EXTERNPROTO NurbsPositionInterpolator [
  eventIn      SFFloat  set_fraction
  eventIn      MFFloat  set_knot
  eventIn      MFFloat  set_order
  eventIn      MFFloat  set_keyValue
  exposedField SFBool   fractionAbsolute 
  exposedField MFFloat  keyWeight        
  field MFFloat  knot					     
  field SFInt32  order					  
  field MFVec3f  keyValue				 
  eventOut     SFVec3f  value_changed 
]
[
	"urn:inet:blaxxun.com:node:NurbsPositionInterpolator",
	"nurbs.wrl#NurbsPositionInterpolator"  # for local testing
	"http://www.blaxxun.com/vrml/protos/nurbs.wrl#NurbsPositionInterpolator"
]