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

.. only:: html

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

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

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

.. _sphx_glr_examples_reference_frames_plot_projection_center_on_detector.py:


Plot projection center on the detector
======================================

This example shows how to plot the projection/pattern center (PC) on an
:class:`~kikuchipy.detectors.EBSDDetector`.
See the detector class documentation for further details on the definition of the PC and
gnomonic coordinates.

.. GENERATED FROM PYTHON SOURCE LINES 31-32

Imports.

.. GENERATED FROM PYTHON SOURCE LINES 32-36

.. code-block:: Python

    import matplotlib.pyplot as plt

    import kikuchipy as kp








.. GENERATED FROM PYTHON SOURCE LINES 37-40

Create an EBSD detector with a binning of 8 and a single projection/pattern (PC)
center given in EDAX' definition,
:math:`(x^{*}, y^{*}, z^{*}) = (0.421, 0.779, 0.505)`.

.. GENERATED FROM PYTHON SOURCE LINES 40-51

.. code-block:: Python

    det = kp.detectors.EBSDDetector(
        shape=(60, 60),
        pc=[0.421, 0.779, 0.505],
        convention="edax",
        px_size=70,  # Microns
        tilt=5,  # Degrees
        sample_tilt=70,  # Degrees
        binning=8,
    )
    print(det)





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    EBSDDetector
      shape (Ny, Nx):     (60, 60)
      pc (PCx, PCy, PCz): (0.421, 0.221, 0.505)
      sample_tilt:        70.0°
      tilt:               5.0°
      azimuthal:          0.0°
      twist:              0.0°
      binning:            8
      px_size:            70.0 um




.. GENERATED FROM PYTHON SOURCE LINES 52-53

Load a small test dataset with (60, 60) patterns to plot the PC over.

.. GENERATED FROM PYTHON SOURCE LINES 53-56

.. code-block:: Python

    s = kp.data.nickel_ebsd_small()
    print(s)





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    <EBSD, title: patterns Scan 1, dimensions: (3, 3|60, 60)>




.. GENERATED FROM PYTHON SOURCE LINES 57-61

Plot the PC on top of the pattern.
Instead of pixels, we show the detector extent in gnomonic coordinates along the x
and y axes.
We also draw gnomonic circles at an interval of :math:`10^{\circ}`.

.. GENERATED FROM PYTHON SOURCE LINES 61-68

.. code-block:: Python

    det.plot(
        pattern=s.inav[0, 0].data,
        coordinates="gnomonic",
        draw_gnomonic_circles=True,
    )

    plt.show()



.. image-sg:: /examples/reference_frames/images/sphx_glr_plot_projection_center_on_detector_001.png
   :alt: plot projection center on detector
   :srcset: /examples/reference_frames/images/sphx_glr_plot_projection_center_on_detector_001.png
   :class: sphx-glr-single-img






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

   **Total running time of the script:** (0 minutes 1.869 seconds)

**Estimated memory usage:**  790 MB


.. _sphx_glr_download_examples_reference_frames_plot_projection_center_on_detector.py:

.. only:: html

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

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

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

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

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

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

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


.. only:: html

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

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