def move_view(event):
            ax.autoscale(enable=False, axis='both')  # I have no idea, it this line have some effect at all
            ## Set nearly similar speed of motion in dependency on zoom
            if view_2D:
                koef = 4.  ## Speed for 2D should be higher
            else:
                koef = 8.  ## speed for 3D should be lower
                zkoef = (ax.get_zbound()[0] - ax.get_zbound()[1]) / koef

            xkoef = (ax.get_xbound()[0] - ax.get_xbound()[1]) / koef
            ykoef = (ax.get_ybound()[0] - ax.get_ybound()[1]) / koef

            ## Map an motion to keyboard shortcuts
            if event.key == "ctrl+down":
                ax.set_ybound(ax.get_ybound()[0] + xkoef, ax.get_ybound()[1] + xkoef)
            if event.key == "ctrl+up":
                ax.set_ybound(ax.get_ybound()[0] - xkoef, ax.get_ybound()[1] - xkoef)
            if event.key == "ctrl+right":
                ax.set_xbound(ax.get_xbound()[0] + ykoef, ax.get_xbound()[1] + ykoef)
            if event.key == "ctrl+left":
                ax.set_xbound(ax.get_xbound()[0] - ykoef, ax.get_xbound()[1] - ykoef)
            if not view_2D:
                if event.key == "down":
                    ax.set_zbound(ax.get_zbound()[0] - zkoef, ax.get_zbound()[1] - zkoef)
                if event.key == "up":
                    ax.set_zbound(ax.get_zbound()[0] + zkoef, ax.get_zbound()[1] + zkoef)
            # print event.key

        fig.canvas.mpl_connect("key_press_event", move_view)