---
name: "SoSimplifyAction"
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/SoSimplifyAction"
---

# SoSimplifyAction(3)

The SoSimplifyAction class is the base class for the simplify action classes.

## NAME

SoSimplifyAction - The **SoSimplifyAction** class is the base class for the simplify action classes.

## SYNOPSIS

\#include \<Inventor/actions/SoSimplifyAction.h\>

Inherits **SoAction**.

Inherited by **SoGlobalSimplifyAction**, **SoReorganizeAction**, and **SoShapeSimplifyAction**.

### Public Member Functions

virtual **SoType** **getTypeId** (void) const\
 **SoSimplifyAction** (void)\
 virtual **~SoSimplifyAction** (void)\
 virtual void **apply** (**SoNode** \*root)\
 virtual void **apply** (**SoPath** \*path)\
 virtual void **apply** (const **SoPathList** &pathlist, SbBool obeysrules=FALSE)\

Public Member Functions inherited from **SoAction** virtual **~SoAction** (void)\
 virtual SbBool **isOfType** (**SoType** type) const\
 void **apply** (**SoAction** \*beingApplied)\
 virtual void **invalidateState** (void)\
 **AppliedCode** **getWhatAppliedTo** (void) const\
 **SoNode** \* **getNodeAppliedTo** (void) const\
 **SoPath** \* **getPathAppliedTo** (void) const\
 const **SoPathList** \* **getPathListAppliedTo** (void) const\
 const **SoPathList** \* **getOriginalPathListAppliedTo** (void) const\
 SbBool **isLastPathListAppliedTo** (void) const\
 **PathCode** **getPathCode** (int &numindices, const int \*&indices)\
 void **traverse** (**SoNode** \*const node)\
 SbBool **hasTerminated** (void) const\
 const **SoPath** \* **getCurPath** (void)\
 **SoState** \* **getState** (void) const\
 **PathCode** **getCurPathCode** (void) const\
 virtual **SoNode** \* **getCurPathTail** (void)\
 void **usePathCode** (int &numindices, const int \*&indices)\
 void **pushCurPath** (const int childindex, **SoNode** \*node=NULL)\
 void **popCurPath** (const **PathCode** prevpathcode)\
 void **pushCurPath** (void)\
 void **popPushCurPath** (const int childindex, **SoNode** \*node=NULL)\
 void **popCurPath** (void)\
 void **switchToPathTraversal** (**SoPath** \*path)\
 void **switchToNodeTraversal** (**SoNode** \*node)\

### Static Public Member Functions

static **SoType** **getClassTypeId** (void)\
 static void **addMethod** (const **SoType** type, SoActionMethod method)\
 static void **enableElement** (const **SoType** type, const int stackindex)\
 static void **initClass** (void)\

Static Public Member Functions inherited from **SoAction** static void **initClass** (void)\
 static void **initClasses** (void)\
 static **SoType** **getClassTypeId** (void)\
 static void **nullAction** (**SoAction** \*action, **SoNode** \*node)\

### Protected Member Functions

virtual const **SoEnabledElementsList** & **getEnabledElements** (void) const\
 virtual void **beginTraversal** (**SoNode** \*node)\

Protected Member Functions inherited from **SoAction** **SoAction** (void)\
 virtual void **endTraversal** (**SoNode** \*node)\
 void **setTerminated** (const SbBool flag)\
 virtual SbBool **shouldCompactPathList** (void) const\

### Static Protected Member Functions

static **SoEnabledElementsList** \* **getClassEnabledElements** (void)\
 static **SoActionMethodList** \* **getClassActionMethods** (void)\

Static Protected Member Functions inherited from **SoAction** static **SoEnabledElementsList** \* **getClassEnabledElements** (void)\
 static **SoActionMethodList** \* **getClassActionMethods** (void)\

### Additional Inherited Members

Public Types inherited from **SoAction** enum **AppliedCode** { **NODE** = 0, **PATH** = 1, **PATH\_LIST** = 2 }\
 enum **PathCode** { **NO\_PATH** = 0, **IN\_PATH** = 1, **BELOW\_PATH** = 2, **OFF\_PATH** = 3 }\

Protected Attributes inherited from **SoAction** **SoState** \* **state**\
 **SoActionMethodList** \* **traversalMethods**\

## Detailed Description

The **SoSimplifyAction** class is the base class for the simplify action classes.

## Constructor & Destructor Documentation

### SoSimplifyAction::SoSimplifyAction (void )

A constructor.

### SoSimplifyAction::~SoSimplifyAction (void ) \[virtual\]

The destructor.

## Member Function Documentation

### SoType SoSimplifyAction::getTypeId (void ) const \[virtual\]

Returns the type identification of an object derived from a class inheriting **SoAction**. This is used for runtime type checking and "downward" casting.

Implements **SoAction**.

Reimplemented in **SoGlobalSimplifyAction**, **SoReorganizeAction**, and **SoShapeSimplifyAction**.

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

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

### void SoSimplifyAction::addMethod (const SoType type, SoActionMethod method) \[static\]

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

### void SoSimplifyAction::enableElement (const SoType type, const int stackindex) \[static\]

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

### const SoEnabledElementsList & SoSimplifyAction::getEnabledElements (void ) const \[protected\], \[virtual\]

Returns list of enabled elements.

Reimplemented from **SoAction**.

Reimplemented in **SoGlobalSimplifyAction**, **SoReorganizeAction**, and **SoShapeSimplifyAction**.

### SoEnabledElementsList \* SoSimplifyAction::getClassEnabledElements (void ) \[static\], \[protected\]

Returns list of enabled elements for this class. The enabledElements and methods variables are protected in the original OIV API. This is not such a good idea, since exposed static class member variables is a major grievance with regard to Win32 DLLs. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.\

### SoActionMethodList \* SoSimplifyAction::getClassActionMethods (void ) \[static\], \[protected\]

Returns list of action methods for this class. The enabledElements and methods variables are protected in the original OIV API. This is not such a good idea, since exposed static class member variables is a major grievance with regard to Win32 DLLs. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.\

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

Initializes the runtime type system for this class, and sets up the enabled elements and action method list.

### void SoSimplifyAction::apply (SoNode \* root) \[virtual\]

Applies the action to the scene graph rooted at *root*.

Note that you should *not* apply an action to a node with a zero reference count. The behavior in that case is undefined.

Reimplemented from **SoAction**.

Reimplemented in **SoReorganizeAction**.

### void SoSimplifyAction::apply (SoPath \* path) \[virtual\]

Applies the action to the parts of the graph defined by *path*.

Note that an **SoPath** will also contain all nodes that may influence e.g. geometry nodes in the path. So for instance applying an **SoGLRenderAction** on an **SoPath** will render that path as expected in the view, where geometry will get its materials, textures, and other appearance settings correctly.

If the *path* ends in an **SoGroup** node, the action will also traverse the tail node's children.

Reimplemented from **SoAction**.

Reimplemented in **SoReorganizeAction**.

### void SoSimplifyAction::apply (const SoPathList & pathlist, SbBool obeysrules = FALSE) \[virtual\]

Applies action to the graphs defined by *pathlist*. If *obeysrules* is set to TRUE, *pathlist* must obey the following four conditions (which is the case for path lists returned from search actions for non-group nodes and path lists returned from picking actions):

All paths must start at the same head node. All paths must be sorted in traversal order. The paths must be unique. No path can continue through the end point of another path.

**See also**

**SoAction::apply(SoPath \* path)**

Reimplemented from **SoAction**.

Reimplemented in **SoReorganizeAction**.

### void SoSimplifyAction::beginTraversal (SoNode \* node) \[protected\], \[virtual\]

This virtual method is called from **SoAction::apply()**, and is the entry point for the actual scene graph traversal.

It can be overridden to initialize the action at traversal start, for specific initializations in the action subclasses inheriting **SoAction**.

Default method just calls **traverse()**, which any overridden implementation of the method must do too (or call **SoAction::beginTraversal()**) to trigger the scene graph traversal.

Reimplemented from **SoAction**.

Reimplemented in **SoGlobalSimplifyAction**, **SoReorganizeAction**, and **SoShapeSimplifyAction**.

## Author

Generated automatically by Doxygen for Coin from the source code.