Python实现改变与矩形橡胶的线条的颜色代码示例

import numpy as npimport matplotlib.pyplot as pltfrom matplotlib.transforms import Bboxfrom matplotlib.path import Path# Fixing random state for reproducibilitynp.random.seed(19680801)left, bottom, width, height = (-1, -1, 2, 2)rect = plt.Rectangle((left, bottom), width, height, facecolor="#aaaaaa")fig, ax = plt.subplots()ax.add_patch(rect)bbox = Bbox.from_bounds(left, bottom, width, height)for i in range(12):  vertices = (np.random.random((2, 2)) - 0.5) * 6.0  path = Path(vertices)  if path.intersects_bbox(bbox):    color = 'r'  else:    color = 'b'  ax.plot(vertices[:, 0], vertices[:, 1], color=color)plt.show()