expose-contact-jacobian.cpp

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//
// Copyright (c) 2021 INRIA
//
 
#include "pinocchio/bindings/python/algorithm/algorithms.hpp"
#include "pinocchio/algorithm/contact-jacobian.hpp"
 
#include "pinocchio/bindings/python/utils/std-vector.hpp"
 
namespace bp = boost::python;
 
namespace pinocchio
{
  namespace python
  {
 
    typedef PINOCCHIO_STD_VECTOR_WITH_EIGEN_ALLOCATOR(context::RigidConstraintModel)
      RigidConstraintModelVector;
    typedef PINOCCHIO_STD_VECTOR_WITH_EIGEN_ALLOCATOR(context::RigidConstraintData)
      RigidConstraintDataVector;
 
    static context::MatrixXs getConstraintJacobian_proxy(
      const context::Model & model,
      const context::Data & data,
      const context::RigidConstraintModel & contact_model,
      context::RigidConstraintData & contact_data)
    {
      context::MatrixXs J(contact_model.size(), model.nv);
      J.setZero();
      getConstraintJacobian(model, data, contact_model, contact_data, J);
      return J;
    }
 
    static context::MatrixXs getConstraintsJacobian_proxy(
      const context::Model & model,
      const context::Data & data,
      const RigidConstraintModelVector & contact_models,
      RigidConstraintDataVector & contact_datas)
    {
      const Eigen::DenseIndex constraint_size = getTotalConstraintSize(contact_models);
      context::MatrixXs J(constraint_size, model.nv);
      J.setZero();
      getConstraintsJacobian(model, data, contact_models, contact_datas, J);
      return J;
    }
 
    void exposeContactJacobian()
    {
      bp::def(
        "getConstraintJacobian", getConstraintJacobian_proxy,
        bp::args("model", "data", "contact_model", "contact_data"),
        "Computes the kinematic Jacobian associatied to a given constraint model.");
      bp::def(
        "getConstraintsJacobian", getConstraintsJacobian_proxy,
        bp::args("model", "data", "contact_models", "contact_datas"),
        "Computes the kinematic Jacobian associatied to a given set of constraint models.");
    }
  } // namespace python
} // namespace pinocchio