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NAME

       SoElapsedTime -

       The SoElapsedTime class is a controllable time source engine.

       The additional functionality provided by this engine versus just
       connecting to the realTime global field is the ability to control the
       speed of the time source plus logic to reset, stop and restart it.

SYNOPSIS

       #include <Inventor/engines/SoElapsedTime.h>

       Inherits SoEngine.

   Public Member Functions
       SoElapsedTime (void)

   Static Public Member Functions
       static void initClass (void)

   Public Attributes
       SoSFTime timeIn
       SoSFFloat speed
       SoSFBool on
       SoSFBool pause
       SoSFTrigger reset
       SoEngineOutput timeOut

   Protected Member Functions
       virtual ~SoElapsedTime (void)
       virtual void writeInstance (SoOutput *out)

Detailed Description

       The SoElapsedTime class is a controllable time source engine.

       The additional functionality provided by this engine versus just
       connecting to the realTime global field is the ability to control the
       speed of the time source plus logic to reset, stop and restart it.

       Simple usage example, combined with SoComposeRotation:

         #Inventor V2.1 ascii

         Separator {
            Transform {
               rotation =
               ComposeRotation { axis 0 1 0  angle =
                  ElapsedTime { }.timeOut
               }.rotation
            }
            Cube { }
         }

       See also:
           SoTimeCounter

Constructor & Destructor Documentation

   SoElapsedTime::SoElapsedTime (void) Default constructor.
   SoElapsedTime::~SoElapsedTime (void) [protected, virtual] Destructor.

Member Function Documentation

   void SoElapsedTime::initClass (void) [static] Sets up initialization for
       data common to all instances of this class, like submitting necessary
       information to the Coin type system.
       Reimplemented from SoEngine.

   void SoElapsedTime::writeInstance (SoOutput * out) [protected, virtual]
       Writes all the fields contained in this instance to the output stream
       within out.
       This method is solely called from the write methods of fields.

       Either from SoField if the write is done because of a field-to-field
       connection, or from one of the fields which may actually write
       SoFieldContainer instances, i.e. SoSFNode, SoMFNode, SoSFEngine,
       SoMFEngine, SoSFPath and SoMFPath.

       This method, in addition to the ordinary write() method of SoNode,
       needs to be present since the fields don’t have a write action instance
       in their writeValue() method, and writeInstance() will create a new
       SoWriteAction and call continueToApply() on it.

       Reimplemented from SoEngine.

Member Data Documentation

   SoSFTime SoElapsedTime::timeIn Input time value. Default connected to the
       global realTime field.
   SoSFFloat SoElapsedTime::speed Decides how fast the timer should run,
       measured versus ’real time’ from the timeIn field. Default value is
       1.0.
       A negative value makes the time go backward.

   SoSFBool SoElapsedTime::on Shuts timer on and off. Will restart at the same
       position.
   SoSFBool SoElapsedTime::pause Shuts timer on and off. Will restart at the
       position it would have been if not paused (i.e. doesn’t ’lose time’).
   SoSFTrigger SoElapsedTime::reset Restart timer at 0.
   SoEngineOutput SoElapsedTime::timeOut (SoSFTime) Output time value. Starts
       at 0.

Author

       Generated automatically by Doxygen for Coin from the source code.