tsTime

class tsTime : public SoNode

Node storing time and speed for synchronized media feedback

Inheritance:

Public Methods
SoINTERNAL static void initClass(): Makes this class known to the OpenInventor type system.
tsTime(): Constructor
virtual ~tsTime(): Destructor

Public

Action behavior:

virtual void doAction(SoAction *action): does default action behaviour. Sets time/speed in tsTimeElement.
virtual void GLRender(SoGLRenderAction *action): does GLrender begaviour, calls doAction()
virtual void getBoundingBox(SoGetBoundingBoxAction *action): calls doAction()
virtual void callback(SoCallbackAction *action): calls doAction()
virtual void pick(SoPickAction *action): calls doAction()

New Fields

SoSFTime time: Field storing feedback time. Changing accordingly content of field 'speed' .
SoSFFloat speed: Field storing feedback speed. This field affects the automatic updating of field 'time'.

Protected Fields
SoSFTime* _gobalRealTime: global time field, NULL if not existing.

Protected

Changed Values

float _changedSpeed
stamp_t _changedUST: UST of last changing. Feedback should be addapted to meet this!
SbBool _timeChanged: Flag, to remember if "time" has changed.
SbBool _speedChanged: Flag, to remember if "speed" has changed.

Field-Sensors and CBs.

SoTimerSensor updateTimeFieldSensor: This sensor is scheduled frequently (TSTIME_UPDATE_FREQUENCY Hz), when 'speed' field != 0
static void updateTimeFieldCB(void *userData, SoSensor* sensor): This CB is frequently called from the updateTimeFieldSensor of type SoTimerSensor to increment the 'time' field
SoFieldSensor _timeFldSensor
static void _timeFldChangedCB(void *userData, SoSensor* sensor): Called immediately after field 'time' has been changed. Sets time stamp of this changing if content has really changed.
SoFieldSensor _speedFldSensor
static void _speedFldChangedCB(void *userData, SoSensor* sensor): Called immediately after field 'speed' has been changed. Sets time stamp of this changing if content has really changed.

Last changes:

float _lastSpeed
stamp_t _lastUST: Time stamp when the clock was valid last time!
SbBool _lastValid

Private Methods
SO_NODE_HEADER(tsTime)

Documentation

Node storing time and speed for synchronized media feedback. A node of this class stores the properties time and speed for feedback of tsKit feedback nodes. It garants a consistent setting of these information, including a UST (Unified System Time) stamp of the time, when the time or speed has been changed.
When field 'speed' != 0.0 (not stopped) 'time' field is automatically updated according to the content of field 'speed'.
ACTION BEHAVIOR:

Sets 'time', 'speed', a time stamp and a reference to itself in the tsTimeElement.

SO_NODE_HEADER(tsTime)

New Fields SoSFTime time Field storing feedback time. Changing accordingly content of field 'speed' . SoSFFloat speed Field storing feedback speed. This field affects the automatic updating of field 'time'.

tsTime()