| 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 | /** | 
| 43 | * @file Molecule.cpp | 
| 44 | * @author    tlin | 
| 45 | * @date  10/28/2004 | 
| 46 | * @version 1.0 | 
| 47 | */ | 
| 48 |  | 
| 49 | #include <algorithm> | 
| 50 | #include <set> | 
| 51 |  | 
| 52 | #include "primitives/Molecule.hpp" | 
| 53 | #include "utils/MemoryUtils.hpp" | 
| 54 | #include "utils/simError.h" | 
| 55 |  | 
| 56 | namespace oopse { | 
| 57 | Molecule::Molecule(int stampId, int globalIndex, const std::string& molName) | 
| 58 | : stampId_(stampId), globalIndex_(globalIndex), moleculeName_(molName) { | 
| 59 |  | 
| 60 | } | 
| 61 |  | 
| 62 | Molecule::~Molecule() { | 
| 63 |  | 
| 64 | MemoryUtils::deleteVectorOfPointer(atoms_); | 
| 65 | MemoryUtils::deleteVectorOfPointer(bonds_); | 
| 66 | MemoryUtils::deleteVectorOfPointer(bends_); | 
| 67 | MemoryUtils::deleteVectorOfPointer(torsions_); | 
| 68 | MemoryUtils::deleteVectorOfPointer(rigidBodies_); | 
| 69 | MemoryUtils::deleteVectorOfPointer(cutoffGroups_); | 
| 70 | MemoryUtils::deleteVectorOfPointer(constraintPairs_); | 
| 71 | MemoryUtils::deleteVectorOfPointer(constraintElems_); | 
| 72 | //integrableObjects_ don't own the objects | 
| 73 | integrableObjects_.clear(); | 
| 74 |  | 
| 75 | } | 
| 76 |  | 
| 77 | void Molecule::addAtom(Atom* atom) { | 
| 78 | if (std::find(atoms_.begin(), atoms_.end(), atom) == atoms_.end()) { | 
| 79 | atoms_.push_back(atom); | 
| 80 | } | 
| 81 | } | 
| 82 |  | 
| 83 | void Molecule::addBond(Bond* bond) { | 
| 84 | if (std::find(bonds_.begin(), bonds_.end(), bond) == bonds_.end()) { | 
| 85 | bonds_.push_back(bond); | 
| 86 | } | 
| 87 | } | 
| 88 |  | 
| 89 | void Molecule::addBend(Bend* bend) { | 
| 90 | if (std::find(bends_.begin(), bends_.end(), bend) == bends_.end()) { | 
| 91 | bends_.push_back(bend); | 
| 92 | } | 
| 93 | } | 
| 94 |  | 
| 95 | void Molecule::addTorsion(Torsion* torsion) { | 
| 96 | if (std::find(torsions_.begin(), torsions_.end(), torsion) == torsions_.end()) { | 
| 97 | torsions_.push_back(torsion); | 
| 98 | } | 
| 99 | } | 
| 100 |  | 
| 101 | void Molecule::addRigidBody(RigidBody *rb) { | 
| 102 | if (std::find(rigidBodies_.begin(), rigidBodies_.end(), rb) == rigidBodies_.end()) { | 
| 103 | rigidBodies_.push_back(rb); | 
| 104 | } | 
| 105 | } | 
| 106 |  | 
| 107 | void Molecule::addCutoffGroup(CutoffGroup* cp) { | 
| 108 | if (std::find(cutoffGroups_.begin(), cutoffGroups_.end(), cp) == cutoffGroups_.end()) { | 
| 109 | cutoffGroups_.push_back(cp); | 
| 110 | } | 
| 111 |  | 
| 112 | } | 
| 113 |  | 
| 114 | void Molecule::addConstraintPair(ConstraintPair* cp) { | 
| 115 | if (std::find(constraintPairs_.begin(), constraintPairs_.end(), cp) == constraintPairs_.end()) { | 
| 116 | constraintPairs_.push_back(cp); | 
| 117 | } | 
| 118 |  | 
| 119 | } | 
| 120 |  | 
| 121 | void Molecule::addConstraintElem(ConstraintElem* cp) { | 
| 122 | if (std::find(constraintElems_.begin(), constraintElems_.end(), cp) == constraintElems_.end()) { | 
| 123 | constraintElems_.push_back(cp); | 
| 124 | } | 
| 125 |  | 
| 126 | } | 
| 127 |  | 
| 128 | void Molecule::complete() { | 
| 129 |  | 
| 130 | std::set<Atom*> rigidAtoms; | 
| 131 | RigidBody* rb; | 
| 132 | std::vector<RigidBody*>::iterator rbIter; | 
| 133 |  | 
| 134 |  | 
| 135 | for (rb = beginRigidBody(rbIter); rb != NULL; rb = nextRigidBody(rbIter)) { | 
| 136 | rigidAtoms.insert(rb->getBeginAtomIter(), rb->getEndAtomIter()); | 
| 137 | } | 
| 138 |  | 
| 139 | Atom* atom; | 
| 140 | AtomIterator ai; | 
| 141 | for (atom = beginAtom(ai); atom != NULL; atom = nextAtom(ai)) { | 
| 142 |  | 
| 143 | if (rigidAtoms.find(*ai) == rigidAtoms.end()) { | 
| 144 | //if an atom does not belong to a rigid body, it is an integrable object | 
| 145 | integrableObjects_.push_back(*ai); | 
| 146 | } | 
| 147 | } | 
| 148 |  | 
| 149 | //find all free atoms (which do not belong to rigid bodies) | 
| 150 | //performs the "difference" operation from set theory,  the output range contains a copy of every | 
| 151 | //element that is contained in [allAtoms.begin(), allAtoms.end()) and not contained in | 
| 152 | //[rigidAtoms.begin(), rigidAtoms.end()). | 
| 153 | //std::set_difference(allAtoms.begin(), allAtoms.end(), rigidAtoms.begin(), rigidAtoms.end(), | 
| 154 | //                        std::back_inserter(integrableObjects_)); | 
| 155 |  | 
| 156 | //if (integrableObjects_.size() != allAtoms.size() - rigidAtoms.size()) { | 
| 157 | //    //Some atoms in rigidAtoms are not in allAtoms, something must be wrong | 
| 158 | //    sprintf(painCave.errMsg, "Atoms in rigidbody are not in the atom list of the same molecule"); | 
| 159 | // | 
| 160 | //    painCave.isFatal = 1; | 
| 161 | //    simError(); | 
| 162 | //} | 
| 163 |  | 
| 164 | integrableObjects_.insert(integrableObjects_.end(), rigidBodies_.begin(), rigidBodies_.end()); | 
| 165 | } | 
| 166 |  | 
| 167 | double Molecule::getMass() { | 
| 168 | StuntDouble* sd; | 
| 169 | std::vector<StuntDouble*>::iterator i; | 
| 170 | double mass = 0.0; | 
| 171 |  | 
| 172 | for (sd = beginIntegrableObject(i); sd != NULL; sd = nextIntegrableObject(i)){ | 
| 173 | mass += sd->getMass(); | 
| 174 | } | 
| 175 |  | 
| 176 | return mass; | 
| 177 |  | 
| 178 | } | 
| 179 |  | 
| 180 | Vector3d Molecule::getCom() { | 
| 181 | StuntDouble* sd; | 
| 182 | std::vector<StuntDouble*>::iterator i; | 
| 183 | Vector3d com; | 
| 184 | double totalMass = 0; | 
| 185 | double mass; | 
| 186 |  | 
| 187 | for (sd = beginIntegrableObject(i); sd != NULL; sd = nextIntegrableObject(i)){ | 
| 188 | mass = sd->getMass(); | 
| 189 | totalMass += mass; | 
| 190 | com += sd->getPos() * mass; | 
| 191 | } | 
| 192 |  | 
| 193 | com /= totalMass; | 
| 194 |  | 
| 195 | return com; | 
| 196 | } | 
| 197 |  | 
| 198 | void Molecule::moveCom(const Vector3d& delta) { | 
| 199 | StuntDouble* sd; | 
| 200 | std::vector<StuntDouble*>::iterator i; | 
| 201 |  | 
| 202 | for (sd = beginIntegrableObject(i); sd != NULL; sd = nextIntegrableObject(i)){ | 
| 203 | sd->setPos(sd->getPos() + delta); | 
| 204 | } | 
| 205 |  | 
| 206 | } | 
| 207 |  | 
| 208 | Vector3d Molecule::getComVel() { | 
| 209 | StuntDouble* sd; | 
| 210 | std::vector<StuntDouble*>::iterator i; | 
| 211 | Vector3d velCom; | 
| 212 | double totalMass = 0; | 
| 213 | double mass; | 
| 214 |  | 
| 215 | for (sd = beginIntegrableObject(i); sd != NULL; sd = nextIntegrableObject(i)){ | 
| 216 | mass = sd->getMass(); | 
| 217 | totalMass += mass; | 
| 218 | velCom += sd->getVel() * mass; | 
| 219 | } | 
| 220 |  | 
| 221 | velCom /= totalMass; | 
| 222 |  | 
| 223 | return velCom; | 
| 224 | } | 
| 225 |  | 
| 226 | double Molecule::getPotential() { | 
| 227 |  | 
| 228 | Bond* bond; | 
| 229 | Bend* bend; | 
| 230 | Torsion* torsion; | 
| 231 | Molecule::BondIterator bondIter;; | 
| 232 | Molecule::BendIterator  bendIter; | 
| 233 | Molecule::TorsionIterator  torsionIter; | 
| 234 |  | 
| 235 | double potential = 0.0; | 
| 236 |  | 
| 237 | for (bond = beginBond(bondIter); bond != NULL; bond = nextBond(bondIter)) { | 
| 238 | potential += bond->getPotential(); | 
| 239 | } | 
| 240 |  | 
| 241 | for (bend = beginBend(bendIter); bend != NULL; bend = nextBend(bendIter)) { | 
| 242 | potential += bend->getPotential(); | 
| 243 | } | 
| 244 |  | 
| 245 | for (torsion = beginTorsion(torsionIter); torsion != NULL; torsion = nextTorsion(torsionIter)) { | 
| 246 | potential += torsion->getPotential(); | 
| 247 | } | 
| 248 |  | 
| 249 | return potential; | 
| 250 |  | 
| 251 | } | 
| 252 |  | 
| 253 | std::ostream& operator <<(std::ostream& o, Molecule& mol) { | 
| 254 | o << std::endl; | 
| 255 | o << "Molecule " << mol.getGlobalIndex() << "has: " << std::endl; | 
| 256 | o << mol.getNAtoms() << " atoms" << std::endl; | 
| 257 | o << mol.getNBonds() << " bonds" << std::endl; | 
| 258 | o << mol.getNBends() << " bends" << std::endl; | 
| 259 | o << mol.getNTorsions() << " torsions" << std::endl; | 
| 260 | o << mol.getNRigidBodies() << " rigid bodies" << std::endl; | 
| 261 | o << mol.getNIntegrableObjects() << "integrable objects" << std::endl; | 
| 262 | o << mol.getNCutoffGroups() << "cutoff groups" << std::endl; | 
| 263 | o << mol.getNConstraintPairs() << "constraint pairs" << std::endl; | 
| 264 | return o; | 
| 265 | } | 
| 266 |  | 
| 267 | }//end namespace oopse |