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|---|---|---|---|
| 1 | /////////////////////////////////////////////////////////////////////////////// | ||
| 2 | // BSD 3-Clause License | ||
| 3 | // | ||
| 4 | // Copyright (C) 2019-2025, LAAS-CNRS, University of Edinburgh, | ||
| 5 | // University of Oxford, Heriot-Watt University | ||
| 6 | // Copyright note valid unless otherwise stated in individual files. All | ||
| 7 | // rights reserved. | ||
| 8 | /////////////////////////////////////////////////////////////////////////////// | ||
| 9 | |||
| 10 | #ifndef CROCODDYL_CORE_ACTIVATIONS_QUADRATIC_BARRIER_HPP_ | ||
| 11 | #define CROCODDYL_CORE_ACTIVATIONS_QUADRATIC_BARRIER_HPP_ | ||
| 12 | |||
| 13 | #include "crocoddyl/core/activation-base.hpp" | ||
| 14 | #include "crocoddyl/core/fwd.hpp" | ||
| 15 | |||
| 16 | namespace crocoddyl { | ||
| 17 | |||
| 18 | template <typename _Scalar> | ||
| 19 | struct ActivationBoundsTpl { | ||
| 20 | EIGEN_MAKE_ALIGNED_OPERATOR_NEW | ||
| 21 | |||
| 22 | typedef _Scalar Scalar; | ||
| 23 | typedef MathBaseTpl<Scalar> MathBase; | ||
| 24 | typedef typename MathBase::VectorXs VectorXs; | ||
| 25 | typedef typename MathBase::MatrixXs MatrixXs; | ||
| 26 | |||
| 27 | ✗ | ActivationBoundsTpl(const VectorXs& lower, const VectorXs& upper, | |
| 28 | const Scalar b = Scalar(1.)) | ||
| 29 | ✗ | : lb(lower), ub(upper), beta(b) { | |
| 30 | ✗ | if (lb.size() != ub.size()) { | |
| 31 | ✗ | throw_pretty("Invalid argument: " | |
| 32 | << "The lower and upper bounds don't have the same " | ||
| 33 | "dimension (lb,ub dimensions equal to " + | ||
| 34 | std::to_string(lb.size()) + "," + | ||
| 35 | std::to_string(ub.size()) + ", respectively)"); | ||
| 36 | } | ||
| 37 | ✗ | if (beta < Scalar(0) || beta > Scalar(1.)) { | |
| 38 | ✗ | throw_pretty( | |
| 39 | "Invalid argument: " << "The range of beta is between 0 and 1"); | ||
| 40 | } | ||
| 41 | ✗ | for (std::size_t i = 0; i < static_cast<std::size_t>(lb.size()); ++i) { | |
| 42 | ✗ | if (isfinite(lb(i)) && isfinite(ub(i))) { | |
| 43 | ✗ | if (lb(i) - ub(i) > Scalar(0)) { | |
| 44 | ✗ | throw_pretty("Invalid argument: " | |
| 45 | << "The lower and upper bounds are badly defined; ub " | ||
| 46 | "has to be bigger / equals to lb"); | ||
| 47 | } | ||
| 48 | } | ||
| 49 | // Assign the maximum value for infinity/nan values | ||
| 50 | ✗ | if (!isfinite(lb(i))) { | |
| 51 | ✗ | lb(i) = -std::numeric_limits<Scalar>::max(); | |
| 52 | } | ||
| 53 | ✗ | if (!isfinite(ub(i))) { | |
| 54 | ✗ | ub(i) = std::numeric_limits<Scalar>::max(); | |
| 55 | } | ||
| 56 | } | ||
| 57 | |||
| 58 | ✗ | if (beta >= Scalar(0) && beta <= Scalar(1.)) { | |
| 59 | ✗ | for (std::size_t i = 0; i < static_cast<std::size_t>(lb.size()); ++i) { | |
| 60 | // do not use beta when one of the bounds is inf | ||
| 61 | ✗ | if (lb(i) != (-std::numeric_limits<Scalar>::max()) && | |
| 62 | ✗ | ub(i) != (std::numeric_limits<Scalar>::max())) { | |
| 63 | ✗ | Scalar m = Scalar(0.5) * (lb(i) + ub(i)); | |
| 64 | ✗ | Scalar d = Scalar(0.5) * (ub(i) - lb(i)); | |
| 65 | ✗ | lb(i) = m - beta * d; | |
| 66 | ✗ | ub(i) = m + beta * d; | |
| 67 | } | ||
| 68 | } | ||
| 69 | ✗ | } else { | |
| 70 | ✗ | beta = Scalar(1.); | |
| 71 | } | ||
| 72 | ✗ | } | |
| 73 | ✗ | ActivationBoundsTpl(const ActivationBoundsTpl& other) | |
| 74 | ✗ | : lb(other.lb), ub(other.ub), beta(other.beta) {} | |
| 75 | ✗ | ActivationBoundsTpl() : beta(Scalar(1.)) {} | |
| 76 | |||
| 77 | template <typename NewScalar> | ||
| 78 | ✗ | ActivationBoundsTpl<NewScalar> cast() const { | |
| 79 | typedef ActivationBoundsTpl<NewScalar> ReturnType; | ||
| 80 | ✗ | ReturnType res(lb.template cast<NewScalar>(), ub.template cast<NewScalar>(), | |
| 81 | ✗ | scalar_cast<NewScalar>(beta)); | |
| 82 | ✗ | return res; | |
| 83 | } | ||
| 84 | |||
| 85 | ✗ | ActivationBoundsTpl& operator=(const ActivationBoundsTpl& other) { | |
| 86 | ✗ | if (this != &other) { | |
| 87 | ✗ | lb = other.lb; | |
| 88 | ✗ | ub = other.ub; | |
| 89 | ✗ | beta = other.beta; | |
| 90 | } | ||
| 91 | ✗ | return *this; | |
| 92 | } | ||
| 93 | |||
| 94 | /** | ||
| 95 | * @brief Print information on the activation bounds | ||
| 96 | */ | ||
| 97 | ✗ | friend std::ostream& operator<<(std::ostream& os, | |
| 98 | const ActivationBoundsTpl& bounds) { | ||
| 99 | ✗ | bounds.print(os); | |
| 100 | ✗ | return os; | |
| 101 | } | ||
| 102 | |||
| 103 | ✗ | void print(std::ostream& os) const { | |
| 104 | ✗ | os << "ActivationBounds {lb=" << lb.transpose() << ", ub=" << ub.transpose() | |
| 105 | ✗ | << ", beta=" << beta << "}"; | |
| 106 | ✗ | } | |
| 107 | |||
| 108 | VectorXs lb; | ||
| 109 | VectorXs ub; | ||
| 110 | Scalar beta; | ||
| 111 | }; | ||
| 112 | |||
| 113 | template <typename _Scalar> | ||
| 114 | class ActivationModelQuadraticBarrierTpl | ||
| 115 | : public ActivationModelAbstractTpl<_Scalar> { | ||
| 116 | public: | ||
| 117 | EIGEN_MAKE_ALIGNED_OPERATOR_NEW | ||
| 118 | ✗ | CROCODDYL_DERIVED_CAST(ActivationModelBase, | |
| 119 | ActivationModelQuadraticBarrierTpl) | ||
| 120 | |||
| 121 | typedef _Scalar Scalar; | ||
| 122 | typedef MathBaseTpl<Scalar> MathBase; | ||
| 123 | typedef ActivationModelAbstractTpl<Scalar> Base; | ||
| 124 | typedef ActivationDataAbstractTpl<Scalar> ActivationDataAbstract; | ||
| 125 | typedef ActivationDataQuadraticBarrierTpl<Scalar> Data; | ||
| 126 | typedef ActivationBoundsTpl<Scalar> ActivationBounds; | ||
| 127 | typedef typename MathBase::VectorXs VectorXs; | ||
| 128 | typedef typename MathBase::MatrixXs MatrixXs; | ||
| 129 | |||
| 130 | ✗ | explicit ActivationModelQuadraticBarrierTpl(const ActivationBounds& bounds) | |
| 131 | ✗ | : Base(bounds.lb.size()), bounds_(bounds) {}; | |
| 132 | ✗ | virtual ~ActivationModelQuadraticBarrierTpl() = default; | |
| 133 | |||
| 134 | ✗ | virtual void calc(const std::shared_ptr<ActivationDataAbstract>& data, | |
| 135 | const Eigen::Ref<const VectorXs>& r) override { | ||
| 136 | ✗ | if (static_cast<std::size_t>(r.size()) != nr_) { | |
| 137 | ✗ | throw_pretty( | |
| 138 | "Invalid argument: " << "r has wrong dimension (it should be " + | ||
| 139 | std::to_string(nr_) + ")"); | ||
| 140 | } | ||
| 141 | |||
| 142 | ✗ | std::shared_ptr<Data> d = std::static_pointer_cast<Data>(data); | |
| 143 | |||
| 144 | ✗ | d->rlb_min_ = (r - bounds_.lb).array().min(Scalar(0.)); | |
| 145 | ✗ | d->rub_max_ = (r - bounds_.ub).array().max(Scalar(0.)); | |
| 146 | ✗ | data->a_value = Scalar(0.5) * d->rlb_min_.matrix().squaredNorm() + | |
| 147 | ✗ | Scalar(0.5) * d->rub_max_.matrix().squaredNorm(); | |
| 148 | ✗ | }; | |
| 149 | |||
| 150 | ✗ | virtual void calcDiff(const std::shared_ptr<ActivationDataAbstract>& data, | |
| 151 | const Eigen::Ref<const VectorXs>& r) override { | ||
| 152 | ✗ | if (static_cast<std::size_t>(r.size()) != nr_) { | |
| 153 | ✗ | throw_pretty( | |
| 154 | "Invalid argument: " << "r has wrong dimension (it should be " + | ||
| 155 | std::to_string(nr_) + ")"); | ||
| 156 | } | ||
| 157 | |||
| 158 | ✗ | std::shared_ptr<Data> d = std::static_pointer_cast<Data>(data); | |
| 159 | ✗ | data->Ar = (d->rlb_min_ + d->rub_max_).matrix(); | |
| 160 | |||
| 161 | using pinocchio::internal::if_then_else; | ||
| 162 | ✗ | for (Eigen::Index i = 0; i < data->Arr.cols(); i++) { | |
| 163 | ✗ | data->Arr.diagonal()[i] = if_then_else( | |
| 164 | ✗ | pinocchio::internal::LE, r[i] - bounds_.lb[i], Scalar(0.), Scalar(1.), | |
| 165 | ✗ | if_then_else(pinocchio::internal::GE, r[i] - bounds_.ub[i], | |
| 166 | ✗ | Scalar(0.), Scalar(1.), Scalar(0.))); | |
| 167 | } | ||
| 168 | ✗ | }; | |
| 169 | |||
| 170 | ✗ | virtual std::shared_ptr<ActivationDataAbstract> createData() override { | |
| 171 | ✗ | return std::allocate_shared<Data>(Eigen::aligned_allocator<Data>(), this); | |
| 172 | }; | ||
| 173 | |||
| 174 | template <typename NewScalar> | ||
| 175 | ✗ | ActivationModelQuadraticBarrierTpl<NewScalar> cast() const { | |
| 176 | typedef ActivationModelQuadraticBarrierTpl<NewScalar> ReturnType; | ||
| 177 | ✗ | ReturnType res(bounds_.template cast<NewScalar>()); | |
| 178 | ✗ | return res; | |
| 179 | } | ||
| 180 | |||
| 181 | ✗ | const ActivationBounds& get_bounds() const { return bounds_; }; | |
| 182 | ✗ | void set_bounds(const ActivationBounds& bounds) { bounds_ = bounds; }; | |
| 183 | |||
| 184 | /** | ||
| 185 | * @brief Print relevant information of the quadratic barrier model | ||
| 186 | * | ||
| 187 | * @param[out] os Output stream object | ||
| 188 | */ | ||
| 189 | ✗ | virtual void print(std::ostream& os) const override { | |
| 190 | ✗ | os << "ActivationModelQuadraticBarrier {nr=" << nr_ << "}"; | |
| 191 | ✗ | } | |
| 192 | |||
| 193 | protected: | ||
| 194 | using Base::nr_; | ||
| 195 | |||
| 196 | private: | ||
| 197 | ActivationBounds bounds_; | ||
| 198 | }; | ||
| 199 | |||
| 200 | template <typename _Scalar> | ||
| 201 | struct ActivationDataQuadraticBarrierTpl | ||
| 202 | : public ActivationDataAbstractTpl<_Scalar> { | ||
| 203 | EIGEN_MAKE_ALIGNED_OPERATOR_NEW | ||
| 204 | |||
| 205 | typedef _Scalar Scalar; | ||
| 206 | typedef MathBaseTpl<Scalar> MathBase; | ||
| 207 | typedef typename MathBase::ArrayXs ArrayXs; | ||
| 208 | typedef typename MathBase::VectorXs VectorXs; | ||
| 209 | typedef typename MathBase::DiagonalMatrixXs DiagonalMatrixXs; | ||
| 210 | typedef ActivationDataAbstractTpl<Scalar> Base; | ||
| 211 | |||
| 212 | template <typename Activation> | ||
| 213 | ✗ | explicit ActivationDataQuadraticBarrierTpl(Activation* const activation) | |
| 214 | : Base(activation), | ||
| 215 | ✗ | rlb_min_(activation->get_nr()), | |
| 216 | ✗ | rub_max_(activation->get_nr()) { | |
| 217 | ✗ | rlb_min_.setZero(); | |
| 218 | ✗ | rub_max_.setZero(); | |
| 219 | ✗ | } | |
| 220 | |||
| 221 | ArrayXs rlb_min_; | ||
| 222 | ArrayXs rub_max_; | ||
| 223 | |||
| 224 | using Base::a_value; | ||
| 225 | using Base::Ar; | ||
| 226 | using Base::Arr; | ||
| 227 | }; | ||
| 228 | |||
| 229 | } // namespace crocoddyl | ||
| 230 | |||
| 231 | CROCODDYL_DECLARE_EXTERN_TEMPLATE_STRUCT(crocoddyl::ActivationBoundsTpl) | ||
| 232 | CROCODDYL_DECLARE_EXTERN_TEMPLATE_CLASS( | ||
| 233 | crocoddyl::ActivationModelQuadraticBarrierTpl) | ||
| 234 | CROCODDYL_DECLARE_EXTERN_TEMPLATE_STRUCT( | ||
| 235 | crocoddyl::ActivationDataQuadraticBarrierTpl) | ||
| 236 | |||
| 237 | #endif // CROCODDYL_CORE_ACTIVATIONS_QUADRATIC_BARRIER_HPP_ | ||
| 238 |