expose-constrained-fwd.cpp

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#ifdef ALIGATOR_WITH_PINOCCHIO
#include "aligator/python/fwd.hpp"
 
#include "aligator/modelling/dynamics/context.hpp"
#include "aligator/modelling/dynamics/multibody-constraint-fwd.hpp"
#include "aligator/python/fwd.hpp"
 
namespace aligator {
namespace python {
namespace {
 
using RigidConstraintModel =
    pinocchio::RigidConstraintModelTpl<context::Scalar, 0>;
using RigidConstraintData =
    pinocchio::RigidConstraintDataTpl<context::Scalar, 0>;
 
using RigidConstraintModelVector =
    PINOCCHIO_STD_VECTOR_WITH_EIGEN_ALLOCATOR(RigidConstraintModel);
using RigidConstraintDataVector =
    PINOCCHIO_STD_VECTOR_WITH_EIGEN_ALLOCATOR(RigidConstraintData);
 
} // namespace
 
void exposeConstrainedFwdDynamics() {
  using namespace aligator::dynamics;
  using context::ContinuousDynamicsAbstract;
  using context::ODEAbstract;
  using context::ODEData;
  using context::Scalar;
  using MultibodyConstraintFwdData = MultibodyConstraintFwdDataTpl<Scalar>;
  using MultibodyConstraintFwdDynamics =
      MultibodyConstraintFwdDynamicsTpl<Scalar>;
 
  PolymorphicMultiBaseVisitor<ODEAbstract, ContinuousDynamicsAbstract>
      ode_visitor;
  bp::class_<MultibodyConstraintFwdDynamics, bp::bases<ODEAbstract>>(
      "MultibodyConstraintFwdDynamics",
      "Constraint forward dynamics using Pinocchio.",
      bp::init<const MultibodyPhaseSpace<Scalar> &, const context::MatrixXs &,
               const RigidConstraintModelVector &,
               const pinocchio::ProximalSettingsTpl<Scalar> &>(
          ("self"_a, "space", "actuation_matrix", "constraint_models",
           "prox_settings")))
      .def(ode_visitor)
      .def_readwrite("constraint_models",
                     &MultibodyConstraintFwdDynamics::constraint_models_)
      .add_property("ntau", &MultibodyConstraintFwdDynamics::ntau,
                    "Torque dimension.");
 
  bp::register_ptr_to_python<shared_ptr<MultibodyConstraintFwdData>>();
 
  bp::class_<MultibodyConstraintFwdData, bp::bases<ODEData>>(
      "MultibodyConstraintFwdData", bp::no_init)
      .def_readwrite("tau", &MultibodyConstraintFwdData::tau_)
      .def_readwrite("dtau_dx", &MultibodyConstraintFwdData::dtau_dx_)
      .def_readwrite("dtau_du", &MultibodyConstraintFwdData::dtau_du_)
      .def_readwrite("pin_data", &MultibodyConstraintFwdData::pin_data_)
      .def_readwrite("constraint_datas",
                     &MultibodyConstraintFwdData::constraint_datas_);
}
} // namespace python
} // namespace aligator
 
#endif // ifdef ALIGATOR_WITH_PINOCCHIO