---
name: "SoFontStyle"
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/SoFontStyle"
---

# SoFontStyle(3)

The SoFontStyle class changes the appearance of fonts for text rendering nodes.

## NAME

SoFontStyle - The **SoFontStyle** class changes the appearance of fonts for text rendering nodes.

## SYNOPSIS

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

Inherits **SoFont**.

### Public Types

enum **Family** { **SERIF**, **SANS**, **TYPEWRITER** }\
 enum **Style** { **NONE**, **BOLD**, **ITALIC** }\

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\
 **SoFontStyle** (void)\
 **SbString** **getFontName** (void) const\
 virtual void **doAction** (**SoAction** \*action)\
 virtual void **getBoundingBox** (**SoGetBoundingBoxAction** \*action)\
 virtual void **GLRender** (**SoGLRenderAction** \*action)\
 virtual void **callback** (**SoCallbackAction** \*action)\
 virtual void **pick** (**SoPickAction** \*action)\
 virtual void **getPrimitiveCount** (**SoGetPrimitiveCountAction** \*action)\

Public Member Functions inherited from **SoFont** **SoFont** (void)\

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 **getMatrix** (**SoGetMatrixAction** \*action)\
 virtual void **handleEvent** (**SoHandleEventAction** \*action)\
 virtual void **rayPick** (**SoRayPickAction** \*action)\
 virtual void **search** (**SoSearchAction** \*action)\
 virtual void **write** (**SoWriteAction** \*action)\
 virtual void **audioRender** (**SoAudioRenderAction** \*action)\
 virtual void **grabEventsSetup** (void)\
 virtual void **grabEventsCleanup** (void)\
 virtual void **startNotify** (void)\
 virtual void **notify** (**SoNotList** \*l)\
 SbUniqueId **getNodeId** (void) const\
 virtual **SoChildList** \* **getChildren** (void) const\
 virtual void **writeInstance** (**SoOutput** \*out)\
 virtual **SoNode** \* **addToCopyDict** (void) const\
 virtual void **copyContents** (const **SoFieldContainer** \*from, SbBool copyconnections)\
 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)\
 virtual void **addWriteReference** (**SoOutput** \*out, SbBool isfromfield=FALSE)\
 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 **SoFont** 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

**SoSFEnum** **family**\
 **SoSFBitMask** **style**\

Public Attributes inherited from **SoFont** **SoSFName** **name**\
 **SoSFFloat** **size**\

### Protected Member Functions

virtual const **SoFieldData** \* **getFieldData** (void) const\
 virtual **~SoFontStyle** ()\

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

Protected Member Functions inherited from **SoNode** **SoNode** (void)\
 virtual **~SoNode** ()\
 virtual SbBool **readInstance** (**SoInput** \*in, unsigned short flags)\

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 Protected Member Functions inherited from **SoFont** 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 **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 **SoFontStyle** class changes the appearance of fonts for text rendering nodes.

Successive text rendering nodes will use fonts with the style settings of this node, if a font with the given settings can be found and loaded from the system.

If the specified font style cannot be found on the client system, a default fallback will be used. So the application programmer must consider **SoFontStyle** nodes as nodes giving *hints* about font settings, as you are *not* guaranteed to get exactly what you want.

Currently the SERIF family is mapped to "Times New Roman", SANS is mapped to "Arial" and TYPEWRITER is mapped to "Courier New".

Please note that this node is inheriting **SoFont. Previous font settings in a branch will therefore be overwritten with the default values of SoFont if an empty SoFontStyle node is inserted in the branch.**

*NB!* **This node is provided for reasons of compatibility with Open Inventor 2.1 but will in most cases result in the default font being rendered. It is highly recommended to use the SoFont node instead.**

**FILE FORMAT/DEFAULTS:**

```
FontStyle {
    name "defaultFont"
    size 10
    family SERIF
    style ()
}
```

**Since**

**SGI Inventor 2.1**

**See also**

**SoFont, SoText2, SoText3, SoAsciiText**

## Member Enumeration Documentation

### enum SoFontStyle::Family

**Enumeration of the font family to use.**

**Enumerator**

- ***SERIF***

  **Serif font family should be used.**

- ***SANS***

  **Sans serif font family should be used.**

- ***TYPEWRITER***

  **Type writer font family should be used.**

### enum SoFontStyle::Style

**Enumeration of font style characteristics.**

**Enumerator**

- ***NONE***

  **No modification to the style attributes of the font family.**

- ***BOLD***

  **The bold font of the font family should be used.**

- ***ITALIC***

  **The italic font of the font family should be used.**

## Constructor & Destructor Documentation

### SoFontStyle::SoFontStyle (void )

**Constructor.**

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

**Destructor.**

## Member Function Documentation

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

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

### SoType SoFontStyle::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 SoFont.**

### const SoFieldData \*\* SoFontStyle::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 \* SoFontStyle::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 SoFont.**

### SbString SoFontStyle::getFontName (void ) const

**Returns a system specific text string to use for font loading, based on the style settings of this node.**

### void SoFontStyle::doAction (SoAction \* action) \[virtual\]

**This function performs the typical operation of a node for any action.**

**Reimplemented from SoFont.**

### void SoFontStyle::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 SoFont.**

### void SoFontStyle::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 SoFont.**

### void SoFontStyle::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 SoFont.**

### void SoFontStyle::pick (SoPickAction \* action) \[virtual\]

**Action method for SoPickAction.**

**Does common processing for SoPickAction** *action* **instances.**

**Reimplemented from SoFont.**

### void SoFontStyle::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 SoFont.**

## Member Data Documentation

### SoSFEnum SoFontStyle::family

**Font family hint.**

### SoSFBitMask SoFontStyle::style

**Font style hint.**

## Author

**Generated automatically by Doxygen for Coin from the source code.**