Template Function pinocchio::computeABADerivatives(const ModelTpl<Scalar, Options, JointCollectionTpl>&, DataTpl<Scalar, Options, JointCollectionTpl>&, const Eigen::MatrixBase<ConfigVectorType>&, const Eigen::MatrixBase<TangentVectorType1>&, const Eigen::MatrixBase<TangentVectorType2>&, const container::aligned_vector<ForceTpl<Scalar, Options>>&)

Function Documentation

template<typename Scalar, int Options, template<typename, int> class JointCollectionTpl, typename ConfigVectorType, typename TangentVectorType1, typename TangentVectorType2>
inline void pinocchio::computeABADerivatives(const ModelTpl<Scalar, Options, JointCollectionTpl> &model, DataTpl<Scalar, Options, JointCollectionTpl> &data, const Eigen::MatrixBase<ConfigVectorType> &q, const Eigen::MatrixBase<TangentVectorType1> &v, const Eigen::MatrixBase<TangentVectorType2> &tau, const container::aligned_vector<ForceTpl<Scalar, Options>> &fext)

The derivatives of the Articulated-Body algorithm with external forces.

See also

pinocchio::aba and

See also

pinocchio::computeABADerivatives.

Template Parameters:

  • JointCollection – Collection of Joint types.

  • ConfigVectorType – Type of the joint configuration vector.

  • TangentVectorType1 – Type of the joint velocity vector.

  • TangentVectorType2 – Type of the joint torque vector.

Parameters:

  • model – [in] The model structure of the rigid body system.

  • data – [in] The data structure of the rigid body system.

  • q – [in] The joint configuration vector (dim model.nq).

  • v – [in] The joint velocity vector (dim model.nv).

  • tau – [in] The joint torque vector (dim model.nv).

  • fext – [in] External forces expressed in the local frame of the joints (dim model.njoints).

Returns:

The results are stored in data.ddq_dq, data.ddq_dv and data.Minv which respectively correspond to the partial derivatives of the joint acceleration vector with respect to the joint configuration, velocity and torque. And as for pinocchio::computeMinverse, only the upper triangular part of data.Minv is filled.