Ubuntu Manpage: SoTriangleStripSet — triangle strip set shape node

Provided by: inventor-doc_2.1.5-10-18_all

NAME

       SoTriangleStripSet — triangle strip set shape node

INHERITS FROM

       SoBase  >  SoFieldContainer  >  SoNode  >  SoShape  >  SoVertexShape > SoNonIndexedShape >
       SoTriangleStripSet

SYNOPSIS

       #include <Inventor/nodes/SoTriangleStripSet.h>

          Fields from class SoTriangleStripSet:

     SoMFInt32           numVertices

          Fields from class SoNonIndexedShape:

     SoSFInt32           startIndex

          Fields from class SoVertexShape:

     SoSFNode            vertexProperty

          Methods from class SoTriangleStripSet:

                         SoTriangleStripSet()
     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 shape node constructs triangle strips out of vertices. The vertices may be specified
in the vertexProperty field (from SoVertexShape), or by the current inherited coordinates.
For optimal performance, the vertexProperty field is recommended.

SoTriangleStripSet is one of the fastest ways of drawing polygonal objects in Inventor. It
uses the current coordinates, in order, starting with the first one. The values in the
numVertices field indicate the number of vertices to use for each triangle strip in the
set. The number of values in this field determines the number of strips.

For example, if numVertices has the values [3,5], coordinates 1, 2, and 3 would be used
for the first triangle strip and coordinates 4, 5, 6, 7, and 8 would be used for the
second strip. This would result in 1 triangle in the first strip and 3 in the second.

The coordinates of the strips are transformed by the current cumulative transformation.
The strips are drawn with the current light model and drawing style.

Treatment of the current material and normal binding is as follows: The PER_PART binding
specifies a material or normal for each strip of the set. The PER_FACE binding specifies a
material or normal for each triangle. The _INDEXED bindings are equivalent to their non-
indexed counterparts. The default normal binding is PER_VERTEX. The default material
binding is OVERALL.

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.

FIELDS

     SoMFInt32           numVertices
          Number of vertices in each triangle strip. The number of strips is equal to the  number
          of values in this field.

METHODS

                         SoTriangleStripSet()
          Creates a triangle strip set node with default settings.

     static SoType       getClassTypeId()
          Returns type identifier for this class.

ACTION BEHAVIOR

       SoGLRenderAction
          Draws  a strip set based on the current coordinates, normals, materials, drawing style,
          and so on.

     SoRayPickAction
          Picks on the strip set 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 strip 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 forming the strips of the set.

FILE FORMAT/DEFAULTS

       TriangleStripSet {
          vertexProperty  NULL
          startIndex      0
          numVertices     -1
     }