---
name: "SoScale2UniformDragger"
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/SoScale2UniformDragger"
---

# SoScale2UniformDragger(3)

The SoScale2UniformDragger class provides a mechanism for the end-user to scale in two dimensions.

## NAME

SoScale2UniformDragger - The **SoScale2UniformDragger** class provides a mechanism for the end-user to scale in two dimensions.

## SYNOPSIS

\#include \<Inventor/draggers/SoScale2UniformDragger.h\>

Inherits **SoDragger**.

### Public Member Functions

virtual **SoType** **getTypeId** (void) const\
 virtual const **SoNodekitCatalog** \* **getNodekitCatalog** (void) const\
 **SoScale2UniformDragger** (void)\

Public Member Functions inherited from **SoDragger** virtual void **callback** (**SoCallbackAction** \*action)\
 virtual void **GLRender** (**SoGLRenderAction** \*action)\
 virtual void **getMatrix** (**SoGetMatrixAction** \*action)\
 virtual void **rayPick** (**SoRayPickAction** \*action)\
 virtual void **search** (**SoSearchAction** \*action)\
 virtual void **write** (**SoWriteAction** \*action)\
 virtual void **getPrimitiveCount** (**SoGetPrimitiveCountAction** \*action)\
 void **setProjectorEpsilon** (const float epsilon)\
 float **getProjectorEpsilon** (void) const\
 void **addStartCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **removeStartCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **addMotionCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **removeMotionCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **addFinishCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **removeFinishCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **addValueChangedCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **removeValueChangedCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **setMinGesture** (int pixels)\
 int **getMinGesture** (void) const\
 SbBool **enableValueChangedCallbacks** (SbBool newval)\
 const **SbMatrix** & **getMotionMatrix** (void)\
 void **addOtherEventCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **removeOtherEventCallback** (SoDraggerCB \*func, void \*data=NULL)\
 void **registerChildDragger** (**SoDragger** \*child)\
 void **unregisterChildDragger** (**SoDragger** \*child)\
 void **registerChildDraggerMovingIndependently** (**SoDragger** \*child)\
 void **unregisterChildDraggerMovingIndependently** (**SoDragger** \*child)\
 **SbMatrix** **getLocalToWorldMatrix** (void)\
 **SbMatrix** **getWorldToLocalMatrix** (void)\
 **SbVec3f** **getLocalStartingPoint** (void)\
 **SbVec3f** **getWorldStartingPoint** (void)\
 void **getPartToLocalMatrix** (const **SbName** &partname, **SbMatrix** &parttolocalmatrix, **SbMatrix** &localtopartmatrix)\
 void **transformMatrixLocalToWorld** (const **SbMatrix** &frommatrix, **SbMatrix** &tomatrix)\
 void **transformMatrixWorldToLocal** (const **SbMatrix** &frommatrix, **SbMatrix** &tomatrix)\
 void **transformMatrixToLocalSpace** (const **SbMatrix** &frommatrix, **SbMatrix** &tomatrix, const **SbName** &fromspacepartname)\
 virtual void **setMotionMatrix** (const **SbMatrix** &newmatrix)\
 void **valueChanged** (void)\
 const **SbMatrix** & **getStartMotionMatrix** (void)\
 virtual void **saveStartParameters** (void)\
 const **SoPath** \* **getPickPath** (void) const\
 const **SoEvent** \* **getEvent** (void) const\
 **SoPath** \* **createPathToThis** (void)\
 const **SoPath** \* **getSurrogatePartPickedOwner** (void) const\
 const **SbName** & **getSurrogatePartPickedName** (void) const\
 const **SoPath** \* **getSurrogatePartPickedPath** (void) const\
 void **setStartingPoint** (const **SoPickedPoint** \*newpoint)\
 void **setStartingPoint** (const **SbVec3f** &newpoint)\
 const **SbViewVolume** & **getViewVolume** (void)\
 void **setViewVolume** (const **SbViewVolume** &vol)\
 const **SbViewportRegion** & **getViewportRegion** (void)\
 void **setViewportRegion** (const **SbViewportRegion** &reg)\
 **SoHandleEventAction** \* **getHandleEventAction** (void) const\
 void **setHandleEventAction** (**SoHandleEventAction** \*newAction)\
 void **setTempPathToThis** (const **SoPath** \*somethingclose)\
 virtual void **grabEventsSetup** (void)\
 virtual void **grabEventsCleanup** (void)\
 void **workFieldsIntoTransform** (**SbMatrix** &mtx)\
 void **setFrontOnProjector** (**ProjectorFrontSetting** newval)\
 **ProjectorFrontSetting** **getFrontOnProjector** (void) const\

Public Member Functions inherited from **SoInteractionKit** **SoInteractionKit** (void)\
 virtual SbBool **setPartAsPath** (const **SbName** &partname, **SoPath** \*path)\
 virtual SbBool **setPartAsDefault** (const **SbName** &partname, **SoNode** \*node, SbBool onlyifdefault=TRUE)\
 virtual SbBool **setPartAsDefault** (const **SbName** &partname, const **SbName** &nodename, SbBool onlyifdefault=TRUE)\
 SbBool **isPathSurrogateInMySubgraph** (const **SoPath** \*path, **SoPath** \*&pathToOwner, **SbName** &surrogatename, **SoPath** \*&surrogatepath, SbBool fillargs=TRUE)\
 SbBool **isPathSurrogateInMySubgraph** (const **SoPath** \*path)\
 virtual SbBool **setPart** (const **SbName** &partname, **SoNode** \*from)\

Public Member Functions inherited from **SoBaseKit** **SoBaseKit** (void)\
 virtual **SoNode** \* **getPart** (const **SbName** &partname, SbBool makeifneeded)\
 **SbString** **getPartString** (const **SoBase** \*part)\
 virtual **SoNodeKitPath** \* **createPathToPart** (const **SbName** &partname, SbBool makeifneeded, const **SoPath** \*pathtoextend=NULL)\
 SbBool **set** (const char \*namevaluepairliststring)\
 SbBool **set** (const char \*partnamestring, const char \*parameterstring)\
 virtual void **doAction** (**SoAction** \*action)\
 virtual **SoChildList** \* **getChildren** (void) const\
 void **printDiagram** (void)\
 void **printSubDiagram** (const **SbName** &rootname, int level)\
 void **printTable** (void)\
 virtual void **addWriteReference** (**SoOutput** \*out, SbBool isfromfield=FALSE)\
 SbBool **forceChildDrivenWriteRefs** (**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 **GLRenderBelowPath** (**SoGLRenderAction** \*action)\
 virtual void **GLRenderInPath** (**SoGLRenderAction** \*action)\
 virtual void **GLRenderOffPath** (**SoGLRenderAction** \*action)\
 virtual void **pick** (**SoPickAction** \*action)\
 virtual void **audioRender** (**SoAudioRenderAction** \*action)\
 virtual void **startNotify** (void)\
 virtual void **notify** (**SoNotList** \*l)\
 SbUniqueId **getNodeId** (void) const\
 virtual void **writeInstance** (**SoOutput** \*out)\
 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 const **SoNodekitCatalog** \* **getClassNodekitCatalog** (void)\
 static void **initClass** (void)\

Static Public Member Functions inherited from **SoDragger** static **SoType** **getClassTypeId** (void)\
 static const **SoNodekitCatalog** \* **getClassNodekitCatalog** (void)\
 static void **setMinScale** (float newminscale)\
 static float **getMinScale** (void)\
 static void **workValuesIntoTransform** (**SbMatrix** &mtx, const **SbVec3f** \*translationptr, const **SbRotation** \*rotationptr, const **SbVec3f** \*scalefactorptr, const **SbRotation** \*scaleorientationptr, const **SbVec3f** \*centerptr)\
 static void **getTransformFast** (**SbMatrix** &mtx, **SbVec3f** &translation, **SbRotation** &rotation, **SbVec3f** &scalefactor, **SbRotation** &scaleorientation, const **SbVec3f** &center)\
 static void **getTransformFast** (**SbMatrix** &mtx, **SbVec3f** &translation, **SbRotation** &rotation, **SbVec3f** &scalefactor, **SbRotation** &scaleorientation)\
 static **SbMatrix** **appendTranslation** (const **SbMatrix** &mtx, const **SbVec3f** &translation, const **SbMatrix** \*conversion=NULL)\
 static **SbMatrix** **appendScale** (const **SbMatrix** &mtx, const **SbVec3f** &scale, const **SbVec3f** &scalecenter, const **SbMatrix** \*conversion=NULL)\
 static **SbMatrix** **appendRotation** (const **SbMatrix** &mtx, const **SbRotation** &rot, const **SbVec3f** &rotcenter, const **SbMatrix** \*conversion=NULL)\
 static void **initClass** (void)\
 static void **initClasses** (void)\

Static Public Member Functions inherited from **SoInteractionKit** static **SoType** **getClassTypeId** (void)\
 static const **SoNodekitCatalog** \* **getClassNodekitCatalog** (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 void **setSwitchValue** (**SoNode** \*node, const int newVal)\

Static Public Member Functions inherited from **SoBaseKit** static **SoType** **getClassTypeId** (void)\
 static void **initClass** (void)\
 static const **SoNodekitCatalog** \* **getClassNodekitCatalog** (void)\
 static SbBool **isSearchingChildren** (void)\
 static void **setSearchingChildren** (const SbBool newval)\

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

**SoSFVec3f** **scaleFactor**\

Public Attributes inherited from **SoDragger** **SoSFBool** **isActive**\

Public Attributes inherited from **SoInteractionKit** **SoSFEnum** **renderCaching**\
 **SoSFEnum** **boundingBoxCaching**\
 **SoSFEnum** **renderCulling**\
 **SoSFEnum** **pickCulling**\

### Protected Member Functions

virtual const **SoFieldData** \* **getFieldData** (void) const\
 virtual **~SoScale2UniformDragger** (void)\
 virtual SbBool **setUpConnections** (SbBool onoff, SbBool doitalways=FALSE)\
 void **dragStart** (void)\
 void **drag** (void)\
 void **dragFinish** (void)\

Protected Member Functions inherited from **SoDragger** **SoDragger** (void)\
 virtual **~SoDragger** (void)\
 **SbVec2f** **getNormalizedLocaterPosition** (void)\
 **SbVec2s** **getLocaterPosition** (void)\
 **SbVec2s** **getStartLocaterPosition** (void) const\
 void **setStartLocaterPosition** (**SbVec2s** p)\
 SbBool **isAdequateConstraintMotion** (void)\
 virtual SbBool **shouldGrabBasedOnSurrogate** (const **SoPath** \*pickpath, const **SoPath** \*surrogatepath)\
 void **setCameraInfo** (**SoAction** \*action)\
 virtual void **handleEvent** (**SoHandleEventAction** \*ha)\
 void **transferMotion** (**SoDragger** \*child)\
 void **setIgnoreInBbox** (SbBool newval)\
 SbBool **isIgnoreInBbox** (void)\
 virtual void **getBoundingBox** (**SoGetBoundingBoxAction** \*action)\
 void **setActiveChildDragger** (**SoDragger** \*newchilddragger)\
 **SoDragger** \* **getActiveChildDragger** (void) const\
 virtual void **setDefaultOnNonWritingFields** (void)\
 void **updateDraggerCache** (const **SoPath** \*path)\
 virtual const **SoPickedPoint** \* **getPickedPointForStart** (**SoHandleEventAction** \*action)\

Protected Member Functions inherited from **SoInteractionKit** virtual **~SoInteractionKit** ()\
 virtual void **copyContents** (const **SoFieldContainer** \*fromFC, SbBool copyConnections)\
 virtual SbBool **setPart** (const int partNum, **SoNode** \*node)\
 virtual SbBool **readInstance** (**SoInput** \*in, unsigned short flags)\
 virtual SbBool **setAnyPartAsDefault** (const **SbName** &partname, **SoNode** \*node, SbBool anypart=TRUE, SbBool onlyifdefault=TRUE)\
 virtual SbBool **setAnyPartAsDefault** (const **SbName** &partname, const **SbName** &nodename, SbBool anypart=TRUE, SbBool onlyifdefault=TRUE)\
 SbBool **setAnySurrogatePath** (const **SbName** &name, **SoPath** \*path, SbBool leafcheck=FALSE, SbBool publiccheck=FALSE)\
 void **connectSeparatorFields** (**SoSeparator** \*dest, SbBool onOff)\

Protected Member Functions inherited from **SoBaseKit** virtual **~SoBaseKit** ()\
 virtual **SoNode** \* **addToCopyDict** (void) const\
 **SoGroup** \* **getContainerNode** (const **SbName** &listname, SbBool makeifneeded=TRUE)\
 virtual **SoNode** \* **getAnyPart** (const **SbName** &partname, SbBool makeifneeded, SbBool leafcheck=FALSE, SbBool publiccheck=FALSE)\
 virtual **SoNodeKitPath** \* **createPathToAnyPart** (const **SbName** &partname, SbBool makeifneeded, SbBool leafcheck=FALSE, SbBool publiccheck=FALSE, const **SoPath** \*pathtoextend=NULL)\
 virtual SbBool **setAnyPart** (const **SbName** &partname, **SoNode** \*from, SbBool anypart=TRUE)\
 void **createNodekitPartsList** (void)\
 void **createFieldList** (void)\
 virtual void **createDefaultParts** (void)\
 const SoNodekitParts \* **getNodekitPartsList** (void) const\
 const **SbList**\< **SoSFNode** \* \> & **getCatalogInstances** (void) const\
 void **catalogError** (void)\
 void **countMyFields** (**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** ()\
 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\
 virtual **SoNotRec** **createNotRec** (void)\

### Static Protected Member Functions

static const **SoFieldData** \*\* **getFieldDataPtr** (void)\
 static const **SoNodekitCatalog** \*\* **getClassNodekitCatalogPtr** (void)\
 static void **startCB** (void \*f, **SoDragger** \*d)\
 static void **motionCB** (void \*f, **SoDragger** \*d)\
 static void **finishCB** (void \*f, **SoDragger** \*d)\
 static void **fieldSensorCB** (void \*f, **SoSensor** \*s)\
 static void **valueChangedCB** (void \*f, **SoDragger** \*d)\

Static Protected Member Functions inherited from **SoDragger** static const **SoFieldData** \*\* **getFieldDataPtr** (void)\
 static const **SoNodekitCatalog** \*\* **getClassNodekitCatalogPtr** (void)\
 static void **childTransferMotionAndValueChangedCB** (void \*, **SoDragger** \*)\
 static void **childValueChangedCB** (void \*, **SoDragger** \*)\
 static void **childStartCB** (void \*, **SoDragger** \*)\
 static void **childMotionCB** (void \*, **SoDragger** \*)\
 static void **childFinishCB** (void \*, **SoDragger** \*)\
 static void **childOtherEventCB** (void \*, **SoDragger** \*)\

Static Protected Member Functions inherited from **SoInteractionKit** static const **SoFieldData** \*\* **getFieldDataPtr** (void)\
 static const **SoNodekitCatalog** \*\* **getClassNodekitCatalogPtr** (void)\
 static void **readDefaultParts** (const char \*fileName, const char defaultBuffer\[\], int defBufSize)\
 static void **fieldSensorCB** (void \*, **SoSensor** \*)\

Static Protected Member Functions inherited from **SoBaseKit** static const **SoFieldData** \*\* **getFieldDataPtr** (void)\
 static const **SoNodekitCatalog** \*\* **getClassNodekitCatalogPtr** (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)\

### Protected Attributes

**SoSFNode** **feedback**\
 **SoSFNode** **feedbackActive**\
 **SoSFNode** **feedbackSwitch**\
 **SoSFNode** **scaler**\
 **SoSFNode** **scalerActive**\
 **SoSFNode** **scalerSwitch**\
 **SoFieldSensor** \* **fieldSensor**\
 **SbLineProjector** \* **lineProj**\

Protected Attributes inherited from **SoDragger** **SoSFNode** **motionMatrix**\

Protected Attributes inherited from **SoInteractionKit** **SoSFNode** **geomSeparator**\
 **SoSFNode** **topSeparator**\
 **SoFieldSensor** \* **fieldSensor**\
 **SoSeparator** \* **oldTopSep**\

Protected Attributes inherited from **SoBaseKit** **SoSFNode** **callbackList**\
 **SoChildList** \* **children**\
 SbBool **connectionsSetUp**\

Protected Attributes inherited from **SoNode** SbUniqueId **uniqueId**\

Protected Attributes inherited from **SoFieldContainer** SbBool **isBuiltIn**\

### Additional Inherited Members

Public Types inherited from **SoDragger** enum **ProjectorFrontSetting** { **FRONT**, **BACK**, **USE\_PICK** }\

Public Types inherited from **SoInteractionKit** enum **CacheEnabled** { **OFF**, **ON**, **AUTO** }\

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 }\

Static Protected Attributes inherited from **SoNode** static SbUniqueId **nextUniqueId** = 1\
 static int **nextActionMethodIndex** = 0\

## Detailed Description

The **SoScale2UniformDragger** class provides a mechanism for the end-user to scale in two dimensions.

Here's how the dragger looks with its default geometry in the inactive state:

Use this dragger to allow the end-user of your application to scale along the X-axis and the Y-axis. (Use a transformation node in front of the dragger to position it and re-orient it to scale in any plane.)

Scaling with this dragger can only be done in a uniform manner, i.e. the X component of the **SoScale2UniformDragger::scaleFactor** will always equal the Y component.

For non-uniform scaling operations in 2 dimensions, use the **SoScale2Dragger**.

**See also**

**SoScaleUniformDragger**

## Constructor & Destructor Documentation

### SoScale2UniformDragger::SoScale2UniformDragger (void )

Default constructor, sets up the dragger nodekit catalog with the interaction and feedback geometry.

Nodekit structure (new entries versus parent class marked with arrow prefix):

```
CLASS SoScale2UniformDragger
-->"this"
      "callbackList"
      "topSeparator"
         "motionMatrix"
         "geomSeparator"
-->         "scalerSwitch"
-->            "scaler"
-->            "scalerActive"
-->         "feedbackSwitch"
-->            "feedback"
-->            "feedbackActive"
```

(See **SoBaseKit::printDiagram()** for information about the output formatting.)

Detailed information on catalog parts:

```
CLASS SoScale2UniformDragger
PVT   "this",  SoScale2UniformDragger  ---
      "callbackList",  SoNodeKitListPart [ SoCallback, SoEventCallback ]
PVT   "topSeparator",  SoSeparator  ---
PVT   "motionMatrix",  SoMatrixTransform  ---
PVT   "geomSeparator",  SoSeparator  ---
PVT   "scalerSwitch",  SoSwitch  ---
      "scaler",  SoSeparator  ---
      "scalerActive",  SoSeparator  ---
PVT   "feedbackSwitch",  SoSwitch  ---
      "feedback",  SoSeparator  ---
      "feedbackActive",  SoSeparator  ---
```

(See **SoBaseKit::printTable()** for information about the output formatting.)

### SoScale2UniformDragger::~SoScale2UniformDragger (void ) \[protected\], \[virtual\]

Protected destructor.

(Dragger classes are derived from **SoBase**, so they are reference counted and automatically destroyed when their reference count goes to 0.)

## Member Function Documentation

### SoType SoScale2UniformDragger::getClassTypeId (void ) \[static\]

This static method returns the **SoType** object associated with objects of this class.

### SoType SoScale2UniformDragger::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 **SoDragger**.

### const SoFieldData \*\* SoScale2UniformDragger::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 \* SoScale2UniformDragger::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 **SoDragger**.

### const SoNodekitCatalog \* SoScale2UniformDragger::getClassNodekitCatalog (void ) \[static\]

Returns the nodekit catalog which defines the layout of this class' kit.

### const SoNodekitCatalog \* SoScale2UniformDragger::getNodekitCatalog (void ) const \[virtual\]

Returns the nodekit catalog which defines the layout of this class' kit.

Reimplemented from **SoDragger**.

### const SoNodekitCatalog \*\* SoScale2UniformDragger::getClassNodekitCatalogPtr (void ) \[static\], \[protected\]

Returns the pointer to the pointer of the nodekit catalog for this class.

### void SoScale2UniformDragger::initClass (void ) \[static\]

Initializes type system for this dragger class.

Application programmers should usually not have to invoke this method, see documentation of **SoInteraction::init()**.

### SbBool SoScale2UniformDragger::setUpConnections (SbBool onoff, SbBool doitalways = FALSE) \[protected\], \[virtual\]

Sets up all internal connections for instances of this class.

(This method will usually not be of interest to the application programmer, unless you want to extend the library with new custom nodekits or dragger classes. If so, see the **SoBaseKit** class documentation.)

Reimplemented from **SoInteractionKit**.

### void SoScale2UniformDragger::startCB (void \* f, SoDragger \* d) \[static\], \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

### void SoScale2UniformDragger::motionCB (void \* f, SoDragger \* d) \[static\], \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

### void SoScale2UniformDragger::finishCB (void \* f, SoDragger \* d) \[static\], \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

### void SoScale2UniformDragger::fieldSensorCB (void \* d, SoSensor \* s) \[static\], \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

### void SoScale2UniformDragger::valueChangedCB (void \* f, SoDragger \* d) \[static\], \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

### void SoScale2UniformDragger::dragStart (void ) \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

Called when dragger is selected (picked) by the user.

### void SoScale2UniformDragger::drag (void ) \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

Called when user drags the mouse after picking the dragger.

### void SoScale2UniformDragger::dragFinish (void ) \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

Called when mouse button is released after picking and interacting with the dragger.

## Member Data Documentation

### SoSFVec3f SoScale2UniformDragger::scaleFactor

Continuously updated to contain the current vector of scaling along the X, Y and Z axes.

For the **SoScale2UniformDragger**, only the X and Y components are used, the Z component will always be equal to 1 (i.e. no scaling).

### SoFieldSensor\* SoScale2UniformDragger::fieldSensor \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

### SbLineProjector\* SoScale2UniformDragger::lineProj \[protected\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

## Author

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