.. 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_axes_grid1_demo_axes_divider.py:
=================
Demo Axes Divider
=================
Axes divider to calculate location of axes and
create a divider for them using existing axes instances.
.. image:: /gallery/axes_grid1/images/sphx_glr_demo_axes_divider_001.png
:alt: demo axes divider
:class: sphx-glr-single-img
.. code-block:: default
from matplotlib import cbook
import matplotlib.pyplot as plt
def get_demo_image():
z = cbook.get_sample_data("axes_grid/bivariate_normal.npy", np_load=True)
# z is a numpy array of 15x15
return z, (-3, 4, -4, 3)
def demo_simple_image(ax):
Z, extent = get_demo_image()
im = ax.imshow(Z, extent=extent)
cb = plt.colorbar(im)
plt.setp(cb.ax.get_yticklabels(), visible=False)
def demo_locatable_axes_hard(fig):
from mpl_toolkits.axes_grid1 import SubplotDivider, Size
from mpl_toolkits.axes_grid1.mpl_axes import Axes
divider = SubplotDivider(fig, 2, 2, 2, aspect=True)
# axes for image
ax = Axes(fig, divider.get_position())
# axes for colorbar
ax_cb = Axes(fig, divider.get_position())
h = [Size.AxesX(ax), # main axes
Size.Fixed(0.05), # padding, 0.1 inch
Size.Fixed(0.2), # colorbar, 0.3 inch
]
v = [Size.AxesY(ax)]
divider.set_horizontal(h)
divider.set_vertical(v)
ax.set_axes_locator(divider.new_locator(nx=0, ny=0))
ax_cb.set_axes_locator(divider.new_locator(nx=2, ny=0))
fig.add_axes(ax)
fig.add_axes(ax_cb)
ax_cb.axis["left"].toggle(all=False)
ax_cb.axis["right"].toggle(ticks=True)
Z, extent = get_demo_image()
im = ax.imshow(Z, extent=extent)
plt.colorbar(im, cax=ax_cb)
plt.setp(ax_cb.get_yticklabels(), visible=False)
def demo_locatable_axes_easy(ax):
from mpl_toolkits.axes_grid1 import make_axes_locatable
divider = make_axes_locatable(ax)
ax_cb = divider.new_horizontal(size="5%", pad=0.05)
fig = ax.get_figure()
fig.add_axes(ax_cb)
Z, extent = get_demo_image()
im = ax.imshow(Z, extent=extent)
plt.colorbar(im, cax=ax_cb)
ax_cb.yaxis.tick_right()
ax_cb.yaxis.set_tick_params(labelright=False)
def demo_images_side_by_side(ax):
from mpl_toolkits.axes_grid1 import make_axes_locatable
divider = make_axes_locatable(ax)
Z, extent = get_demo_image()
ax2 = divider.new_horizontal(size="100%", pad=0.05)
fig1 = ax.get_figure()
fig1.add_axes(ax2)
ax.imshow(Z, extent=extent)
ax2.imshow(Z, extent=extent)
ax2.yaxis.set_tick_params(labelleft=False)
def demo():
fig = plt.figure(figsize=(6, 6))
# PLOT 1
# simple image & colorbar
ax = fig.add_subplot(2, 2, 1)
demo_simple_image(ax)
# PLOT 2
# image and colorbar whose location is adjusted in the drawing time.
# a hard way
demo_locatable_axes_hard(fig)
# PLOT 3
# image and colorbar whose location is adjusted in the drawing time.
# a easy way
ax = fig.add_subplot(2, 2, 3)
demo_locatable_axes_easy(ax)
# PLOT 4
# two images side by side with fixed padding.
ax = fig.add_subplot(2, 2, 4)
demo_images_side_by_side(ax)
plt.show()
demo()
.. _sphx_glr_download_gallery_axes_grid1_demo_axes_divider.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: demo_axes_divider.py `
.. container:: sphx-glr-download sphx-glr-download-jupyter
:download:`Download Jupyter notebook: demo_axes_divider.ipynb `
.. only:: html
.. rst-class:: sphx-glr-signature
Keywords: matplotlib code example, codex, python plot, pyplot
`Gallery generated by Sphinx-Gallery
`_