part of rigid bodies
158
159 for (rb = beginRigidBody(rbIter); rb != NULL; rb = nextRigidBody(rbIter)) {
160 rigidAtoms.insert(rb->getBeginAtomIter(), rb->getEndAtomIter());
161 }
162
163 // add any atom that wasn't part of a rigid body to the list of integrableObjects
164
165 for (atom = beginAtom(ai); atom != NULL; atom = nextAtom(ai)) {
166
167 if (rigidAtoms.find(atom) == rigidAtoms.end()) {
168
169 // If an atom does not belong to a rigid body, it is an
170 // integrable object
171
172 integrableObjects_.push_back(atom);
173 }
174 }
175
176 // then add the rigid bodies themselves to the integrableObjects
177
178 for (rb = beginRigidBody(rbIter); rb != NULL; rb = nextRigidBody(rbIter)) {
179 integrableObjects_.push_back(rb);
180 }
181
182 // find the atoms that are fluctuating charges and add them to the
183 // fluctuatingCharges_ vector
184
185 for (atom = beginAtom(ai); atom != NULL; atom = nextAtom(ai)) {
186 if ( atom->isFluctuatingCharge() )
187 fluctuatingCharges_.push_back( atom );
188 }
189
190
191 // find the electronegative atoms and add them to the
192 // hBondAcceptors_ vector:
193
194 for (atom = beginAtom(ai); atom != NULL; atom = nextAtom(ai)) {
195 AtomType* at = atom->getAtomType();
196 // get the chain of base types for this atom type:
197 std::vector<AtomType*> ayb = at->allYourBase();
198 // use the last type in the chain of base types for the name:
199 std::string bn = ayb[ayb.size()-1]->getName();
200
201 if (bn.compare("O")==0 || bn.compare("N")==0 || bn.compare("F")==0)
202 hBondAcceptors_.push_back( atom );
203
204 }
205
206 // find electronegative atoms that are either bonded to
207 // hydrogens or are present in the same rigid bodies:
208
209 for (bond = beginBond(bi); bond != NULL; bond = nextBond(bi)) {
210 Atom* atom1 = bond->getAtomA();
211 Atom* atom2 = bond->getAtomB();
212 AtomType* at1 = atom1->getAtomType();
213 AtomType* at2 = atom1->getAtomType();
214 // get the chain of base types for this atom type:
215 std::vector<AtomType*> ayb1 = at1->allYourBase();
216 std::vector<AtomType*> ayb2 = at2->allYourBase();
217 // use the last type in the chain of base types for the name:
218 std::string bn1 = ayb1[ayb1.size()-1]->getName();
219 std::string bn2 = ayb2[ayb2.size()-1]->getName();
220
221 if (bn1.compare("H")==0) {
222 if (bn2.compare("O")==0 || bn2.compare("N")==0
223 || bn2.compare("F")==0) {
224 HBondDonor* donor = new HBondDonor();
225 donor->donorAtom = atom2;
226 donor->donatedHydrogen = atom1;
227 hBondDonors_.push_back( donor );
228 }
229 }
230 if (bn2.compare("H")==0) {
231 if (bn1.compare("O")==0 || bn1.compare("N")==0
232 || bn1.compare("F")==0) {
233 HBondDonor* donor = new HBondDonor();
234 donor->donorAtom = atom1;
235 donor->donatedHydrogen = atom2;
236 hBondDonors_.push_back( donor );
237 }
238 }
239 }
240
241 for (rb = beginRigidBody(rbIter); rb != NULL;
242 rb = nextRigidBody(rbIter)) {
243 for(atom1 = rb->beginAtom(ai); atom1 != NULL;
244 atom1 = rb->nextAtom(ai)) {
245 AtomType* at1 = atom1->getAtomType();
246 // get the chain of base types for this atom type:
247 std::vector<AtomType*> ayb1 = at1->allYourBase();
248 // use the last type in the chain of base types for the name:
249 std::string bn1 = ayb1[ayb1.size()-1]->getName();
250
251 if (bn1.compare("O")==0 || bn1.compare("N")==0
252 || bn1.compare("F")==0) {
253 for(atom2 = rb->beginAtom(aj); atom2 != NULL;
254 atom2 = rb->nextAtom(aj)) {
255 AtomType* at2 = atom2->getAtomType();
256 // get the chain of base types for this atom type:
257 std::vector<AtomType*> ayb2 = at2->allYourBase();
258 // use the last type in the chain of base types for the name:
259 std::string bn2 = ayb2[ayb2.size()-1]->getName();
260 if (bn2.compare("H")==0) {
261 HBondDonor* donor = new HBondDonor();
262 donor->donorAtom = atom1;
263 donor->donatedHydrogen = atom2;
264 hBondDonors_.push_back( donor );
265 }
266 }
267 }
268 }
269 }
270 }
271
272 RealType Molecule::getMass() {
273 StuntDouble* sd;
274 std::vector<StuntDouble*>::iterator i;
275 RealType mass = 0.0;
276
277 for (sd = beginIntegrableObject(i); sd != NULL; sd =
278 nextIntegrableObject(i)){
279 mass += sd->getMass();
280 }
281
282 return mass;
283 }
284
285 Vector3d Molecule::getCom() {
286 StuntDouble* sd;
287 std::vector<StuntDouble*>::iterator i;
288 Vector3d com;
289 RealType totalMass = 0;
290 RealType mass;
291
292 for (sd = beginIntegrableObject(i); sd != NULL; sd =
293 nextIntegrableObject(i)){
294 mass = sd->getMass();
295 totalMass += mass;
296 com += sd->getPos() * mass;
297 }
298
299 com /= totalMass;
300
301 return com;
302 }
303
304 Vector3d Molecule::getCom(int snapshotNo) {
305 StuntDouble* sd;
306 std::vector<StuntDouble*>::iterator i;
307 Vector3d com;
308 RealType totalMass = 0;
309 RealType mass;
310
311 for (sd = beginIntegrableObject(i); sd != NULL; sd =
312 nextIntegrableObject(i)){
313 mass = sd->getMass();
314 totalMass += mass;
315 com += sd->getPos(snapshotNo) * mass;
316 }
317
318 com /= totalMass;
319
320 return com;
321 }
322
323 void Molecule::moveCom(const Vector3d& delta) {
324 StuntDouble* sd;
325 std::vector<StuntDouble*>::iterator i;
326
327 for (sd = beginIntegrableObject(i); sd != NULL; sd =
328 nextIntegrableObject(i)){
329 sd->setPos(sd->getPos() + delta);
330 }
331 }
332
333 Vector3d Molecule::getComVel() {
334 StuntDouble* sd;
335 std::vector<StuntDouble*>::iterator i;
336 Vector3d velCom;
337 RealType totalMass = 0;
338 RealType mass;
339
340 for (sd = beginIntegrableObject(i); sd != NULL; sd =
341 nextIntegrableObject(i)){
342 mass = sd->getMass();
343 totalMass += mass;
344 velCom += sd->getVel() * mass;
345 }
346
347 velCom /= totalMass;
348
349 return velCom;
350 }
351
352 RealType Molecule::getPotential() {
353
354 Bond* bond;
355 Bend* bend;
356 Torsion* torsion;
357 Inversion* inversion;
358 Molecule::BondIterator bondIter;;
359 Molecule::BendIterator bendIter;
360 Molecule::TorsionIterator torsionIter;
361 Molecule::InversionIterator inversionIter;
362
363 RealType potential = 0.0;
364
365 for (bond = beginBond(bondIter); bond != NULL; bond = nextBond(bondIter)) {
366 potential += bond->getPotential();
367 }
368
369 for (bend = beginBend(bendIter); bend != NULL; bend = nextBend(bendIter)) {
370 potential += bend->getPotential();
371 }
372
373 for (torsion = beginTorsion(torsionIter); torsion != NULL; torsion =
374 nextTorsion(torsionIter)) {
375 potential += torsion->getPotential();
376 }
377
378 for (inversion = beginInversion(inversionIter); torsion != NULL;
379 inversion = nextInversion(inversionIter)) {
380 potential += inversion->getPotential();
381 }
382
383 return potential;
384
385 }
386
387 void Molecule::addProperty(GenericData* genData) {
388 properties_.addProperty(genData);
389 }
390
391 void Molecule::removeProperty(const std::string& propName) {
392 properties_.removeProperty(propName);
393 }
394
395 void Molecule::clearProperties() {
396 properties_.clearProperties();
397 }
398
399 std::vector<std::string> Molecule::getPropertyNames() {
400 return properties_.getPropertyNames();
401 }
402
403 std::vector<GenericData*> Molecule::getProperties() {
404 return properties_.getProperties();
405 }
406
407 GenericData* Molecule::getPropertyByName(const std::string& propName) {
408 return properties_.getPropertyByName(propName);
409 }
410
411 std::ostream& operator <<(std::ostream& o, Molecule& mol) {
412 o << std::endl;
413 o << "Molecule " << mol.getGlobalIndex() << "has: " << std::endl;
414 o << mol.getNAtoms() << " atoms" << std::endl;
415 o << mol.getNBonds() << " bonds" << std::endl;
416 o << mol.getNBends() << " bends" << std::endl;
417 o << mol.getNTorsions() << " torsions" << std::endl;
418 o << mol.getNInversions() << " inversions" << std::endl;
419 o << mol.getNRigidBodies() << " rigid bodies" << std::endl;
420 o << mol.getNIntegrableObjects() << " integrable objects" << std::endl;
421 o << mol.getNCutoffGroups() << " cutoff groups" << std::endl;
422 o << mol.getNConstraintPairs() << " constraint pairs" << std::endl;
423 o << mol.getNFluctuatingCharges() << " fluctuating charges" << std::endl;
424 return o;
425 }
426
427 }//end namespace OpenMD

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