SoIndexedFaceSet(3IV)

NAME
     SoIndexedFaceSet (SoIndFSet) - indexed polygonal face shape node

INHERITS FROM
     SoBase > SoFieldContainer > SoNode > SoShape > SoVertexShape >
     SoIndexedShape > SoIndexedFaceSet

SYNOPSIS
     #include <Inventor_c/nodes/SoIndexedFaceSet.h>

     typedef SoIndexedFaceSet  SoIndFSet

          Fields from class SoIndexedShape:

     SoMFInt32           coordIndex
     SoMFInt32           materialIndex
     SoMFInt32           normalIndex
     SoMFInt32           textureCoordIndex

          Fields from class SoVertexShape:

     SoSFNode            vertexProperty

          Functions from class SoIndexedFaceSet:

     SoIndexedFaceSet *  SoIndFSetCreate()
     SoType              SoIndFSetGetClassTypeId()

          Functions from class SoNode:

     void                SoIndFSetSetOverride(SoIndFSet *this, SbBool state)
     SbBool              SoIndFSetIsOverride(const SoIndFSet *this)
     SoNode *            SoIndFSetCopy(const SoIndFSet *this, SbBool
                              copyConnections = FALSE)
     SbBool              SoIndFSetAffectsState(const SoIndFSet *this)
     SoNode *            SoIndFSetGetByName(const char *name)
     int                 SoIndFSetGetByNameList(const char *name, SoNodeList
                              *list)

          Functions from class SoFieldContainer:

     void                SoIndFSetSetToDflts(SoIndFSet *this)
     SbBool              SoIndFSetHasDfltVals(const SoIndFSet *this)
     SbBool              SoIndFSetFldsAreEq(const SoIndFSet *this, const
                              SoFieldContainer *fc)
     void                SoIndFSetCopyFieldVals(SoIndFSet *this, const
                              SoFieldContainer *fc, SbBool copyConnections =
                              FALSE)
     SbBool              SoIndFSetSet(SoIndFSet *this, const char
                              *fieldDataString)
     void                SoIndFSetGet(SoIndFSet *this, SbString
                              *fieldDataString)
     int                 SoIndFSetGetFields(const SoIndFSet *this, SoFieldList
                              *resultList)
     SoField *           SoIndFSetGetField(const SoIndFSet *this, const char
                              *fieldName)
     SbBool              SoIndFSetGetFieldName(const SoIndFSet *this, const
                              SoField *field, SbName *fieldName)
     SbBool              SoIndFSetIsNotifyEnabled(const SoIndFSet *this)
     SbBool              SoIndFSetEnableNotify(SoIndFSet *this, SbBool flag)

          Functions from class SoBase:

     void                SoIndFSetRef(SoIndFSet *this)
     void                SoIndFSetUnref(const SoIndFSet *this)
     void                SoIndFSetUnrefNoDelete(const SoIndFSet *this)
     void                SoIndFSetTouch(SoIndFSet *this)
     SoType              SoIndFSetGetTypeId(const SoIndFSet *this)
     SbBool              SoIndFSetIsOfType(const SoIndFSet *this, SoType type)
     void                SoIndFSetSetName(SoIndFSet *this, const char *name)
     SbName              SoIndFSetGetName(const SoIndFSet *this)


DESCRIPTION
     This node represents a 3D shape formed by constructing faces (polygons)
     from vertices located at the coordinates specified in the vertexProperty
     field (from SoVertexShape), or the current inherited state. For optimal
     performance, the vertexProperty field is recommended.

     SoIndexedFaceSet uses the indices in the coordIndex field (from
     SoIndexedShape) to specify the polygonal faces. An index of
     SO_END_FACE_INDEX (-1) indicates that the current face has ended and the
     next one begins. For improved performance, arrange all the faces with
     only 3 vertices at beginning of the list, then all faces with 4 vertices,
     and finally all other faces.

     The vertices of the faces are transformed by the current transformation
     matrix. The faces are drawn with the current light model and drawing
     style.

     Treatment of the current material and normal binding is as follows: The
     PER_PART and PER_FACE bindings specify a material or normal for each
     face. PER_VERTEX specifies a material or normal for each vertex. The
     corresponding _INDEXED bindings are the same, but use the materialIndex
     or normalIndex indices (see SoIndexedShape). The default material binding
     is OVERALL. The default normal binding is PER_VERTEX_INDEXED.

     If any normals (or materials) are specified, Inventor assumes you provide
     the correct number of them, as indicated by the binding. You will see
     unexpected results if you specify fewer normals (or materials) than the
     shape requires. If no normals are specified, they will be generated
     automatically.

     Textures are applied as described for the SoIndexedShape class.
FUNCTIONS
     SoIndexedFaceSet *  SoIndFSetCreate()
          Creates an indexed face set node with default settings.

     SoType              SoIndFSetGetClassTypeId()
          Returns type identifier for this class.


ACTION BEHAVIOR
     SoGLRenderAction
          Draws faces based on the current coordinates, normals, materials,
          drawing style, and so on.

     SoRayPickAction
          Picks faces based on the current coordinates and transformation.
          Details about the intersection are returned in an SoFaceDetail.

     SoGetBoundingBoxAction
          Computes the bounding box that encloses all vertices of the face set
          with the current transformation applied to them. Sets the center to
          the average of the coordinates of all vertices.

     SoCallbackAction
          If any triangle callbacks are registered with the action, they will
          be invoked for each successive triangle generated from each face in
          the set.


FILE FORMAT/DEFAULTS
     IndexedFaceSet {
          vertexProperty     NULL
          coordIndex         0
          materialIndex      -1
          normalIndex        -1
          textureCoordIndex  -1
     }

SEE ALSO
     SoCoordinate3, SoDrawStyle, SoFaceDetail, SoFaceSet, SoVertexProperty