ValueSensor Class Reference

ValueSensor listens for changes in value of the target device (mouse motion by default). More...

Inheritance diagram for ValueSensor:

List of all members.

Public Member Functions
virtual bool	handleEvent (const Event &event)
	Callback function that is implemented by the callee.

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Detailed Description

ValueSensor listens for changes in value of the target device (mouse motion by default).

Authoring Interface:

        ValueSensor {
                // from DeviceSensorNode
            field       SFBoolean   enabled         true
            field       SFURL       device          ""
            field       MFString    valueOfInterest [ ]
       
            eventOut    MFFloat     value
        }

Parameters:

	enabled	specifies whether this node will emit any events. Default value: true
	device	provides a string identifying the device this sensor is listening to. Default value: ""
	valueOfInterest	specifies a list of one or more values from the selected device that will cause the value eventOut to fire. If more than one value is given this node will fire when any of those values change. The value event will contain an array containing the most recent value for each element specified in the valueOfInterest array, in the order given. Each element of this array must be a single recognized value enumerant, such as "MOUSEX" or "JOYSTICKY". Default value: [ ]
	value	emits an array of floating point values. Each element is the most recent value received from the valuator specified in the valueOfInterest array.

Functionality:

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The valuator string constants defined by default include:

"MOUSEX"	Mouse X location
"MOUSEY"	Mouse Y location

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Member Function Documentation

virtual bool handleEvent (  const Event &  event  )  [virtual]

Callback function that is implemented by the callee. Parameters: event  specifies the time of the event. Event time will be the same for events occurring in the same render phase For example, PREUPDATE, POSTUPDATE, PRERENDER and POSTRENDER event callbacks will all pass the same event time for the same frame. Returning stop Emma from calling the rest of the handlers for this event If you return true, Emma will keep on calling rest of the handlers for this event Reimplemented from DeviceSensorNode.

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