# File interpolate.rb, line 122
    def mouse_cut_repeat
      if @@interpo_previous_cutter.nil?
        raise("You must first use GPhys#mouse_cut. This method repeats it") 
      end
      gpnew = interpolate(@@interpo_previous_cutter)
      gpnew = @@interpo_previous_modifier[gpnew] if @@interpo_previous_modifier
      gpnew
    end