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PPXYZ-ARRAY

 PPXYZ(*).....(X,Y,Z) coordinates of projective point (DEFAULT (0,0,1)).

 RESET........ .TRUE. - Reset defaults for next set of input data.  This
                        is the default.
              .FALSE. - Use current  parameter  values as  defaults  for
                        next set  of input  data.   This is  useful  for
                        producing several plots  with perhaps  different
                        scales and axis types from the same set of  data
                        points.