| 1 | /* | 
| 2 | * Copyright (C) 2000-2004  Object Oriented Parallel Simulation Engine (OOPSE) project | 
| 3 | * | 
| 4 | * Contact: oopse@oopse.org | 
| 5 | * | 
| 6 | * This program is free software; you can redistribute it and/or | 
| 7 | * modify it under the terms of the GNU Lesser General Public License | 
| 8 | * as published by the Free Software Foundation; either version 2.1 | 
| 9 | * of the License, or (at your option) any later version. | 
| 10 | * All we ask is that proper credit is given for our work, which includes | 
| 11 | * - but is not limited to - adding the above copyright notice to the beginning | 
| 12 | * of your source code files, and to any copyright notice that you may distribute | 
| 13 | * with programs based on this work. | 
| 14 | * | 
| 15 | * This program is distributed in the hope that it will be useful, | 
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
| 18 | * GNU Lesser General Public License for more details. | 
| 19 | * | 
| 20 | * You should have received a copy of the GNU Lesser General Public License | 
| 21 | * along with this program; if not, write to the Free Software | 
| 22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. | 
| 23 | * | 
| 24 | */ | 
| 25 |  | 
| 26 | /** | 
| 27 | * @file Molecule.cpp | 
| 28 | * @author    tlin | 
| 29 | * @date  10/28/2004 | 
| 30 | * @version 1.0 | 
| 31 | */ | 
| 32 |  | 
| 33 | #include "primitives/Molecule.hpp" | 
| 34 | #include <algorithm> | 
| 35 |  | 
| 36 | namespace oopse { | 
| 37 |  | 
| 38 | Molecule::~Molecule() { | 
| 39 |  | 
| 40 | deleteVectorOfPointer(atoms_); | 
| 41 | deleteVectorOfPointer(bonds_); | 
| 42 | deleteVectorOfPointer(bends_); | 
| 43 | deleteVectorOfPointer(torsions_); | 
| 44 | deleteVectorOfPointer(rigidbodies_); | 
| 45 | deleteVectorOfPointer(cutoffGroups_); | 
| 46 |  | 
| 47 | integrableObjects_.clear(); | 
| 48 |  | 
| 49 | } | 
| 50 |  | 
| 51 | void Molecule::addAtom(Atom* atom) { | 
| 52 | if (atoms_.find(atom) == atoms_.end()) { | 
| 53 | atoms_.push_back(atom); | 
| 54 | } | 
| 55 | } | 
| 56 |  | 
| 57 | void Molecule::addBond(Bond* bond) { | 
| 58 | if (bonds_.find(bond) == bonds_.end()) { | 
| 59 | bonds_.push_back(bond); | 
| 60 | } | 
| 61 | } | 
| 62 |  | 
| 63 | void Molecule::addBend(Bend* bend) { | 
| 64 | if (bends_.find(bend) == bends_.end()) { | 
| 65 | bends_.push_back(bend); | 
| 66 | } | 
| 67 | } | 
| 68 |  | 
| 69 | void Molecule::addTorsion(Torsion* torsion) { | 
| 70 | if (torsions_.find(torsion) == torsions_.end()) { | 
| 71 | torsions_.push_back(torsion); | 
| 72 | } | 
| 73 | } | 
| 74 |  | 
| 75 | void Molecule::addRigidBody(RigidBody *rb) { | 
| 76 | if (rigidBodies_.find(bond) == bonds_.end()) { | 
| 77 | rigidBodies_.push_back(rb); | 
| 78 | } | 
| 79 | } | 
| 80 |  | 
| 81 | void Molecule::addCutoffGroup(CutoffGroup* cp) { | 
| 82 | if (cutoffGroups_.find(bond) == bonds_.end()) { | 
| 83 | cutoffGroups_.push_back(cp); | 
| 84 | } | 
| 85 |  | 
| 86 | } | 
| 87 |  | 
| 88 | void Molecule::complete() { | 
| 89 |  | 
| 90 | std::set<Atom*> allAtoms; | 
| 91 | allAtoms.insert(atoms_.begin(), atoms_.end()); | 
| 92 |  | 
| 93 | std::set<Atom*> rigidAtoms; | 
| 94 | RigidBody* rb; | 
| 95 | std::vector<RigidBody*> rbIter; | 
| 96 |  | 
| 97 |  | 
| 98 | for (rb = beginRigidBody(rbIter); rb != NULL; rb = nextRigidBody(rbIter)) { | 
| 99 | rigidAtoms.insert(rb->beginAtomIter(), rb->endAtomIter()); | 
| 100 | } | 
| 101 |  | 
| 102 | //find all free atoms (which do not belong to rigid bodies) | 
| 103 | //performs the "difference" operation from set theory,  the output range contains a copy of every | 
| 104 | //element that is contained in [allAtoms.begin(), allAtoms.end()) and not contained in | 
| 105 | //[rigidAtoms.begin(), rigidAtoms.end()). | 
| 106 | std::set_difference(allAtoms.begin(), allAtoms.end(), rigidAtoms.begin(), rigidAtoms.end(), | 
| 107 | std::back_inserter(integrableObjects_)); | 
| 108 |  | 
| 109 | if (integrableObjects_.size() != allAtoms.size() - rigidAtoms.size()) { | 
| 110 | //Some atoms in rigidAtoms are not in allAtoms, something must be wrong | 
| 111 | } | 
| 112 |  | 
| 113 | integrableObjects_.insert(integrableObjects_.end(), rigidBodies_.begin(), rigidBodies_.end()); | 
| 114 | } | 
| 115 |  | 
| 116 | Atom* Molecule::beginAtom(std::vector<Atom*>::iterator& i) { | 
| 117 | i = atoms_.begin(); | 
| 118 | return (i == atoms_.end()) ? NULL : *i; | 
| 119 | } | 
| 120 |  | 
| 121 | Atom* Molecule::nextAtom(std::vector<Atom*>::iterator& i) { | 
| 122 | ++i; | 
| 123 | return (i == atoms_.end()) ? NULL : *i; | 
| 124 | } | 
| 125 |  | 
| 126 | Bond* Molecule::beginBond(std::vector<Bond*>::iterator& i) { | 
| 127 | i = bonds_.begin(); | 
| 128 | return (i == bonds_.end()) ? NULL : *i; | 
| 129 | } | 
| 130 |  | 
| 131 | Bond* Molecule::nextBond(std::vector<Bond*>::iterator& i) { | 
| 132 | ++i; | 
| 133 | return (i == bonds_.end()) ? NULL : *i; | 
| 134 |  | 
| 135 | } | 
| 136 |  | 
| 137 |  | 
| 138 | Bend* Molecule::beginBend(std::vector<Bend*>::iterator& i) { | 
| 139 | i = bends_.begin(); | 
| 140 | return (i == bends_.end()) ? NULL : *i; | 
| 141 | } | 
| 142 |  | 
| 143 | Bend* Molecule::nextBend(std::vector<Bend*>::iterator& i) { | 
| 144 | ++i; | 
| 145 | return (i == bends_.end()) ? NULL : *i; | 
| 146 | } | 
| 147 |  | 
| 148 | Torsion* Molecule::beginTorsion(std::vector<Torsion*>::iterator& i) { | 
| 149 | i = torsions_.begin(); | 
| 150 | return (i == torsions_.end()) ? NULL : *i; | 
| 151 | } | 
| 152 |  | 
| 153 | Torsion* Molecule::nextTorsion(std::vector<Torsion*>::iterator& i) { | 
| 154 | ++i; | 
| 155 | return (i == torsions_.end()) ? NULL : *i; | 
| 156 | } | 
| 157 |  | 
| 158 | RigidBody* Molecule::beginRigidBody(std::vector<RigidBody*>::iterator& i) { | 
| 159 | i = rigidBodies_.begin(); | 
| 160 | return (i == rigidBodies_.end()) ? NULL : *i; | 
| 161 | } | 
| 162 |  | 
| 163 | RigidBody* Molecule::nextRigidBody(std::vector<RigidBody*>::iterator& i) { | 
| 164 | ++i; | 
| 165 | return (i == rigidBodies_.end()) ? NULL : *i; | 
| 166 | } | 
| 167 |  | 
| 168 | StuntDouble* Molecule::beginIntegrableObject(std::vector<StuntDouble*>::iterator& i) { | 
| 169 | i = integrableObjects_.begin(); | 
| 170 | return (i == integrableObjects_.end()) ? NULL : *i; | 
| 171 | } | 
| 172 |  | 
| 173 | StuntDouble* Molecule::nextIntegrableObject(std::vector<StuntDouble*>::iterator& i) { | 
| 174 | ++i; | 
| 175 | return (i == integrableObjects_.end()) ? NULL : *i; | 
| 176 | } | 
| 177 |  | 
| 178 | CutoffGroup* Molecule::beginCutoffGroup(std::vector<CutoffGroup*>::iterator& i) { | 
| 179 | i = cutoffGroups_.begin(); | 
| 180 | return (i == cutoffGroups_.end()) ? NULL : *i; | 
| 181 | } | 
| 182 |  | 
| 183 | CutoffGroup* Molecule::nextCutoffGroup(std::vector<CutoffGroup*>::iterator& i) { | 
| 184 | ++i; | 
| 185 | return (i == cutoffGroups_.end()) ? NULL : *i; | 
| 186 | } | 
| 187 |  | 
| 188 | void Molecule::calcForces() { | 
| 189 | RigidBody* rb; | 
| 190 | Bond* bond; | 
| 191 | Bend* bend; | 
| 192 | Torsion* torsion; | 
| 193 | std::vector<RigidBody*> rbIter; | 
| 194 | std::vector<Bond*> bondIter;; | 
| 195 | std::vector<Bend*> bendIter; | 
| 196 | std::vector<Torsion*> torsionIter; | 
| 197 |  | 
| 198 | for (rb = beginRigidBody(rbIter); rb != NULL; rb = nextRigidBody(rbIter)) { | 
| 199 | rb->updateAtoms(); | 
| 200 | } | 
| 201 |  | 
| 202 | for (bond = beginBond(bondIter); bond != NULL; bond = nextBond(bondIter)) { | 
| 203 | bond->calcForce(); | 
| 204 | } | 
| 205 |  | 
| 206 | for (bend = beginBend(bendIter); bend != NULL; bend = nextBend(bendIter)) { | 
| 207 | bend->calcForce(); | 
| 208 | } | 
| 209 |  | 
| 210 | for (torsion = beginTorsion(torsionIter); torsion != NULL; torsion = nextTorsion(torsionIter)) { | 
| 211 | torsion->calcForce(); | 
| 212 | } | 
| 213 |  | 
| 214 | } | 
| 215 |  | 
| 216 | double Molecule::getPotential() { | 
| 217 | //RigidBody* rb; | 
| 218 | Bond* bond; | 
| 219 | Bend* bend; | 
| 220 | Torsion* torsion; | 
| 221 | //std::vector<RigidBody*> rbIter; | 
| 222 | std::vector<Bond*> bondIter;; | 
| 223 | std::vector<Bend*> bendIter; | 
| 224 | std::vector<Torsion*> torsionIter; | 
| 225 |  | 
| 226 | double potential = 0; | 
| 227 |  | 
| 228 | //for (rb = beginRigidBody(rbIter); rb != NULL; rb = nextRigidBody(rbIter)) { | 
| 229 | //    rb->updateAtoms(); | 
| 230 | //} | 
| 231 |  | 
| 232 | for (bond = beginBond(bondIter); bond != NULL; bond = nextBond(bondIter)) { | 
| 233 | potential += bond->getPotential(); | 
| 234 | } | 
| 235 |  | 
| 236 | for (bend = beginBend(bendIter); bend != NULL; bend = nextBend(bendIter)) { | 
| 237 | potential += bend->getPotential(); | 
| 238 | } | 
| 239 |  | 
| 240 | for (torsion = beginTorsion(torsionIter); torsion != NULL; torsion = nextTorsion(torsionIter)) { | 
| 241 | potential += torsion->getPotential(); | 
| 242 | } | 
| 243 |  | 
| 244 | return potential; | 
| 245 | } | 
| 246 |  | 
| 247 | Vector3d Molecule::getCom() { | 
| 248 | StuntDouble* sd; | 
| 249 | std::vector<StuntDouble*>::iterator i; | 
| 250 | Vector3d com; | 
| 251 | double totalMass = 0; | 
| 252 | double mass; | 
| 253 |  | 
| 254 | for (sd = beginIntegrableObject(i); sd != NULL; sd = nextIntegrableObject(i)){ | 
| 255 | mass = sd->getMass(); | 
| 256 | totalMass += mass; | 
| 257 | com += sd->getPos() * mass; | 
| 258 | } | 
| 259 |  | 
| 260 | com /= totalMass; | 
| 261 |  | 
| 262 | return com; | 
| 263 | } | 
| 264 |  | 
| 265 | void Molecule::moveCom(const Vetor3d& delta) { | 
| 266 | StuntDouble* sd; | 
| 267 | std::vector<StuntDouble*>::iterator i; | 
| 268 |  | 
| 269 | for (sd = beginIntegrableObject(i); sd != NULL; sd = nextIntegrableObject(i)){ | 
| 270 | s->setPos(sd->getPos() + delta); | 
| 271 | } | 
| 272 |  | 
| 273 | } | 
| 274 |  | 
| 275 | Vector3d Molecule::getComVel() { | 
| 276 | StuntDouble* sd; | 
| 277 | std::vector<StuntDouble*>::iterator i; | 
| 278 | Vector3d velCom; | 
| 279 | double totalMass = 0; | 
| 280 | double mass; | 
| 281 |  | 
| 282 | for (sd = beginIntegrableObject(i); sd != NULL; sd = nextIntegrableObject(i)){ | 
| 283 | mass = sd->getMass(); | 
| 284 | totalMass += mass; | 
| 285 | velCom += sd->getVel() * mass; | 
| 286 | } | 
| 287 |  | 
| 288 | velCom /= totalMass; | 
| 289 |  | 
| 290 | return velCom; | 
| 291 | } | 
| 292 |  | 
| 293 | std::ostream& operator <<(std::ostream& o, const Molecule& mol) { | 
| 294 | o << std::endl; | 
| 295 | o << "Molecule " << mol.getGlobalIndex() << "has: " << std::endl; | 
| 296 | o << mol.getNAtoms() << " atoms" << std::endl; | 
| 297 | o << mol.getNBonds() << " bonds" << std::endl; | 
| 298 | o << mol.getNBends() << " bends" << std::endl; | 
| 299 | o << mol.getNTorsions() << " torsions" << std::endl; | 
| 300 | o << mol.getNRigidBodies() << " rigid bodies" << std::endl; | 
| 301 | o << mol.getNIntegrableObjects() << "integrable objects" << std::endl; | 
| 302 | o << mol.getNCutoffGroups() << "cutoff groups" << std::endl; | 
| 303 |  | 
| 304 | return o; | 
| 305 | } | 
| 306 |  | 
| 307 | }//end namespace oopse |