SoEngineOutput - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 4.0.0
Note : Coin

NAMESoEngineOutput − The SoEngineOutput class is the output slots in SoEngine instances​.

SYNOPSIS
#include <Inventor/engines/SoEngine​.h>

Public Member FunctionsSoEngineOutput (void)
virtual ~SoEngineOutput (void)
SoType getConnectionType (void) const
int getForwardConnections (SoFieldList &fl) const
void enable (const SbBool flag)
SbBool isEnabled (void) const
SoEngine * getContainer (void) const
SoNodeEngine * getNodeContainer (void) const
SbBool isNodeEngineOutput (void) const
void setContainer (SoEngine *engine)
void setNodeContainer (SoNodeEngine *nodeengine)
void addConnection (SoField *f)
void removeConnection (SoField *f)
int getNumConnections (void) const
SoField * operator[] (int i) const
void prepareToWrite (void) const
void doneWriting (void) const
void touchSlaves (SoNotList *nl, SbBool donotify)
SoFieldContainer * getFieldContainer (void)

Detailed DescriptionThe SoEngineOutput class is the output slots in SoEngine instances​. SoEngineOutput has methods for convenient handling of the connections made from SoEngine objects to SoField objects​. See also SoEngine, SoField

Constructor & Destructor Documentation

SoEngineOutput::SoEngineOutput (void)Constructor​. The SoEngineOutput will initially not be contained within an SoEngine nor will it have any slave fields attached​. See also setContainer()

SoEngineOutput::~SoEngineOutput (void) [virtual]Destructor​.

Member Function Documentation

SoType SoEngineOutput::getConnectionType (void) constReturns the type of the engine output​.

int SoEngineOutput::getForwardConnections (SoFieldList & fl) constAdds all slave fields connected to this output to fl​. Returns the number of slaves​. See also addConnection() removeConnection()

void SoEngineOutput::enable (const SbBool flag)Sets the enabled flag​. If output is disabled, the fields connected to this output will not be changed when the engine is evaluated​. See also isEnabled()​.

SbBool SoEngineOutput::isEnabled (void) constReturns status of the enabled flag​. See also enable()​.

SoEngine * SoEngineOutput::getContainer (void) constReturns the engine containing this output​. If the engine containing this output is a NodeEngine, this method returns NULL​. See also setContainer(), getNodeContainer()

SoNodeEngine * SoEngineOutput::getNodeContainer (void) constReturns the node engine containing this output​. If the engine containing this output is not a NodeEgine, this method returns NULL​. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2​.1 API​.
See also setNodeContainer(), getContainer() Since Coin 2​.0

SbBool SoEngineOutput::isNodeEngineOutput (void) constReturns TRUE if the container is a NodeEngine​. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2​.1 API​.
See also getNodeContainer(), getContainer() Since Coin 2​.0

void SoEngineOutput::setContainer (SoEngine * engine)Sets the engine containing this output​. See also getContainer()

void SoEngineOutput::setNodeContainer (SoNodeEngine * nodeengine)Sets the NodeEngine containing this output​. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2​.1 API​.
See also getNodeContainer() Since Coin 2​.0

void SoEngineOutput::addConnection (SoField * f)Adds f to the list of connections from this output​. Adds 1 to the reference count of the container engine​. See also removeConnection(), getForwardConnections()

void SoEngineOutput::removeConnection (SoField * f)Removes f from the list of connections from this output​. Subtracts 1 from the reference count of the container engine​. If the reference count reaches zero (which will happen if this was the last connection and the application programmer did not explicitly ref the engine), the container engine will be deallocated​. See also addConnection(), getForwardConnections()

int SoEngineOutput::getNumConnections (void) constReturns the number of fields in the list of connections​. See also operator[], addConnection()

SoEngineOutput * SoEngineOutput::operator[] (int i) constReturns the field at index i in the list of connections​. Please note that this might not be the same field as the one the output was originally connected to, since a field converted might have been inserted to converted the output to match the field type​. See also getNumConnections() Returns element at idx​. Will automatically expand the size of the internal array if idx is outside the current bounds of the list​. The values of any additional pointers are then set to NULL​.

void SoEngineOutput::prepareToWrite (void) constDisables notifications on fields connected to this output​. This is done before the engine is evaulated, since the fields we are going to write into have already been notified​. See also doneWriting()

void SoEngineOutput::doneWriting (void) constRestores the notification flags on fields connected to this output after evaluating​. See also prepareToWrite()

void SoEngineOutput::touchSlaves (SoNotList * nl, SbBool donotify)Notify the fields attached to this engine output that the output value has changed​. If donotify is TRUE, propagate the notification to the fields​. Otherwise just mark the fields 'dirty' for re-evalution​. Note that this method is not part of the original Open Inventor API​.

SoFieldContainer * SoEngineOutput::getFieldContainer (void)Convenience method that returns a field container​. This method can be used both for NodeEngine and Engine outputs​. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2​.1 API​.
Since Coin 2​.0

AuthorGenerated automatically by Doxygen for Coin from the source code​.
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Johanes Gumabo
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