matplotlib中Axes的用法札记

import matplotlib.pyplot as plt

fig = plt.figure()
fig.suptitle("bold figure suptitle", fontsize=14, fontweight="bold")
ax = fig.add_subplot(111)
fig.subplots_adjust(top=0.85)
ax.set_title("axes title")
ax.set_xlabel("xlabel")
ax.set_ylabel("ylabel")
ax.text(3, 8, "boxed italics text in data coords", style="italic",
        bbox={"facecolor":"red", "alpha":0.5, "pad":10})
ax.text(2, 6, r"an equation: $E=mc^2$", fontsize=15)
# ax.text(3, 2, unicode("unicode: Institut f374r Festk366rperphysik", "latin-1"))
ax.text(0.95, 0.01, "colored text in axes coords",
        verticalalignment="bottom", horizontalalignment="right",
        transform=ax.transAxes,
        color="green", fontsize=15)
ax.plot([2,3,4], [1,2,5], "o")
ax.annotate("annotate", xy=(2, 1), xytext=(3, 4),
            arrowprops=dict(facecolor="black", shrink=0.05))
ax.axis([0, 10, 0, 11])
plt.show()