Matplotlib / python clickable points

Question

I have a bunch of time series data with points every 5 seconds. So, I can create a line plot and even smooth the data to have a smoother plot. The question is, is there any

Answer 1

If in case you want to bind extra property to your artist object, for example you are plotting IMDB ratings of several movies, and you want to see by clicking on a point which movie it corresponds to, you can do that by adding a custom object to the point that you plotted, like this:

import matplotlib.pyplot as plt

class custom_objects_to_plot:
    def __init__(self, x, y, name):
        self.x = x
        self.y = y
        self.name = name

a = custom_objects_to_plot(10, 20, "a")
b = custom_objects_to_plot(30, 5, "b")
c = custom_objects_to_plot(40, 30, "c")
d = custom_objects_to_plot(120, 10, "d")

def on_pick(event):
    print(event.artist.obj.name)

fig, ax = plt.subplots()
for obj in [a, b, c, d]:
    artist = ax.plot(obj.x, obj.y, 'ro', picker=5)[0]
    artist.obj = obj

fig.canvas.callbacks.connect('pick_event', on_pick)

plt.show()

Now when you click one of the points on the plot, the name property of the corresponding object will be printed.