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

.. only:: html

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

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

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

.. _sphx_glr_classes_base_classes_data_plot_image.py:


=====
Image
=====

Image on a regular two-dimensional grid.

The x-axis and y-axis define a regular 2D grid. The grid is equally spaced in
this example but this is not necessarily the case.

.. code::

  @NX_class = "NXroot"
  @default = "scan1"
  scan1:
    @NX_class = "NXentry"
    @default = "data"
    data:
      @NX_class = "NXdata"
      @axes = ["y", "x"]
      @signal = "z"
      x: NX_FLOAT64[16]
      y: NX_FLOAT64[30]
      z: NX_FLOAT64[30,16]

Explanation:

1. ``@axes`` has two values which corresponds to the signal rank of two.

2. ``z`` is the default signal to be plotted versus ``x`` and ``y``.

3. ``z`` has 30 rows and 16 columns.

4. ``y`` spans the first dimension of ``z`` and ``x`` the second.

.. GENERATED FROM PYTHON SOURCE LINES 36-56



.. image-sg:: /classes/base_classes/data/images/sphx_glr_plot_image_001.png
   :alt: plot image
   :srcset: /classes/base_classes/data/images/sphx_glr_plot_image_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    # Data
    import numpy as np

    x = np.linspace(-3, 3, 16)
    y = np.linspace(-3, 3, 30)

    xx, yy = np.meshgrid(x, y)
    z = (1 - xx / 2 + xx**5 + yy**3) * np.exp(-(xx**2) - yy**2)

    # Plot
    import matplotlib.pyplot as plt  # noqa E402

    plt.style.use("_mpl-gallery-nogrid")

    fig, ax = plt.subplots()

    ax.imshow(z, extent=[x[0], x[-1], y[0], y[-1]], origin="lower")

    plt.show()


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

   **Total running time of the script:** (0 minutes 0.033 seconds)


.. _sphx_glr_download_classes_base_classes_data_plot_image.py:

.. only:: html

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

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

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

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

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

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

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