Directory: | ./ |
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File: | include/crocoddyl/core/numdiff/activation.hpp |
Date: | 2025-01-16 08:47:40 |
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1 | /////////////////////////////////////////////////////////////////////////////// | ||
2 | // BSD 3-Clause License | ||
3 | // | ||
4 | // Copyright (C) 2019-2023, LAAS-CNRS, New York University, | ||
5 | // Max Planck Gesellschaft, University of Edinburgh | ||
6 | // Copyright note valid unless otherwise stated in individual files. | ||
7 | // All rights reserved. | ||
8 | /////////////////////////////////////////////////////////////////////////////// | ||
9 | |||
10 | #ifndef CROCODDYL_CORE_NUMDIFF_ACTIVATION_HPP_ | ||
11 | #define CROCODDYL_CORE_NUMDIFF_ACTIVATION_HPP_ | ||
12 | |||
13 | #include <iostream> | ||
14 | #include <vector> | ||
15 | |||
16 | #include "crocoddyl/core/activation-base.hpp" | ||
17 | #include "crocoddyl/core/fwd.hpp" | ||
18 | |||
19 | namespace crocoddyl { | ||
20 | |||
21 | template <typename _Scalar> | ||
22 | class ActivationModelNumDiffTpl : public ActivationModelAbstractTpl<_Scalar> { | ||
23 | public: | ||
24 | EIGEN_MAKE_ALIGNED_OPERATOR_NEW | ||
25 | |||
26 | typedef _Scalar Scalar; | ||
27 | typedef MathBaseTpl<Scalar> MathBase; | ||
28 | typedef ActivationModelAbstractTpl<Scalar> Base; | ||
29 | typedef ActivationDataNumDiffTpl<Scalar> Data; | ||
30 | typedef ActivationDataAbstractTpl<Scalar> ActivationDataAbstract; | ||
31 | typedef typename MathBase::VectorXs VectorXs; | ||
32 | typedef typename MathBase::MatrixXs MatrixXs; | ||
33 | |||
34 | /** | ||
35 | * @brief Construct a new ActivationModelNumDiff object | ||
36 | * | ||
37 | * @param model | ||
38 | */ | ||
39 | explicit ActivationModelNumDiffTpl(boost::shared_ptr<Base> model); | ||
40 | |||
41 | /** | ||
42 | * @brief Destroy the ActivationModelNumDiff object | ||
43 | */ | ||
44 | virtual ~ActivationModelNumDiffTpl(); | ||
45 | |||
46 | /** | ||
47 | * @brief @copydoc Base::calc() | ||
48 | */ | ||
49 | virtual void calc(const boost::shared_ptr<ActivationDataAbstract>& data, | ||
50 | const Eigen::Ref<const VectorXs>& r); | ||
51 | |||
52 | /** | ||
53 | * @brief @copydoc Base::calcDiff() | ||
54 | */ | ||
55 | virtual void calcDiff(const boost::shared_ptr<ActivationDataAbstract>& data, | ||
56 | const Eigen::Ref<const VectorXs>& r); | ||
57 | |||
58 | /** | ||
59 | * @brief Create a Data object from the given model. | ||
60 | * | ||
61 | * @return boost::shared_ptr<ActivationDataAbstract> | ||
62 | */ | ||
63 | virtual boost::shared_ptr<ActivationDataAbstract> createData(); | ||
64 | |||
65 | /** | ||
66 | * @brief Get the model_ object | ||
67 | * | ||
68 | * @return Base& | ||
69 | */ | ||
70 | const boost::shared_ptr<Base>& get_model() const; | ||
71 | |||
72 | /** | ||
73 | * @brief Return the disturbance constant used in the numerical | ||
74 | * differentiation routine | ||
75 | */ | ||
76 | const Scalar get_disturbance() const; | ||
77 | |||
78 | /** | ||
79 | * @brief Modify the disturbance constant used in the numerical | ||
80 | * differentiation routine | ||
81 | */ | ||
82 | void set_disturbance(const Scalar disturbance); | ||
83 | |||
84 | private: | ||
85 | boost::shared_ptr<Base> | ||
86 | model_; //!< model to compute the finite differentiation from | ||
87 | Scalar e_jac_; //!< Constant used for computing disturbances in Jacobian | ||
88 | //!< calculation | ||
89 | |||
90 | protected: | ||
91 | using Base::nr_; | ||
92 | }; | ||
93 | |||
94 | template <typename _Scalar> | ||
95 | struct ActivationDataNumDiffTpl : public ActivationDataAbstractTpl<_Scalar> { | ||
96 | EIGEN_MAKE_ALIGNED_OPERATOR_NEW | ||
97 | |||
98 | typedef _Scalar Scalar; | ||
99 | typedef MathBaseTpl<Scalar> MathBase; | ||
100 | typedef typename MathBase::VectorXs VectorXs; | ||
101 | typedef ActivationDataAbstractTpl<Scalar> Base; | ||
102 | typedef typename MathBase::MatrixXs MatrixXs; | ||
103 | |||
104 | /** | ||
105 | * @brief Construct a new ActivationDataNumDiff object | ||
106 | * | ||
107 | * @tparam Model is the type of the ActivationModel. | ||
108 | * @param model is the object to compute the numerical differentiation from. | ||
109 | */ | ||
110 | template <template <typename Scalar> class Model> | ||
111 | 11 | explicit ActivationDataNumDiffTpl(Model<Scalar>* const model) | |
112 | : Base(model), | ||
113 |
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11 | dr(model->get_model()->get_nr()), |
114 |
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11 | rp(model->get_model()->get_nr()), |
115 |
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22 | Arr_(Arr.rows(), Arr.cols()) { |
116 |
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11 | dr.setZero(); |
117 |
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11 | rp.setZero(); |
118 |
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11 | Arr_.setZero(); |
119 |
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11 | data_0 = model->get_model()->createData(); |
120 | 11 | const std::size_t nr = model->get_model()->get_nr(); | |
121 | 11 | data_rp.clear(); | |
122 |
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60 | for (std::size_t i = 0; i < nr; ++i) { |
123 |
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49 | data_rp.push_back(model->get_model()->createData()); |
124 | } | ||
125 | |||
126 | 11 | data_r2p.clear(); | |
127 |
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55 | for (std::size_t i = 0; i < 4; ++i) { |
128 |
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44 | data_r2p.push_back(model->get_model()->createData()); |
129 | } | ||
130 | 11 | } | |
131 | |||
132 | VectorXs dr; //!< disturbance: \f$ [\hdot \;\; disturbance \;\; \hdot] \f$ | ||
133 | VectorXs rp; //!< The input + the disturbance on one DoF "\f$ r^+ = rp = \int | ||
134 | //!< r + dr \f$" | ||
135 | boost::shared_ptr<Base> data_0; //!< The data that contains the final results | ||
136 | std::vector<boost::shared_ptr<Base> > | ||
137 | data_rp; //!< The temporary data associated with the input variation | ||
138 | std::vector<boost::shared_ptr<Base> > | ||
139 | data_r2p; //!< The temporary data associated with the input variation | ||
140 | |||
141 | MatrixXs Arr_; | ||
142 | using Base::a_value; | ||
143 | using Base::Ar; | ||
144 | using Base::Arr; | ||
145 | }; | ||
146 | |||
147 | } // namespace crocoddyl | ||
148 | |||
149 | /* --- Details -------------------------------------------------------------- */ | ||
150 | /* --- Details -------------------------------------------------------------- */ | ||
151 | /* --- Details -------------------------------------------------------------- */ | ||
152 | #include "crocoddyl/core/numdiff/activation.hxx" | ||
153 | |||
154 | #endif // CROCODDYL_CORE_NUMDIFF_ACTIVATION_HPP_ | ||
155 |