---
name: "SoWWWAnchor"
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/SoWWWAnchor"
---

# SoWWWAnchor(3)

The SoWWWAnchor class adds URL callbacks to the highlighted geometry.

## NAME

SoWWWAnchor - The **SoWWWAnchor** class adds URL callbacks to the highlighted geometry.

## SYNOPSIS

\#include \<Inventor/nodes/SoWWWAnchor.h\>

Inherits **SoLocateHighlight**.

### Public Types

enum **Mapping** { **NONE**, **POINT** }\

Public Types inherited from **SoLocateHighlight** enum **Modes** { **AUTO**, **ON**, **OFF** }\
 enum **Styles** { **EMISSIVE**, **EMISSIVE\_DIFFUSE** }\

Public Types inherited from **SoSeparator** 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 }\

### Public Member Functions

virtual **SoType** **getTypeId** (void) const\
 **SoWWWAnchor** (void)\
 void **setFullURLName** (const **SbString** &url)\
 const **SbString** & **getFullURLName** (void)\
 virtual void **handleEvent** (**SoHandleEventAction** \*action)\

Public Member Functions inherited from **SoLocateHighlight** **SoLocateHighlight** (void)\
 virtual void **GLRenderBelowPath** (**SoGLRenderAction** \*action)\
 virtual void **GLRenderInPath** (**SoGLRenderAction** \*action)\

Public Member Functions inherited from **SoSeparator** **SoSeparator** (void)\
 **SoSeparator** (const int nchildren)\
 virtual void **doAction** (**SoAction** \*action)\
 virtual void **GLRender** (**SoGLRenderAction** \*action)\
 virtual void **GLRenderOffPath** (**SoGLRenderAction** \*action)\
 virtual void **callback** (**SoCallbackAction** \*action)\
 virtual void **getBoundingBox** (**SoGetBoundingBoxAction** \*action)\
 virtual void **getMatrix** (**SoGetMatrixAction** \*action)\
 virtual void **rayPick** (**SoRayPickAction** \*action)\
 virtual void **search** (**SoSearchAction** \*action)\
 virtual void **getPrimitiveCount** (**SoGetPrimitiveCountAction** \*action)\
 virtual void **audioRender** (**SoAudioRenderAction** \*action)\
 virtual void **notify** (**SoNotList** \*nl)\
 virtual SbBool **affectsState** (void) const\

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 **pick** (**SoPickAction** \*action)\
 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 **grabEventsSetup** (void)\
 virtual void **grabEventsCleanup** (void)\
 virtual void **startNotify** (void)\
 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 void **setFetchURLCallBack** (SoWWWAnchorCB \*f, void \*userData)\
 static void **setHighlightURLCallBack** (SoWWWAnchorCB \*f, void \*userData)\

Static Public Member Functions inherited from **SoLocateHighlight** 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 void **turnOffCurrentHighlight** (**SoGLRenderAction** \*action)\

Static Public Member Functions inherited from **SoSeparator** 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 void **setNumRenderCaches** (const int howmany)\
 static int **getNumRenderCaches** (void)\

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

**SoSFString** **name**\
 **SoSFString** **description**\
 **SoSFEnum** **map**\

Public Attributes inherited from **SoLocateHighlight** **SoSFColor** **color**\
 **SoSFEnum** **style**\
 **SoSFEnum** **mode**\

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

### Protected Member Functions

virtual const **SoFieldData** \* **getFieldData** (void) const\
 virtual **~SoWWWAnchor** ()\
 virtual void **redrawHighlighted** (**SoAction** \*act, SbBool isNowHighlighting)\

Protected Member Functions inherited from **SoLocateHighlight** virtual **~SoLocateHighlight** ()\

Protected Member Functions inherited from **SoSeparator** virtual **~SoSeparator** ()\
 virtual SbBool **cullTest** (**SoState** \*state)\
 virtual SbBool **cullTest** (**SoGLRenderAction** \*action, int &cullresults)\
 virtual SbBool **readInstance** (**SoInput** \*in, unsigned short flags)\

Protected Member Functions inherited from **SoGroup** virtual **~SoGroup** ()\
 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 **SoLocateHighlight** static const **SoFieldData** \*\* **getFieldDataPtr** (void)\

Static Protected Member Functions inherited from **SoSeparator** 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

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 **SoWWWAnchor** class adds URL callbacks to the highlighted geometry.

In addition to highlighting geometry under the cursor, the application programmer can set callbacks. It is possible to set one callback for picking, the fetch callback, and one callback for highlighting.

```
#Inventor V2.1 ascii
WWWAnchor {
   name "https://github.com/coin3d/coin/egg.iv"
   description "Easter Egg"
   Separator {
      Transform { scaleFactor 0.8 1.2 0.8 }
      Sphere { }
   }
}
```

**FILE FORMAT/DEFAULTS:**

```
WWWAnchor {
    renderCaching AUTO
    boundingBoxCaching AUTO
    renderCulling AUTO
    pickCulling AUTO
    color 0.3 0.3 0.3
    style EMISSIVE
    mode AUTO
    name "<Undefined URL>"
    description ""
    map NONE
}
```

**Since**

SGI Inventor 2.1

## Member Enumeration Documentation

### enum SoWWWAnchor::Mapping

Enum that says how a picked node's position should be mapped to the URL.

**Enumerator**

- ***NONE***

  The position of the picked node is not mapped to the URL.

- ***POINT***

  The position of the picked node is mapped to the URL as object space coordinates, adding a parameter string to the end of the URL. To assure that the URL works with all browsers, the coordinates are divided by commas sent as the hex representation.

If a model by the name of sim.wrl resided at https://github.com/coin3d/ and the picked point had the coordinates \[1.5, 10, 6.77\], the resulting URL would be "https://github.com/coin3d/sim.wrl?1.5%2c10%2c6.77".

## Constructor & Destructor Documentation

### SoWWWAnchor::SoWWWAnchor (void )

Constructor.

### SoWWWAnchor::~SoWWWAnchor () \[protected\], \[virtual\]

Destructor.

## Member Function Documentation

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

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

### SoType SoWWWAnchor::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 **SoLocateHighlight**.

### const SoFieldData \*\* SoWWWAnchor::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 \* SoWWWAnchor::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 **SoLocateHighlight**.

### void SoWWWAnchor::setFullURLName (const SbString & url)

Sets the full URL to *url*. If this is set, this URL will be used in callbacks instead of the URL set in **SoWWWAnchor::name**.

**See also**

**SoWWWAnchor::getFullURLName()**

### const SbString & SoWWWAnchor::getFullURLName (void )

Returns the full URL if it is set by **SoWWWAnchor::setFullURLName()**. Otherwise the contents of **SoWWWAnchor::name** is returned.

**See also**

**SoWWWAnchor::setFullURLName()**

### void SoWWWAnchor::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 **SoLocateHighlight**.

### void SoWWWAnchor::setFetchURLCallBack (SoWWWAnchorCB \* f, void \* userData) \[static\]

Sets the callback function *f* that is called when a **SoWWWAnchor** node is clicked on. This callback can among other things be used to provide a browser with the URL of this node.

The callback will be called with the URL, *userData* and a pointer to this node as arguments.

### void SoWWWAnchor::setHighlightURLCallBack (SoWWWAnchorCB \* f, void \* userData) \[static\]

Sets the callback function *f* that is called when a **SoWWWAnchor** node is highlighted. This callback can among other things be used to provide the user with a visual clue on which URL the node points to, for example by showing the URL as a string.

The callback will be called with the URL, *userData* and a pointer to this node as arguments.

### void SoWWWAnchor::redrawHighlighted (SoAction \* act, SbBool isNowHighlighting) \[protected\], \[virtual\]

Calls the highlight callback set up with **SoWWWAnchor::setHighlightURLCallBack()**.

Reimplemented from **SoLocateHighlight**.

## Member Data Documentation

### SoSFString SoWWWAnchor::name

The name of the URL which the anchor points to.

### SoSFString SoWWWAnchor::description

The description of the URL.

### SoSFEnum SoWWWAnchor::map

Enum describing how a node's position should be mapped to the URL.

## Author

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