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SoIndexedNurbsSurface Class Reference

The SoIndexedNurbsSurface class can be used to render NURBS surfaces. More...

#include <Inventor/nodes/SoIndexedNurbsSurface.h>

Inheritance diagram for SoIndexedNurbsSurface::

List of all members.

Public Methods
	SoIndexedNurbsSurface (void)
virtual void	GLRender (SoGLRenderAction *action)
virtual void	rayPick (SoRayPickAction *action)
virtual void	getPrimitiveCount (SoGetPrimitiveCountAction *action)
void	sendPrimitive (SoAction *, SoPrimitiveVertex *)
Static Public Methods
void	initClass (void)
Public Attributes
SoSFInt32	numUControlPoints
SoSFInt32	numVControlPoints
SoMFInt32	coordIndex
SoMFFloat	uKnotVector
SoMFFloat	vKnotVector
SoSFInt32	numSControlPoints
SoSFInt32	numTControlPoints
SoMFInt32	textureCoordIndex
SoMFFloat	sKnotVector
SoMFFloat	tKnotVector
Protected Methods
virtual	~SoIndexedNurbsSurface ()
virtual void	generatePrimitives (SoAction *action)
virtual void	computeBBox (SoAction *action, SbBox3f &box, SbVec3f &center)
SoDetail *	createTriangleDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3, SoPickedPoint *pp)

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Detailed Description

The SoIndexedNurbsSurface class can be used to render NURBS surfaces.

It is very similar to the SoNurbsSurface class, but controlpoints can be specified using indices.

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Constructor & Destructor Documentation

SoIndexedNurbsSurface::SoIndexedNurbsSurface (  void )

Constructor.

SoIndexedNurbsSurface::~SoIndexedNurbsSurface (  )  [protected, virtual]

Destructor.

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Member Function Documentation

void SoIndexedNurbsSurface::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 SoShape.

void SoIndexedNurbsSurface::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 SoShape.

void SoIndexedNurbsSurface::rayPick (  SoRayPickAction * action )  [virtual]

Calculates picked point based on primitives generated by subclasses. Reimplemented from SoShape.

void SoIndexedNurbsSurface::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 SoShape.

void SoIndexedNurbsSurface::sendPrimitive (  SoAction * , SoPrimitiveVertex * )

This method is part of the original SGI Inventor API, but not implemented in Coin, as it looks like a method that should probably have been private in Open Inventor.

void SoIndexedNurbsSurface::generatePrimitives (  SoAction * action )  [protected, virtual]

For internal use only. Reimplemented from SoShape.

void SoIndexedNurbsSurface::computeBBox (  SoAction * action, SbBox3f & box, SbVec3f & center )  [protected, virtual]

Calculates the bounding box of all control points and sets the center to the average of these points. Reimplemented from SoShape.

SoDetail * SoIndexedNurbsSurface::createTriangleDetail (  SoRayPickAction * action, const SoPrimitiveVertex * v1, const SoPrimitiveVertex * v2, const SoPrimitiveVertex * v3, SoPickedPoint * pp )  [protected, virtual]

Overloaded to return NULL. Reimplemented from SoShape.

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Member Data Documentation

SoSFInt32 SoIndexedNurbsSurface::numUControlPoints

Number of control points in the U direction.

SoSFInt32 SoIndexedNurbsSurface::numVControlPoints

Number of control points in the V direction.

SoMFInt32 SoIndexedNurbsSurface::coordIndex

The coordinate control point indices.

SoMFFloat SoIndexedNurbsSurface::uKnotVector

The Bezier knot vector for the U direction.

SoMFFloat SoIndexedNurbsSurface::vKnotVector

The Bezier knot vector for the V direction.

SoSFInt32 SoIndexedNurbsSurface::numSControlPoints

Number of control points in the S direction.

SoSFInt32 SoIndexedNurbsSurface::numTControlPoints

Number of control points in the T direction.

SoMFInt32 SoIndexedNurbsSurface::textureCoordIndex

The texture coordinate control point indices.

SoMFFloat SoIndexedNurbsSurface::sKnotVector

The Bezier knot vector for the S direction.

SoMFFloat SoIndexedNurbsSurface::tKnotVector

The Bezier knot vector for the T direction.

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

• SoIndexedNurbsSurface.cpp
• SoIndexedNurbsSurface.h

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