.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "11_demos\itom\basics\demo_timerExample.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_11_demos_itom_basics_demo_timerExample.py>`
        to download the full example code.

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

.. _sphx_glr_11_demos_itom_basics_demo_timerExample.py:

Timer
===========

This script creates an instance of a ``DummyGrabber``
and implements a timer with an interval of ``1000ms``.

Every time, the interval is expired the method ``imageAcquisition``
is called. It acquires a new image an appends it to the global
list ``myImages``.

To stop the timer, call the method ``cancel``. Additionally, the timer
is automatically interrupted after ``10`` iterations.

.. GENERATED FROM PYTHON SOURCE LINES 14-19

.. code-block:: Python


    from itom import timer
    from itom import dataIO
    from itom import dataObject








.. GENERATED FROM PYTHON SOURCE LINES 21-22

Function for the image acquisition.

.. GENERATED FROM PYTHON SOURCE LINES 22-40

.. code-block:: Python



    def imageAcquisition():
        global iters
        global t
        global cam
        global myImages

        print("acquire next image")
        cam.acquire()
        d = dataObject()
        cam.getVal(d)
        globals()["myImages"].append(d.copy())
        iters += 1
        if iters >= 10:
            t.stop()









.. GENERATED FROM PYTHON SOURCE LINES 41-42

Call this method (e.g. by your gui) to stop the timer.

.. GENERATED FROM PYTHON SOURCE LINES 42-51

.. code-block:: Python



    def cancel():
        global t
        global cam
        t.stop()
        cam.stopDevice()









.. GENERATED FROM PYTHON SOURCE LINES 52-53

Define a ``DummyGrabber`` camera and timer for a timed acquisition.

.. GENERATED FROM PYTHON SOURCE LINES 53-60

.. code-block:: Python



    cam = dataIO("DummyGrabber")
    myImages = []
    iters = 0
    cam.startDevice()
    t = timer(1000, imageAcquisition)








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

   **Total running time of the script:** (0 minutes 0.040 seconds)


.. _sphx_glr_download_11_demos_itom_basics_demo_timerExample.py:

.. only:: html

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

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

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

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

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

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

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