>>> """
===========================================
Changing colors of lines intersecting a box
===========================================

The lines intersecting the rectangle are colored in red, while the others
are left as blue lines. This example showcases the `.intersects_bbox` function.

"""
... 
... import numpy as np
... import matplotlib.pyplot as plt
... from matplotlib.transforms import Bbox
... from matplotlib.path import Path
... 
... # Fixing random state for reproducibility
... np.random.seed(19680801)
... 
... 
... left, bottom, width, height = (-1, -1, 2, 2)
... rect = plt.Rectangle((left, bottom), width, height,
...                      facecolor="black", alpha=0.1)
... 
... 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()
...