Ubuntu Manpage: SoTriangleStripSet — triangle strip set shape node

name
inherits from
synopsis
description
fields
methods
action behavior
file format/defaults
see also

Provided by: inventor-doc_2.1.6+ds-2_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
     }