SoNormalBundle(3)

NAME
SoNormalBundle - The SoNormalBundle class simplifies normal handling.

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

SYNOPSIS

Inherits SoBundle.

  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

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.

Author

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