SoElapsedTime(3)

NAME
SoElapsedTime - The SoElapsedTime class is a controllable time source engine.

SYNOPSIS

#include <Inventor/engines/SoElapsedTime.h>

Inherits SoEngine.

  Public Member Functions
virtual SoType getTypeId (void) const
virtual const SoFieldData * getFieldData (void) const
virtual const SoEngineOutputData * getOutputData (void) const
SoElapsedTime (void)
Public Member Functions inherited from SoEngine
void evaluateWrapper (void)
virtual int getOutputs (SoEngineOutputList &l) const
SoEngineOutput * getOutput (const SbName &outputname) const
SbBool getOutputName (const SoEngineOutput *output, SbName &outputname) const
SbBool isNotifying (void) const
virtual void notify (SoNotList *nl)
SoEngine * copy (void) const
virtual SoFieldContainer * copyThroughConnection (void) const
SbBool shouldCopy (void) const
Public Member Functions inherited from SoFieldContainer
void setToDefaults (void)
SbBool hasDefaultValues (void) const
SbBool fieldsAreEqual (const SoFieldContainer *container) const
void copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
SbBool set (const char *const fielddata)
void get (SbString &fielddata)
virtual int getFields (SoFieldList &l) const
virtual int getAllFields (SoFieldList &l) const
virtual SoField * getField (const SbName &name) const
virtual SoField * getEventIn (const SbName &name) const
virtual SoField * getEventOut (const SbName &name) const
SbBool getFieldName (const SoField *const field, SbName &name) const
SbBool enableNotify (const SbBool flag)
SbBool isNotifyEnabled (void) const
SbBool set (const char *fielddata, SoInput *input)
void get (SbString &fielddata, SoOutput *out)
virtual SbBool validateNewFieldValue (SoField *field, void *newval)
virtual void addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
SbBool getIsBuiltIn (void) const
virtual void copyContents (const SoFieldContainer *from, SbBool copyconnections)
virtual void getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
void setUserData (void *userdata) const
void * getUserData (void) const
Public Member Functions inherited from SoBase
void ref (void) const
void unref (void) const
void unrefNoDelete (void) const
int32_t getRefCount (void) const
void touch (void)
SbBool isOfType (SoType type) const
Returns TRUE if the type of this object is either of the same type or inherited from type.
virtual SbName getName (void) const
virtual void setName (const SbName &newname)
virtual void startNotify (void)
void addAuditor (void *const auditor, const SoNotRec::Type type)
void removeAuditor (void *const auditor, const SoNotRec::Type type)
const SoAuditorList & getAuditors (void) const
SbBool shouldWrite (void)
void assertAlive (void) const

  Static Public Member Functions
static SoType getClassTypeId (void)
static void * createInstance (void)
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
Static Public Member Functions inherited from SoEngine
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static void initClasses (void)
static SoType getClassTypeId (void)
This static method returns the SoType object associated with objects of this class.
static SoEngine * getByName (const SbName &name)
static int getByName (const SbName &name, SoEngineList &el)
Static Public Member Functions inherited from SoFieldContainer
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static SoType getClassTypeId (void)
This static method returns the SoType object associated with objects of this class.
static void cleanupClass (void)
static void initCopyDict (void)
static void addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
static SoFieldContainer * checkCopy (const SoFieldContainer *orig)
static SoFieldContainer * findCopy (const SoFieldContainer *orig, const SbBool copyconnections)
static void copyDone (void)
Static Public Member Functions inherited from SoBase
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static SoType getClassTypeId (void)
This static method returns the SoType object associated with objects of this class.
static void addName (SoBase *const base, const char *const name)
static void removeName (SoBase *const base, const char *const name)
static void incrementCurrentWriteCounter (void)
static void decrementCurrentWriteCounter (void)
static SoBase * getNamedBase (const SbName &name, SoType type)
static int getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
static SbBool read (SoInput *input, SoBase *&base, SoType expectedtype)
static void setInstancePrefix (const SbString &c)
static void setTraceRefs (SbBool trace)
static SbBool getTraceRefs (void)
static SbBool connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
static SbBool readRoute (SoInput *input)

  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)
Protected Member Functions inherited from SoEngine
SoEngine (void)
virtual ~SoEngine (void)
virtual SbBool readInstance (SoInput *in, unsigned short flags)
void writeOutputTypes (SoOutput *out)
Protected Member Functions inherited from SoFieldContainer
SoFieldContainer (void)
virtual ~SoFieldContainer ()
Protected Member Functions inherited from SoBase
SoBase (void)
virtual ~SoBase ()
SbBool hasMultipleWriteRefs (void) const
SbBool writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
void writeFooter (SoOutput *out) const
virtual const char * getFileFormatName (void) const
virtual SoNotRec createNotRec (void)

  Static Protected Member Functions
static const SoFieldData ** getInputDataPtr (void)
static const SoEngineOutputData ** getOutputDataPtr (void)
Static Protected Member Functions inherited from SoEngine
static const SoFieldData ** getInputDataPtr (void)
static const SoEngineOutputData ** getOutputDataPtr (void)
Static Protected Member Functions inherited from SoBase
static uint32_t getCurrentWriteCounter (void)
static void staticDataLock (void)
static void staticDataUnlock (void)

  Additional Inherited Members
Protected Types inherited from SoBase
enum BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }
Protected Attributes inherited from SoFieldContainer
SbBool isBuiltIn

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

  SoType SoElapsedTime::getClassTypeId (void ) [static]
This static method returns the SoType object associated with objects of this class.

  SoType SoElapsedTime::getTypeId (void ) const [virtual]
Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime type checking and "downward" casting.

Implements SoBase.

  const SoFieldData ** SoElapsedTime::getInputDataPtr (void ) [static], [protected]
Returns the SoFieldData class which holds information about inputs in this engine.

  const SoEngineOutputData ** SoElapsedTime::getOutputDataPtr (void ) [static], [protected]
Returns the SoEngineOutputData class which holds information about the outputs in this engine.

  const SoFieldData * SoElapsedTime::getFieldData (void ) const [virtual]
Returns the SoFieldData class which holds information about inputs in this engine.

Reimplemented from SoFieldContainer.

  const SoEngineOutputData * SoElapsedTime::getOutputData (void ) const [virtual]
Returns the SoEngineOutputData class which holds information about the outputs in this engine.

Implements SoEngine.

  void * SoElapsedTime::createInstance (void ) [static]
Creates a new instance of the class type corresponding to the SoType object.

  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

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