| 1 | < | #include <iostream> | 
| 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 |  |  | 
| 3 | – | using namespace std; | 
| 4 | – |  | 
| 5 | – | #include "utils/simError.h" | 
| 42 |  | #include "primitives/Atom.hpp" | 
| 43 | < |  | 
| 8 | < | Atom::Atom(int theIndex, SimState* theConfig) { | 
| 9 | < |  | 
| 10 | < | objType = OT_ATOM; | 
| 11 | < | myConfig = theConfig; | 
| 12 | < | hasCoords = false; | 
| 13 | < |  | 
| 14 | < | has_dipole = 0; | 
| 15 | < | has_charge = 0; | 
| 43 | > | namespace OpenMD { | 
| 44 |  |  | 
| 45 | < | index = theIndex; | 
| 46 | < | offset = 0; | 
| 47 | < | offsetX = offset; | 
| 20 | < | offsetY = offset+1; | 
| 21 | < | offsetZ = offset+2; | 
| 22 | < |  | 
| 23 | < | Axx = 0; | 
| 24 | < | Axy = Axx+1; | 
| 25 | < | Axz = Axx+2; | 
| 26 | < |  | 
| 27 | < | Ayx = Axx+3; | 
| 28 | < | Ayy = Axx+4; | 
| 29 | < | Ayz = Axx+5; | 
| 30 | < |  | 
| 31 | < | Azx = Axx+6; | 
| 32 | < | Azy = Axx+7; | 
| 33 | < | Azz = Axx+8; | 
| 34 | < | } | 
| 35 | < |  | 
| 36 | < | void Atom::setIndex(int theIndex) { | 
| 37 | < | index = theIndex; | 
| 38 | < | } | 
| 39 | < |  | 
| 40 | < | void Atom::setCoords(void){ | 
| 41 | < |  | 
| 42 | < | if( myConfig->isAllocated() ){ | 
| 43 | < |  | 
| 44 | < | myConfig->getAtomPointers( index, | 
| 45 | < | &pos, | 
| 46 | < | &vel, | 
| 47 | < | &frc, | 
| 48 | < | &trq, | 
| 49 | < | &Amat, | 
| 50 | < | &mu, | 
| 51 | < | &ul); | 
| 45 | > | Atom::Atom(AtomType* at) : StuntDouble(otAtom, &Snapshot::atomData), | 
| 46 | > | atomType_(at) { | 
| 47 | > | mass_ = at->getMass(); | 
| 48 |  | } | 
| 53 | – | else{ | 
| 54 | – | sprintf( painCave.errMsg, | 
| 55 | – | "Attempted to set Atom %d  coordinates with an unallocated " | 
| 56 | – | "SimState object.\n", index ); | 
| 57 | – | painCave.isFatal = 1; | 
| 58 | – | simError(); | 
| 59 | – | } | 
| 60 | – |  | 
| 61 | – | hasCoords = true; | 
| 62 | – |  | 
| 63 | – | } | 
| 49 |  |  | 
| 50 | < | void Atom::getPos( double theP[3] ){ | 
| 50 | > | Mat3x3d Atom::getI() { | 
| 51 | > | return Mat3x3d::identity(); | 
| 52 | > | } | 
| 53 |  |  | 
| 54 | < | if( hasCoords ){ | 
| 55 | < | theP[0] = pos[offsetX]; | 
| 56 | < | theP[1] = pos[offsetY]; | 
| 70 | < | theP[2] = pos[offsetZ]; | 
| 71 | < | } | 
| 72 | < | else{ | 
| 73 | < |  | 
| 74 | < | sprintf( painCave.errMsg, | 
| 75 | < | "Attempt to get Pos for atom %d before coords set.\n", | 
| 76 | < | index ); | 
| 77 | < | painCave.isFatal = 1; | 
| 78 | < | simError(); | 
| 79 | < | } | 
| 80 | < | } | 
| 81 | < |  | 
| 82 | < | void Atom::setPos( double theP[3] ){ | 
| 83 | < |  | 
| 84 | < | if( hasCoords ){ | 
| 85 | < | pos[offsetX] = theP[0]; | 
| 86 | < | pos[offsetY] = theP[1]; | 
| 87 | < | pos[offsetZ] = theP[2]; | 
| 88 | < | } | 
| 89 | < | else{ | 
| 90 | < |  | 
| 91 | < | sprintf( painCave.errMsg, | 
| 92 | < | "Attempt to set Pos for atom %d before coords set.\n", | 
| 93 | < | index ); | 
| 94 | < | painCave.isFatal = 1; | 
| 95 | < | simError(); | 
| 96 | < | } | 
| 97 | < | } | 
| 98 | < |  | 
| 99 | < | void Atom::getVel( double theV[3] ){ | 
| 100 | < |  | 
| 101 | < | if( hasCoords ){ | 
| 102 | < | theV[0] = vel[offsetX]; | 
| 103 | < | theV[1] = vel[offsetY]; | 
| 104 | < | theV[2] = vel[offsetZ]; | 
| 105 | < | } | 
| 106 | < | else{ | 
| 54 | > | std::vector<RealType> Atom::getGrad() { | 
| 55 | > | std::vector<RealType> grad(3); | 
| 56 | > | Vector3d force= getFrc(); | 
| 57 |  |  | 
| 58 | < | sprintf( painCave.errMsg, | 
| 59 | < | "Attempt to get vel for atom %d before coords set.\n", | 
| 60 | < | index ); | 
| 111 | < | painCave.isFatal = 1; | 
| 112 | < | simError(); | 
| 113 | < | } | 
| 114 | < |  | 
| 115 | < | } | 
| 116 | < |  | 
| 117 | < | void Atom::setVel( double theV[3] ){ | 
| 118 | < |  | 
| 119 | < | if( hasCoords ){ | 
| 120 | < | vel[offsetX] = theV[0]; | 
| 121 | < | vel[offsetY] = theV[1]; | 
| 122 | < | vel[offsetZ] = theV[2]; | 
| 123 | < | } | 
| 124 | < | else{ | 
| 58 | > | grad[0] = -force[0]; | 
| 59 | > | grad[1] = -force[1]; | 
| 60 | > | grad[2] = -force[2]; | 
| 61 |  |  | 
| 62 | < | sprintf( painCave.errMsg, | 
| 63 | < | "Attempt to set vel for atom %d before coords set.\n", | 
| 128 | < | index ); | 
| 129 | < | painCave.isFatal = 1; | 
| 130 | < | simError(); | 
| 131 | < | } | 
| 132 | < | } | 
| 133 | < |  | 
| 134 | < | void Atom::getFrc( double theF[3] ){ | 
| 62 | > | return grad; | 
| 63 | > | } | 
| 64 |  |  | 
| 65 | < | if( hasCoords ){ | 
| 66 | < | theF[0] = frc[offsetX]; | 
| 67 | < | theF[1] = frc[offsetY]; | 
| 139 | < | theF[2] = frc[offsetZ]; | 
| 140 | < | } | 
| 141 | < | else{ | 
| 142 | < |  | 
| 143 | < | sprintf( painCave.errMsg, | 
| 144 | < | "Attempt to get frc for atom %d before coords set.\n", | 
| 145 | < | index ); | 
| 146 | < | painCave.isFatal = 1; | 
| 147 | < | simError(); | 
| 148 | < | } | 
| 65 | > | void Atom::accept(BaseVisitor* v) { | 
| 66 | > | v->visit(this); | 
| 67 | > | } | 
| 68 |  | } | 
| 150 | – |  | 
| 151 | – | void Atom::addFrc( double theF[3] ){ | 
| 152 | – |  | 
| 153 | – | if( hasCoords ){ | 
| 154 | – | frc[offsetX] += theF[0]; | 
| 155 | – | frc[offsetY] += theF[1]; | 
| 156 | – | frc[offsetZ] += theF[2]; | 
| 157 | – | } | 
| 158 | – | else{ | 
| 159 | – |  | 
| 160 | – | sprintf( painCave.errMsg, | 
| 161 | – | "Attempt to add frc for atom %d before coords set.\n", | 
| 162 | – | index ); | 
| 163 | – | painCave.isFatal = 1; | 
| 164 | – | simError(); | 
| 165 | – | } | 
| 166 | – | } | 
| 167 | – |  | 
| 168 | – |  | 
| 169 | – | void Atom::zeroForces( void ){ | 
| 170 | – |  | 
| 171 | – | if( hasCoords ){ | 
| 172 | – | frc[offsetX] = 0.0; | 
| 173 | – | frc[offsetY] = 0.0; | 
| 174 | – | frc[offsetZ] = 0.0; | 
| 175 | – | } | 
| 176 | – | else{ | 
| 177 | – |  | 
| 178 | – | sprintf( painCave.errMsg, | 
| 179 | – | "Attempt to zero frc for atom %d before coords set.\n", | 
| 180 | – | index ); | 
| 181 | – | painCave.isFatal = 1; | 
| 182 | – | simError(); | 
| 183 | – | } | 
| 184 | – | } | 
| 185 | – |  |