Actuation residual. More...

#include <free-invdyn.hpp>

Inheritance diagram for DifferentialActionModelFreeInvDynamicsTpl< _Scalar >::ResidualModelActuation:

Public Types
typedef ActuationModelAbstractTpl< Scalar >	ActuationModelAbstract

typedef ResidualModelAbstractTpl< Scalar >	Base

typedef DataCollectorAbstractTpl< Scalar >	DataCollectorAbstract

typedef MathBaseTpl< Scalar >	MathBase

typedef MathBase::MatrixXs	MatrixXs

typedef ResidualDataAbstractTpl< Scalar >	ResidualDataAbstract

typedef StateMultibodyTpl< Scalar >	StateMultibody

typedef MathBase::VectorXs	VectorXs

Public Types inherited from ResidualModelAbstractTpl< _Scalar >
typedef ActivationDataAbstractTpl< Scalar >	ActivationDataAbstract

typedef CostDataAbstractTpl< Scalar >	CostDataAbstract

typedef DataCollectorAbstractTpl< Scalar >	DataCollectorAbstract

typedef MathBase::DiagonalMatrixXs	DiagonalMatrixXs

typedef MathBaseTpl< Scalar >	MathBase

typedef MathBase::MatrixXs	MatrixXs

typedef ResidualDataAbstractTpl< Scalar >	ResidualDataAbstract

typedef StateAbstractTpl< Scalar >	StateAbstract

typedef MathBase::VectorXs	VectorXs

Public Member Functions
	ResidualModelActuation (std::shared_ptr< StateMultibody > state, const std::size_t nu)
	Initialize the actuation residual model.

virtual void	calc (const std::shared_ptr< ResidualDataAbstract > &data, const Eigen::Ref< const VectorXs > &)
	Compute the residual vector for nodes that depends only on the state.

virtual void	calc (const std::shared_ptr< ResidualDataAbstract > &data, const Eigen::Ref< const VectorXs > &, const Eigen::Ref< const VectorXs > &)
	Compute the actuation residual.

virtual void	calcDiff (const std::shared_ptr< ResidualDataAbstract > &data, const Eigen::Ref< const VectorXs > &)

virtual void	calcDiff (const std::shared_ptr< ResidualDataAbstract > &data, const Eigen::Ref< const VectorXs > &, const Eigen::Ref< const VectorXs > &)
	Compute the derivatives of the actuation residual.

virtual std::shared_ptr< ResidualDataAbstract >	createData (DataCollectorAbstract *const data)
	Create the actuation residual data.

virtual void	print (std::ostream &os) const
	Print relevant information of the actuation residual model.

Public Member Functions inherited from ResidualModelAbstractTpl< _Scalar >
	ResidualModelAbstractTpl (std::shared_ptr< StateAbstract > state, const std::size_t nr, const bool q_dependent=true, const bool v_dependent=true, const bool u_dependent=true)

	ResidualModelAbstractTpl (std::shared_ptr< StateAbstract > state, const std::size_t nr, const std::size_t nu, const bool q_dependent=true, const bool v_dependent=true, const bool u_dependent=true)
	Initialize the residual model.

virtual void	calcCostDiff (const std::shared_ptr< CostDataAbstract > &cdata, const std::shared_ptr< ResidualDataAbstract > &rdata, const std::shared_ptr< ActivationDataAbstract > &adata, const bool update_u=true)
	Compute the derivative of the cost function.

std::size_t	get_nr () const
	Return the dimension of the residual vector.

std::size_t	get_nu () const
	Return the dimension of the control input.

bool	get_q_dependent () const
	Return true if the residual function depends on q.

const std::shared_ptr< StateAbstract > &	get_state () const
	Return the state.

bool	get_u_dependent () const
	Return true if the residual function depends on u.

bool	get_v_dependent () const
	Return true if the residual function depends on v.

Public Attributes
EIGEN_MAKE_ALIGNED_OPERATOR_NEW typedef _Scalar	Scalar

Public Attributes inherited from ResidualModelAbstractTpl< _Scalar >
EIGEN_MAKE_ALIGNED_OPERATOR_NEW typedef _Scalar	Scalar

Protected Attributes
std::size_t	na_
	Dimension of the joint torques.

std::size_t	nu_
	Control dimension.

std::shared_ptr< StateAbstract >	state_
	State description.

Protected Attributes inherited from ResidualModelAbstractTpl< _Scalar >
std::size_t	nr_
	Residual vector dimension.

std::size_t	nu_
	Control dimension.

bool	q_dependent_

std::shared_ptr< StateAbstract >	state_
	State description.

bool	u_dependent_

VectorXs	unone_
	No control vector.

bool	v_dependent_

Detailed Description

template<typename _Scalar>
class crocoddyl::DifferentialActionModelFreeInvDynamicsTpl< _Scalar >::ResidualModelActuation

Actuation residual.

This residual function enforces the torques of under-actuated joints (e.g., floating-base joints) to be zero. We compute these torques and their derivatives using RNEA inside DifferentialActionModelFreeInvDynamicsTpl.

As described in ResidualModelAbstractTpl, the residual value and its Jacobians are calculated by calc and calcDiff, respectively.

See also: ResidualModelAbstractTpl, calc(), calcDiff(), createData()

Definition at line 255 of file free-invdyn.hpp.

Member Typedef Documentation

◆ MathBase

template<typename _Scalar >

typedef MathBaseTpl<Scalar> MathBase

Definition at line 260 of file free-invdyn.hpp.

◆ Base

template<typename _Scalar >

typedef ResidualModelAbstractTpl<Scalar> Base

Definition at line 261 of file free-invdyn.hpp.

◆ StateMultibody

template<typename _Scalar >

typedef StateMultibodyTpl<Scalar> StateMultibody

Definition at line 262 of file free-invdyn.hpp.

◆ ResidualDataAbstract

template<typename _Scalar >

typedef ResidualDataAbstractTpl<Scalar> ResidualDataAbstract

Definition at line 263 of file free-invdyn.hpp.

◆ DataCollectorAbstract

template<typename _Scalar >

typedef DataCollectorAbstractTpl<Scalar> DataCollectorAbstract

Definition at line 264 of file free-invdyn.hpp.

◆ ActuationModelAbstract

template<typename _Scalar >

typedef ActuationModelAbstractTpl<Scalar> ActuationModelAbstract

Definition at line 265 of file free-invdyn.hpp.

◆ VectorXs

template<typename _Scalar >

typedef MathBase::VectorXs VectorXs

Definition at line 266 of file free-invdyn.hpp.

◆ MatrixXs

template<typename _Scalar >

typedef MathBase::MatrixXs MatrixXs

Definition at line 267 of file free-invdyn.hpp.

Constructor & Destructor Documentation

◆ ResidualModelActuation()

template<typename _Scalar >

ResidualModelActuation	(	std::shared_ptr< StateMultibody >	state,
		const std::size_t	nu
	)

inline

Initialize the actuation residual model.

Parameters

[in]	state	State of the multibody system
[in]	nu	Dimension of the joint torques

Definition at line 275 of file free-invdyn.hpp.

◆ ~ResidualModelActuation()

template<typename _Scalar >

virtual ~ResidualModelActuation ( )

inlinevirtual

Definition at line 279 of file free-invdyn.hpp.

Member Function Documentation

◆ calc() [1/2]

template<typename _Scalar >

virtual void calc	(	const std::shared_ptr< ResidualDataAbstract > &	data,
		const Eigen::Ref< const VectorXs > &	,
		const Eigen::Ref< const VectorXs > &
	)

inlinevirtual

Compute the actuation residual.

Parameters

[in]	data	Actuation residual data
[in]	x	State point \(\mathbf{x}\in\mathbb{R}^{ndx}\)
[in]	u	Control input \(\mathbf{u}\in\mathbb{R}^{nv+nu}\)

Reimplemented from ResidualModelAbstractTpl< _Scalar >.

Definition at line 288 of file free-invdyn.hpp.

◆ calc() [2/2]

template<typename _Scalar >

virtual void calc	(	const std::shared_ptr< ResidualDataAbstract > &	data,
		const Eigen::Ref< const VectorXs > &
	)

inlinevirtual

Compute the residual vector for nodes that depends only on the state.

It updates the residual vector based on the state only. This function is used in the terminal nodes of an optimal control problem.

Parameters

[in]	data	Residual data
[in]	x	State point \(\mathbf{x}\in\mathbb{R}^{ndx}\)

Reimplemented from ResidualModelAbstractTpl< _Scalar >.

Definition at line 308 of file free-invdyn.hpp.

◆ calcDiff() [1/2]

template<typename _Scalar >

virtual void calcDiff	(	const std::shared_ptr< ResidualDataAbstract > &	data,
		const Eigen::Ref< const VectorXs > &	,
		const Eigen::Ref< const VectorXs > &
	)

inlinevirtual

Compute the derivatives of the actuation residual.

Parameters

[in]	data	Actuation residual data
[in]	x	State point \(\mathbf{x}\in\mathbb{R}^{ndx}\)
[in]	u	Control input \(\mathbf{u}\in\mathbb{R}^{nu}\)

Reimplemented from ResidualModelAbstractTpl< _Scalar >.

Definition at line 320 of file free-invdyn.hpp.

◆ calcDiff() [2/2]

template<typename _Scalar >

virtual void calcDiff	(	const std::shared_ptr< ResidualDataAbstract > &	data,
		const Eigen::Ref< const VectorXs > &
	)

inlinevirtual

Reimplemented from ResidualModelAbstractTpl< _Scalar >.

Definition at line 345 of file free-invdyn.hpp.

◆ createData()

template<typename _Scalar >

virtual std::shared_ptr< ResidualDataAbstract > createData ( DataCollectorAbstract *const data )

inlinevirtual

Create the actuation residual data.

Returns: Actuation residual data

Reimplemented from ResidualModelAbstractTpl< _Scalar >.

Definition at line 356 of file free-invdyn.hpp.

◆ print()

template<typename _Scalar >

virtual void print ( std::ostream & os ) const

inlinevirtual

Print relevant information of the actuation residual model.

Parameters

[out] os Output stream object

Reimplemented from ResidualModelAbstractTpl< _Scalar >.

Definition at line 368 of file free-invdyn.hpp.

Member Data Documentation

◆ Scalar

template<typename _Scalar >

EIGEN_MAKE_ALIGNED_OPERATOR_NEW typedef _Scalar Scalar

Definition at line 259 of file free-invdyn.hpp.

◆ na_

template<typename _Scalar >

std::size_t na_

protected

Dimension of the joint torques.

Definition at line 375 of file free-invdyn.hpp.

◆ nu_

template<typename _Scalar >

std::size_t nu_

protected

Control dimension.

Definition at line 227 of file residual-base.hpp.

◆ state_

template<typename _Scalar >

std::shared_ptr<StateAbstract> state_

protected

State description.

Definition at line 225 of file residual-base.hpp.

The documentation for this class was generated from the following file:

/root/robotpkg/optimization/py-crocoddyl/work/crocoddyl-2.1.0/include/crocoddyl/multibody/actions/free-invdyn.hpp

Public Types

Public Member Functions

Public Attributes

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ MathBase

◆ Base

◆ StateMultibody

◆ ResidualDataAbstract

◆ DataCollectorAbstract

◆ ActuationModelAbstract

◆ VectorXs

◆ MatrixXs

Constructor & Destructor Documentation

◆ ResidualModelActuation()

◆ ~ResidualModelActuation()

Member Function Documentation

◆ calc() [1/2]

◆ calc() [2/2]

◆ calcDiff() [1/2]

◆ calcDiff() [2/2]

◆ createData()

◆ print()

Member Data Documentation

◆ Scalar

◆ na_

◆ nu_

◆ state_