SoSFEngine

Methods from class SoSFEngine:

static SoType getClassTypeId()

virtual void getTypeId() const

SoEngine * getValue() const

SoEngine * operator =(SoEngine * newValue)

void setValue(SoEngine * newValue)

int operator ==(const SoSFEngine &f) const

int operator !=(const SoSFEngine &f) const

Methods from class SoField:

void setIgnored(SbBool ignore)

SbBool isIgnored() const

SbBool isDefault() const

virtual SbBool isOfType(SoType type) const

SbBool set(const char *valueString)

void get(SbString &valueString)

void touch()

SbBool connectFrom(SoField *fromField)

SbBool connectFrom(SoEngineOutput *fromEngine)

void disconnect()

SbBool isConnected() const

SbBool isConnectedFromField() const

SbBool getConnectedField(SoField *&writingField) const

SbBool isConnectedFromEngine() const

SbBool getConnectedEngine(SoEngineOutput *&engineOutput) const

void enableConnection(SbBool flag)

SbBool isConnectionEnabled() const

int getForwardConnections(SoFieldList &list) const

SoFieldContainer * getContainer() const

This field maintains a pointer to an SoEngine instance, correctly maintaining its reference count.

SoSFEngines are written to file as the engine they are pointing to. For example:

mySoSFEngineField ElapsedTime {}

is an SoSFEngine field named 'mySoSFEngineField', pointing to an SoElapsedTime engine. If the engine is used elsewhere, the regular DEF/USE instancing mechanism applies:

anotherSoSFEngineField USE calculator

is an SoSFEngine field that points to a engine named 'calculator' that was DEF'ed earlier in the scene.