dotsReadableHIDGamepad Class Reference

Overview

Reads data from a HID gamepad device.

dotsReadableHIDGamepad extends the dotsReadableHID superclass to manage HID Gamepad devices. Many USB gamepads and joysticks are considered HID gamepads.

By default, dotsReadableHIDGamepad defines "pressed" events for each gamepad button. Use getNextEvent() to make sure that no presses are missed, and that each press is observed only once.

Inheritance diagram for dotsReadableHIDGamepad:

Properties and Events
Property	gamepadUsages = {'GamePad', 'Joystick', 'MultiAxisController'}
	HID usage names that are consistent with "gamepad".
Property	buttonMatching
	struct of HID parameters to identify gamepad button elements More...
Property	xMatching
	struct of HID parameters to identify the gamepad x-axis element More...
Property	yMatching
	struct of HID parameters to identify the gamepad y-axis element More...
Property	zMatching
	struct of HID parameters to identify the gamepad z-axis element More...
Properties and Events inherited from dotsReadableHID
Property	deviceInfo
	struct of info about the HID device
Property	deviceMatching
	struct of HID parameters for identifying suitable HID devices. More...
Property	devicePreference
	struct of HID parameters for choosing among suitable devices. More...
Property	queueDepth = 1024
	size of the mexHID() internal data queue More...
Property	queueIsOpen = false
	whether or not the internal data queue opened successfully
Property	isExclusive = false
	whether or not to get exclusive access to device data
Property	allowMultipleConnections = false
	whether or not to allow multiple objects to access the same device
Properties and Events inherited from dotsReadable
Property	isAvailable = false
	whether or not the object is ready to read() from
Property	components
	struct array with details about each component
Property	state
	matrix of ID, latest value, and latest time indexed by ID
Property	history
	matrix of component ID, value, and time from previous read()
Property	isAutoRead = true
	whether or not to to invoke read() during getValue(), etc.
Property	eventDefinitions
	struct array defining events of interest, indexed by ID
Property	initialEventQueueSize = 100
	initial size of queue for events of interest
Property	clockFunction
	any function that returns the current time as a number
Property	filename
	name of the data file for devices that store their own data
Property	filepath
	where the file is
Property	recordDuringCalibration = true
	controls whether or not to stop recording during calibration
Property	useGUI = false
	Flag to use GUI for feedback, etc.
Property	useExistingCalibration = false
	Flag to skip calibration routine.
Property	calibrationUI
	Possibly use a keyboard or other UI to help with calibration.
Property	deactivateEventsAtStartTrial =false
	Flag to deactivate all events at the beginning of each trial.

Protected Properties
Property	xID
	ID of the x-axis component.
Property	yID
	ID of the y-axis component.
Property	zID
	ID of the z-axis component (if any)
Property	buttonIDs
	ID of button components.
Protected Properties inherited from dotsReadableHID
Property	deviceID
	device identifier from mexHID('openMatchingDevice') More...
Property	queueCallback = @dotsReadableHID.mexHIDQueueCallback
	Callback which mexHID() uses to pass HID data to Matlab. More...
Property	queueCallbackData
	matrix of recent data passed in from mexHID()
Protected Properties inherited from dotsReadable
Property	eventQueue
	array of queued events (row indices into history)
Property	queueNext
	queue index of the next event to be dequeued
Property	queueLast =0
	queue index of the last event enqueued
Property	isRecording =false
	keep track of whether device is currenly writing to a data file
Property	didCalibrate = true
	Keep track of whether calibration occurs.
Property	defaultEventPrefix = 'event'
	Default prefix for event names: <prefix>_<componentName>
Property	eventSets
	Strutures with different named event definitions, in case we want to quickly swap between them.

Methods
self	dotsReadableHIDGamepad (devicePreference)
	Constructor may take device matching preferences. More...
Methods inherited from dotsReadableHID
self	dotsReadableHID ()
	Constructor takes no arguments.
	flushData (self, varargin)
	Clear data from this object and the mexHID() internal queue. More...
components	setComponentCalibration (self, namesOrIDs, rawRange, deadRange, calibratedRange, granularity)
	Adjust scaling of raw values from HID components. More...
event	defineEvent (self, name, varargin)
	Define a calibrated event for given component. More...
Methods inherited from dotsReadable
self	dotsReadable ()
	Constructor takes no arguments.
	initialize (self)
	Locate, acquire, configure, etc. device and component resources.
	calibrate (self, varargin)
	Calibrate the device More...
	record (self, onFlag, filename)
	Open/close data file associated with the device Arguments: onFlag ... More...
	reset (self, varargin)
	reset device More...
	close (self)
	Release any resources acquired by initialize().
	delete (self)
	Automatically close when Matlab is done with this object.
	read (self)
	Add incoming data to history and detect events of interest. More...
	flushData (self, waitForNoEvents)
	Delete historical data and reset the current state. More...
	logData (self)
	Record current and historical data in topsDataLog. More...
stateAtTime	getState (self, time)
	Get the state of device components as of the given time. More...
value data	getValue (self, ID)
	Get the latest value for the given component. More...
event	defineEvent (self, name, varargin)
	Define the event of interest for one of the input components. More...
	defineEventsFromComponents (self, names, varargin)
	defineEventsFromComponents More...
	defineEventsFromStruct (self, eventStruct, setName, keepExisting, inactivate)
	defineEventsFromStruct More...
	showActiveEvents (self)
	Mostly for debugging.
	activateEventSet (self, name)
	Swap in a set of events.
	activateEvents (self)
	Activate all events. More...
	deactivateEvents (self)
	Deactivate all events. More...
activeFlags	getActiveFlags (self)
	Get all active flags.
	setActiveFlags (self, activeFlags)
	Set all active flags from array.
	setEventsActiveFlag (self, activateList, deactivateList)
	Set/unset activeFlag. More...
name data	getNextEvent (self, isPeek, acceptedEvents)
	Get the next event that was detected in read(). More...
lastName lastID names IDs	getHappeningEvent (self, time)
	Get events that are happening at the current time. More...
name waitTime data	waitForEvents (self, eventNames, maxWait)
	Wait for event(s)
nEvents	getNumberOfEvents (self)
	Get the number of events in eventQueue. More...
IDs	getComponentIDs (self)
	Get an array of unique integer component IDs. More...
ID	getComponentID (self, nameOrID)
	Get ID of component by name or ID
name	getComponentName (self, nameOrID)
	Get name of component by name or ID
indices	getComponentIndicesByID (self, IDs)
	Get array of indices for the given component IDs
indices	getComponentIndicesByName (self, names)
	Get array of indices for the given component names
time	getDeviceTime (self)
	Get the current time from clockFunction.
	setDeviceTime (self, val)
	Set the device time
	startTrial (self, varargin)
	startTrial() More...
	finishTrial (self, varargin)
	finishTrial() More...
	plotData (self)
	Open a figure with continuously read device data. More...
	startTrialDevice (self, varargin)
	Overloaded methods.

Protected Methods
components	openComponents (self)
	Locate and enqueue buttons and axes of the gamepad.
	closeComponents (self)
	Unenqueue all the buttons of the Gamepad.
Protected Methods inherited from dotsReadableHID
isOpen	openDevice (self)
	Find the best available HID device with mexHID().
	closeDevice (self)
	Release mexHID() resources for this device.
isOpen	openHIDQueue (self, cookies)
	Open a queue to record value changes for device elements. More...
newData	readNewData (self)
	Pass any data from the mexHID() internal queue to this object(). More...
Protected Methods inherited from dotsReadable
isOpen	openDevice (self)
	Locate and acquire input device resources (for subclasses). More...
	closeDevice (self)
	Release input device resources (for subclasses). More...
	resetDevice (self, varargin)
	Reset the device.
status	calibrateDevice (self, varargin)
	Calibrate the device (for subclasses). More...
isRecording	startRecording (self)
	Turn on data recording from the device (for subclasses).
isRecording	stopRecording (self)
	Turn off data recording from the device (for subclasses).
components	openComponents (self)
	Locate and acquire device components (for subclasses). More...
	closeComponents (self)
	Release device components (for subclasses). More...
newData	readNewData (self)
	Read and format incoming data (for subclasses). More...
isEvent	detectEvents (self, data)
	Use new data to look up events of interest (used internally). More...
newSize	resizeEventQueue (self, minSize, doClear)
	Resize and optionally clear the event queue (used internally). More...
nEvents	enqueueEvents (self, eventValues)
	Add events of interest to the event queue (used internally). More...
eventValue nEvents	dequeueEvent (self, isPeek)
	Remove the next queued event of interest (used internally). More...

Additional Inherited Members
Static Methods inherited from dotsReadableHID
static	mexHIDQueueCallback (self, newData)
	Pass data from the mexHID() internal queue to Matlab. For newData, Rows are inputs Columns are.
static time	currentHIDTime ()
	Get the current time from the system USB/HID implementation.
Static Methods inherited from dotsReadable
static isHappening data readable	isEventHappening (readables, eventName)
	Is the named event happening now? More...
static didHappen waitTime data readable name	waitForEvent (readables, eventName, maxWait)
	Wait for the named event to happen. More...
static data	loadDataFile (filename, varargin)
	Load data from file. More...

Constructor

dotsReadableHIDGamepad()

self dotsReadableHIDGamepad

(

devicePreference

)

Constructor may take device matching preferences.

Parameters

devicePreference

struct of HID matching parameters

devicePreference is an optional struct of HID parameters for choosing among suitable devices, assigned to the devicePreference property.

Properties and Events

buttonMatching

Property buttonMatching

struct of HID parameters to identify gamepad button elements

See mexHIDUsage() or mexHIDUsage.gui() for lists of valid HID parameters.

xMatching

Property xMatching

struct of HID parameters to identify the gamepad x-axis element

See mexHIDUsage() or mexHIDUsage.gui() for lists of valid HID parameters.

yMatching

Property yMatching

struct of HID parameters to identify the gamepad y-axis element

See mexHIDUsage() or mexHIDUsage.gui() for lists of valid HID parameters.

zMatching

Property zMatching

struct of HID parameters to identify the gamepad z-axis element

See mexHIDUsage() or mexHIDUsage.gui() for lists of valid HID parameters.

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

• dotsReadableHIDGamepad.m