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/* |
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* Copyright (c) 2005 The University of Notre Dame. All Rights Reserved. |
3 |
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* |
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* The University of Notre Dame grants you ("Licensee") a |
5 |
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* non-exclusive, royalty free, license to use, modify and |
6 |
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* redistribute this software in source and binary code form, provided |
7 |
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* that the following conditions are met: |
8 |
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* |
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* 1. Acknowledgement of the program authors must be made in any |
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* publication of scientific results based in part on use of the |
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* 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 |
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* Parallel Simulation Engine for Molecular Dynamics," |
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* J. Comput. Chem. 26, pp. 252-271 (2005)) |
17 |
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* |
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* 2. Redistributions of source code must retain the above copyright |
19 |
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* notice, this list of conditions and the following disclaimer. |
20 |
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* |
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* 3. Redistributions in binary form must reproduce the above copyright |
22 |
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* notice, this list of conditions and the following disclaimer in the |
23 |
< |
* documentation and/or other materials provided with the |
24 |
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* distribution. |
25 |
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* |
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* This software is provided "AS IS," without a warranty of any |
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* kind. All express or implied conditions, representations and |
28 |
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* warranties, including any implied warranty of merchantability, |
29 |
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* fitness for a particular purpose or non-infringement, are hereby |
30 |
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* excluded. The University of Notre Dame and its licensors shall not |
31 |
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* 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 |
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* University of Notre Dame has been advised of the possibility of |
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* such damages. |
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*/ |
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|
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#include "applications/staticProps/BondOrderParameter.hpp" |
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#include "utils/simError.h" |
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#include "io/DumpReader.hpp" |
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#include "primitives/Molecule.hpp" |
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#include "utils/NumericConstant.hpp" |
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namespace oopse { |
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|
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|
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BondOrderParameter::BondOrderParameter(SimInfo* info, const std::string& filename, const std::string& sele1, |
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const std::string& sele2, double rCut, int lNumber) |
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: StaticAnalyser(info, filename), |
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selectionScript1_(sele1), evaluator1_(info), |
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seleMan1_(info){ |
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|
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setOutputName(getPrefix(filename) + ".p2"); |
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|
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evaluator1_.loadScriptString(sele1); |
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evaluator2_.loadScriptString(sele2); |
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|
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if (!evaluator1_.isDynamic()) { |
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seleMan1_.setSelectionSet(evaluator1_.evaluate()); |
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}else { |
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sprintf( painCave.errMsg, |
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"--sele1 must be static selection\n"); |
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painCave.severity = OOPSE_ERROR; |
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painCave.isFatal = 1; |
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simError(); |
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} |
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|
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|
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int i; |
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int j; |
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StuntDouble* sd1; |
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StuntDouble* sd2; |
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for (sd1 = seleMan1_.beginSelected(i), sd2 = seleMan1_.beginSelected(j); |
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sd1 != NULL && sd2 != NULL; |
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sd1 = seleMan1_.nextSelected(i), sd2 = seleMan2_.nextSelected(j)) { |
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|
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sdPairs_.push_back(std::make_pair(sd1, sd2)); |
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} |
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|
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|
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} |
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|
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void BondOrderParameter::process() { |
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Molecule* mol; |
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RigidBody* rb; |
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SimInfo::MoleculeIterator mi; |
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Molecule::RigidBodyIterator rbIter; |
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|
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DumpReader reader(info_, dumpFilename_); |
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int nFrames = reader.getNFrames(); |
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|
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for (int i = 0; i < nFrames; i += step_) { |
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reader.readFrame(i); |
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currentSnapshot_ = info_->getSnapshotManager()->getCurrentSnapshot(); |
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|
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|
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for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) { |
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//change the positions of atoms which belong to the rigidbodies |
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for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) { |
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rb->updateAtoms(); |
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} |
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|
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} |
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|
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Mat3x3d orderTensor(0.0); |
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for (std::vector<std::pair<StuntDouble*, StuntDouble*> >::iterator j = sdPairs_.begin(); j != sdPairs_.end(); ++j) { |
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Vector3d vec = j->first->getPos() - j->second->getPos(); |
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currentSnapshot_->wrapVector(vec); |
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vec.normalize(); |
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orderTensor +=outProduct(vec, vec); |
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} |
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|
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orderTensor /= sdPairs_.size(); |
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orderTensor -= (RealType)(1.0/3.0) * Mat3x3d::identity(); |
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|
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Vector3d eigenvalues; |
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Mat3x3d eigenvectors; |
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Mat3x3d::diagonalize(orderTensor, eigenvalues, eigenvectors); |
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|
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int which; |
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RealType maxEval = 0.0; |
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for(int k = 0; k< 3; k++){ |
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if(fabs(eigenvalues[k]) > maxEval){ |
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which = k; |
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maxEval = fabs(eigenvalues[k]); |
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} |
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} |
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RealType p2 = 1.5 * maxEval; |
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|
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//the eigen vector is already normalized in SquareMatrix3::diagonalize |
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Vector3d director = eigenvectors.getColumn(which); |
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if (director[0] < 0) { |
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director.negate(); |
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} |
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|
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RealType angle = 0.0; |
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for (std::vector<std::pair<StuntDouble*, StuntDouble*> >::iterator j = sdPairs_.begin(); j != sdPairs_.end(); ++j) { |
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Vector3d vec = j->first->getPos() - j->second->getPos(); |
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currentSnapshot_->wrapVector(vec); |
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vec.normalize(); |
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|
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angle += acos(dot(vec, director)) ; |
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} |
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angle = angle / (sdPairs_.size() * NumericConstant::PI) * 180.0; |
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|
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OrderParam param; |
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param.p2 = p2; |
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param.director = director; |
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param.angle = angle; |
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|
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orderParams_.push_back(param); |
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|
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} |
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|
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writeP2(); |
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|
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} |
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|
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void BondOrderParameter::writeOrderParameter() { |
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|
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std::ofstream os(getOutputFileName().c_str()); |
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os << "#radial distribution function\n"; |
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os<< "#selection1: (" << selectionScript1_ << ")\t"; |
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os << "selection2: (" << selectionScript2_ << ")\n"; |
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os << "#p2\tdirector_x\tdirector_y\tdiretor_z\tangle(degree)\n"; |
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|
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for (std::size_t i = 0; i < orderParams_.size(); ++i) { |
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os << orderParams_[i].p2 << "\t" |
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<< orderParams_[i].director[0] << "\t" |
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<< orderParams_[i].director[1] << "\t" |
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<< orderParams_[i].director[2] << "\t" |
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<< orderParams_[i].angle << "\n"; |
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|
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} |
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|
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} |
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|
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} |
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|
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 |
> |
*/ |
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|
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|
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/* Creates orientational bond order parameters as outlined by |
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* Bond-orientaional order in liquids and glasses, Steinhart,Nelson,Ronchetti |
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* Phys Rev B, 28,784,1983 |
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* |
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*/ |
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|
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#include "applications/staticProps/BondOrderParameter.hpp" |
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#include "utils/simError.h" |
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#include "io/DumpReader.hpp" |
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#include "primitives/Molecule.hpp" |
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#include "utils/NumericConstant.hpp" |
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#include "math/SphericalHarmonic.hpp" |
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|
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namespace oopse { |
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|
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BondOrderParameter::BondOrderParameter(SimInfo* info, |
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const std::string& filename, |
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const std::string& sele, |
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double rCut, int lNumber, int nbins) : StaticAnalyser(info, filename), selectionScript_(sele), evaluator_(info), seleMan_(info){ |
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|
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setOutputName(getPrefix(filename) + ".bo"); |
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|
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evaluator_.loadScriptString(sele); |
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if (!evaluator_.isDynamic()) { |
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seleMan_.setSelectionSet(evaluator_.evaluate()); |
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} |
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|
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// Set up cutoff radius and order of the Legendre Polynomial: |
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|
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lNumber_ = lNumber; |
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rCut_ = rCut; |
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mSize_ = 2*lNumber_+1; |
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|
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// Q can take values from 0 to 1 |
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|
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MinQ_ = 0.0; |
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MaxQ_ = 3.0; |
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deltaQ_ = (MaxQ_ - MinQ_) / nbins; |
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Q_histogram_.resize(nbins); |
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|
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// W_6 for icosahedral clusters is 11 / sqrt(4199) = 0.169754, so we'll |
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// use values for MinW_ and MaxW_ that are slightly larger than this: |
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|
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MinW_ = -0.18; |
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MaxW_ = 0.18; |
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deltaW_ = (MaxW_ - MinW_) / nbins; |
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W_histogram_.resize(nbins); |
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|
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} |
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|
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BondOrderParameter::~BondOrderParameter() { |
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Q_histogram_.clear(); |
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W_histogram_.clear(); |
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} |
97 |
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|
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> |
void BondOrderParameter::initalizeHistogram() { |
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std::fill(Q_histogram_.begin(), Q_histogram_.end(), 0); |
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std::fill(W_histogram_.begin(), W_histogram_.end(), 0); |
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} |
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|
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void BondOrderParameter::process() { |
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Molecule* mol; |
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Atom* atom; |
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RigidBody* rb; |
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int myIndex; |
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SimInfo::MoleculeIterator mi; |
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Molecule::RigidBodyIterator rbIter; |
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Molecule::AtomIterator ai; |
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StuntDouble* sd; |
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Vector3d vec; |
113 |
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RealType costheta; |
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RealType phi; |
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RealType r; |
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RealType dist; |
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std::map<int,ComplexType> q_lm; |
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std::map<int,ComplexType> QBar_lm; |
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> |
RealType QSq_l; |
120 |
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RealType Q_l; |
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ComplexType W_l; |
122 |
> |
ComplexType W_l_hat; |
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> |
int nBonds, Nbonds; |
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> |
SphericalHarmonic sphericalHarmonic; |
125 |
> |
int i, j; |
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> |
// Make arrays for Wigner3jm |
127 |
> |
double* THRCOF = new double[mSize_]; |
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> |
// Variables for Wigner routine |
129 |
> |
double l_ = (double)lNumber_; |
130 |
> |
double m1Pass, m2Min, m2Max; |
131 |
> |
int error, m1, m2, m3; |
132 |
> |
|
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> |
// Set the l for the spherical harmonic, it doesn't change |
134 |
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sphericalHarmonic.setL(lNumber_); |
135 |
> |
|
136 |
> |
DumpReader reader(info_, dumpFilename_); |
137 |
> |
int nFrames = reader.getNFrames(); |
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> |
frameCounter_ = 0; |
139 |
> |
|
140 |
> |
for (int istep = 0; istep < nFrames; istep += step_) { |
141 |
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reader.readFrame(istep); |
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> |
frameCounter_++; |
143 |
> |
currentSnapshot_ = info_->getSnapshotManager()->getCurrentSnapshot(); |
144 |
> |
|
145 |
> |
if (evaluator_.isDynamic()) { |
146 |
> |
seleMan_.setSelectionSet(evaluator_.evaluate()); |
147 |
> |
} |
148 |
> |
|
149 |
> |
// update the positions of atoms which belong to the rigidbodies |
150 |
> |
|
151 |
> |
for (mol = info_->beginMolecule(mi); mol != NULL; |
152 |
> |
mol = info_->nextMolecule(mi)) { |
153 |
> |
for (rb = mol->beginRigidBody(rbIter); rb != NULL; |
154 |
> |
rb = mol->nextRigidBody(rbIter)) { |
155 |
> |
rb->updateAtoms(); |
156 |
> |
} |
157 |
> |
} |
158 |
> |
|
159 |
> |
// outer loop is over the selected StuntDoubles: |
160 |
> |
|
161 |
> |
for (sd = seleMan_.beginSelected(i); sd != NULL; |
162 |
> |
sd = seleMan_.nextSelected(i)) { |
163 |
> |
|
164 |
> |
myIndex = sd->getGlobalIndex(); |
165 |
> |
nBonds = 0; |
166 |
> |
for (int m = -lNumber_; m <= lNumber_; m++) { |
167 |
> |
q_lm[m] = 0.0; |
168 |
> |
} |
169 |
> |
|
170 |
> |
// inner loop is over all other atoms in the system: |
171 |
> |
|
172 |
> |
for (mol = info_->beginMolecule(mi); mol != NULL; |
173 |
> |
mol = info_->nextMolecule(mi)) { |
174 |
> |
for (atom = mol->beginAtom(ai); atom != NULL; |
175 |
> |
atom = mol->nextAtom(ai)) { |
176 |
> |
|
177 |
> |
if (atom->getGlobalIndex() != myIndex) { |
178 |
> |
|
179 |
> |
vec = sd->getPos() - atom->getPos(); |
180 |
> |
currentSnapshot_->wrapVector(vec); |
181 |
> |
|
182 |
> |
// Calculate "bonds" and build Q_lm(r) where |
183 |
> |
// Q_lm = Y_lm(theta(r),phi(r)) |
184 |
> |
// The spherical harmonics are wrt any arbitrary coordinate |
185 |
> |
// system, we choose standard spherical coordinates |
186 |
> |
|
187 |
> |
r = vec.length(); |
188 |
> |
|
189 |
> |
// Check to see if neighbor is in bond cutoff |
190 |
> |
|
191 |
> |
if (r < rCut_) { |
192 |
> |
costheta = vec.z() / r; |
193 |
> |
phi = atan2(vec.y(), vec.x()); |
194 |
> |
|
195 |
> |
for(int m = -lNumber_; m <= lNumber_; m++){ |
196 |
> |
sphericalHarmonic.setM(m); |
197 |
> |
q_lm[m] += sphericalHarmonic.getValueAt(costheta, phi); |
198 |
> |
} |
199 |
> |
nBonds++; |
200 |
> |
} |
201 |
> |
} |
202 |
> |
} |
203 |
> |
} |
204 |
> |
RealType ql = 0.0; |
205 |
> |
for(int m=-lNumber_; m<=lNumber_; m++) { |
206 |
> |
ql += norm(QBar_lm[m]); |
207 |
> |
} |
208 |
> |
ql *= 4.0*NumericConstant::PI/(RealType)(2*lNumber_+1); |
209 |
> |
collectHistogram(sqrt(ql)/(RealType)nBonds); |
210 |
> |
|
211 |
> |
Nbonds += nBonds; |
212 |
> |
for (int m=-lNumber_; m<=lNumber_; m++) { |
213 |
> |
QBar_lm[m] += q_lm[m]; |
214 |
> |
} |
215 |
> |
} |
216 |
> |
} |
217 |
> |
|
218 |
> |
// Normalize Qbar2 |
219 |
> |
for (int m = -lNumber_;m <= lNumber_; m++){ |
220 |
> |
QBar_lm[m] /= Nbonds; |
221 |
> |
} |
222 |
> |
|
223 |
> |
// Find second order invariant Q_l |
224 |
> |
|
225 |
> |
QSq_l = 0.0; |
226 |
> |
for (int m = -lNumber_; m <= lNumber_; m++){ |
227 |
> |
QSq_l += norm(QBar_lm[m]); |
228 |
> |
} |
229 |
> |
|
230 |
> |
std::cout << "qsl = " << QSq_l << "\n"; |
231 |
> |
Q_l = sqrt(QSq_l * 4.0 * NumericConstant::PI / (RealType)(2*lNumber_ + 1)); |
232 |
> |
|
233 |
> |
// Find Third Order Invariant W_l |
234 |
> |
|
235 |
> |
W_l = 0.0; |
236 |
> |
for (int m1 = -lNumber_; m1 <= lNumber_; m1++) { |
237 |
> |
// Zero work array |
238 |
> |
for (int ii = 0; ii < mSize_; ii++){ |
239 |
> |
THRCOF[ii] = 0.0; |
240 |
> |
} |
241 |
> |
// Get Wigner coefficients |
242 |
> |
m1Pass = (double)m1; |
243 |
> |
|
244 |
> |
Wigner3jm(&l_, &l_, &l_, |
245 |
> |
&m1Pass, &m2Min, &m2Max, |
246 |
> |
THRCOF, &mSize_, &error); |
247 |
> |
|
248 |
> |
for (int mmm = 0; mmm < (int)(m2Max - m2Min); mmm++) { |
249 |
> |
m2 = (int)floor(m2Min) + mmm; |
250 |
> |
m3 = -m1-m2; |
251 |
> |
W_l += THRCOF[mmm] * QBar_lm[m1] * QBar_lm[m2] * QBar_lm[m3]; |
252 |
> |
} |
253 |
> |
} |
254 |
> |
|
255 |
> |
W_l_hat = W_l / pow(QSq_l, 1.5); |
256 |
> |
|
257 |
> |
writeOrderParameter(Q_l, real(W_l_hat)); |
258 |
> |
} |
259 |
> |
|
260 |
> |
void BondOrderParameter::collectHistogram(RealType q_l) { |
261 |
> |
|
262 |
> |
if (q_l >= MinQ_ && q_l < MaxQ_) { |
263 |
> |
int qbin = (q_l - MinQ_) / deltaQ_; |
264 |
> |
Q_histogram_[qbin] += 1; |
265 |
> |
Qcount_++; |
266 |
> |
sumQ_ += q_l; |
267 |
> |
sumQ2_ += q_l * q_l; |
268 |
> |
} else { |
269 |
> |
sprintf( painCave.errMsg, |
270 |
> |
"q_l value outside reasonable range\n"); |
271 |
> |
painCave.severity = OOPSE_ERROR; |
272 |
> |
painCave.isFatal = 1; |
273 |
> |
simError(); |
274 |
> |
} |
275 |
> |
|
276 |
> |
} |
277 |
> |
|
278 |
> |
|
279 |
> |
void BondOrderParameter::writeOrderParameter(RealType ql, RealType Wlhat) { |
280 |
> |
|
281 |
> |
std::ofstream os(getOutputFileName().c_str()); |
282 |
> |
|
283 |
> |
if (os.is_open()) { |
284 |
> |
|
285 |
> |
os << "# Bond Order Parameters\n"; |
286 |
> |
os << "# selection: (" << selectionScript_ << ")\n"; |
287 |
> |
os << "# \n"; |
288 |
> |
os << "# <Q_" << lNumber_ << ">: " << ql << "\n"; |
289 |
> |
os << "# <W_" << lNumber_ << ">: " << Wlhat << "\n"; |
290 |
> |
// Normalize by number of frames and write it out: |
291 |
> |
for (int i = 0; i < Q_histogram_.size(); ++i) { |
292 |
> |
RealType Qval = MinQ_ + (i + 0.5) * deltaQ_; |
293 |
> |
osq << Qval << "\t" << (RealType)Q_histogram_[i] / (RealType)Qcount_ << "\n"; |
294 |
> |
} |
295 |
> |
|
296 |
> |
os.close(); |
297 |
> |
|
298 |
> |
} else { |
299 |
> |
sprintf(painCave.errMsg, "BondOrderParameter: unable to open %s\n", |
300 |
> |
getOutputFileName().c_str()); |
301 |
> |
painCave.isFatal = 1; |
302 |
> |
simError(); |
303 |
> |
} |
304 |
> |
} |
305 |
> |
} |