com.openinventor.inventor.gestures.recognizers

Class SoScaleGestureRecognizer

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.gestures.recognizers.SoGestureRecognizer

com.openinventor.inventor.gestures.recognizers.SoScaleGestureRecognizer

public class SoScaleGestureRecognizer
extends SoGestureRecognizer

Scale (pinch) gesture recognizer. SoScaleGestureRecognizer analyses touch events and recognizes a scale (two finger pinch) gesture. It returns an SoScaleGestureEvent (pinch) event if this gesture is recognized. The scale event contains the scale factor between the current state and the initial one. This recognizer generates a BEGIN event, followed by DELTA events and finishing with an END event (SoGestureEvent.getGestureState()).

Note:

• In order to get touch events for the gesture recognizer(s) to recognize, the application must explicitly register a touch screen device (SoWinTouchScreen, SoQtTouchScreen, etc).
• In order to get gesture events, the application must explicitly register gesture recognizers with the touch screen device's touch manager (SoTouchManager).

See also:

SoGestureRecognizer, SoRotateGestureRecognizer, SoDoubleTapGestureRecognizer, SoLongTapGestureRecognizer, SoScaleGestureEvent

Nested Class Summary

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor and Description
SoScaleGestureRecognizer() Constructor.

Method Summary

Methods inherited from class com.openinventor.inventor.gestures.recognizers.SoGestureRecognizer

recognize

Methods inherited from class com.openinventor.inventor.Inventor

dispose, getAddress, getNativeResourceHandle, startInternalThreads, stopInternalThreads

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SoScaleGestureRecognizer

public SoScaleGestureRecognizer()

Constructor.