plotting.py 文件源码

def generate_subplots(self, x, *args):
        def _on_xlims_change(axes):
            # reset the x-axis format when the plot is resized
            axes.get_xaxis().set_major_formatter(DateFormatter('%H:%M:%S'))

        i = 0
        numplots = len(args)
        fig = plt.figure()

        self.cidclick = fig.canvas.mpl_connect('button_press_event', self.onclick)
        self.cidrelease = fig.canvas.mpl_connect('button_release_event', self.onrelease)
        self.cidmotion = fig.canvas.mpl_connect('motion_notify_event', self.onmotion)

        for arg in args:
            if i == 0:
                a = fig.add_subplot(numplots, 1, i+1)
            else:
                a = fig.add_subplot(numplots, 1, i+1, sharex=self.axes[0])

            a.plot(x.to_pydatetime(), arg)
            a.fmt_xdata = DateFormatter('%H:%M:%S')
            a.grid(True)
            a.callbacks.connect('xlim_changed', _on_xlims_change)
            self.axes.append(a)
            i += 1

        if not mpl.is_interactive():
            fig.show()

        self.figure = fig
        plt.show()

    # TO DO: Consider PatchCollection for rectangles.