.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/slm_disk.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_slm_disk.py>`
        to download the full example code.

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

.. _sphx_glr_auto_examples_slm_disk.py:


SLM disk
=============
This script demonstrates how to create a circular geometry on an SLM
and superpose a gradient pattern on it.

.. GENERATED FROM PYTHON SOURCE LINES 7-33

.. code-block:: Python


    import cv2
    import numpy as np

    from openwfs.devices.slm import SLM, Patch, geometry
    from openwfs.utilities import patterns

    # construct a windowed-mode, square SLM window
    slm_size = (400, 400)
    slm = SLM(monitor_id=0, shape=slm_size)

    # for the first patch, use a circular geometry, where a 1-D texture is mapped
    # onto a set of concentric rings. Display a gradient pattern
    shape = geometry.circular(radii=(0, 0.4, 0.7, 1.0), segments_per_ring=(4, 6, 8))
    slm.patches[0].geometry = shape
    phases = np.random.uniform(low=0, high=30, size=(1, 18))
    slm.patches[0].set_phases(phases, update=False)

    # add a second patch that corresponds to a linear gradient
    gradient = patterns.tilt(slm_size, g=(10, 25), extent=(2, 2))
    slm.patches.append(Patch(slm))
    slm.patches[1].set_phases(gradient)

    # read back the pixels and store in a file
    pixels = slm.pixels.read()
    cv2.imwrite("slm_disk.png", pixels)


.. _sphx_glr_download_auto_examples_slm_disk.py:

.. only:: html

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

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

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

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

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

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

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


.. only:: html

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

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