if sortie == 1:
        plt.plot(posisTomX, posisTomY, 'go-')
        plt.text(x, y, message, va = 'bottom', ha = 'center', color = 'green')
    else:
        plt.plot(posisTomX[0:x], posisTomY[0:x], 'bo-')
        if y < 0:
            plt.plot(x - 0.8, y + 0.8, marker = '*', markerfacecolor = 'red', markersize = 10)
            plt.text(x - 0.8, y + 0.8, message, va = 'top', ha = 'center', color = 'blue')
        else:
            plt.plot(x - 0.8, y - 0.8, marker = '*', markerfacecolor = 'red', markersize = 10)
            plt.text(x - 0.8, y - 0.8, message, va = 'bottom', ha = 'center', color = 'blue')
    plt.grid()
    plt.show()