.. 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 :class: sphx-glr-single-img .. code-block:: python import matplotlib.pyplot as plt def get_demo_image(): import numpy as np from matplotlib.cbook import get_sample_data 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) def demo_simple_image(ax): Z, extent = get_demo_image() im = ax.imshow(Z, extent=extent, interpolation="nearest") cb = plt.colorbar(im) plt.setp(cb.ax.get_yticklabels(), visible=False) def demo_locatable_axes_hard(fig1): from mpl_toolkits.axes_grid1 \ import SubplotDivider, LocatableAxes, Size divider = SubplotDivider(fig1, 2, 2, 2, aspect=True) # axes for image ax = LocatableAxes(fig1, divider.get_position()) # axes for colorbar ax_cb = LocatableAxes(fig1, 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)) fig1.add_axes(ax) fig1.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, interpolation="nearest") 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) fig1 = ax.get_figure() fig1.add_axes(ax_cb) Z, extent = get_demo_image() im = ax.imshow(Z, extent=extent, interpolation="nearest") 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, interpolation="nearest") ax2.imshow(Z, extent=extent, interpolation="nearest") ax2.yaxis.set_tick_params(labelleft=False) def demo(): fig1 = plt.figure(1, (6, 6)) fig1.clf() # PLOT 1 # simple image & colorbar ax = fig1.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(fig1) # PLOT 3 # image and colorbar whose location is adjusted in the drawing time. # a easy way ax = fig1.add_subplot(2, 2, 3) demo_locatable_axes_easy(ax) # PLOT 4 # two images side by side with fixed padding. ax = fig1.add_subplot(2, 2, 4) demo_images_side_by_side(ax) plt.draw() 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 :download:`Download Python source code: demo_axes_divider.py ` .. container:: sphx-glr-download :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 `_