--- trunk/src/applications/staticProps/P2OrderParameter.cpp 2011/03/15 20:55:16 1543 +++ trunk/src/applications/staticProps/P2OrderParameter.cpp 2011/05/11 16:32:48 1558 @@ -213,8 +213,7 @@ namespace OpenMD { Vector3d vec = j->first->getPos() - j->second->getPos(); if (usePeriodicBoundaryConditions_) currentSnapshot_->wrapVector(vec); - vec.normalize(); - + vec.normalize(); angle += acos(dot(vec, director)) ; } angle = angle / (sdPairs_.size() * NumericConstant::PI) * 180.0;