Directory: | ./ |
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File: | include/crocoddyl/multibody/residuals/pair-collision.hxx |
Date: | 2025-01-16 08:47:40 |
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1 | /////////////////////////////////////////////////////////////////////////////// | ||
2 | // BSD 3-Clause License | ||
3 | // | ||
4 | // Copyright (C) 2021-2022, LAAS-CNRS, University of Edinburgh, INRIA | ||
5 | // Copyright note valid unless otherwise stated in individual files. | ||
6 | // All rights reserved. | ||
7 | /////////////////////////////////////////////////////////////////////////////// | ||
8 | |||
9 | #ifdef PINOCCHIO_WITH_HPP_FCL | ||
10 | |||
11 | #include <pinocchio/algorithm/geometry.hpp> | ||
12 | #include <pinocchio/algorithm/jacobian.hpp> | ||
13 | #include <pinocchio/multibody/fcl.hpp> | ||
14 | |||
15 | #include "crocoddyl/core/utils/exception.hpp" | ||
16 | |||
17 | namespace crocoddyl { | ||
18 | |||
19 | template <typename Scalar> | ||
20 | 64 | ResidualModelPairCollisionTpl<Scalar>::ResidualModelPairCollisionTpl( | |
21 | boost::shared_ptr<StateMultibody> state, const std::size_t nu, | ||
22 | boost::shared_ptr<GeometryModel> geom_model, | ||
23 | const pinocchio::PairIndex pair_id, const pinocchio::JointIndex joint_id) | ||
24 | : Base(state, 3, nu, true, false, false), | ||
25 |
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64 | pin_model_(*state->get_pinocchio()), |
26 | 64 | geom_model_(geom_model), | |
27 | 64 | pair_id_(pair_id), | |
28 |
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64 | joint_id_(joint_id) { |
29 |
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64 | if (static_cast<pinocchio::FrameIndex>(geom_model->collisionPairs.size()) <= |
30 | pair_id) { | ||
31 | ✗ | throw_pretty( | |
32 | "Invalid argument: " | ||
33 | << "the pair index is wrong (it does not exist in the geometry model)"); | ||
34 | } | ||
35 |
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64 | if (static_cast<pinocchio::FrameIndex>(state->get_pinocchio()->njoints) <= |
36 | joint_id) { | ||
37 | ✗ | throw_pretty( | |
38 | "Invalid argument: " | ||
39 | << "the joint index is wrong (it does not exist in the robot)"); | ||
40 | } | ||
41 | 64 | } | |
42 | |||
43 | template <typename Scalar> | ||
44 | 128 | ResidualModelPairCollisionTpl<Scalar>::~ResidualModelPairCollisionTpl() {} | |
45 | |||
46 | template <typename Scalar> | ||
47 | 2234 | void ResidualModelPairCollisionTpl<Scalar>::calc( | |
48 | const boost::shared_ptr<ResidualDataAbstract> &data, | ||
49 | const Eigen::Ref<const VectorXs> &x, const Eigen::Ref<const VectorXs> &) { | ||
50 | 2234 | Data *d = static_cast<Data *>(data.get()); | |
51 | |||
52 | const Eigen::VectorBlock<const Eigen::Ref<const VectorXs>, Eigen::Dynamic> q = | ||
53 |
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2234 | x.head(state_->get_nq()); |
54 | |||
55 | // computes the distance for the collision pair pair_id_ | ||
56 |
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2234 | pinocchio::updateGeometryPlacements(pin_model_, *d->pinocchio, |
57 | 2234 | *geom_model_.get(), d->geometry, q); | |
58 |
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2234 | pinocchio::computeDistance(*geom_model_.get(), d->geometry, pair_id_); |
59 | |||
60 | // calculate residual | ||
61 |
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2234 | data->r = d->geometry.distanceResults[pair_id_].nearest_points[0] - |
62 | 2234 | d->geometry.distanceResults[pair_id_].nearest_points[1]; | |
63 | 2234 | } | |
64 | |||
65 | template <typename Scalar> | ||
66 | 42 | void ResidualModelPairCollisionTpl<Scalar>::calcDiff( | |
67 | const boost::shared_ptr<ResidualDataAbstract> &data, | ||
68 | const Eigen::Ref<const VectorXs> &, const Eigen::Ref<const VectorXs> &) { | ||
69 | 42 | Data *d = static_cast<Data *>(data.get()); | |
70 | |||
71 | 42 | const std::size_t nv = state_->get_nv(); | |
72 | |||
73 | // calculate the vector from the joint jointId to the collision p1, expressed | ||
74 | // in world frame | ||
75 |
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42 | d->d = d->geometry.distanceResults[pair_id_].nearest_points[0] - |
76 | 42 | d->pinocchio->oMi[joint_id_].translation(); | |
77 | 42 | pinocchio::getJointJacobian(pin_model_, *d->pinocchio, joint_id_, | |
78 | 42 | pinocchio::LOCAL_WORLD_ALIGNED, d->J); | |
79 | |||
80 | // calculate the Jacobian at p1 | ||
81 |
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42 | d->J.template topRows<3>().noalias() += |
82 |
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42 | pinocchio::skew(d->d).transpose() * d->J.template bottomRows<3>(); |
83 | |||
84 | // compute the residual derivatives | ||
85 |
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42 | d->Rx.topLeftCorner(3, nv) = d->J.template topRows<3>(); |
86 | 42 | } | |
87 | |||
88 | template <typename Scalar> | ||
89 | boost::shared_ptr<ResidualDataAbstractTpl<Scalar> > | ||
90 | 2716 | ResidualModelPairCollisionTpl<Scalar>::createData( | |
91 | DataCollectorAbstract *const data) { | ||
92 | ✗ | return boost::allocate_shared<Data>(Eigen::aligned_allocator<Data>(), this, | |
93 |
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2716 | data); |
94 | } | ||
95 | |||
96 | template <typename Scalar> | ||
97 | const pinocchio::GeometryModel & | ||
98 | 2716 | ResidualModelPairCollisionTpl<Scalar>::get_geometry() const { | |
99 | 2716 | return *geom_model_.get(); | |
100 | } | ||
101 | |||
102 | } // namespace crocoddyl | ||
103 | |||
104 | #endif // PINOCCHIO_WITH_HPP_FCL | ||
105 |