SoDirectionalLightDragger(3)

📦
version 4.0.10 · 4 versions
, in fedora 43, fedora 44

💖 SoDirectionalLightDragger 💖

okay so bestie, welcome to the Coin manual, section 3, and this page is literally about SoDirectionalLightDragger. Yes the name is a mouthful, no we are not renaming it, it's iconic and it stays. 🎀

✨ NAME ✨

SoDirectionalLightDragger — the class that hands you interactive geometry so you can manipulate a directional light source with your own two hands. it's giving "touch the light, change the light" energy. 👑

✨ SYNOPSIS ✨

#include <Inventor/draggers/SoDirectionalLightDragger.h>

Inherits SoDragger. (yes, the whole dragger family tree is showing up today, get comfy 🌳)

🌸 Public Member Functions 🌸

  • virtual SoType getTypeId (void) const
  • virtual const SoNodekitCatalog * getNodekitCatalog (void) const
  • SoDirectionalLightDragger (void)

🦋 Public Member Functions inherited from SoDragger 🦋

not me listing the entire inheritance tree. but we don't skip, we don't summarise, we list all of them fr fr 💅
  • 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 ✨

okay bestie, these are the static public member functions that SoDirectionalLightDragger inherits from SoNode. no cap, here's the whole squad:

  • 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. periodt.
  • 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. iconic.
  • static SoType getClassTypeId (void) — this static method returns the SoType object associated with objects of this class. slay.
  • 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. bestie, you know the drill.
  • static SoType getClassTypeId (void) — this static method returns the SoType object associated with objects of this class. fr fr.
  • 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 ✨

  • SoSFRotation rotation 💅
  • SoSFVec3f translation 💖

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 ~SoDirectionalLightDragger (void) 💖
  • virtual SbBool setUpConnections (SbBool onoff, SbBool doitalways=FALSE) ✨
  • virtual void setDefaultOnNonWritingFields (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 ✨
  • 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 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 material 🙈
  • SoSFNode rotator 🍓
  • SoSFNode translator 🧚
  • SoSFNode translatorRotInv 💜
  • SoSFNode translatorSep 💅
  • SoFieldSensor * rotFieldSensor 💖
  • SoFieldSensor * translFieldSensor ✨

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 💡

okay so bestie, let me introduce you to the SoDirectionalLightDragger class 💖 — it hands you interactive geometry for manipulating a directional light source. yes, the actual light in your scene. you drag it, it moves. iconic behavior fr fr.

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

🎀 (picture it: the default geometry, just vibing, inactive, not being touched by anyone — a whole mood)

This dragger is lowkey perfect for setting up the fields of a SoDirectionalLight node, because it gives the end-user actual geometry to interact with a directional vector. like, a thing you can see and grab. slay.

The image below is an action shot example, with the directional light being red and the camera headlight turned right down.

🌈 (yes bestie, red light, headlight dimmed to basically nothing — that's the shot)

For convenience, this dragger also by default contains interaction geometry for placing the dragger itself. (SoDirectionalLight nodes don't have a position field, so this was strictly not needed.) — yeah they did it anyway, and honestly? we're not mad about it. 💅

The Coin library also includes a manipulator class, SoDirectionalLightManip, which wraps the functionality provided by this class inside the necessary mechanisms for connecting it to SoDirectionalLight node instances in a scene graph.

👀 See also

  • SoDirectionalLightManip

🛠️ Constructor & Destructor Documentation 🛠️

SoDirectionalLightDragger::SoDirectionalLightDragger (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 SoDirectionalLightDragger
-->"this"
      "callbackList"
      "topSeparator"
         "motionMatrix"
-->      "material"
-->      "translatorSep"
-->         "translatorRotInv"
-->         "translator"
-->      "rotator"
         "geomSeparator"

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

Detailed information on catalog parts:

CLASS SoDirectionalLightDragger
PVT   "this",  SoDirectionalLightDragger  ---
      "callbackList",  SoNodeKitListPart [ SoCallback, SoEventCallback ]
PVT   "topSeparator",  SoSeparator  ---
PVT   "motionMatrix",  SoMatrixTransform  ---
      "material",  SoMaterial  ---
PVT   "translatorSep",  SoSeparator  ---
      "translatorRotInv",  SoRotation  ---
      "translator",  SoDragPointDragger  ---
      "rotator",  SoRotateSphericalDragger  ---
PVT   "geomSeparator",  SoSeparator  ---

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

SoDirectionalLightDragger::~SoDirectionalLightDragger (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.) — so like, when nobody's holding onto it anymore, it dips. bye bestie, you were real. 😭

✨ Member Function Documentation ✨

SoType SoDirectionalLightDragger::getClassTypeId (void ) [static]

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

SoType SoDirectionalLightDragger::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 ** SoDirectionalLightDragger::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 * SoDirectionalLightDragger::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 * SoDirectionalLightDragger::getClassNodekitCatalog (void ) [static]

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

const SoNodekitCatalog * SoDirectionalLightDragger::getNodekitCatalog (void ) const [virtual]

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

Reimplemented from SoDragger.

const SoNodekitCatalog ** SoDirectionalLightDragger::getClassNodekitCatalogPtr (void ) [static], [protected]

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

void SoDirectionalLightDragger::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 SoDirectionalLightDragger::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 SoDirectionalLightDragger::setDefaultOnNonWritingFields (void ) [protected], [virtual]

(Be aware that this method is unlikely to be of interest to the application programmer who does not want to extend the library with new custom nodekits or draggers. If you indeed are writing extensions, see the information in the SoBaseKit class documentation.)

This is a virtual method, and the code in it should call SoField::setDefault() with argument TRUE on part fields that should not be written upon scene graph export operations.

This is typically done when:

  1. field value is NULL and part is NULL by default
  2. it is a leaf SoGroup or SoSeparator node with no children
  3. it is a leaf listpart with no children and an SoGroup or SoSeparator container
  4. it is a non-leaf part and it is of SoGroup type and all fields are at their default values

Subclasses should usually override this to do additional settings for new member fields. From the subclass, do remember to call "upwards" to your superclass' setDefaultOnNonWritingFields() method.

Reimplemented from SoDragger.

void SoDirectionalLightDragger::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 SoDirectionalLightDragger::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.

💾 Member Data Documentation 💾

SoSFRotation SoDirectionalLightDragger::rotation

This field is continuously updated to contain the rotation of the current direction vector. The application programmer will typically connect this to the rotation field of a SoDirectionalLight node (unless using the SoDirectionalLightManip class, where this is taken care of automatically).

It may also of course be connected to any other rotation field controlling the direction of scene graph geometry — it does not have to be part of a SoDirectionalLight node specifically. freedom 💅

SoSFVec3f SoDirectionalLightDragger::translation

Continuously updated to contain the current translation from the dragger's local origo position.

This field is not used by the SoDirectionalLightManip, but may be of interest for the application programmer wanting to use the SoDirectionalLightDragger outside the context of controlling a directional light node.

SoFieldSensor* SoDirectionalLightDragger::rotFieldSensor [protected]

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

SoFieldSensor* SoDirectionalLightDragger::translFieldSensor [protected]

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

👑 Author 👑

Generated automatically by Doxygen for Coin from the source code. (yes bestie, the robot wrote this one, we're just here to make it cute 💖)

and that's a wrap on part 3, bestie!! 🎀 this page is from Coin version 4.0.10, dated Thu Jun 25 2026, and it was the SoDirectionalLightDragger(3) page itself. go forth and drag your lights around, you absolute icon 💅✨🦋

📦 where this page comes from