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/////////////////////////////////////////////////////////////////////////////// |
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// BSD 3-Clause License |
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// |
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// Copyright (C) 2021-2025, University of Edinburgh, INRIA, |
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// Heriot-Watt University |
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// Copyright note valid unless otherwise stated in individual files. |
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// All rights reserved. |
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/////////////////////////////////////////////////////////////////////////////// |
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namespace crocoddyl { |
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template <typename Scalar> |
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CostModelResidualTpl<Scalar>::CostModelResidualTpl( |
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std::shared_ptr<typename Base::StateAbstract> state, |
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std::shared_ptr<ActivationModelAbstract> activation, |
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std::shared_ptr<ResidualModelAbstract> residual) |
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: Base(state, activation, residual) {} |
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template <typename Scalar> |
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CostModelResidualTpl<Scalar>::CostModelResidualTpl( |
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std::shared_ptr<typename Base::StateAbstract> state, |
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std::shared_ptr<ResidualModelAbstract> residual) |
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: Base(state, residual) {} |
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template <typename Scalar> |
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void CostModelResidualTpl<Scalar>::calc( |
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const std::shared_ptr<CostDataAbstract>& data, |
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const Eigen::Ref<const VectorXs>& x, const Eigen::Ref<const VectorXs>& u) { |
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// Compute the cost residual |
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residual_->calc(data->residual, x, u); |
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// Compute the cost |
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activation_->calc(data->activation, data->residual->r); |
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data->cost = data->activation->a_value; |
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} |
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template <typename Scalar> |
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void CostModelResidualTpl<Scalar>::calc( |
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const std::shared_ptr<CostDataAbstract>& data, |
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const Eigen::Ref<const VectorXs>& x) { |
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const bool is_rq = residual_->get_q_dependent(); |
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const bool is_rv = residual_->get_v_dependent(); |
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if (!is_rq && !is_rv) { |
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data->activation->a_value = 0.; |
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data->cost = 0.; |
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return; // do nothing |
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} |
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// Compute the cost residual |
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residual_->calc(data->residual, x); |
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// Compute the cost |
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activation_->calc(data->activation, data->residual->r); |
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data->cost = data->activation->a_value; |
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} |
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template <typename Scalar> |
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void CostModelResidualTpl<Scalar>::calcDiff( |
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const std::shared_ptr<CostDataAbstract>& data, |
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const Eigen::Ref<const VectorXs>& x, const Eigen::Ref<const VectorXs>& u) { |
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// Compute the derivatives of the activation and contact wrench cone residual |
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// models |
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residual_->calcDiff(data->residual, x, u); |
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activation_->calcDiff(data->activation, data->residual->r); |
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// Compute the derivatives of the cost function based on a Gauss-Newton |
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// approximation |
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residual_->calcCostDiff(data, data->residual, data->activation); |
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} |
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template <typename Scalar> |
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void CostModelResidualTpl<Scalar>::calcDiff( |
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const std::shared_ptr<CostDataAbstract>& data, |
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const Eigen::Ref<const VectorXs>& x) { |
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// Compute the derivatives of the activation and contact wrench cone residual |
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// models |
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const bool is_rq = residual_->get_q_dependent(); |
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const bool is_rv = residual_->get_v_dependent(); |
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if (!is_rq && !is_rv) { |
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data->Lx.setZero(); |
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data->Lxx.setZero(); |
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return; // do nothing |
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} |
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residual_->calcDiff(data->residual, x); |
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activation_->calcDiff(data->activation, data->residual->r); |
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// Compute the derivatives of the cost function based on a Gauss-Newton |
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// approximation |
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residual_->calcCostDiff(data, data->residual, data->activation, false); |
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} |
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template <typename Scalar> |
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std::shared_ptr<CostDataAbstractTpl<Scalar> > |
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CostModelResidualTpl<Scalar>::createData(DataCollectorAbstract* const data) { |
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return std::allocate_shared<Data>(Eigen::aligned_allocator<Data>(), this, |
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data); |
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} |
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template <typename Scalar> |
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template <typename NewScalar> |
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CostModelResidualTpl<NewScalar> CostModelResidualTpl<Scalar>::cast() const { |
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typedef CostModelResidualTpl<NewScalar> ReturnType; |
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if (activation_) { |
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ReturnType ret(state_->template cast<NewScalar>(), |
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activation_->template cast<NewScalar>(), |
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residual_->template cast<NewScalar>()); |
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return ret; |
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} else { |
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ReturnType ret(state_->template cast<NewScalar>(), |
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residual_->template cast<NewScalar>()); |
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return ret; |
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} |
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} |
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template <typename Scalar> |
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void CostModelResidualTpl<Scalar>::print(std::ostream& os) const { |
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os << "CostModelResidual {" << *residual_ << ", " << *activation_ << "}"; |
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} |
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} // namespace crocoddyl |
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