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NAME

       SoLineSet -

       The SoLineSet class is used to render and organize non-indexed
       polylines.

       Polylines are specified using the numVertices field. Coordinates,
       normals, materials and texture coordinates are fetched in order from
       the current state or from the vertexProperty node if set. For example,
       if numVertices is set to [3, 4, 2], this node would specify a line
       through coordinates 0, 1 and 2, a line through coordinates 3, 4, 5 and
       6, and finally a single line segment between coordinates 7 and 8.

SYNOPSIS

       #include <Inventor/nodes/SoLineSet.h>

       Inherits SoNonIndexedShape.

   Public Member Functions
       SoLineSet (void)
       virtual void GLRender (SoGLRenderAction *action)
       virtual void getBoundingBox (SoGetBoundingBoxAction *action)
       virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

   Static Public Member Functions
       static void initClass (void)

   Public Attributes
       SoMFInt32 numVertices

   Protected Member Functions
       virtual ~SoLineSet ()
       virtual void generatePrimitives (SoAction *action)
       virtual void computeBBox (SoAction *action, SbBox3f &box, SbVec3f
           &center)

Detailed Description

       The SoLineSet class is used to render and organize non-indexed
       polylines.

       Polylines are specified using the numVertices field. Coordinates,
       normals, materials and texture coordinates are fetched in order from
       the current state or from the vertexProperty node if set. For example,
       if numVertices is set to [3, 4, 2], this node would specify a line
       through coordinates 0, 1 and 2, a line through coordinates 3, 4, 5 and
       6, and finally a single line segment between coordinates 7 and 8.

       Here’s a very simple usage example:

         #Inventor V2.1 ascii

         Separator {
            Coordinate3 {
               point [ 0 0 0, 1 1 1, 2 1 1, 2 2 1, 2 2 2, 2 2 3, 2 3 2, 2 3 3, 3 3 3 ]
            }

            LineSet {
               numVertices [ 3, 4, 2 ]
            }
         }
         .fi

       Binding PER_VERTEX, PER_FACE, PER_PART or OVERALL can be set for material, and normals. The default material binding is OVERALL. The default normal binding is PER_VERTEX. If no normals are set, the line set will be rendered with lighting disabled.

       The width of the rendered lines can be controlled through the insertion of an SoDrawStyle node in front of SoLineSet node(s) in the scenegraph.

       FILE FORMAT/DEFAULTS:

           LineSet {
               vertexProperty NULL
               startIndex 0
               numVertices -1
           }

       See also:
           SoIndexedLineSet

Constructor & Destructor Documentation

   SoLineSet::SoLineSet (void) Constructor.
   SoLineSet::~SoLineSet () [protected, virtual] Destructor.

Member Function Documentation

   void SoLineSet::initClass (void) [static] Sets up initialization for data
       common to all instances of this class, like submitting necessary
       information to the Coin type system.
       Reimplemented from SoNonIndexedShape.

   void SoLineSet::GLRender (SoGLRenderAction * action) [virtual] Action
       method for the SoGLRenderAction.
       This is called during rendering traversals. Nodes influencing the
       rendering state in any way or who wants to throw geometry primitives at
       OpenGL overrides this method.

       Reimplemented from SoShape.

   void SoLineSet::getBoundingBox (SoGetBoundingBoxAction * action) [virtual]
       Action method for the SoGetBoundingBoxAction.
       Calculates bounding box and center coordinates for node and modifies
       the values of the action to encompass the bounding box for this node
       and to shift the center point for the scene more towards the one for
       this node.

       Nodes influencing how geometry nodes calculates their bounding box also
       overrides this method to change the relevant state variables.

       Reimplemented from SoShape.

   void SoLineSet::getPrimitiveCount (SoGetPrimitiveCountAction * action)
       [virtual] Action method for the SoGetPrimitiveCountAction.
       Calculates the number of triangle, line segment and point primitives
       for the node and adds these to the counters of the action.

       Nodes influencing how geometry nodes calculates their primitive count
       also overrides this method to change the relevant state variables.

       Reimplemented from SoShape.

   void SoLineSet::generatePrimitives (SoAction * action) [protected, virtual]
       The method implements action behavior for shape nodes for
       SoCallbackAction. It is invoked from SoShape::callback(). (Subclasses
       should not override SoNode::callback().)
       The subclass implementations uses the convenience methods
       SoShape::beginShape(), SoShape::shapeVertex(), and SoShape::endShape(),
       with SoDetail instances, to pass the primitives making up the shape
       back to the caller.

       Implements SoShape.

   void SoLineSet::computeBBox (SoAction * action, SbBox3f & box, SbVec3f &
       center) [protected, virtual] Implemented by SoShape subclasses to let
       the SoShape superclass know the exact size and weighted center point of
       the shape’s bounding box.
       The bounding box and center point should be calculated and returned in
       the local coordinate system.

       The method implements action behavior for shape nodes for
       SoGetBoundingBoxAction. It is invoked from SoShape::getBoundingBox().
       (Subclasses should not override SoNode::getBoundingBox().)

       The box parameter sent in is guaranteed to be an empty box, while
       center is undefined upon function entry.

       Implements SoShape.

Member Data Documentation

   SoMFInt32 SoLineSet::numVertices Used to specify polylines. Each entry
       specifies the number of coordinates in a line. The coordinates are
       taken in order from the state or from the vertexProperty node.

Author

       Generated automatically by Doxygen for Coin from the source code.