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* [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005). |
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* [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006). |
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* [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008). |
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* [4] Vardeman & Gezelter, in progress (2009). |
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* [4] Kuang & Gezelter, J. Chem. Phys. 133, 164101 (2010). |
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* [5] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011). |
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*/ |
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#include "restraints/MolecularRestraint.hpp" |
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namespace OpenMD { |
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void MolecularRestraint::calcForce(std::vector<Vector3d> struc, |
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Vector3d molCom){ |
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Quat4d quat = A.toQuaternion(); |
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quat.getTwistSwingAxisAngle(twistAngle, swingAngle, swingAxis); |
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RealType tw, sx, sy, ttw, swingX, swingY; |
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quat.toTwistSwing(tw, sx, sy); |
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quat.toSwingTwist(swingX, swingY, ttw); |
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quat.toSwingTwist(swingX, swingY, twistAngle); |
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// std::cerr << eularAngles << "\t[" << twistAngle << "," << swingAngle << |
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// "]\t[" << tw << "," << sx << "," << sy << "]\t[" << ttw << |
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// "," << ssx << "," << ssy << "]" << std::endl; |
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|
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RealType dVdtwist, dVdswing, dVdswingX, dVdswingY; |
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RealType dTwist, dSwing, dSwingX, dSwingY; |
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RealType p; |