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SoGetPrimitiveCountAction Class Reference

The SoGetPrimitiveCountAction class counts the primitives in a scene. More...

#include <Inventor/actions/SoGetPrimitiveCountAction.h>

Inheritance diagram for SoGetPrimitiveCountAction::

List of all members.

Public Methods
	SoGetPrimitiveCountAction (void)
virtual	~SoGetPrimitiveCountAction ()
int	getTriangleCount (void) const
int	getLineCount (void) const
int	getPointCount (void) const
int	getTextCount (void) const
int	getImageCount (void) const
SbBool	containsNoPrimitives (void)
SbBool	containsNonTriangleShapes (void)
SbBool	is3DTextCountedAsTriangles (void)
void	setCount3DTextAsTriangles (const SbBool flag)
SbBool	canApproximateCount (void)
void	setCanApproximate (const SbBool flag)
void	setDecimationValue (SoDecimationTypeElement::Type type, float percentage=1.0)
SoDecimationTypeElement::Type	getDecimationType (void)
float	getDecimationPercentage (void)
void	addNumTriangles (const int num)
void	addNumLines (const int num)
void	addNumPoints (const int num)
void	addNumText (const int num)
void	addNumImage (const int num)
void	incNumTriangles (void)
void	incNumLines (void)
void	incNumPoints (void)
void	incNumText (void)
void	incNumImage (void)
Static Public Methods
void	initClass (void)
Protected Methods
virtual void	beginTraversal (SoNode *node)

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Detailed Description

The SoGetPrimitiveCountAction class counts the primitives in a scene.

Apply this action to a scene if you need to know the number of primitives present in a scenegraph, or parts of a scenegraph.

One common mistake to make when using this action is to think that it traverses just the parts currently in view, like SoGLRenderAction does. (SoGLRenderAction culls away the scenegraph parts outside the camera view volume and does not traverse those.) Like most other action classes, SoGetPrimitiveCountAction actually traverses the complete scenegraph, not just the parts currently in view.

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Constructor & Destructor Documentation

SoGetPrimitiveCountAction::SoGetPrimitiveCountAction (  void )

Constructor.

SoGetPrimitiveCountAction::~SoGetPrimitiveCountAction (  )  [virtual]

The destructor.

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Member Function Documentation

void SoGetPrimitiveCountAction::initClass (  void )  [static]

Initializes the run-time type system for this class, and sets up the enabled elements and action method list. Reimplemented from SoAction.

int SoGetPrimitiveCountAction::getTriangleCount (  void )  const

Returns number of triangles in graph.

int SoGetPrimitiveCountAction::getLineCount (  void )  const

Returns number of lines in graph.

int SoGetPrimitiveCountAction::getPointCount (  void )  const

Returns number of points in graph.

int SoGetPrimitiveCountAction::getTextCount (  void )  const

Returns number of texts in the graph.

int SoGetPrimitiveCountAction::getImageCount (  void )  const

Returns the number of images in the graph.

SbBool SoGetPrimitiveCountAction::containsNoPrimitives (  void )

Returns whether there are any primitives in graph or not.

SbBool SoGetPrimitiveCountAction::containsNonTriangleShapes (  void )

Returns whether there are non-triangular primitives in graph.

SbBool SoGetPrimitiveCountAction::is3DTextCountedAsTriangles (  void )

Returns whether SoText3 nodes is counted as triangles or text. See also: is3DTextCountedAsTriangles()

void SoGetPrimitiveCountAction::setCount3DTextAsTriangles (  const SbBool flag )

Sets whether SoText3 nodes are counted as the triangles of the fonts in the text strings or the text itself. The default is to count as triangles. See also: is3DTextCountedAsTriangles()

SbBool SoGetPrimitiveCountAction::canApproximateCount (  void )

Returns whether shapes can use an approximate value when counting primitives. This is faster than doing an accurate count. The default is to not approximate. See also: setCanApproximate()

void SoGetPrimitiveCountAction::setCanApproximate (  const SbBool flag )

Sets whether shapes can do an approximate count. See also: canApproximateCount()

void SoGetPrimitiveCountAction::setDecimationValue (  SoDecimationTypeElement::Type type, float percentage = 1.0 )

Set up the decimation parameters for the traversal. On-the-fly decimation is supported in Coin yet, so this call will not have any effect until this feature has been implemented.

SoDecimationTypeElement::Type SoGetPrimitiveCountAction::getDecimationType (  void )

Returns decimation type used during the traversal count.

float SoGetPrimitiveCountAction::getDecimationPercentage (  void )

Returns decimation percentage used during the traversal count.

void SoGetPrimitiveCountAction::addNumTriangles (  const int num )

Adds num triangles to total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::addNumLines (  const int num )

Adds num lines to total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::addNumPoints (  const int num )

Adds num points to total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::addNumText (  const int num )

Adds num texts to total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::addNumImage (  const int num )

Adds num texture image maps to total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::incNumTriangles (  void )

Adds a single triangle to the total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::incNumLines (  void )

Adds a single line to the total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::incNumPoints (  void )

Adds a single point to the total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::incNumText (  void )

Adds a single text to the total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::incNumImage (  void )

Adds a single texture image map to the total count. Used by node instances in the scene graph during traversal.

void SoGetPrimitiveCountAction::beginTraversal (  SoNode * node )  [protected, virtual]

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

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The documentation for this class was generated from the following files:

• SoGetPrimitiveCountAction.cpp
• SoGetPrimitiveCountAction.h

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