Ubuntu Manpage: SoLineSet — polyline shape node

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

NAME

       SoLineSet — polyline shape node

INHERITS FROM

       SoBase  >  SoFieldContainer  >  SoNode  >  SoShape  >  SoVertexShape > SoNonIndexedShape >
       SoLineSet

SYNOPSIS

       #include <Inventor/nodes/SoLineSet.h>

          Fields from class SoLineSet:

     SoMFInt32           numVertices

          Fields from class SoNonIndexedShape:

     SoSFInt32           startIndex

          Fields from class SoVertexShape:

     SoSFNode            vertexProperty

          Methods from class SoLineSet:

                         SoLineSet()
     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 polylines from vertices located at
the coordinates specified in the vertexProperty field (from SoVertexShape), or the current
inherited coordinates. For optimal performance, the vertexProperty field is recommended.

SoLineSet uses the coordinates in order, starting with the first one. Each line has a
number of vertices specified by a value in the numVertices field. For example, an
SoLineSet with a numVertices of [3,4,2] would use coordinates 1, 2, and 3 for the first
line, coordinates 4, 5, 6, and 7 for the second line, and coordinates 8 and 9 for the
third.

The number of values in the numVertices field indicates the number of polylines in the
set.

The coordinates of the line set are transformed by the current cumulative transformation.
The lines are drawn with the current light model and drawing style (drawing style FILLED
is treated as LINES).

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

The current complexity value has no effect on the rendering of line sets.

FIELDS

     SoMFInt32           numVertices
          Number of vertices per polyline.

METHODS

                         SoLineSet()
          Creates a line set node with default settings.

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

ACTION BEHAVIOR

       SoGLRenderAction
          Draws lines based on the current coordinates, normals, materials, drawing style, and so
          on.

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

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

     SoCallbackAction
          If any line segment callbacks are registered with the action, they will be invoked  for
          each successive segment in the line set.

FILE FORMAT/DEFAULTS

       LineSet {
          vertexProperty  NULL
          startIndex      0
          numVertices     -1
     }