codac::CtcEval Class Reference

\(\mathcal{C}_\textrm{eval}\) that contracts a tube \([y](\cdot)\) with respect to its derivative tube \([w](\cdot)\) and a measurement \([t]\times[z]\) according to the constraints \(z=y(t)\) and \(\dot{y}(\cdot)=w(\cdot)\) More...

#include <codac_CtcEval.h>

Inheritance diagram for codac::CtcEval:

Collaboration diagram for codac::CtcEval:

Public Member Functions
	CtcEval ()
	Creates a contractor object \(\mathcal{C}_\textrm{eval}\).
void	enable_time_propag (bool enable_propagation)
	Enables a forward/backward temporal propagation of the contraction.
void	contract (double t, Interval &z, Tube &y, Tube &w)
	\(\mathcal{C}_\textrm{eval}\big(t,[z],[y](\cdot),[w](\cdot)\big)\): contracts the tube \([y](\cdot)\) and the evaluation \([z]\).
void	contract (Interval &t, Interval &z, Tube &y, Tube &w)
	\(\mathcal{C}_\textrm{eval}\big([t],[z],[y](\cdot),[w](\cdot)\big)\): contracts the tube \([y](\cdot)\) and the evaluation \([t]\times[z]\).
void	contract (double t, IntervalVector &z, TubeVector &y, TubeVector &w)
	\(\mathcal{C}_\textrm{eval}\big(t,[\mathbf{z}],[\mathbf{y}](\cdot),[\mathbf{w}](\cdot)\big)\): contracts the tube \([\mathbf{y}](\cdot)\) and the evaluation \([\mathbf{z}]\).
void	contract (Interval &t, IntervalVector &z, TubeVector &y, TubeVector &w)
	\(\mathcal{C}_\textrm{eval}\big([t],[\mathbf{z}],[\mathbf{y}](\cdot),[\mathbf{w}](\cdot)\big)\): contracts the tube \([\mathbf{y}](\cdot)\) and the evaluation \([t]\times[\mathbf{z}]\).
void	contract (Interval &t, Interval &z, const Tube &y)
	\(\mathcal{C}_\textrm{eval}\big([t],[z],[y](\cdot)\big)\): contracts the evaluation \([t]\times[z]\) only.
void	contract (Interval &t, IntervalVector &z, const TubeVector &y)
	\(\mathcal{C}_\textrm{eval}\big([t],[\mathbf{z}],[\mathbf{y}](\cdot)\big)\): contracts the evaluation \([t]\times[\mathbf{z}]\) only.
Public Member Functions inherited from codac::DynCtc
	DynCtc (bool intertemporal=true)
	Creates a contractor.
virtual	~DynCtc ()
	DynCtc destructor.
void	preserve_slicing (bool preserve=true)
	Specifies whether the contractor can impact the tube's slicing or not.
void	set_fast_mode (bool fast_mode=true)
	Specifies an optional fast mode of contraction.
void	restrict_tdomain (const Interval &tdomain)
	Limits the temporal domain of contractions.
bool	is_intertemporal () const
	Tests if the related constraint is inter-temporal or not.

Protected Attributes
bool	m_propagation_enabled = true
	if true, a complete temporal propagation will be performed
Protected Attributes inherited from codac::DynCtc
bool	m_preserve_slicing = true
	if true, tube's slicing will not be affected by the contractor
bool	m_fast_mode = false
	some contractors may propose more pessimistic but faster execution modes
Interval	m_restricted_tdomain
	limits the contractions to the specified temporal domain
const bool	m_intertemporal = true
	defines if the related constraint is inter-temporal or not (true by default)

Static Protected Attributes
static const std::string	m_ctc_name
	class name (mainly used for CN Exceptions)
static std::vector< std::string >	m_str_expected_doms
	allowed domains signatures (mainly used for CN Exceptions)

Detailed Description

\(\mathcal{C}_\textrm{eval}\) that contracts a tube \([y](\cdot)\) with respect to its derivative tube \([w](\cdot)\) and a measurement \([t]\times[z]\) according to the constraints \(z=y(t)\) and \(\dot{y}(\cdot)=w(\cdot)\)

Note

This contractor is denoted \(\mathcal{C}_\textrm{eval}\) in the literature.

Member Function Documentation

enable_time_propag()

void codac::CtcEval::enable_time_propag

(

bool

enable_propagation

)

Enables a forward/backward temporal propagation of the contraction.

Note

If disabled, then the contraction will only affect the slices over \([t]\).

Parameters

enable_propagation

if true, the contractions will be propagated as far as possible across \([t_0,t_f]\)

contract() [1/6]

void codac::CtcEval::contract	(	double	t,
		Interval &	z,
		Tube &	y,
		Tube &	w )

\(\mathcal{C}_\textrm{eval}\big(t,[z],[y](\cdot),[w](\cdot)\big)\): contracts the tube \([y](\cdot)\) and the evaluation \([z]\).

Note

The slicing of \([y](\cdot)\) and \([w](\cdot)\) may be changed.

Parameters

t	the date \(t\) of the evaluation
z	the bounded evaluation \([z]\)
y	the scalar tube \([y](\cdot)\)
w	the scalar derivative tube \([w](\cdot)\)

contract() [2/6]

void codac::CtcEval::contract	(	Interval &	t,
		Interval &	z,
		Tube &	y,
		Tube &	w )

\(\mathcal{C}_\textrm{eval}\big([t],[z],[y](\cdot),[w](\cdot)\big)\): contracts the tube \([y](\cdot)\) and the evaluation \([t]\times[z]\).

Note

The slicing of \([y](\cdot)\) and \([w](\cdot)\) may be changed.

Parameters

t	the uncertain tdomain \([t]\) of the evaluation
z	the bounded evaluation \([z]\)
y	the scalar tube \([y](\cdot)\)
w	the scalar derivative tube \([w](\cdot)\)

contract() [3/6]

void codac::CtcEval::contract	(	double	t,
		IntervalVector &	z,
		TubeVector &	y,
		TubeVector &	w )

\(\mathcal{C}_\textrm{eval}\big(t,[\mathbf{z}],[\mathbf{y}](\cdot),[\mathbf{w}](\cdot)\big)\): contracts the tube \([\mathbf{y}](\cdot)\) and the evaluation \([\mathbf{z}]\).

Note

The slicing of \([\mathbf{y}](\cdot)\) and \([\mathbf{w}](\cdot)\) may be changed.

Parameters

t	the date \(t\) of the evaluation
z	the bounded evaluation \([\mathbf{z}]\)
y	the n-dimensional tube \([\mathbf{y}](\cdot)\)
w	the n-dimensional derivative tube \([\mathbf{w}](\cdot)\)

contract() [4/6]

void codac::CtcEval::contract	(	Interval &	t,
		IntervalVector &	z,
		TubeVector &	y,
		TubeVector &	w )

\(\mathcal{C}_\textrm{eval}\big([t],[\mathbf{z}],[\mathbf{y}](\cdot),[\mathbf{w}](\cdot)\big)\): contracts the tube \([\mathbf{y}](\cdot)\) and the evaluation \([t]\times[\mathbf{z}]\).

Note

The slicing of \([\mathbf{y}](\cdot)\) and \([\mathbf{w}](\cdot)\) may be changed.

Parameters

t	the uncertain tdomain \([t]\) of the evaluation
z	the bounded evaluation \([\mathbf{z}]\)
y	the n-dimensional tube \([\mathbf{y}](\cdot)\)
w	the n-dimensional derivative tube \([\mathbf{w}](\cdot)\)

contract() [5/6]

void codac::CtcEval::contract	(	Interval &	t,
		Interval &	z,
		const Tube &	y )

\(\mathcal{C}_\textrm{eval}\big([t],[z],[y](\cdot)\big)\): contracts the evaluation \([t]\times[z]\) only.

Parameters

t	the uncertain tdomain \([t]\) of the evaluation
z	the bounded evaluation \([z]\)
y	the scalar tube \([y](\cdot)\)

contract() [6/6]

void codac::CtcEval::contract	(	Interval &	t,
		IntervalVector &	z,
		const TubeVector &	y )

\(\mathcal{C}_\textrm{eval}\big([t],[\mathbf{z}],[\mathbf{y}](\cdot)\big)\): contracts the evaluation \([t]\times[\mathbf{z}]\) only.

Parameters

t	the uncertain tdomain \([t]\) of the evaluation
z	the bounded evaluation \([\mathbf{z}]\)
y	the n-dimensional tube \([\mathbf{y}](\cdot)\)

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

• /home/simon/codac/src/core/contractors/dyn/codac_CtcEval.h