注释说明
import matplotlib.pyplot as plt
import matplotlib.patches as mpatches
fig, axs = plt.subplots(2, 2)
x1, y1 = 0.3, 0.3
x2, y2 = 0.7, 0.7
ax = axs.flat[0]
ax.plot([x1, x2], [y1, y2], ".")
el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)
ax.add_artist(el)
ax.annotate("",
xy=(x1, y1), xycoords='data',
xytext=(x2, y2), textcoords='data',
arrowprops=dict(arrowstyle="-",
color="0.5",
patchB=None,
shrinkB=0,
connectionstyle="arc3,rad=0.3",
),
)
ax.text(.05, .95, "connect", transform=ax.transAxes, ha="left", va="top")
ax = axs.flat[1]
ax.plot([x1, x2], [y1, y2], ".")
el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)
ax.add_artist(el)
ax.annotate("",
xy=(x1, y1), xycoords='data',
xytext=(x2, y2), textcoords='data',
arrowprops=dict(arrowstyle="-",
color="0.5",
patchB=el,
shrinkB=0,
connectionstyle="arc3,rad=0.3",
),
)
ax.text(.05, .95, "clip", transform=ax.transAxes, ha="left", va="top")
ax = axs.flat[2]
ax.plot([x1, x2], [y1, y2], ".")
el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)
ax.add_artist(el)
ax.annotate("",
xy=(x1, y1), xycoords='data',
xytext=(x2, y2), textcoords='data',
arrowprops=dict(arrowstyle="-",
color="0.5",
patchB=el,
shrinkB=5,
connectionstyle="arc3,rad=0.3",
),
)
ax.text(.05, .95, "shrink", transform=ax.transAxes, ha="left", va="top")
ax = axs.flat[3]
ax.plot([x1, x2], [y1, y2], ".")
el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)
ax.add_artist(el)
ax.annotate("",
xy=(x1, y1), xycoords='data',
xytext=(x2, y2), textcoords='data',
arrowprops=dict(arrowstyle="fancy",
color="0.5",
patchB=el,
shrinkB=5,
connectionstyle="arc3,rad=0.3",
),
)
ax.text(.05, .95, "mutate", transform=ax.transAxes, ha="left", va="top")
for ax in axs.flat:
ax.set(xlim=(0, 1), ylim=(0, 1), xticks=[], yticks=[], aspect=1)
plt.show()