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Public Member Functions | Static Public Member Functions | Protected Member Functions | Static Protected Member Functions
SoIndexedTriangleStripSet Class Reference

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:
SoIndexedShape SoVertexShape SoShape SoNode SoFieldContainer SoBase

List of all members.

Public Member Functions

virtual SoType getTypeId (void) const
 SoIndexedTriangleStripSet (void)
virtual void GLRender (SoGLRenderAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
virtual SbBool generateDefaultNormals (SoState *state, SoNormalBundle *nb)

Static Public Member Functions

static SoType getClassTypeId (void)
static void initClass (void)

Protected Member Functions

virtual const SoFieldDatagetFieldData (void) const
virtual ~SoIndexedTriangleStripSet ()
virtual SbBool generateDefaultNormals (SoState *state, SoNormalCache *nc)
virtual void generatePrimitives (SoAction *action)
- Protected Member Functions inherited from SoIndexedShape
 SoIndexedShape (void)
virtual ~SoIndexedShape ()
virtual void computeBBox (SoAction *action, SbBox3f &box, SbVec3f &center)
int getNumVerts (const int startCoord)
void setupIndices (const int numParts, const int numFaces, const SbBool needNormals, const SbBool needTexCoords)
const int32_t * getNormalIndices (void)
const int32_t * getColorIndices (void)
const int32_t * getTexCoordIndices (void)
SbBool getVertexData (SoState *state, const SoCoordinateElement *&coords, const SbVec3f *&normals, const int32_t *&cindices, const int32_t *&nindices, const int32_t *&tindices, const int32_t *&mindices, int &numcindices, const SbBool needNormals, SbBool &normalCacheUsed)
- Protected Member Functions inherited from SoVertexShape
 SoVertexShape (void)
virtual ~SoVertexShape ()
virtual SbBool shouldGLRender (SoGLRenderAction *action)
void setNormalCache (SoState *const state, const int num, const SbVec3f *normals)
SoNormalCachegetNormalCache (void) const
SoNormalCachegenerateAndReadLockNormalCache (SoState *const state)
void getVertexData (SoState *state, const SoCoordinateElement *&coords, const SbVec3f *&normals, const SbBool neednormals)
void readLockNormalCache (void)
void readUnlockNormalCache (void)
- Protected Member Functions inherited from SoShape
 SoShape (void)
virtual ~SoShape ()
float getComplexityValue (SoAction *action)
void beginSolidShape (SoGLRenderAction *action)
void endSolidShape (SoGLRenderAction *action)
void GLRenderBoundingBox (SoGLRenderAction *action)
SbBool shouldPrimitiveCount (SoGetPrimitiveCountAction *action)
SbBool shouldRayPick (SoRayPickAction *const action)
void computeObjectSpaceRay (SoRayPickAction *const action)
void computeObjectSpaceRay (SoRayPickAction *const action, const SbMatrix &matrix)
virtual SoDetailcreateTriangleDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3, SoPickedPoint *pp)
virtual SoDetailcreateLineSegmentDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, SoPickedPoint *pp)
virtual SoDetailcreatePointDetail (SoRayPickAction *action, const SoPrimitiveVertex *v, SoPickedPoint *pp)
void invokeTriangleCallbacks (SoAction *const action, const SoPrimitiveVertex *const v1, const SoPrimitiveVertex *const v2, const SoPrimitiveVertex *const v3)
void invokeLineSegmentCallbacks (SoAction *const action, const SoPrimitiveVertex *const v1, const SoPrimitiveVertex *const v2)
void invokePointCallbacks (SoAction *const action, const SoPrimitiveVertex *const v)
void beginShape (SoAction *const action, const TriangleShape shapetype, SoDetail *const detail=NULL)
void shapeVertex (const SoPrimitiveVertex *const v)
void endShape (void)
void generateVertex (SoPrimitiveVertex *const pv, const SbVec3f &point, const SbBool useTexFunc, const SoTextureCoordinateElement *const tce, const float s, const float t, const SbVec3f &normal)
void generateVertex (SoPrimitiveVertex *const pv, const SbVec3f &point, const SbBool useTexFunc, const SoTextureCoordinateElement *const tce, const float s, const float t, const float r, const SbVec3f &normal)
SbBool startVertexArray (SoGLRenderAction *action, const SoCoordinateElement *coords, const SbVec3f *pervertexnormals, const SbBool texpervertex, const SbBool colorpervertex)
void finishVertexArray (SoGLRenderAction *action, const SbBool vbo, const SbBool normpervertex, const SbBool texpervertex, const SbBool colorpervertex)
- Protected Member Functions inherited from SoNode
 SoNode (void)
virtual ~SoNode ()
virtual SbBool readInstance (SoInput *in, unsigned short flags)
- Protected Member Functions inherited from SoFieldContainer
 SoFieldContainer (void)
virtual ~SoFieldContainer ()
- Protected Member Functions inherited from SoBase
 SoBase (void)
virtual ~SoBase ()
virtual void destroy (void)
SbBool hasMultipleWriteRefs (void) const
SbBool writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
void writeFooter (SoOutput *out) const
virtual const char * getFileFormatName (void) const

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)
- Static Protected Member Functions inherited from SoIndexedShape
static SbBool areTexCoordsIndexed (SoAction *action)

Additional Inherited Members

- Public Attributes inherited from SoIndexedShape
SoMFInt32 coordIndex
SoMFInt32 materialIndex
SoMFInt32 normalIndex
SoMFInt32 textureCoordIndex
- Public Attributes inherited from SoVertexShape
SoSFNode vertexProperty

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 {
}

Constructor & Destructor Documentation

SoIndexedTriangleStripSet::SoIndexedTriangleStripSet ( void  )

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

SoIndexedTriangleStripSet::~SoIndexedTriangleStripSet ( )
protectedvirtual

Destructor.


Member Function Documentation

SoType SoIndexedTriangleStripSet::getClassTypeId ( void  )
static

This static method returns the SoType object associated with objects of this class.

Reimplemented from SoIndexedShape.

SoType SoIndexedTriangleStripSet::getTypeId ( void  ) const
virtual

Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting.

Usage example:

void foo(SoNode * node)
{
if (node->getTypeId() == SoFile::getClassTypeId()) {
SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type
}
}

For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.

For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.

Reimplemented from SoIndexedShape.

const SoFieldData ** SoIndexedTriangleStripSet::getFieldDataPtr ( void  )
staticprotected

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

Reimplemented from SoIndexedShape.

const SoFieldData * SoIndexedTriangleStripSet::getFieldData ( void  ) const
protectedvirtual

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoIndexedShape.

void SoIndexedTriangleStripSet::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 SoIndexedShape.

void SoIndexedTriangleStripSet::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 SoIndexedTriangleStripSet::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.

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 
)
protectedvirtual

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)
protectedvirtual

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.


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

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