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SoGLUpdateAreaElement

NAME

SoGLUpdateAreaElement -

The SoGLUpdateAreaElement class is yet to be documented.

FIXME: write doc.

SYNOPSIS

#include <Inventor/elements/SoGLUpdateAreaElement.h>

Inherits SoElement.

Public Member Functions

virtual void init (SoState *state)

virtual void push (SoState *state)

virtual void pop (SoState *state, const SoElement *prevTopElement)

virtual SbBool matches (const SoElement *element) const

virtual SoElement * copyMatchInfo () const

Static Public Member Functions

static void initClass (void)

static void set (SoState *const state, const SbVec2f &origin, const SbVec2f &size)

static SbBool get (SoState *const state, SbVec2f &origin, SbVec2f &size)

static SbVec2f getDefaultOrigin ()

static SbVec2f getDefaultSize ()

Protected Member Functions

virtual ~SoGLUpdateAreaElement ()

Protected Attributes

SbVec2f origin

SbVec2f size

Detailed Description

The SoGLUpdateAreaElement class is yet to be documented.

FIXME: write doc.

Constructor & Destructor Documentation

SoGLUpdateAreaElement::~SoGLUpdateAreaElement () [protected, virtual]The destructor.

Member Function Documentation

void SoGLUpdateAreaElement::initClass (void) [static]This static method initializes static data for the SoGLUpdateAreaElement class.

Reimplemented from SoElement.

SoElement * SoGLUpdateAreaElement::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 SoGLUpdateAreaElement::set (SoState *const state, const SbVec2f & origin, const SbVec2f & size) [static]Sets the update area. This can, for instance, be used when rendering in the front buffer, to only render parts of the scene during a window expose event. origin and size is in normalized window coordinates.

SbBool SoGLUpdateAreaElement::get (SoState *const state, SbVec2f & origin, SbVec2f & size) [static]Returns the current update area.

See also:

set()

SbVec2f SoGLUpdateAreaElement::getDefaultOrigin (void) [static]Returns the default update area origin, (0,0).

SbVec2f SoGLUpdateAreaElement::getDefaultSize (void) [static]Returns the default update area size, (1,1).

Member Data Documentation

SoGLUpdateAreaElement::origin [protected]FIXME: write doc

SoGLUpdateAreaElement::size [protected]FIXME: write doc

Author

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