SoIndexedTriangleStripSet Class Reference
[Node Classes]

The SoIndexedTriangleStripSet class keeps data for rendering and otherwise representing triangle strips.Use nodes of this type as an effective way of drawing triangles which are strung together. More...

#include <Inventor/nodes/SoIndexedTriangleStripSet.h>

Inheritance diagram for SoIndexedTriangleStripSet:

List of all members.

Public Member Functions
	SoIndexedTriangleStripSet (void)
virtual void	GLRender (SoGLRenderAction *action)
virtual void	getPrimitiveCount (SoGetPrimitiveCountAction *action)
virtual SbBool	generateDefaultNormals (SoState *state, SoNormalBundle *nb)
Static Public Member Functions
static void	initClass (void)
	Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
Protected Member Functions
virtual	~SoIndexedTriangleStripSet ()
virtual SbBool	generateDefaultNormals (SoState *state, SoNormalCache *nc)
virtual void	generatePrimitives (SoAction *action)

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Detailed Description

The SoIndexedTriangleStripSet class keeps data for rendering and otherwise representing triangle strips.

Use nodes of this type as an effective way of drawing triangles which are strung together.

For more information, see the documentation of the SoTriangleStripSet node.

To render several strips within the same node, just separate the coordinate indices with -1. For more information about indexed shapes, see documentation in SoIndexedShape and SoIndexedFaceSet.

Example scene graph:

  #Inventor V2.1 ascii
  
  Separator {
     Coordinate3 {
        point [
         -2 1 0, -1 -1 0, 0 1 0, 1 -1 0, 2 1 0, # first strip, z==0
         -2 1 5, -1 -1 5, 0 1 5, 1 -1 5, 2 1 5  # second strip, z==5
        ]
     }
  
     IndexedTriangleStripSet {
        coordIndex [
         0, 1, 2, 3, 4, -1,
         5, 6, 7, 8, 9, -1
        ]
     }
  }
  

FILE FORMAT/DEFAULTS:

    IndexedTriangleStripSet {
        vertexProperty NULL
        coordIndex 0
        materialIndex -1
        normalIndex -1
        textureCoordIndex -1
    }

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Constructor & Destructor Documentation

SoIndexedTriangleStripSet::SoIndexedTriangleStripSet

(

void

)

Constructor. Default field values will equal those set in the SoIndexedShape parent class.

SoIndexedTriangleStripSet::~SoIndexedTriangleStripSet

(

)

[protected, virtual]

Destructor.

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Member Function Documentation

SbBool SoIndexedTriangleStripSet::generateDefaultNormals	(	SoState *	state,
		SoNormalBundle *	bundle
	)			[virtual]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Subclasses should override this method to generate default normals using the SoNormalBundle class. TRUE should be returned if normals were generated, FALSE otherwise.

Default method returns FALSE.

This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

Reimplemented from SoVertexShape.

SbBool SoIndexedTriangleStripSet::generateDefaultNormals	(	SoState *	state,
		SoNormalCache *	cache
	)			[protected, virtual]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Subclasses should override this method to generate default normals using the SoNormalCache class. This is more effective than using SoNormalGenerator. Return TRUE if normals were generated, FALSE otherwise.

Default method just returns FALSE.

This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

Reimplemented from SoVertexShape.

void SoIndexedTriangleStripSet::generatePrimitives

(

SoAction *

action

)

[protected, virtual]

The method implements action behavior for shape nodes for SoCallbackAction. It is invoked from SoShape::callback(). (Subclasses should not override SoNode::callback().)

The subclass implementations uses the convenience methods SoShape::beginShape(), SoShape::shapeVertex(), and SoShape::endShape(), with SoDetail instances, to pass the primitives making up the shape back to the caller.

Implements SoShape.

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

• SoIndexedTriangleStripSet.h
• SoIndexedTriangleStripSet.cpp