SoComposeMatrix(3)

📦 version 2.5.0, in fedora 43, fedora 44

💖 SoComposeMatrix 💖

okay bestie, welcome to the SoComposeMatrix(3) page from the Library Functions Manual — section 3, the library-functions girlies, iykyk. it's a Coin class, it composes matrices, and we're gonna get through it together. no cap. 🎀

✨ NAME ✨

SoComposeMatrix — the SoComposeMatrix class is used to compose a matrix from miscellaneous transformations.

🌸 SYNOPSIS 🌸

#include <Inventor/engines/SoCompose.h>

Inherits SoEngine.

🦋 Public Member Functions

virtual SoType getTypeId (void) const
virtual const SoFieldData * getFieldData (void) const
virtual const SoEngineOutputData * getOutputData (void) const

💜 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
virtual void writeInstance (SoOutput *out)

💜 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=0)
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 *in)
void get (SbString &fielddata, SoOutput *out)
virtual SbBool validateNewFieldValue (SoField *field, void *newval)
virtual void addWriteReference (SoOutput *out, SbBool isfromfield=0)
SbBool getIsBuiltIn (void) const
virtual void copyContents (const SoFieldContainer *from, SbBool
    copyconnections)
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
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 ()

💜 Static Public Member Functions inherited from SoEngine

static void initClass (void)
static void initClasses (void)
static SoType getClassTypeId (void)
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)
static SoType getClassTypeId (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 *in, SoBase *&base, SoType expectedtype)
static void setInstancePrefix (const SbString &c)
static void setTraceRefs (SbBool trace)
static SbBool getTraceRefs (void)
static SbBool connectRoute (SoInput *in, const SbName &fromnodename,
    const SbName &fromfieldname, const SbName &tonodename, const SbName
    &tofieldname)
static SbBool readRoute (SoInput *in)

🦋 Public Attributes

SoMFVec3f translation
SoMFRotation rotation
SoMFVec3f scaleFactor
SoMFRotation scaleOrientation
SoMFVec3f center
SoEngineOutput matrix

🦋 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 Member Functions inherited from SoEngine

SoEngine (void)
virtual ~SoEngine ()
virtual SbBool readInstance (SoInput *in, unsigned short flags)
virtual void inputChanged (SoField *which)
void writeOutputTypes (SoOutput *out)

💜 Protected Member Functions inherited from SoFieldContainer

SoFieldContainer (void)
~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

💜 Protected Attributes inherited from SoFieldContainer

SbBool isBuiltIn

👑 Detailed Description 👑

The SoComposeMatrix class is used to compose a matrix from miscellaneous transformations.

like. that's the whole vibe. it takes a bunch of transformations and, bestie, it composes them into a matrix. iconic behavior honestly. ✨

🧚 Member Function Documentation 🧚

⭐ `SoType SoComposeMatrix::getTypeId (void ) const [virtual]`

returns the type identification of an object derived from a class inheriting SoBase. this is what you use for run-time type checking and "downward" casting. slay.

usage example:

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

okay so for application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or whatever else — this method needs to be overridden in all subclasses. periodt, no exceptions, it's giving mandatory. 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 info on writing Coin extensions, check the class documentation of the toplevel superclasses for the various class groups. 💅

implements SoBase.

⭐ `const SoFieldData * SoComposeMatrix::getFieldData (void ) const [virtual]`

returns a pointer to the class-wide field data storage object for this instance. if no fields are present, it returns NULL. 🫶

reimplemented from SoFieldContainer.

references center, matrix, rotation, scaleFactor, scaleOrientation, and translation.

⭐ `const SoEngineOutputData * SoComposeMatrix::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. so like, not your business bestie, but we still list it. 💀

implements SoEngine.