To pass parameters to on_key in fig.canvas.mpl_connect('key_press_event', on_key), we can take the following steps −
- Set the figure size and adjust the padding between and around the subplots.
- Create a figure and a set of subplots.
- Set x and y scale of the axes.
- Bind the function to the event.
- To display the figure, use show() method.
Example
import matplotlib.pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True fig, ax = plt.subplots() ax.set_xlim(0, 10) ax.set_ylim(0, 10) def onkey(event): if event.key.isalpha(): if event.xdata is not None and event.ydata is not None: ax.plot(event.xdata, event.ydata, 'bo-') fig.canvas.draw() cid2 = fig.canvas.mpl_connect('key_press_event', onkey) plt.show()