SoNodeEngine(3)

📦 version 3.1.3, in fedora 43, fedora 44

🌸 SoNodeEngine(3) 🌸

okay so hi bestie 💖 this is the SoNodeEngine(3) page from the Library Functions Manual, and it's a big one, so we're doing it in two parts. buckle up, hydrate, and let's get into it ✨

👑 NAME 👑

SoNodeEngine — SoNodeEngine is the base class for Coin node engines. periodt.

✨ SYNOPSIS ✨

#include <Inheritor/engines/SoNodeEngine.h>

wait no, let me not do that to you 😭 it's literally:

#include <Inventor/engines/SoNodeEngine.h>

Inherits SoNode.

Inherited by SoVRMLInterpolator, and SoVRMLTimeSensor.

🫶 Public Member Functions

  • void evaluateWrapper (void)
  • virtual int getOutputs (SoEngineOutputList &l) const
  • SoEngineOutput * getOutput (const SbName &outputname) const
  • SbBool getOutputName (const SoEngineOutput *output, SbName &outputname) const
  • virtual const SoEngineOutputData * getOutputData (void) const =0
  • SbBool isNotifying (void) const
  • virtual void notify (SoNotList *nl)
  • virtual void writeInstance (SoOutput *out)

💫 Public Member Functions inherited from SoNode

  • void setOverride (const SbBool state)
  • SbBool isOverride (void) const
  • void setNodeType (const NodeType type)
  • NodeType getNodeType (void) const
  • virtual SoNode * copy (SbBool copyconnections=FALSE) const
  • virtual SbBool affectsState (void) const
  • virtual void doAction (SoAction *action)
  • virtual void GLRender (SoGLRenderAction *action)
  • virtual void GLRenderBelowPath (SoGLRenderAction *action)
  • virtual void GLRenderInPath (SoGLRenderAction *action)
  • virtual void GLRenderOffPath (SoGLRenderAction *action)
  • virtual void callback (SoCallbackAction *action)
  • virtual void getBoundingBox (SoGetBoundingBoxAction *action)
  • virtual void getMatrix (SoGetMatrixAction *action)
  • virtual void handleEvent (SoHandleEventAction *action)
  • virtual void pick (SoPickAction *action)
  • virtual void rayPick (SoRayPickAction *action)
  • virtual void search (SoSearchAction *action)
  • virtual void write (SoWriteAction *action)
  • virtual void audioRender (SoAudioRenderAction *action)
  • virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
  • virtual void grabEventsSetup (void)
  • virtual void grabEventsCleanup (void)
  • virtual void startNotify (void)
  • uint32_t getNodeId (void) const
  • virtual SoChildList * getChildren (void) const
  • virtual SoNode * addToCopyDict (void) const
  • virtual void copyContents (const SoFieldContainer *from, SbBool copyconnections)
  • virtual SoFieldContainer * copyThroughConnection (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 const SoFieldData * getFieldData (void) const
  • 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)
  • virtual SoType getTypeId (void) const =0
  • SbBool isOfType (SoType type) const
  • virtual SbName getName (void) const
  • virtual void setName (const SbName &newname)
  • 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 void initClass (void)
  • static SoType getClassTypeId (void)

🌈 Static Public Member Functions inherited from SoNode

  • static uint32_t getCompatibilityTypes (const SoType &nodetype)
  • static SoType getClassTypeId (void)
  • static SoNode * getByName (const SbName &name)
  • static int getByName (const SbName &name, SoNodeList &l)
  • static void initClass (void)
  • static void initClasses (void)
  • static uint32_t getNextNodeId (void)
  • static int getActionMethodIndex (const SoType type)
  • static void getBoundingBoxS (SoAction *action, SoNode *node)
  • static void GLRenderS (SoAction *action, SoNode *node)
  • static void callbackS (SoAction *action, SoNode *node)
  • static void getMatrixS (SoAction *action, SoNode *node)
  • static void handleEventS (SoAction *action, SoNode *node)
  • static void pickS (SoAction *action, SoNode *node)
  • static void rayPickS (SoAction *action, SoNode *node)
  • static void searchS (SoAction *action, SoNode *node)
  • static void writeS (SoAction *action, SoNode *node)
  • static void audioRenderS (SoAction *action, SoNode *node)
  • static void getPrimitiveCountS (SoAction *action, SoNode *node)

🌈 Static Public Member Functions inherited from SoFieldContainer

  • static void initClass (void)
  • static SoType getClassTypeId (void)
  • 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)
  • static SoType getClassTypeId (void)
  • 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)

🎀 Protected Member Functions

  • SoNodeEngine (void)
  • virtual ~SoNodeEngine (void)
  • virtual void evaluate (void)=0
  • virtual SbBool readInstance (SoInput *in, unsigned short flags)
  • virtual void inputChanged (SoField *which)
  • void writeOutputTypes (SoOutput *out)

🦋 Protected Member Functions inherited from SoNode

  • SoNode (void)
  • virtual ~SoNode ()

🦋 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

🍓 Static Protected Member Functions

  • static const SoFieldData ** getFieldDataPtr (void)
  • static const SoEngineOutputData ** getOutputDataPtr (void)

⭐ Static Protected Member Functions inherited from SoNode

  • static const SoFieldData ** getFieldDataPtr (void)
  • static void setNextActionMethodIndex (int index)
  • static int getNextActionMethodIndex (void)
  • static void incNextActionMethodIndex (void)
  • static void setCompatibilityTypes (const SoType &nodetype, const uint32_t bitmask)

⭐ Static Protected Member Functions inherited from SoBase

  • static uint32_t getCurrentWriteCounter (void)
  • static void staticDataLock (void)
  • static void staticDataUnlock (void)

💜 Additional Inherited Members

  • Public Types inherited from SoNode
    • enum NodeType { INVENTOR = 0x0000, VRML1 = 0x0001, VRML2 = 0x0002, INVENTOR_1 = 0x0004, INVENTOR_2_0 = 0x0008, INVENTOR_2_1 = 0x0010, INVENTOR_2_5 = 0x0020, INVENTOR_2_6 = 0x0040, COIN_1_0 = 0x0080, COIN_2_0 = 0x0100, EXTENSION = 0x0200, COIN_2_2 = 0x0400, COIN_2_3 = 0x0800, COIN_2_4 = 0x1000, INVENTOR_5_0 = 0x2000, COIN_2_5 = 0x4000, COIN_3_0 = 0x8000, INVENTOR_6_0 = 0x10000 }
  • Protected Types inherited from SoBase
    • enum BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }
  • Protected Attributes inherited from SoNode
    • uint32_t uniqueId
  • Protected Attributes inherited from SoFieldContainer
    • SbBool isBuiltIn
  • Static Protected Attributes inherited from SoNode
    • static uint32_t nextUniqueId = 1
    • static int nextActionMethodIndex = 0

🌟 Detailed Description 🌟

SoNodeEngine is the base class for Coin node engines.

okay so here's the tea ☕ node engines have the exact same functionality as normal engines, except that they inherit SoNode, which makes it possible to insert node engines in the scene graph. the way that they're nodes AND engines at the same time? iconic, honestly 💅

The main rationale for this class is to simplify the implementation of VRML interpolator nodes, which are in a sense engines embedded in the shape of ordinary nodes. iykyk 🦋

This abstract superclass will likely be of no interest to the Coin application programmer, and you can safely ignore it. (not me telling you to ignore the page you're literally reading rn 😭 but like, fr fr, it's the truth)

Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API. 🚨 don't go looking for it there bestie, it's not home.

🛠 Constructor & Destructor Documentation 🛠

SoNodeEngine::SoNodeEngine (void ) [protected]

Default constructor. ✨

SoNodeEngine::~SoNodeEngine (void ) [protected], [virtual]

Destructor. 💀

part 1 done, bestie — the lore continues in part 2 💖

✨ Member Function Documentation ✨

okay bestie, this is the part where we go through every single member function. no skips, no cuts, we're doing the whole thing. periodt. 💅

void SoNodeEngine::evaluateWrapper (void ) 🌀

Triggers an engine evaluation. That's it. It's the "go off, engine" button. ✨

int SoNodeEngine::getOutputs (SoEngineOutputList & l) const [virtual] 📋

Adds all outputs to l. Returns the number of outputs added to the list. So it's giving inventory check, but make it outputs. 💖

SoEngineOutput * SoNodeEngine::getOutput (const SbName & outputname) const 🔍

Returns the output with name outputname, or NULL if no such output exists. No output? NULL. It's a no from me. 🫶

SbBool SoNodeEngine::getOutputName (const SoEngineOutput * output, SbName & outputname) const 🏷️

Sets \outputname to the name of output. Returns FALSE if no such output is contained within the engine instance. So if it's not in the engine, it's a whole FALSE. 🙈

virtual const SoEngineOutputData * SoNodeEngine::getOutputData (void ) const [pure virtual] 🧬

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. So like, unless you're deep in the Coin guts, this is not your main character moment. 🧚

Implemented in SoVRMLColorInterpolator, SoVRMLCoordinateInterpolator, SoVRMLInterpolator, SoVRMLNormalInterpolator, SoVRMLOrientationInterpolator, SoVRMLPositionInterpolator, SoVRMLScalarInterpolator, and SoVRMLTimeSensor.

SbBool SoNodeEngine::isNotifying (void ) const 🔔

Returns whether we're in a notification process. This is needed to avoid double notification when an engine enables outputs during inputChanged(). So it's the vibe check for notifications. 👑

void SoNodeEngine::notify (SoNotList * l) [virtual] 📣

Notifies all auditors for this instance when changes are made. Like, "hey besties, something changed!" 💅

Reimplemented from SoNode.

Reimplemented in SoVRMLTimeSensor.

void SoNodeEngine::writeInstance (SoOutput * out) [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 SoNode.

virtual void SoNodeEngine::evaluate (void ) [protected], [pure virtual] 🧠

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. Again, internal business. Not for the casual scroll. 💀

SbBool SoNodeEngine::readInstance (SoInput * in, unsigned short flags) [protected], [virtual] 📥

This method is mainly intended for internal use during file import operations.

It reads a definition of an instance from the input stream in. The input stream state points to the start of a serialized / persistant representation of an instance of this class type.

TRUE or FALSE is returned, depending on if the instantiation and configuration of the new object of this class type went ok or not. The import process should be robust and handle corrupted input streams by returning FALSE.

flags is used internally during binary import when reading user extension nodes, group nodes or engines.

Reimplemented from SoNode.

void SoNodeEngine::inputChanged (SoField * which) [protected], [virtual] 🔄

Called when an input is changed. The default method does nothing, but subclasses may override this method to do the The Right Thing when a specific field is changed.

Reimplemented in SoVRMLTimeSensor.

const SoFieldData ** SoNodeEngine::getFieldDataPtr (void ) [static], [protected] 🗂️

Returns the SoFieldData class which holds information about inputs in this engine.

const SoEngineOutputData ** SoNodeEngine::getOutputDataPtr (void ) [static], [protected] 🗃️

Returns the SoEngineOutputData class which holds information about the outputs in this engine.

void SoNodeEngine::writeOutputTypes (SoOutput * out) [protected] 🧾

Writes the types of engine outputs for extension engines (i.e. engines not built in to Coin).

✍️ Author ✍️

Generated automatically by Doxygen for Coin from the source code.

and that's the whole page, bestie. the footer says Coin, Version 3.1.3, and this is the SoNodeEngine(3) page — date? it's giving timeless, fr fr. slay. 💖✨

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