Class SoTimerSensor

  • Direct Known Subclasses:

    public class SoTimerSensor
    extends SoTimerQueueSensor
    Sensor that triggers repeatedly at regular intervals. Timer sensors trigger their function at regular intervals. A base time may be specified, which causes the sensor to be triggered at multiples of the interval starting from the base time. The base time is an absolute time, as returned by SbTime.getTimeOfDay(). For example, a timer might be set up to call its function every second on the second by setting the base time to SbTime (0.0) and the interval to SbTime (1.0) . Timers are guaranteed to be triggered only once when the timer queue is processed, so if the application only processes the timer queue once every 5 seconds (because it is busy doing something else) the once-a-second sensor's function will only be called once every 5 seconds.

    If no base time is set, then the function will be rescheduled from the present time using the interval value.

    When a base time has been specified, SoTimers always schedule themselves to be triggered the next multiple of the interval time after the base time. For example, if the once-a-second sensor is triggered at time 2.9 (because the application way busy doing something at time 2.0 and didn't get around to processing the sensor queue for a while) it will reschedule itself to go off at time 3.0, not at time 3.9. On the other hand, if the base time had never been set, then the sensor would be scheduled for time 3.9.

    See Also:
    SoOneShotSensor, SoAlarmSensor, SoTimerQueueSensor, SbTime
    • Constructor Detail

      • SoTimerSensor

        public SoTimerSensor​(java.lang.Runnable task)
        Build a new timer sensor with the task to be executed when the sensor is triggered.
      • SoTimerSensor

        public SoTimerSensor()
        Default constructor.
    • Method Detail

      • setBaseTime

        public void setBaseTime​(SbTime base)
        Sets the base time. The default base time is the time when the sensor is scheduled or rescheduled.
      • getBaseTime

        public SbTime getBaseTime()
        Gets the base time.
      • setInterval

        public void setInterval​(SbTime intvl)
        Sets the interval. The default interval is 1/30th of a second.
      • getInterval

        public SbTime getInterval()
        Gets the interval.