.. 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_subplots_axes_and_figures_zoom_inset_axes.py:
======================
Zoom region inset axes
======================
Example of an inset axes and a rectangle showing where the zoom is located.
.. code-block:: default
import matplotlib.pyplot as plt
import numpy as np
def get_demo_image():
from matplotlib.cbook import get_sample_data
import numpy as np
f = get_sample_data("axes_grid/bivariate_normal.npy", asfileobj=False)
z = np.load(f)
# z is a numpy array of 15x15
return z, (-3, 4, -4, 3)
fig, ax = plt.subplots(figsize=[5, 4])
# make data
Z, extent = get_demo_image()
Z2 = np.zeros([150, 150], dtype="d")
ny, nx = Z.shape
Z2[30:30 + ny, 30:30 + nx] = Z
ax.imshow(Z2, extent=extent, interpolation="nearest",
origin="lower")
# inset axes....
axins = ax.inset_axes([0.5, 0.5, 0.47, 0.47])
axins.imshow(Z2, extent=extent, interpolation="nearest",
origin="lower")
# sub region of the original image
x1, x2, y1, y2 = -1.5, -0.9, -2.5, -1.9
axins.set_xlim(x1, x2)
axins.set_ylim(y1, y2)
axins.set_xticklabels('')
axins.set_yticklabels('')
ax.indicate_inset_zoom(axins)
plt.show()
.. image:: /gallery/subplots_axes_and_figures/images/sphx_glr_zoom_inset_axes_001.png
:class: sphx-glr-single-img
------------
References
""""""""""
The use of the following functions and methods is shown in this example:
.. code-block:: default
import matplotlib
matplotlib.axes.Axes.inset_axes
matplotlib.axes.Axes.indicate_inset_zoom
matplotlib.axes.Axes.imshow
.. rst-class:: sphx-glr-script-out
Out:
.. code-block:: none
.. _sphx_glr_download_gallery_subplots_axes_and_figures_zoom_inset_axes.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: zoom_inset_axes.py `
.. container:: sphx-glr-download sphx-glr-download-jupyter
:download:`Download Jupyter notebook: zoom_inset_axes.ipynb `
.. only:: html
.. rst-class:: sphx-glr-signature
Keywords: matplotlib code example, codex, python plot, pyplot
`Gallery generated by Sphinx-Gallery
`_