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SoNormal Class Reference

The SoNormal class is a node for providing normals to the state. More...

#include <Inventor/nodes/SoNormal.h>

Inheritance diagram for SoNormal::

SoNode SoFieldContainer SoBase List of all members.

Public Methods

 SoNormal (void)
virtual void doAction (SoAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void callback (SoCallbackAction *action)
virtual void pick (SoPickAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

Static Public Methods

void initClass (void)

Public Attributes

SoMFVec3f vector

Protected Methods

virtual ~SoNormal ()

Detailed Description

The SoNormal class is a node for providing normals to the state.

Coin will automatically calculate normals for you if no SoNormal nodes are present in the scene graph, but explicitly setting normals is useful for at least two purposes: 1) a potential increase in performance, 2) you can calculate and use "incorrect" normals to do various special effects.

See also:
SoNormalBinding


Constructor & Destructor Documentation

SoNormal::SoNormal void
 

Constructor.

SoNormal::~SoNormal [protected, virtual]
 

Destructor.


Member Function Documentation

void SoNormal::initClass void [static]
 

Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoNode.

void SoNormal::doAction SoAction * action [virtual]
 

This function performs the typical operation of a node for any action.

Reimplemented from SoNode.

void SoNormal::GLRender SoGLRenderAction * action [virtual]
 

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoNode.

void SoNormal::callback SoCallbackAction * action [virtual]
 

Action method for SoCallbackAction.

Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.

Reimplemented from SoNode.

void SoNormal::pick SoPickAction * action [virtual]
 

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

void SoNormal::getPrimitiveCount SoGetPrimitiveCountAction * action [virtual]
 

Action method for the SoGetPrimitiveCountAction.

Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action.

Nodes influencing how geometry nodes calculates their primitive count also overrides this method to change the relevant state variables.

Reimplemented from SoNode.


Member Data Documentation

SoMFVec3f SoNormal::vector
 

Sets a pool of normal vectors in the traversal state.


The documentation for this class was generated from the following files:
Generated at Tue Mar 5 03:31:28 2002 for Coin by doxygen1.2.9 written by Dimitri van Heesch, © 1997-2001