NAME

       SoOneShot -

       The SoOneShot class is a timer that runs for a configurable time and then stops.

SYNOPSIS

       #include <Inventor/engines/SoOneShot.h>

       Inherits SoEngine.

   Public Types
       enum Flags { RETRIGGERABLE =1, HOLD_FINAL =2 }

   Public Member Functions
       virtual SoType getTypeId (void) const
           Returns the type identification of an object derived from a class inheriting SoBase.
           This is used for run-time type checking and 'downward' casting.
       virtual const SoFieldData * getFieldData (void) const
       virtual const SoEngineOutputData * getOutputData (void) const
       SoOneShot (void)

   Static Public Member Functions
       static SoType getClassTypeId (void)
       static void * createInstance (void)
       static void initClass (void)

   Public Attributes
       SoSFTime timeIn
       SoSFTime duration
       SoSFTrigger trigger
       SoSFBitMask flags
       SoSFBool disable
       SoEngineOutput timeOut
       SoEngineOutput isActive
       SoEngineOutput ramp

   Protected Member Functions
       virtual ~SoOneShot (void)

   Static Protected Member Functions
       static const SoFieldData ** getInputDataPtr (void)
       static const SoEngineOutputData ** getOutputDataPtr (void)

   Additional Inherited Members

Detailed Description

       The SoOneShot class is a timer that runs for a configurable time and then stops.

Member Enumeration Documentation

   enum SoOneShot::Flags
       There are two flags available: RETRIGGERABLE will cause the engine to restart at 0 if the
       SoOneShot::trigger field is activated during a run (otherwise the trigger is ignored
       during runs).

       HOLD_FINAL will make the engine outputs keep their values after a run, instead of
       resetting them.

Constructor & Destructor Documentation

   SoOneShot::SoOneShot (void)
       Default constructor.

   SoOneShot::~SoOneShot (void) [protected],  [virtual]
       Destructor is protected to avoid explicit destruction.

Member Function Documentation

   SoType SoOneShot::getTypeId (void) const [virtual]
       Returns the type identification of an object derived from a class inheriting SoBase. This
       is used for run-time type checking and 'downward' casting. Usage example:

       void foo(SoNode * node)
       {
         if (node->getTypeId() == SoFile::getClassTypeId()) {
           SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
         }
       }

       For application programmers wanting to extend the library with new nodes, engines,
       nodekits, draggers or others: this method needs to be overridden in all subclasses. This
       is typically done as part of setting up the full type system for extension classes, which
       is usually accomplished by using the pre-defined macros available through for instance
       Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes),
       Inventor/engines/SoSubEngine.h (for engine classes) and so on.

       For more information on writing Coin extensions, see the class documentation of the
       toplevel superclasses for the various class groups.

       Implements SoBase.

   const SoFieldData * SoOneShot::getFieldData (void) const [virtual]
       Returns a pointer to the class-wide field data storage object for this instance. If no
       fields are present, returns NULL.

       Reimplemented from SoFieldContainer.

   const SoEngineOutputData * SoOneShot::getOutputData (void) const [virtual]
       This API member is considered internal to the library, as it is not likely to be of
       interest to the application programmer.

       Implements SoEngine.

Member Data Documentation

   SoSFTime SoOneShot::timeIn
       Input time source. Connected by default to the realTime global field, but the application
       programmer is free to change this to any other time source.

   SoSFTime SoOneShot::duration
       The time the engine should run for when it is triggered. Defaults to 1 second.

   SoSFTrigger SoOneShot::trigger
       A pulse on this input field starts the engine.

   SoSFBitMask SoOneShot::flags
       Control flags. See SoOneShot::Flags.

   SoSFBool SoOneShot::disable
       Set to TRUE to disable the engine completely.

   SoEngineOutput SoOneShot::timeOut
       (SoSFTime) Output time. Will run from 0 to the value of SoOneShot::duration.

   SoEngineOutput SoOneShot::isActive
       (SoSFBool) TRUE while the engine is running, FALSE otherwise.

   SoEngineOutput SoOneShot::ramp
       (SoSFFloat) Will run from 0 to 1 during the active period.

Author

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