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SoFloatElement

NAME

SoFloatElement - SoFloatElement is an abstract base class for elements that consists of a single float value.

This is the superclass of elements where the new element data replaces the old data, and where the data the element stores is a simple single precision floating point value.

SYNOPSIS

#include <Inventor/elements/SoFloatElement.h>

Inherits SoElement.

Inherited by SoComplexityElement, SoCreaseAngleElement, SoDecimationPercentageElement, SoFocalDistanceElement, SoFontSizeElement, SoLineWidthElement, SoListenerGainElement, SoPointSizeElement, and SoTextureQualityElement.

Public Member Functions

virtual void init (SoState *state)

virtual SbBool matches (const SoElement *element) const

virtual SoElement * copyMatchInfo (void) const

virtual void print (FILE *file) const

virtual void setElt (float value)

Static Public Member Functions

static SoType getClassTypeId (void)

static int getClassStackIndex (void)

static void initClass (void)

static void set (const int stackIndex, SoState *const state, SoNode *const node, const float value)

static void set (const int stackIndex, SoState *const state, const float value)

static float get (const int stackIndex, SoState *const state)

Protected Member Functions

virtual ~SoFloatElement ()

Protected Attributes

float data

Detailed Description

SoFloatElement is an abstract base class for elements that consists of a single float value.

This is the superclass of elements where the new element data replaces the old data, and where the data the element stores is a simple single precision floating point value.

This element is like a convenient light-weight version of the SoReplacedElement. It differs from the SoReplacedElement in that the set() and get() methods are already implemented, since it is known that subclasses will still contain just a single float value.

See also:

SoReplacedElement, SoInt32Element, SoAccumulatedElement

Constructor & Destructor Documentation

SoFloatElement::~SoFloatElement (void) [protected, virtual]

Destructor.

Member Function Documentation

SoType SoFloatElement::getClassTypeId (void) [static]

This static method returns the class type.

Reimplemented from SoElement.

Reimplemented in SoComplexityElement, SoCreaseAngleElement, SoDecimationPercentageElement, SoFocalDistanceElement, SoFontSizeElement, SoGLLineWidthElement, SoGLPointSizeElement, SoLineWidthElement, SoListenerGainElement, SoPointSizeElement, and SoTextureQualityElement.

int SoFloatElement::getClassStackIndex (void) [static]

This static method returns the state stack index for the class.

Reimplemented from SoElement.

Reimplemented in SoComplexityElement, SoCreaseAngleElement, SoDecimationPercentageElement, SoFocalDistanceElement, SoFontSizeElement, SoGLLineWidthElement, SoGLPointSizeElement, SoLineWidthElement, SoListenerGainElement, SoPointSizeElement, and SoTextureQualityElement.

void SoFloatElement::initClass (void) [static]

Initialize relevant common data for all instances, like the type system.

Reimplemented from SoElement.

Reimplemented in SoComplexityElement, SoCreaseAngleElement, SoDecimationPercentageElement, SoFocalDistanceElement, SoFontSizeElement, SoGLLineWidthElement, SoGLPointSizeElement, SoLineWidthElement, SoListenerGainElement, SoPointSizeElement, and SoTextureQualityElement.

SoElement * SoFloatElement::copyMatchInfo (void) const [virtual]

This function creates a copy of the element that contains enough information to enable the matches() function to work.

Used to help with scenegraph traversal caching operations.

Implements SoElement.

void SoFloatElement::print (FILE * file) const [virtual]

This function is for printing element information, and is used mostly for debugging purposes.

Reimplemented from SoElement.

void SoFloatElement::set (const int stackIndex, SoState *const state, const float value) [static]

Static method for setting the value of an element in the given state at the given stackIndex.

float SoFloatElement::get (const int index, SoState *const state) [static]

Static method to fetch the value of the element of this type from the given state at the given stack index.

void SoFloatElement::setElt (float value) [virtual]

Set element value.

Reimplemented in SoGLLineWidthElement, and SoGLPointSizeElement.

Member Data Documentation

float SoFloatElement::data [protected]

The element's value.

Author

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