我有以下代码:
import matplotlib.pyplot as plt
from matplotlib.patches import Circle
import numpy as np
plt.yticks(np.arange(-10, 10.01, 1))
plt.xticks(np.arange(-10, 10.01, 1))
plt.xlim(-10,9)
plt.ylim(-10,9)
plt.gca().invert_yaxis()
# Set aspect ratio to be equal
plt.gca().set_aspect('equal', adjustable='box')
plt.grid()
np.random.seed(40)
square = np.empty((10, 10), dtype=np.int_)
for x in np.arange(0, 10, 1):
for y in np.arange(0, 10, 1):
plt.scatter(x, y, color='blue', s=2, zorder=2, clip_on=False)
for x in np.arange(0, 10, 1):
for y in np.arange(0, 10, 1):
value = np.random.randint(-3, 4)
square[int(x), int(y)] = value
r1 = 3
circle1 = Circle((0, 0), r1, color="blue", alpha=0.5, ec='k', lw=1)
r2 = 6
circle2 = Circle((0, 0), r2, color="blue", alpha=0.5, ec='k', lw=1)
plt.gca().add_patch(circle1)
plt.gca().add_patch(circle2)
这表明:
然而，我想只有四分之一的圆圈是在x，y范围0至9被着色，其余的有一个白色的背景.
我怎么能做到这一点？
