--- name: "SoMultipleCopy" section: "3" platform: "linux" package: "coin" version: "1:4.0.10-1" release: "Arch Linux 2026-11-01" platforms: ["linux"] url: "https://new.carta.tech/SoMultipleCopy" --- # SoMultipleCopy(3) The SoMultipleCopy class redraws its children multiple times at different transformations. ## NAME SoMultipleCopy - The **SoMultipleCopy** class redraws its children multiple times at different transformations. ## SYNOPSIS \#include \ Inherits **SoGroup**. ### Public Member Functions virtual **SoType** **getTypeId** (void) const\ **SoMultipleCopy** (void)\ virtual SbBool **affectsState** (void) const\ virtual void **doAction** (**SoAction** \*action)\ virtual void **callback** (**SoCallbackAction** \*action)\ virtual void **GLRender** (**SoGLRenderAction** \*action)\ virtual void **pick** (**SoPickAction** \*action)\ virtual void **getBoundingBox** (**SoGetBoundingBoxAction** \*action)\ virtual void **handleEvent** (**SoHandleEventAction** \*action)\ virtual void **getMatrix** (**SoGetMatrixAction** \*action)\ virtual void **search** (**SoSearchAction** \*action)\ virtual void **getPrimitiveCount** (**SoGetPrimitiveCountAction** \*action)\ virtual void **audioRender** (**SoAudioRenderAction** \*action)\ Public Member Functions inherited from **SoGroup** **SoGroup** (void)\ **SoGroup** (int nchildren)\ virtual void **addChild** (**SoNode** \*node)\ virtual void **insertChild** (**SoNode** \*child, int newchildindex)\ virtual **SoNode** \* **getChild** (int index) const\ virtual int **findChild** (const **SoNode** \*node) const\ virtual int **getNumChildren** (void) const\ virtual void **removeChild** (int childindex)\ virtual void **removeChild** (**SoNode** \*child)\ virtual void **removeAllChildren** (void)\ virtual void **replaceChild** (int index, **SoNode** \*newchild)\ virtual void **replaceChild** (**SoNode** \*oldchild, **SoNode** \*newchild)\ virtual void **write** (**SoWriteAction** \*action)\ virtual **SoChildList** \* **getChildren** (void) const\ virtual void **addWriteReference** (**SoOutput** \*out, SbBool isfromfield=FALSE)\ 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 void **GLRenderBelowPath** (**SoGLRenderAction** \*action)\ virtual void **GLRenderInPath** (**SoGLRenderAction** \*action)\ virtual void **GLRenderOffPath** (**SoGLRenderAction** \*action)\ virtual void **rayPick** (**SoRayPickAction** \*action)\ virtual void **grabEventsSetup** (void)\ virtual void **grabEventsCleanup** (void)\ virtual void **startNotify** (void)\ virtual void **notify** (**SoNotList** \*l)\ SbUniqueId **getNodeId** (void) const\ virtual void **writeInstance** (**SoOutput** \*out)\ virtual **SoNode** \* **addToCopyDict** (void) const\ 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)\ SbBool **getIsBuiltIn** (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)\ 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)\ 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 **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 **SoGroup** static **SoType** **getClassTypeId** (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 **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)\ 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 SbUniqueId **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)\ 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 **SoMFMatrix** **matrix**\ ### Protected Member Functions virtual const **SoFieldData** \* **getFieldData** (void) const\ virtual **~SoMultipleCopy** ()\ Protected Member Functions inherited from **SoGroup** virtual **~SoGroup** ()\ virtual SbBool **readInstance** (**SoInput** \*in, unsigned short flags)\ virtual SbBool **readChildren** (**SoInput** \*in)\ virtual void **copyContents** (const **SoFieldContainer** \*from, SbBool copyconnections)\ virtual **SoNotRec** **createNotRec** (void)\ void **setOperation** (const **SoNotRec::OperationType** opType=SoNotRec::UNSPECIFIED, const **SoNode** \*cc=NULL, const **SoNode** \*pc=NULL, const int ci=-1)\ 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** ()\ virtual void **destroy** (void)\ 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 Protected Member Functions inherited from **SoGroup** static const **SoFieldData** \*\* **getFieldDataPtr** (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, **COIN\_4\_0** = 0x20000 }\ Protected Types inherited from **SoBase** enum **BaseFlags** { **IS\_ENGINE** = 0x01, **IS\_GROUP** = 0x02 }\ Protected Attributes inherited from **SoGroup** **SoChildList** \* **children**\ Protected Attributes inherited from **SoNode** SbUniqueId **uniqueId**\ Protected Attributes inherited from **SoFieldContainer** SbBool **isBuiltIn**\ Static Protected Attributes inherited from **SoNode** static SbUniqueId **nextUniqueId** = 1\ static int **nextActionMethodIndex** = 0\ ## Detailed Description The **SoMultipleCopy** class redraws its children multiple times at different transformations. The **SoMultipleCopy** group node duplicates its child nodes / subgraphs without using additional memory resources. It can do general transformations (translations, rotation and scaling) for its children. Apart from transformations, the appearance of its children will be identical. **FILE FORMAT/DEFAULTS:** ``` MultipleCopy { matrix 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 } ``` **See also** **SoArray** ## Constructor & Destructor Documentation ### SoMultipleCopy::SoMultipleCopy (void ) Constructor. ### SoMultipleCopy::~SoMultipleCopy () \[protected\], \[virtual\] Destructor. ## Member Function Documentation ### SoType SoMultipleCopy::getClassTypeId (void ) \[static\] This static method returns the **SoType** object associated with objects of this class. ### SoType SoMultipleCopy::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. Reimplemented from **SoGroup**. ### const SoFieldData \*\* SoMultipleCopy::getFieldDataPtr (void ) \[static\], \[protected\] *This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\ Returns the **SoFieldData** class which holds information about fields in this node. ### const SoFieldData \* SoMultipleCopy::getFieldData (void ) const \[protected\], \[virtual\] Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL. Reimplemented from **SoGroup**. ### SbBool SoMultipleCopy::affectsState (void ) const \[virtual\] Returns TRUE if the node could have any effect on the state during traversal. If it returns FALSE, no data in the traversal state will change from the pre-traversal state to the post-traversal state. The **SoSeparator** node will for instance return FALSE, as it pushes and pops the state before and after traversal of its children. All **SoShape** nodes will also return FALSE, as just pushing out geometry data to the rendering engine won't affect the actual rendering state. The default method returns TRUE, on a "better safe than sorry" philosophy. Reimplemented from **SoNode**. ### void SoMultipleCopy::doAction (SoAction \* action) \[virtual\] This function performs the typical operation of a node for any action. Reimplemented from **SoGroup**. ### void SoMultipleCopy::callback (SoCallbackAction \* action) \[virtual\] Action method for **SoCallbackAction**. Simply updates the state according to how the node behaves for the render action, so the application programmer can use the **SoCallbackAction** for extracting information about the scene graph. Reimplemented from **SoGroup**. ### void SoMultipleCopy::GLRender (SoGLRenderAction \* action) \[virtual\] Action method for the **SoGLRenderAction**. This is called during rendering traversals. Nodes influencing the rendering state in any way or want to throw geometry primitives at OpenGL override this method. Reimplemented from **SoGroup**. ### void SoMultipleCopy::pick (SoPickAction \* action) \[virtual\] Action method for **SoPickAction**. Does common processing for **SoPickAction** *action* instances. Reimplemented from **SoGroup**. ### void SoMultipleCopy::getBoundingBox (SoGetBoundingBoxAction \* action) \[virtual\] Action method for the **SoGetBoundingBoxAction**. Calculates bounding box and center coordinates for node and modifies the values of the *action* to encompass the bounding box for this node and to shift the center point for the scene more towards the one for this node. Nodes influencing how geometry nodes calculate their bounding box also override this method to change the relevant state variables. Reimplemented from **SoGroup**. ### void SoMultipleCopy::handleEvent (SoHandleEventAction \* action) \[virtual\] Action method for **SoHandleEventAction**. Inspects the event data from *action*, and processes it if it is something which this node should react to. Nodes influencing relevant state variables for how event handling is done also override this method. Reimplemented from **SoGroup**. ### void SoMultipleCopy::getMatrix (SoGetMatrixAction \* action) \[virtual\] Action method for **SoGetMatrixAction**. Updates *action* by accumulating with the transformation matrix of this node (if any). Reimplemented from **SoGroup**. ### void SoMultipleCopy::search (SoSearchAction \* action) \[virtual\] Action method for **SoSearchAction**. Compares the search criteria from the *action* to see if this node is a match. Searching is done by matching up *all* criteria set up in the **SoSearchAction** -- if *any* of the requested criteria is a miss, the search is not deemed successful for the node. **See also** **SoSearchAction** Reimplemented from **SoGroup**. ### void SoMultipleCopy::getPrimitiveCount (SoGetPrimitiveCountAction \* action) \[virtual\] Action method for the **SoGetPrimitiveCountAction**. Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the *action*. Nodes influencing how geometry nodes calculate their primitive count also override this method to change the relevant state variables. Reimplemented from **SoGroup**. ### void SoMultipleCopy::audioRender (SoAudioRenderAction \* action) \[virtual\] Action method for **SoAudioRenderAction**. Does common processing for **SoAudioRenderAction** *action* instances. Reimplemented from **SoGroup**. ## Member Data Documentation ### SoMFMatrix SoMultipleCopy::matrix A set of geometry transformation matrices. The number of duplicated redraws of the child geometry will be the same as the number of matrices specified in this field. I.e., each duplication will be transformed according to a transformation matrix. The default value of the field is to contain just a single identity matrix. ## Author Generated automatically by Doxygen for Coin from the source code.