%N erswincg %F $MIR/src/subs/cgpgsubs.for
%D Erase window from PGPLOT device
%P nebk
%: plotting
%B
      subroutine erswincg (xmin, xmax, ymin, ymax)

      real xmin, xmax, ymin, ymax
  ---------------------------------------------------------------------
  Erase the specified window from the PGPLOT device with
  rectangle fill

  Input
    x,ymin,max    Window in world coordinates
