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tim |
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#include "Rattle.hpp" |
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#include <cmath> |
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#include "SimInfo.hpp" |
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//////////////////////////////////////////////////////////////////////////////// |
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//Implementation of DCRattleBFunctor |
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//////////////////////////////////////////////////////////////////////////////// |
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int DCRattleBFunctor::operator()(ConstraintAtom* consAtom1, ConstraintAtom* consAtom2){ |
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double posA[3], posB[3]; |
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double velA[3], velB[3]; |
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double vxab, vyab, vzab; |
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double rab[3]; |
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double rma, rmb; |
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double dx, dy, dz; |
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double rvab; |
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double gab; |
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consAtom1->getVel(velA); |
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consAtom2->getVel(velB); |
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vxab = velA[0] - velB[0]; |
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vyab = velA[1] - velB[1]; |
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vzab = velA[2] - velB[2]; |
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consAtom1->getPos(posA); |
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consAtom2->getPos(posB); |
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rab[0] = posA[0] - posB[0]; |
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rab[1] = posA[1] - posB[1]; |
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rab[2] = posA[2] - posB[2]; |
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info->wrapVector(rab); |
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rma = 1.0 / consAtom1->getMass(); |
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rmb = 1.0 / consAtom2->getMass(); |
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rvab = rab[0] * vxab + rab[1] * vyab + rab[2] * vzab; |
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gab = -rvab / ((rma + rmb) * curPair->getBondLength2()); |
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if (fabs(gab) > consTolerance){ |
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dx = rab[0] * gab; |
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dy = rab[1] * gab; |
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dz = rab[2] * gab; |
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velA[0] += rma * dx; |
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velA[1] += rma * dy; |
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velA[2] += rma * dz; |
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consAtom1->setVel(velA); |
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velB[0] -= rmb * dx; |
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velB[1] -= rmb * dy; |
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velB[2] -= rmb * dz; |
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consAtom2->setVel(velB); |
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} |
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return consSuccess; |
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} |
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int DCRattleBFunctor::operator()(ConstraintAtom* consAtom,ConstraintRigidBody* consRB){ |
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return consElemHandlerFail; |
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} |
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int DCRattleBFunctor::operator()(ConstraintRigidBody* consRB1, ConstraintRigidBody* consRB2){ |
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return consElemHandlerFail; |
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} |
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//////////////////////////////////////////////////////////////////////////////// |
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//Implementation of JCRattleBFunctor |
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//////////////////////////////////////////////////////////////////////////////// |
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int JCRattleBFunctor::operator()(ConstraintAtom* consAtom1, ConstraintAtom* consAtom2){ |
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return consElemHandlerFail; |
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} |
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int JCRattleBFunctor::operator()(ConstraintAtom* consAtom,ConstraintRigidBody* consRB){ |
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return consElemHandlerFail; |
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} |
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int JCRattleBFunctor::operator()(ConstraintRigidBody* consRB1, ConstraintRigidBody* consRB2){ |
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return consElemHandlerFail; |
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} |
