| 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). | 
| 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 | + | #include "config.h" | 
| 44 | + | #include <cmath> | 
| 45 | + |  | 
| 46 |  | #include "primitives/Inversion.hpp" | 
| 47 |  |  | 
| 48 |  | namespace OpenMD { | 
| 52 |  | atom1_(atom1), atom2_(atom2), atom3_(atom3), atom4_(atom4), | 
| 53 |  | inversionType_(it) { } | 
| 54 |  |  | 
| 55 | < | void Inversion::calcForce(RealType& angle) { | 
| 55 | > | void Inversion::calcForce(RealType& angle, bool doParticlePot) { | 
| 56 |  |  | 
| 57 |  | // In OpenMD's version of an inversion, the central atom | 
| 58 |  | // comes first.  However, to get the planarity in a typical cosine | 
| 113 |  | atom4_->addFrc(-f2); | 
| 114 |  | atom3_->addFrc(-f3); | 
| 115 |  |  | 
| 116 | < | atom1_->addParticlePot(potential_); | 
| 117 | < | atom2_->addParticlePot(potential_); | 
| 118 | < | atom3_->addParticlePot(potential_); | 
| 119 | < | atom4_->addParticlePot(potential_); | 
| 120 | < |  | 
| 116 | > | if (doParticlePot) { | 
| 117 | > | atom1_->addParticlePot(potential_); | 
| 118 | > | atom2_->addParticlePot(potential_); | 
| 119 | > | atom3_->addParticlePot(potential_); | 
| 120 | > | atom4_->addParticlePot(potential_); | 
| 121 | > | } | 
| 122 | > |  | 
| 123 |  | angle = acos(cos_phi) /M_PI * 180.0; | 
| 124 |  | } | 
| 125 |  |  |