Package libavg :: Module avg :: Class TouchEvent

Class TouchEvent

Raised when a touch or other tracking event occurs. Touch events happen only when a multi-touch sensitive surface or other camera tracker is active. For each touch event, statistical data based on moments are calculated.

Instance Methods

getContour()
Extracts contour envelope sequence for the event

events

getRelatedEvents()
Returns a python tuple containing the events 'related' to this one.

Inherited from unreachable.instance: __new__

Inherited from object: __delattr__, __getattribute__, __hash__, __reduce__, __reduce_ex__, __repr__, __setattr__, __str__

Inherited from Event

__init__(...)
Raises an exception This class cannot be instantiated from Python

Inherited from Event
Properties
	area Size of the blob found in pixels (ro).
	center Position as double.
	cursorid
	eccentricity
	inertia
	lastdownpos The initial position of the cursor.
	majoraxis Major axis of an ellipse that is similar to the blob (ro).
	minoraxis Minor axis of an ellipse that is similar to the blob (ro).
	node The node that the event handler was declared in (ro).
	orientation Angle of the blob.
	pos Position in the global coordinate system (ro).
	source TOUCH for actual touches, TRACK for hands above the surface or generic tracking.
	speed Current speed of the blob in pixels per millisecond as a 2-component vector (ro).
	x x position in the global coordinate system (ro).
	y y position in the global coordinate system (ro).
Inherited from `object`: `__class__`
	type One of KEYUP, KEYDOWN, CURSORMOTION, CURSORUP, CURSORDOWN, CURSOROVER, CURSOROUT, RESIZE or QUIT.
	when The timestamp of the event in milliseconds.

Method Details

getRelatedEvents()

Returns a python tuple containing the events 'related' to this one. For TOUCH events (fingers), the tuple contains one element: the corresponding TRACK event (hand). For TRACK events, the tuple contains all TOUCH events that belong to the same hand.

Returns: events

Property Details

area

Size of the blob found in pixels (ro).

Get Method:: unreachable(...)

center

Position as double. Used for calibration (ro).

Get Method:: unreachable(...)

cursorid

Get Method:: unreachable(...)

eccentricity

Get Method:: unreachable(...)

inertia

Get Method:: unreachable(...)

lastdownpos

The initial position of the cursor. Useful for implementing dragging.

Get Method:: unreachable(...)

majoraxis

Major axis of an ellipse that is similar to the blob (ro).

Get Method:: unreachable(...)

minoraxis

Minor axis of an ellipse that is similar to the blob (ro).

Get Method:: unreachable(...)

node

The node that the event handler was declared in (ro).

Get Method:: unreachable(...)

orientation

Angle of the blob. For hovering hands, this is roughly the direction of the hand (ro).

Get Method:: unreachable(...)

pos

Position in the global coordinate system (ro).

Get Method:: unreachable(...)

source

TOUCH for actual touches, TRACK for hands above the surface or generic tracking.

Get Method:: unreachable(...)

speed

Current speed of the blob in pixels per millisecond as a 2-component vector (ro).

Get Method:: unreachable(...)

x

x position in the global coordinate system (ro).

Get Method:: unreachable(...)

y

y position in the global coordinate system (ro).

Get Method:: unreachable(...)