SoNormalBundle Class Reference

The SoNormalBundle class simplifies normal handling.This class is currently not used in Coin but is provided for API compatibility. More...

Inheritance diagram for SoNormalBundle:

Public Member Functions
	SoNormalBundle (SoAction *action, SbBool forrendering)
	~SoNormalBundle ()
SbBool	shouldGenerate (int numneeded)
void	initGenerator (int initnum=100)
void	beginPolygon (void)
void	polygonVertex (const SbVec3f &v)
void	endPolygon (void)
void	triangle (const SbVec3f &p1, const SbVec3f &p2, const SbVec3f &p3)
void	generate (int startindex=0, SbBool addtostate=TRUE)
const SbVec3f *	getGeneratedNormals (void) const
int	getNumGeneratedNormals (void) const
void	set (int32_t num, const SbVec3f *normals)
const SbVec3f &	get (int index) const
void	send (int index) const

Public Attributes
SoNormalGenerator *	generator

Additional Inherited Members
Protected Member Functions inherited from SoBundle
	SoBundle (SoAction *action)
	~SoBundle ()
Protected Attributes inherited from SoBundle
SoState *	state
	The state of the current action.

Detailed Description

The SoNormalBundle class simplifies normal handling.

This class is currently not used in Coin but is provided for API compatibility.

Constructor & Destructor Documentation

SoNormalBundle::SoNormalBundle	(	SoAction *	action,
		SbBool	forrendering
	)

Constructor.

SoNormalBundle::~SoNormalBundle

(

)

Destructor.

Member Function Documentation

SbBool SoNormalBundle::shouldGenerate

(

int

numneeded

)

Returns FALSE if there are normals on the state. Otherwise initGenerator() is called with numneeded as argument, and TRUE is returned.

void SoNormalBundle::initGenerator

(

int

initnum = 100

)

Initializes the normal generator. initnum is a hint that should contain the approximate number of normals to be generated.

void SoNormalBundle::beginPolygon

(

void

)

Start polygon specification. Call polygonVertex() for each vertex in the polygon, and then endPolygon() to close the polygon.

See also

polygonVertex(), endPolygon()

void SoNormalBundle::polygonVertex

(

const SbVec3f &

v

)

Call for each vertex in a polygon.

See also

beginPolygon(), endPolygon()

void SoNormalBundle::endPolygon

(

void

)

Call to close a polygon.

See also

beginPolygon(), polygonVertex()

void SoNormalBundle::triangle	(	const SbVec3f &	p1,
		const SbVec3f &	p2,
		const SbVec3f &	p3
	)

Convenience method to specify a triangle. p1, p2, and p3 are the triangles vertices.

void SoNormalBundle::generate	(	int	startindex = 0,
		SbBool	addtostate = TRUE
	)

Generate normals for the shape. startindex should always be 0 (the SoNonIndexedShape::startIndex field is obsoleted). addtostate should be true if the generated normals should be pushed onto the current state.

const SbVec3f * SoNormalBundle::getGeneratedNormals

(

void

)

const

Returns the number of generated normals.

int SoNormalBundle::getNumGeneratedNormals

(

void

)

const

Returns a pointer to the generated normals.

void SoNormalBundle::set	(	int32_t	num,
		const SbVec3f *	normals
	)

Can be used by nodes that generate their own normals. The state will be updated with the new normals, and the state will be popped again when the SoNormalBundle destructor is called.

const SbVec3f & SoNormalBundle::get

(

int

index

)

const

Returns the index'th normal from the state.

void SoNormalBundle::send

(

int

index

)

const

Send the index'th normal to OpenGL.

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

• SoNormalBundle.h
• SoNormalBundle.cpp