# File karel/karel_window.rb, line 488 def move_scale @canvas.delete(@code) if@isVertical x, y = scaler(street - 0.5, avenue + 0.5) @code = TkcLine.new(@canvas, x, y, x, y - scale_factor, :width => 2) else x, y = scaler(street + 0.5, avenue - 0.5) @code = TkcLine.new(@canvas, x, y, x + scale_factor, y, :width => 2) end end