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java.lang.Object | +--com.sun.j3d.utils.behaviors.sensor.SensorInputAdaptor | +--com.sun.j3d.utils.behaviors.vp.WandViewBehavior.ListenerBase | +--com.sun.j3d.utils.behaviors.vp.WandViewBehavior.ScaleListener2D
Implements a 2D valuator listener that scales the view platform. Pushing the valuator forwards gives the appearance of the virtual world increasing in size, while pushing the valuator backwards makes the virtual world appear to shrink. The X and Y values from the valuator should have a continuous range from -1.0 to +1.0, although the scale speed can be adjusted to compensate for a different range.
This listener will work in conjunction with a 6DOF sensor if supplied
in the constructor. If setTransformCenterSource
has been
called with the value HOTSPOT
, then scaling is about the
6DOF sensor's hotspot; otherwise, the scaling center is the value set
by setTransformCenter
.
WandViewBehavior.setReadAction2D(int)
,
WandViewBehavior.setButtonAction2D(int, int)
,
WandViewBehavior.setScaleSpeed(double, int)
,
WandViewBehavior.setTransformCenter(javax.vecmath.Point3d)
,
WandViewBehavior.setThreshold2D(double)
,
WandViewBehavior.setMatrixIndices2D(int, int)
Field Summary |
Fields inherited from class com.sun.j3d.utils.behaviors.vp.WandViewBehavior.ListenerBase |
sensorToTracker, sensorToVworld, trackerToVworld, viewPlatformToVworld |
Constructor Summary | |
WandViewBehavior.ScaleListener2D(Sensor sensor2D,
Sensor sensor6D)
Construct an instance of this class with the specified sensors. |
Method Summary | |
void |
dragged(SensorEvent e)
This method is called with each invocation of the dispatchEvents method of SensorEventAgent
if any button bound to the listener is down and has not changed
state since the last invocation. |
protected void |
endAction(Sensor s)
Ends the action. |
protected void |
initAction(Sensor s)
Initializes the listener action. |
void |
pressed(SensorEvent e)
This method is called when a sensor's button is pressed. |
void |
read(SensorEvent e)
This method is called each time the dispatchEvents
method of SensorEventAgent is called and none of a
sensor's buttons have been handled by a button listener. |
void |
released(SensorEvent e)
This method is called when a sensor's button is released. |
Methods inherited from class com.sun.j3d.utils.behaviors.vp.WandViewBehavior.ListenerBase |
conditionViewScale, getPhysicalToViewPlatformScale, getPhysicalToVirtualScale, isActive, transformAboutCenter, translateTransform |
Methods inherited from class com.sun.j3d.utils.behaviors.sensor.SensorInputAdaptor |
clicked |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public WandViewBehavior.ScaleListener2D(Sensor sensor2D, Sensor sensor6D)
sensor2D
- the 2D valuator whose Y value drive the scalingsensor6D
- the 6DOF sensor to use if the rotation/scale center
source is HOTSPOT
; may be null
Method Detail |
protected void initAction(Sensor s)
WandViewBehavior.ListenerBase
pressed
or when a 2D
valuator exits the deadzone threshold.
initAction
in class WandViewBehavior.ListenerBase
s
- reference to a 6DOF sensor if used by the listener; may
be null
protected void endAction(Sensor s)
WandViewBehavior.ListenerBase
released
or when a 2D valuator enters the deadzone
threshold.
endAction
in class WandViewBehavior.ListenerBase
s
- reference to a 6DOF sensor if used by the listener; may
be null
public void read(SensorEvent e)
SensorReadListener
dispatchEvents
method of SensorEventAgent
is called and none of a
sensor's buttons have been handled by a button listener. The
sensor read value has not necessarily changed since the last read
event.
read
in interface SensorReadListener
read
in class SensorInputAdaptor
e
- the sensor eventpublic void pressed(SensorEvent e)
SensorButtonListener
pressed
in interface SensorButtonListener
pressed
in class WandViewBehavior.ListenerBase
e
- the sensor eventpublic void released(SensorEvent e)
SensorButtonListener
released
in interface SensorButtonListener
released
in class WandViewBehavior.ListenerBase
e
- the sensor eventpublic void dragged(SensorEvent e)
SensorButtonListener
dispatchEvents
method of SensorEventAgent
if any button bound to the listener is down and has not changed
state since the last invocation. The sensor value has not
necessarily changed from the last drag event.
dragged
in interface SensorButtonListener
dragged
in class SensorInputAdaptor
e
- the sensor event
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