FrictionSaccadeController Class Reference

#include <Neuro/SaccadeControllers.H>

Inheritance diagram for FrictionSaccadeController:

[legend]Collaboration diagram for FrictionSaccadeController:

[legend]List of all members.

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Detailed Description

Friction-damped mass-spring saccade controller.

FrictionSaccadeController acts like a mass (at saccade center) connected to the covert focus of attention through a spring of zero rest length, and sliding on a plane in the presence of friction.

Definition at line 150 of file SaccadeControllers.H.

Public Member Functions
	FrictionSaccadeController (OptionManager &mgr, const SaccadeBodyPart bodypart)
	Constructor.
virtual	~FrictionSaccadeController ()
	Destructor.
Protected Member Functions
virtual void	doEvolve (SimEventQueue &q)
	evolve one time step
virtual void	computeWhenNewPercept (SimEventQueue &q)
	This method is called each time a new percept has arrived.
virtual void	computeWhenResetPos (SimEventQueue &q)
	This method is called each time a reset is made.
virtual Point2D< int >	computeWhenNewDecision (SaccadeState &sacstate, bool &blinkstate, SimEventQueue &q)
	This method is called each time a new decision is requested.
Protected Attributes
OModelParam< double >	itsSpringK
	spring stiffness
OModelParam< double >	itsFrictionMu
	friction coeff
OModelParam< Dims >	itsDims
	Image size so that we stay inside it.
OModelParam< SimTime >	itsTimeStep
	Simulation time step.
Friends
class	ThresholdFrictionSaccadeController
class	MonkeySaccadeController

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Constructor & Destructor Documentation

FrictionSaccadeController::FrictionSaccadeController (  OptionManager &  mgr, const SaccadeBodyPart  bodypart )

Constructor. Parameters: part  As this controller may be used either for the eye or for the head (as part of bigger controllers that include both eye and head), this should be either SaccadeBodyPartEye or SaccadeBodyPartHead and will determine which model options we use for our internal parameters (eye or head) Definition at line 194 of file SaccadeControllers.C.

FrictionSaccadeController::~FrictionSaccadeController (   )  [virtual]

Destructor. Definition at line 214 of file SaccadeControllers.C.

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Member Function Documentation

Point2D< int > FrictionSaccadeController::computeWhenNewDecision (  SaccadeState &  sacstate, bool &  blinkstate, SimEventQueue &  q )  [protected, virtual]

This method is called each time a new decision is requested. Implements SaccadeController. Definition at line 289 of file SaccadeControllers.C. References Point2D< T >::clampToDims(), OModelParam< T >::getVal(), SaccadeController::havePercepts(), itsDims, SACSTATE_FIX, SACSTATE_SMO, SACSTATE_UNK, SimTime::secs(), and sqrt().

void FrictionSaccadeController::computeWhenNewPercept (  SimEventQueue &  q  )  [protected, virtual]

This method is called each time a new percept has arrived. Implements SaccadeController. Definition at line 260 of file SaccadeControllers.C. References SaccadeController::getPreviousPercept(), Point2D< T >::i, Point2D< T >::j, last, WTAwinner::p, SimTime::secs(), and WTAwinner::t.

void FrictionSaccadeController::computeWhenResetPos (  SimEventQueue &  q  )  [protected, virtual]

This method is called each time a reset is made. Implements SaccadeController. Definition at line 275 of file SaccadeControllers.C. References SaccadeController::getPreviousPercept(), Point2D< T >::i, Point2D< T >::j, WTAwinner::p, and WTAwinner::t.

void FrictionSaccadeController::doEvolve (  SimEventQueue &  q  )  [protected, virtual]

evolve one time step Implements SaccadeController. Definition at line 218 of file SaccadeControllers.C. References SimTime::computeDeltaT(), SaccadeController::getPreviousPercept(), OModelParam< T >::getVal(), SaccadeController::havePercepts(), Point2D< T >::i, itsFrictionMu, itsSpringK, itsTimeStep, Point2D< T >::j, last, SimEventQueue::now(), WTAwinner::p, SimTime::secs(), and t.

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Member Data Documentation

OModelParam<Dims> FrictionSaccadeController::itsDims [protected]

Image size so that we stay inside it. Definition at line 171 of file SaccadeControllers.H. Referenced by computeWhenNewDecision().

OModelParam<double> FrictionSaccadeController::itsFrictionMu [protected]

friction coeff Definition at line 170 of file SaccadeControllers.H. Referenced by doEvolve().

OModelParam<double> FrictionSaccadeController::itsSpringK [protected]

spring stiffness Definition at line 169 of file SaccadeControllers.H. Referenced by doEvolve().

OModelParam<SimTime> FrictionSaccadeController::itsTimeStep [protected]

Simulation time step. Definition at line 172 of file SaccadeControllers.H. Referenced by doEvolve().

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

• src/Neuro/SaccadeControllers.H
• src/Neuro/SaccadeControllers.C

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