How to refresh text in Matplotlib?

MatplotlibPythonData Visualization

To refresh text in Matplotlib, 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.
  • Add text to the axes.
  • Write customized method to update text based on the keys "z" and "c".
  • Bind the function action with key_press_event.
  • Draw the canvas that contains the figure.
  • Animate the figure with texts.
  • To display the figure, use show() method.

Example

from matplotlib import pyplot as plt, animation

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True
fig, ax = plt.subplots()
text = ax.text(.5, .5, 'First Text')
def action(event):
   if event.key == "z":
      text.set_text("zoom")
   elif event.key == "c":
      text.set_text("cool")

fig.canvas.mpl_connect('key_press_event', action)
fig.canvas.draw()
animation = animation.ArtistAnimation(fig, [(text,)])

plt.show()

Output

raja
Published on 10-Jun-2021 11:41:23
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