---
name: "ScXMLEvaluator"
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/ScXMLEvaluator"
---

# ScXMLEvaluator(3)

defines an interface for profile-dependent evaluators.

## NAME

ScXMLEvaluator - defines an interface for profile-dependent evaluators.

## SYNOPSIS

\#include \<Inventor/scxml/ScXMLEvaluator.h\>

Inherits **ScXMLObject**.

Inherited by **ScXMLCoinEvaluator**, **ScXMLECMAScriptEvaluator**, **ScXMLMinimumEvaluator**, and **ScXMLXPathEvaluator**.

### Public Member Functions

virtual **SoType** **getTypeId** (void) const =0\
 Returns the type identification of an object derived from a class inheriting **SoBase**. This is used for runtime type checking and *downward"*casting. virtual void **setStateMachine** (**ScXMLStateMachine** \*sm)\
 **ScXMLStateMachine** \* **getStateMachine** (void) const\
 virtual **ScXMLDataObj** \* **evaluate** (const char \*expression) const =0\
 virtual SbBool **setAtLocation** (const char \*location, **ScXMLDataObj** \*obj)=0\
 virtual **ScXMLDataObj** \* **locate** (const char \*location) const =0\
 virtual void **clearTemporaryVariables** (void)\

Public Member Functions inherited from **ScXMLObject** SbBool **isOfType** (**SoType** type) const\
 Returns TRUE if the type of this object is either of the same type or inherited from *type*.

### Static Public Member Functions

static **SoType** **getClassTypeId** (void)\
 static void **initClass** (void)\
 static void **cleanClass** (void)\

Static Public Member Functions inherited from **ScXMLObject** static **SoType** **getClassTypeId** (void)\
 This static method returns the **SoType** object associated with objects of this class.     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 **cleanClass** (void)\
 Does the opposite of initClass, deallocates any class specific resources and resets the class to an uninitialized state with respect to the Coin type system.

### Additional Inherited Members

Static Protected Member Functions inherited from **ScXMLObject** static void **registerClassType** (const char \*xmlns, const char \*classname, **SoType** type)\
 static void **registerInvokeClassType** (const char \*xmlns, const char \*targettype, const char \*source, **SoType** type)\

## Detailed Description

defines an interface for profile-dependent evaluators.

**Since**

Coin 3.1

## Member Function Documentation

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

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

**See also**

**SoBase::getTypeId() const**

Implements **ScXMLObject**.

Implemented in **ScXMLCoinEvaluator**, **ScXMLECMAScriptEvaluator**, **ScXMLMinimumEvaluator**, and **ScXMLXPathEvaluator**.

### void ScXMLEvaluator::setStateMachine (ScXMLStateMachine \* sm) \[virtual\]

Override to perform actions when installed on a state machine.

Reimplemented in **ScXMLCoinEvaluator**, and **ScXMLMinimumEvaluator**.

### virtual ScXMLDataObj \* ScXMLEvaluator::evaluate (const char \* expression) const \[pure virtual\]

Implemented in **ScXMLMinimumEvaluator**.

### virtual SbBool ScXMLEvaluator::setAtLocation (const char \* location, ScXMLDataObj \* obj) \[pure virtual\]

Implemented in **ScXMLMinimumEvaluator**.

### virtual ScXMLDataObj \* ScXMLEvaluator::locate (const char \* location) const \[pure virtual\]

Implemented in **ScXMLMinimumEvaluator**.

### void ScXMLEvaluator::clearTemporaryVariables (void ) \[virtual\]

Does nothing - overridden in derived classes.

The intention of this function is to clear out temporary variables that have the scope of only one event being processed by the scxml state machine.

Reimplemented in **ScXMLCoinEvaluator**, and **ScXMLMinimumEvaluator**.

## Author

Generated automatically by Doxygen for Coin from the source code.