SoIndexedFaceSet(3IV)

NAME
     SoIndexedFaceSet - indexed polygonal face shape node

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

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

          Fields from class SoIndexedShape:

     SoMFInt32           coordIndex
     SoMFInt32           materialIndex
     SoMFInt32           normalIndex
     SoMFInt32           textureCoordIndex

          Fields from class SoVertexShape:

     SoSFNode            vertexProperty

          Methods from class SoIndexedFaceSet:

                         SoIndexedFaceSet()
     static SoType       getClassTypeId()

          Methods from class SoNode:

     void                setOverride(SbBool state)
     SbBool              isOverride() const
     SoNode *            copy(SbBool copyConnections = FALSE) const
     virtual SbBool      affectsState() const
     static SoNode *     getByName(const SbName &name)
     static int          getByName(const SbName &name, SoNodeList &list)

          Methods from class SoFieldContainer:

     void                setToDefaults()
     SbBool              hasDefaultValues() const
     SbBool              fieldsAreEqual(const SoFieldContainer *fc) const
     void                copyFieldValues(const SoFieldContainer *fc, SbBool
                              copyConnections = FALSE)
     SbBool              set(const char *fieldDataString)
     void                get(SbString &fieldDataString)
     virtual int         getFields(SoFieldList &resultList) const
     virtual SoField *   getField(const SbName &fieldName) const
     SbBool              getFieldName(const SoField *field, SbName &fieldName)
                              const
     SbBool              isNotifyEnabled() const
     SbBool              enableNotify(SbBool flag)

          Methods from class SoBase:
     void                ref()
     void                unref() const
     void                unrefNoDelete() const
     void                touch()
     virtual SoType      getTypeId() const
     SbBool              isOfType(SoType type) const
     virtual void        setName(const SbName &name)
     virtual SbName      getName() const


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.

METHODS
                         SoIndexedFaceSet()
          Creates an indexed face set node with default settings.

     static SoType       getClassTypeId()
          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