This command is part of the On-The-Fly family of commands. Use this family of commands to build your own On-The-Fly OpenGL based primitives that get added to your scene. It must be called within the
<viz>.startLayer and
<viz>.endLayer commands. This will set the point size for all the points created for the current On-The-Fly object.
viz.startLayer(viz.POINTS)
viz.pointSize(8)
viz.vertex(0,1,0)
viz.vertex(3,4,6)
viz.vertex(8,3,1)
viz.endLayer()