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/////////////////////////////////////////////////////////////////////////////// |
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// BSD 3-Clause License |
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// |
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// Copyright (C) 2021-2023, University of Edinburgh, 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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#include "contact_constraint.hpp" |
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#include "contact.hpp" |
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#include "cost.hpp" |
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#include "crocoddyl/core/constraints/residual.hpp" |
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#include "crocoddyl/multibody/actions/contact-fwddyn.hpp" |
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#include "crocoddyl/multibody/residuals/contact-control-gravity.hpp" |
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#include "crocoddyl/multibody/residuals/contact-cop-position.hpp" |
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#include "crocoddyl/multibody/residuals/contact-force.hpp" |
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#include "crocoddyl/multibody/residuals/contact-friction-cone.hpp" |
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#include "crocoddyl/multibody/residuals/contact-wrench-cone.hpp" |
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namespace crocoddyl { |
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namespace unittest { |
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const std::vector<ContactConstraintModelTypes::Type> |
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ContactConstraintModelTypes::all(ContactConstraintModelTypes::init_all()); |
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std::ostream &operator<<(std::ostream &os, |
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ContactConstraintModelTypes::Type type) { |
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switch (type) { |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactForceEquality: |
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os << "ConstraintModelResidualContactForceEquality"; |
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break; |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactCoPPositionInequality: |
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os << "ConstraintModelResidualContactCoPPositionInequality"; |
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break; |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactFrictionConeInequality: |
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os << "ConstraintModelResidualContactFrictionConeInequality"; |
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break; |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactWrenchConeInequality: |
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os << "ConstraintModelResidualContactWrenchConeInequality"; |
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break; |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactControlGravInequality: |
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os << "ConstraintModelResidualContactControlGravInequality"; |
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break; |
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case ContactConstraintModelTypes::NbContactConstraintModelTypes: |
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os << "NbContactConstraintModelTypes"; |
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break; |
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default: |
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break; |
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} |
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return os; |
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} |
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ContactConstraintModelFactory::ContactConstraintModelFactory() {} |
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ContactConstraintModelFactory::~ContactConstraintModelFactory() {} |
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std::shared_ptr<crocoddyl::DifferentialActionModelAbstract> |
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ContactConstraintModelFactory::create( |
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ContactConstraintModelTypes::Type constraint_type, |
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PinocchioModelTypes::Type model_type, |
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ActuationModelTypes::Type actuation_type) const { |
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// Identify the state type given the model type |
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StateModelTypes::Type state_type; |
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PinocchioModelFactory model_factory(model_type); |
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switch (model_type) { |
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case PinocchioModelTypes::Talos: |
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state_type = StateModelTypes::StateMultibody_Talos; |
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break; |
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case PinocchioModelTypes::RandomHumanoid: |
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state_type = StateModelTypes::StateMultibody_RandomHumanoid; |
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break; |
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case PinocchioModelTypes::HyQ: |
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state_type = StateModelTypes::StateMultibody_HyQ; |
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break; |
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default: |
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throw_pretty(__FILE__ ": Wrong PinocchioModelTypes::Type given"); |
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break; |
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} |
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// Create contact contact diff-action model with standard cost functions |
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std::shared_ptr<crocoddyl::DifferentialActionModelContactFwdDynamics> action; |
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std::shared_ptr<crocoddyl::StateMultibody> state; |
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std::shared_ptr<crocoddyl::ActuationModelAbstract> actuation; |
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std::shared_ptr<crocoddyl::ContactModelMultiple> contact; |
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std::shared_ptr<crocoddyl::CostModelSum> cost; |
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std::shared_ptr<crocoddyl::ConstraintModelManager> constraint; |
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state = std::static_pointer_cast<crocoddyl::StateMultibody>( |
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StateModelFactory().create(state_type)); |
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actuation = ActuationModelFactory().create(actuation_type, state_type); |
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contact = std::make_shared<crocoddyl::ContactModelMultiple>( |
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state, actuation->get_nu()); |
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cost = std::make_shared<crocoddyl::CostModelSum>(state, actuation->get_nu()); |
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constraint = std::make_shared<crocoddyl::ConstraintModelManager>( |
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state, actuation->get_nu()); |
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std::vector<std::size_t> frame_ids = model_factory.get_frame_ids(); |
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std::vector<std::string> frame_names = model_factory.get_frame_names(); |
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// Define the contact model |
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switch (state_type) { |
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case StateModelTypes::StateMultibody_Talos: |
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case StateModelTypes::StateMultibody_RandomHumanoid: |
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for (std::size_t i = 0; i < frame_names.size(); ++i) { |
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contact->addContact(frame_names[i], |
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ContactModelFactory().create( |
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ContactModelTypes::ContactModel6D_LOCAL, |
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model_type, Eigen::Vector2d::Random(), |
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frame_names[i], actuation->get_nu())); |
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} |
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break; |
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case StateModelTypes::StateMultibody_HyQ: |
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for (std::size_t i = 0; i < frame_names.size(); ++i) { |
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contact->addContact(frame_names[i], |
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ContactModelFactory().create( |
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ContactModelTypes::ContactModel3D_LOCAL, |
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model_type, Eigen::Vector2d::Random(), |
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frame_names[i], actuation->get_nu())); |
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} |
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break; |
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default: |
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throw_pretty(__FILE__ ": Wrong StateModelTypes::Type given"); |
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break; |
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} |
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// Define standard cost functions |
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cost->addCost( |
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"state", |
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CostModelFactory().create( |
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CostModelTypes::CostModelResidualState, state_type, |
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ActivationModelTypes::ActivationModelQuad, actuation->get_nu()), |
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0.1); |
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cost->addCost( |
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"control", |
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CostModelFactory().create( |
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CostModelTypes::CostModelResidualControl, state_type, |
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ActivationModelTypes::ActivationModelQuad, actuation->get_nu()), |
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0.1); |
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// Define the constraint function |
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Eigen::Matrix3d R = Eigen::Matrix3d::Identity(); |
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crocoddyl::FrictionCone friction_cone(R, 1.); |
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crocoddyl::WrenchCone wrench_cone(R, 1., Eigen::Vector2d(0.1, 0.1)); |
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crocoddyl::CoPSupport cop_support(R, Eigen::Vector2d(0.1, 0.1)); |
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Eigen::VectorXd lb, ub; |
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switch (constraint_type) { |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactForceEquality: |
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for (std::size_t i = 0; i < frame_ids.size(); ++i) { |
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constraint->addConstraint( |
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"constraint_" + std::to_string(i), |
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std::make_shared<crocoddyl::ConstraintModelResidual>( |
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state, |
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std::make_shared<crocoddyl::ResidualModelContactForce>( |
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state, frame_ids[i], pinocchio::Force::Random(), |
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model_factory.get_contact_nc(), actuation->get_nu()))); |
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} |
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break; |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactCoPPositionInequality: |
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lb = cop_support.get_lb(); |
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ub = cop_support.get_ub(); |
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for (std::size_t i = 0; i < frame_ids.size(); ++i) { |
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constraint->addConstraint( |
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"constraint_" + std::to_string(i), |
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std::make_shared<crocoddyl::ConstraintModelResidual>( |
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state, |
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std::make_shared<crocoddyl::ResidualModelContactCoPPosition>( |
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state, frame_ids[i], cop_support, actuation->get_nu()), |
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lb, ub)); |
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} |
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break; |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactFrictionConeInequality: |
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lb = friction_cone.get_lb(); |
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ub = friction_cone.get_ub(); |
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for (std::size_t i = 0; i < frame_ids.size(); ++i) { |
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constraint->addConstraint( |
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"constraint_" + std::to_string(i), |
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std::make_shared<crocoddyl::ConstraintModelResidual>( |
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state, |
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std::make_shared<crocoddyl::ResidualModelContactFrictionCone>( |
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state, frame_ids[i], friction_cone, actuation->get_nu()), |
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lb, ub), |
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true); |
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} |
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break; |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactWrenchConeInequality: |
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lb = wrench_cone.get_lb(); |
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ub = wrench_cone.get_ub(); |
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for (std::size_t i = 0; i < frame_ids.size(); ++i) { |
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constraint->addConstraint( |
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"constraint_" + std::to_string(i), |
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std::make_shared<crocoddyl::ConstraintModelResidual>( |
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state, |
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std::make_shared<crocoddyl::ResidualModelContactWrenchCone>( |
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state, frame_ids[i], wrench_cone, actuation->get_nu()), |
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lb, ub), |
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true); |
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} |
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break; |
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case ContactConstraintModelTypes:: |
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ConstraintModelResidualContactControlGravInequality: |
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lb = Eigen::VectorXd::Zero(state->get_nv()); |
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ub = Eigen::VectorXd::Random(state->get_nv()).cwiseAbs(); |
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constraint->addConstraint( |
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"constraint_0", |
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std::make_shared<crocoddyl::ConstraintModelResidual>( |
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state, |
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std::make_shared<crocoddyl::ResidualModelContactControlGrav>( |
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state, actuation->get_nu()), |
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lb, ub)); |
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break; |
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default: |
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throw_pretty(__FILE__ ": Wrong ContactConstraintModelTypes::Type given"); |
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break; |
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} |
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action = |
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std::make_shared<crocoddyl::DifferentialActionModelContactFwdDynamics>( |
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state, actuation, contact, cost, constraint, 0., true); |
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return action; |
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} |
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} // namespace unittest |
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} // namespace crocoddyl |
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