EXTERNPROTO NurbsCurve [
    field             MFFloat   knot             
    field             SFInt32   order                
  
    exposedField      MFVec3f   controlPoint     
    exposedField      MFFloat   weight          
    exposedField      SFInt32  tessellation      
  ] 
  [
          "urn:inet:blaxxun.com:node:NurbsCurve",
          "nurbs.wrl#NurbsCurve"  # for local testing
          "http://www.blaxxun.com/vrml/protos/nurbs.wrl#NurbsCurve"
  ]