Open
Description
It would be nice to have orthogonal and other types of connection style arrows when adding annotations. Matplotlib has something like:
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
ax.plot([1, 2, 3], [4, 5, 2])
# Annotate with a connection line
ax.annotate("Important Point", xy=(2, 5), xytext=(1.5, 5.5),
arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.2"))
plt.show()
This would be useful for linking bars in timeline for example. Right now if you annotate the bar chart you can only add straight arrows.