nurl
Keywords: cgx

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##
nurl

       'nurl' <name(char9)>|'!' ['DEFINE' ['COMPACT'] <pstart> <pend>  ->
                              <deg> <npnt> <nknt> <div>]|
                              ['CONTROL' <index> [<pnt>|<x y z>] <weight>]|
                              ['KNOT' <index> <value>]|
                              ['END']

This keyword is used to define a nurbs line. So far this command is only used to read a nurbs-line definition. This line will be converted automatically into a spline. Nurbs-lines can be displayed but will not be saved. There are two possible ways of definition. Either by using predefined point-names or by specifying the coordinates explicitly. When the coordinates are defined then the parameter ``COMPACT'' must be used as shown above but when the point names are used then this parameter must be omitted. CAD-interfaces might use this functionality.