.. only:: html
.. note::
:class: sphx-glr-download-link-note
Click :ref:`here ` to download the full example code
.. rst-class:: sphx-glr-example-title
.. _sphx_glr_gallery_misc_bbox_intersect.py:
===========================================
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.
.. image:: /gallery/misc/images/sphx_glr_bbox_intersect_001.png
:alt: bbox intersect
:class: sphx-glr-single-img
.. code-block:: default
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()
.. _sphx_glr_download_gallery_misc_bbox_intersect.py:
.. only :: html
.. container:: sphx-glr-footer
:class: sphx-glr-footer-example
.. container:: sphx-glr-download sphx-glr-download-python
:download:`Download Python source code: bbox_intersect.py `
.. container:: sphx-glr-download sphx-glr-download-jupyter
:download:`Download Jupyter notebook: bbox_intersect.ipynb `
.. only:: html
.. rst-class:: sphx-glr-signature
Keywords: matplotlib code example, codex, python plot, pyplot
`Gallery generated by Sphinx-Gallery
`_