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

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_tutorials_plot_layer.py>`
        to download the full example code. or to run this example in your browser via Binder

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

.. _sphx_glr_tutorials_plot_layer.py:


Plotting layers
===============

Vizualizing a layer pattern in 2D with matplotlib.

.. GENERATED FROM PYTHON SOURCE LINES 14-21

.. code-block:: Python




    import matplotlib.pyplot as plt

    import nannos as nn








.. GENERATED FROM PYTHON SOURCE LINES 23-24

Let's define our lattice:

.. GENERATED FROM PYTHON SOURCE LINES 24-36

.. code-block:: Python



    lat = nn.Lattice(basis_vectors=[[1, 0], [0, 1]], discretization=2**9)
    epsilon = 6 * lat.ones()
    hole = lat.circle(center=(0.5, 0.5), radius=0.2)
    epsilon[hole] = 1

    lay = lat.Layer(name="metasurface", thickness=0.2, epsilon=epsilon)
    lay.plot()
    plt.show()





.. image-sg:: /tutorials/images/sphx_glr_plot_layer_001.png
   :alt: plot layer
   :srcset: /tutorials/images/sphx_glr_plot_layer_001.png
   :class: sphx-glr-single-img





.. GENERATED FROM PYTHON SOURCE LINES 37-38

Another lattice with non orthogonal basis vectors:

.. GENERATED FROM PYTHON SOURCE LINES 38-52

.. code-block:: Python



    lat = nn.Lattice(basis_vectors=[[1, 0], [0.5, 0.5]], discretization=2**9)
    epsilon = lat.ones()
    scat = lat.ellipse(center=(0.75, 0.25), radii=(0.4, 0.1), rotate=15)
    epsilon[scat] = 3 - 1j

    lay = lat.Layer(name="grating", thickness=1.3, epsilon=epsilon)
    ims = lay.plot(nper=(3, 2), show_cell=True, cmap="Greens", comp="im", cellstyle="y--")
    plt.axis("off")
    plt.colorbar(ims[0], orientation="horizontal")
    plt.title(r"${\rm Im}\,\varepsilon$")
    plt.tight_layout()
    plt.show()



.. image-sg:: /tutorials/images/sphx_glr_plot_layer_002.png
   :alt: ${\rm Im}\,\varepsilon$
   :srcset: /tutorials/images/sphx_glr_plot_layer_002.png
   :class: sphx-glr-single-img






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

   **Total running time of the script:** (0 minutes 1.907 seconds)

**Estimated memory usage:**  519 MB


.. _sphx_glr_download_tutorials_plot_layer.py:

.. only:: html

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

    .. container:: binder-badge

      .. image:: images/binder_badge_logo.svg
        :target: https://mybinder.org/v2/gh/nannos/nannos.gitlab.io/doc?filepath=notebooks/tutorials/plot_layer.ipynb
        :alt: Launch binder
        :width: 150 px

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

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

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

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

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: plot_layer.zip <plot_layer.zip>`


.. only:: html

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

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