.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/plot_colourmap_pitfalls.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_auto_examples_plot_colourmap_pitfalls.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_plot_colourmap_pitfalls.py:


==================
Colormap pitfalls.
==================

Choosing the right colormap is important. A bad colormap like ``jet``
(standard in ROOT and matplotlib < 2.0) fools you into seeing structure
where there isn't any.

.. GENERATED FROM PYTHON SOURCE LINES 12-32



.. image-sg:: /auto_examples/images/sphx_glr_plot_colourmap_pitfalls_001.png
   :alt: gray, jet, cubehelix, cividis
   :srcset: /auto_examples/images/sphx_glr_plot_colourmap_pitfalls_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    import numpy as np
    import matplotlib.pyplot as plt
    from mpl_toolkits.axes_grid1 import make_axes_locatable
    import km3pipe.style

    km3pipe.style.use("km3pipe")

    x = np.linspace(-np.pi, np.pi, 300)
    xx, yy = np.meshgrid(x, x)
    z = np.cos(xx) + np.cos(yy)

    fig, axes = plt.subplots(2, 2)

    for ax, colourmap in zip(axes.flatten(), ["gray", "jet", "cubehelix", "cividis"]):
        ax.set_title(colourmap)
        im = ax.imshow(z, cmap=plt.get_cmap(colourmap))
        divider = make_axes_locatable(ax)
        cax = divider.append_axes("right", size="7%", pad=0.05)
        cbar = plt.colorbar(im, cax=cax)


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.303 seconds)


.. _sphx_glr_download_auto_examples_plot_colourmap_pitfalls.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: plot_colourmap_pitfalls.ipynb <plot_colourmap_pitfalls.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: plot_colourmap_pitfalls.py <plot_colourmap_pitfalls.py>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_