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|---|---|---|---|
| 1 | /////////////////////////////////////////////////////////////////////////////// | ||
| 2 | // BSD 3-Clause License | ||
| 3 | // | ||
| 4 | // Copyright (C) 2020-2025, LAAS-CNRS, University of Edinburgh, | ||
| 5 | // Heriot-Watt University | ||
| 6 | // Copyright note valid unless otherwise stated in individual files. | ||
| 7 | // All rights reserved. | ||
| 8 | /////////////////////////////////////////////////////////////////////////////// | ||
| 9 | |||
| 10 | namespace crocoddyl { | ||
| 11 | |||
| 12 | template <typename Scalar> | ||
| 13 | ✗ | ContactModel1DTpl<Scalar>::ContactModel1DTpl( | |
| 14 | std::shared_ptr<StateMultibody> state, const pinocchio::FrameIndex id, | ||
| 15 | const Scalar xref, const pinocchio::ReferenceFrame type, | ||
| 16 | const Matrix3s& rotation, const std::size_t nu, const Vector2s& gains) | ||
| 17 | ✗ | : Base(state, type, 1, nu), xref_(xref), Raxis_(rotation), gains_(gains) { | |
| 18 | ✗ | id_ = id; | |
| 19 | ✗ | } | |
| 20 | |||
| 21 | template <typename Scalar> | ||
| 22 | ✗ | ContactModel1DTpl<Scalar>::ContactModel1DTpl( | |
| 23 | std::shared_ptr<StateMultibody> state, const pinocchio::FrameIndex id, | ||
| 24 | const Scalar xref, const pinocchio::ReferenceFrame type, | ||
| 25 | const Vector2s& gains) | ||
| 26 | ✗ | : Base(state, type, 1), xref_(xref), gains_(gains) { | |
| 27 | ✗ | id_ = id; | |
| 28 | ✗ | Raxis_ = Matrix3s::Identity(); | |
| 29 | ✗ | } | |
| 30 | |||
| 31 | #pragma GCC diagnostic push // TODO: Remove once the deprecated FrameXX has | ||
| 32 | // been removed in a future release | ||
| 33 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations" | ||
| 34 | |||
| 35 | template <typename Scalar> | ||
| 36 | ✗ | ContactModel1DTpl<Scalar>::ContactModel1DTpl( | |
| 37 | std::shared_ptr<StateMultibody> state, const pinocchio::FrameIndex id, | ||
| 38 | const Scalar xref, const std::size_t nu, const Vector2s& gains) | ||
| 39 | : Base(state, pinocchio::ReferenceFrame::LOCAL, 1, nu), | ||
| 40 | ✗ | xref_(xref), | |
| 41 | ✗ | gains_(gains) { | |
| 42 | ✗ | id_ = id; | |
| 43 | ✗ | Raxis_ = Matrix3s::Identity(); | |
| 44 | ✗ | std::cerr << "Deprecated: Use constructor that passes the type of contact, " | |
| 45 | "this assumes is pinocchio::LOCAL." | ||
| 46 | ✗ | << std::endl; | |
| 47 | ✗ | } | |
| 48 | |||
| 49 | template <typename Scalar> | ||
| 50 | ✗ | ContactModel1DTpl<Scalar>::ContactModel1DTpl( | |
| 51 | std::shared_ptr<StateMultibody> state, const pinocchio::FrameIndex id, | ||
| 52 | const Scalar xref, const Vector2s& gains) | ||
| 53 | : Base(state, pinocchio::ReferenceFrame::LOCAL, 1), | ||
| 54 | ✗ | xref_(xref), | |
| 55 | ✗ | gains_(gains) { | |
| 56 | ✗ | id_ = id; | |
| 57 | ✗ | Raxis_ = Matrix3s::Identity(); | |
| 58 | ✗ | std::cerr << "Deprecated: Use constructor that passes the type of contact, " | |
| 59 | "this assumes is pinocchio::LOCAL." | ||
| 60 | ✗ | << std::endl; | |
| 61 | ✗ | } | |
| 62 | |||
| 63 | #pragma GCC diagnostic pop | ||
| 64 | |||
| 65 | template <typename Scalar> | ||
| 66 | ✗ | void ContactModel1DTpl<Scalar>::calc( | |
| 67 | const std::shared_ptr<ContactDataAbstract>& data, | ||
| 68 | const Eigen::Ref<const VectorXs>&) { | ||
| 69 | ✗ | Data* d = static_cast<Data*>(data.get()); | |
| 70 | ✗ | pinocchio::updateFramePlacement(*state_->get_pinocchio().get(), *d->pinocchio, | |
| 71 | id_); | ||
| 72 | ✗ | pinocchio::getFrameJacobian(*state_->get_pinocchio().get(), *d->pinocchio, | |
| 73 | ✗ | id_, pinocchio::LOCAL, d->fJf); | |
| 74 | ✗ | d->v = pinocchio::getFrameVelocity(*state_->get_pinocchio().get(), | |
| 75 | ✗ | *d->pinocchio, id_); | |
| 76 | |||
| 77 | ✗ | d->a0_local = | |
| 78 | pinocchio::getFrameClassicalAcceleration( | ||
| 79 | ✗ | *state_->get_pinocchio().get(), *d->pinocchio, id_, pinocchio::LOCAL) | |
| 80 | ✗ | .linear(); | |
| 81 | |||
| 82 | ✗ | const Eigen::Ref<const Matrix3s> oRf = d->pinocchio->oMf[id_].rotation(); | |
| 83 | ✗ | if (gains_[0] != Scalar(0.)) { | |
| 84 | ✗ | d->dp = d->pinocchio->oMf[id_].translation() - | |
| 85 | ✗ | (xref_ * Raxis_ * Vector3s::UnitZ()); | |
| 86 | ✗ | d->dp_local.noalias() = oRf.transpose() * d->dp; | |
| 87 | ✗ | d->a0_local += gains_[0] * d->dp_local; | |
| 88 | } | ||
| 89 | ✗ | if (gains_[1] != Scalar(0.)) { | |
| 90 | ✗ | d->a0_local += gains_[1] * d->v.linear(); | |
| 91 | } | ||
| 92 | ✗ | switch (type_) { | |
| 93 | ✗ | case pinocchio::ReferenceFrame::LOCAL: | |
| 94 | ✗ | d->Jc.row(0) = (Raxis_ * d->fJf.template topRows<3>()).row(2); | |
| 95 | ✗ | d->a0[0] = (Raxis_ * d->a0_local)[2]; | |
| 96 | ✗ | break; | |
| 97 | ✗ | case pinocchio::ReferenceFrame::WORLD: | |
| 98 | case pinocchio::ReferenceFrame::LOCAL_WORLD_ALIGNED: | ||
| 99 | ✗ | d->Jc.row(0) = (Raxis_ * oRf * d->fJf.template topRows<3>()).row(2); | |
| 100 | ✗ | d->a0[0] = (Raxis_ * oRf * d->a0_local)[2]; | |
| 101 | ✗ | break; | |
| 102 | } | ||
| 103 | ✗ | } | |
| 104 | |||
| 105 | template <typename Scalar> | ||
| 106 | ✗ | void ContactModel1DTpl<Scalar>::calcDiff( | |
| 107 | const std::shared_ptr<ContactDataAbstract>& data, | ||
| 108 | const Eigen::Ref<const VectorXs>&) { | ||
| 109 | ✗ | Data* d = static_cast<Data*>(data.get()); | |
| 110 | ✗ | const pinocchio::JointIndex joint = | |
| 111 | ✗ | state_->get_pinocchio()->frames[d->frame].parentJoint; | |
| 112 | ✗ | pinocchio::getJointAccelerationDerivatives( | |
| 113 | ✗ | *state_->get_pinocchio().get(), *d->pinocchio, joint, pinocchio::LOCAL, | |
| 114 | ✗ | d->v_partial_dq, d->a_partial_dq, d->a_partial_dv, d->a_partial_da); | |
| 115 | ✗ | const std::size_t nv = state_->get_nv(); | |
| 116 | ✗ | pinocchio::skew(d->v.linear(), d->vv_skew); | |
| 117 | ✗ | pinocchio::skew(d->v.angular(), d->vw_skew); | |
| 118 | ✗ | d->fXjdv_dq.noalias() = d->fXj * d->v_partial_dq; | |
| 119 | ✗ | d->fXjda_dq.noalias() = d->fXj * d->a_partial_dq; | |
| 120 | ✗ | d->fXjda_dv.noalias() = d->fXj * d->a_partial_dv; | |
| 121 | ✗ | d->da0_local_dx.leftCols(nv) = d->fXjda_dq.template topRows<3>(); | |
| 122 | ✗ | d->da0_local_dx.leftCols(nv).noalias() += | |
| 123 | ✗ | d->vw_skew * d->fXjdv_dq.template topRows<3>(); | |
| 124 | ✗ | d->da0_local_dx.leftCols(nv).noalias() -= | |
| 125 | ✗ | d->vv_skew * d->fXjdv_dq.template bottomRows<3>(); | |
| 126 | ✗ | d->da0_local_dx.rightCols(nv) = d->fXjda_dv.template topRows<3>(); | |
| 127 | ✗ | d->da0_local_dx.rightCols(nv).noalias() += | |
| 128 | ✗ | d->vw_skew * d->fJf.template topRows<3>(); | |
| 129 | ✗ | d->da0_local_dx.rightCols(nv).noalias() -= | |
| 130 | ✗ | d->vv_skew * d->fJf.template bottomRows<3>(); | |
| 131 | ✗ | const Eigen::Ref<const Matrix3s> oRf = d->pinocchio->oMf[id_].rotation(); | |
| 132 | |||
| 133 | ✗ | if (gains_[0] != Scalar(0.)) { | |
| 134 | ✗ | pinocchio::skew(d->dp_local, d->dp_skew); | |
| 135 | ✗ | d->da0_local_dx.leftCols(nv).noalias() += | |
| 136 | ✗ | gains_[0] * d->dp_skew * d->fJf.template bottomRows<3>(); | |
| 137 | ✗ | d->da0_local_dx.leftCols(nv).noalias() += | |
| 138 | ✗ | gains_[0] * d->fJf.template topRows<3>(); | |
| 139 | } | ||
| 140 | ✗ | if (gains_[1] != Scalar(0.)) { | |
| 141 | ✗ | d->da0_local_dx.leftCols(nv).noalias() += | |
| 142 | ✗ | gains_[1] * d->fXjdv_dq.template topRows<3>(); | |
| 143 | ✗ | d->da0_local_dx.rightCols(nv).noalias() += | |
| 144 | ✗ | gains_[1] * d->fJf.template topRows<3>(); | |
| 145 | } | ||
| 146 | ✗ | switch (type_) { | |
| 147 | ✗ | case pinocchio::ReferenceFrame::LOCAL: | |
| 148 | ✗ | d->da0_dx.row(0) = (Raxis_ * d->da0_local_dx).row(2); | |
| 149 | ✗ | break; | |
| 150 | ✗ | case pinocchio::ReferenceFrame::WORLD: | |
| 151 | case pinocchio::ReferenceFrame::LOCAL_WORLD_ALIGNED: | ||
| 152 | // Recalculate the constrained accelerations after imposing contact | ||
| 153 | // constraints. This is necessary for the forward-dynamics case. | ||
| 154 | ✗ | d->a0_local = pinocchio::getFrameClassicalAcceleration( | |
| 155 | ✗ | *state_->get_pinocchio().get(), *d->pinocchio, id_, | |
| 156 | pinocchio::LOCAL) | ||
| 157 | ✗ | .linear(); | |
| 158 | ✗ | if (gains_[0] != Scalar(0.)) { | |
| 159 | ✗ | d->a0_local += gains_[0] * d->dp_local; | |
| 160 | } | ||
| 161 | ✗ | if (gains_[1] != Scalar(0.)) { | |
| 162 | ✗ | d->a0_local += gains_[1] * d->v.linear(); | |
| 163 | } | ||
| 164 | ✗ | d->a0[0] = (Raxis_ * oRf * d->a0_local)[2]; | |
| 165 | |||
| 166 | ✗ | pinocchio::skew((Raxis_ * oRf * d->a0_local).template head<3>(), | |
| 167 | ✗ | d->a0_skew); | |
| 168 | ✗ | d->a0_world_skew.noalias() = d->a0_skew * Raxis_ * oRf; | |
| 169 | ✗ | d->da0_dx.row(0) = (Raxis_ * oRf * d->da0_local_dx).row(2); | |
| 170 | ✗ | d->da0_dx.leftCols(nv).row(0) -= | |
| 171 | ✗ | (d->a0_world_skew * d->fJf.template bottomRows<3>()).row(2); | |
| 172 | ✗ | break; | |
| 173 | } | ||
| 174 | ✗ | } | |
| 175 | |||
| 176 | template <typename Scalar> | ||
| 177 | ✗ | void ContactModel1DTpl<Scalar>::updateForce( | |
| 178 | const std::shared_ptr<ContactDataAbstract>& data, const VectorXs& force) { | ||
| 179 | ✗ | if (force.size() != 1) { | |
| 180 | ✗ | throw_pretty( | |
| 181 | "Invalid argument: " << "lambda has wrong dimension (it should be 1)"); | ||
| 182 | } | ||
| 183 | ✗ | Data* d = static_cast<Data*>(data.get()); | |
| 184 | ✗ | const Eigen::Ref<const Matrix3s> R = d->jMf.rotation(); | |
| 185 | ✗ | data->f.linear()[2] = force[0]; | |
| 186 | ✗ | data->f.linear().template head<2>().setZero(); | |
| 187 | ✗ | data->f.angular().setZero(); | |
| 188 | ✗ | switch (type_) { | |
| 189 | ✗ | case pinocchio::ReferenceFrame::LOCAL: | |
| 190 | ✗ | data->fext.linear() = (R * Raxis_.transpose()).col(2) * force[0]; | |
| 191 | ✗ | data->fext.angular() = d->jMf.translation().cross(data->fext.linear()); | |
| 192 | ✗ | data->dtau_dq.setZero(); | |
| 193 | ✗ | break; | |
| 194 | ✗ | case pinocchio::ReferenceFrame::WORLD: | |
| 195 | case pinocchio::ReferenceFrame::LOCAL_WORLD_ALIGNED: | ||
| 196 | ✗ | const Eigen::Ref<const Matrix3s> oRf = d->pinocchio->oMf[id_].rotation(); | |
| 197 | ✗ | d->f_local.linear().noalias() = | |
| 198 | ✗ | (oRf.transpose() * Raxis_.transpose()).col(2) * force[0]; | |
| 199 | ✗ | d->f_local.angular().setZero(); | |
| 200 | ✗ | data->fext = data->jMf.act(d->f_local); | |
| 201 | ✗ | pinocchio::skew(d->f_local.linear(), d->f_skew); | |
| 202 | ✗ | d->fJf_df.noalias() = d->f_skew * d->fJf.template bottomRows<3>(); | |
| 203 | ✗ | data->dtau_dq.noalias() = | |
| 204 | ✗ | -d->fJf.template topRows<3>().transpose() * d->fJf_df; | |
| 205 | ✗ | break; | |
| 206 | } | ||
| 207 | ✗ | } | |
| 208 | |||
| 209 | template <typename Scalar> | ||
| 210 | std::shared_ptr<ContactDataAbstractTpl<Scalar> > | ||
| 211 | ✗ | ContactModel1DTpl<Scalar>::createData(pinocchio::DataTpl<Scalar>* const data) { | |
| 212 | ✗ | return std::allocate_shared<Data>(Eigen::aligned_allocator<Data>(), this, | |
| 213 | ✗ | data); | |
| 214 | } | ||
| 215 | |||
| 216 | template <typename Scalar> | ||
| 217 | template <typename NewScalar> | ||
| 218 | ✗ | ContactModel1DTpl<NewScalar> ContactModel1DTpl<Scalar>::cast() const { | |
| 219 | typedef ContactModel1DTpl<NewScalar> ReturnType; | ||
| 220 | typedef StateMultibodyTpl<NewScalar> StateType; | ||
| 221 | ✗ | ReturnType ret( | |
| 222 | ✗ | std::make_shared<StateType>(state_->template cast<NewScalar>()), id_, | |
| 223 | ✗ | scalar_cast<NewScalar>(xref_), type_, Raxis_.template cast<NewScalar>(), | |
| 224 | ✗ | nu_, gains_.template cast<NewScalar>()); | |
| 225 | ✗ | return ret; | |
| 226 | } | ||
| 227 | |||
| 228 | template <typename Scalar> | ||
| 229 | ✗ | void ContactModel1DTpl<Scalar>::print(std::ostream& os) const { | |
| 230 | ✗ | os << "ContactModel1D {frame=" << state_->get_pinocchio()->frames[id_].name | |
| 231 | ✗ | << ", axis=" << (Raxis_ * Vector3s::UnitZ()).transpose() << "}"; | |
| 232 | ✗ | } | |
| 233 | |||
| 234 | template <typename Scalar> | ||
| 235 | ✗ | const Scalar ContactModel1DTpl<Scalar>::get_reference() const { | |
| 236 | ✗ | return xref_; | |
| 237 | } | ||
| 238 | |||
| 239 | template <typename Scalar> | ||
| 240 | const typename MathBaseTpl<Scalar>::Vector2s& | ||
| 241 | ✗ | ContactModel1DTpl<Scalar>::get_gains() const { | |
| 242 | ✗ | return gains_; | |
| 243 | } | ||
| 244 | |||
| 245 | template <typename Scalar> | ||
| 246 | const typename MathBaseTpl<Scalar>::Matrix3s& | ||
| 247 | ✗ | ContactModel1DTpl<Scalar>::get_axis_rotation() const { | |
| 248 | ✗ | return Raxis_; | |
| 249 | } | ||
| 250 | |||
| 251 | template <typename Scalar> | ||
| 252 | ✗ | void ContactModel1DTpl<Scalar>::set_reference(const Scalar reference) { | |
| 253 | ✗ | xref_ = reference; | |
| 254 | ✗ | } | |
| 255 | |||
| 256 | template <typename Scalar> | ||
| 257 | ✗ | void ContactModel1DTpl<Scalar>::set_axis_rotation(const Matrix3s& rotation) { | |
| 258 | ✗ | Raxis_ = rotation; | |
| 259 | ✗ | } | |
| 260 | |||
| 261 | } // namespace crocoddyl | ||
| 262 |