.. 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

        Click :ref:`here <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``.

Everytime, 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 14-18

.. code-block:: default

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








.. GENERATED FROM PYTHON SOURCE LINES 20-21

Function for the image acquisition.

.. GENERATED FROM PYTHON SOURCE LINES 21-38

.. code-block:: default



    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 39-40

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

.. GENERATED FROM PYTHON SOURCE LINES 40-48

.. code-block:: default



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








.. GENERATED FROM PYTHON SOURCE LINES 49-50

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

.. GENERATED FROM PYTHON SOURCE LINES 50-57

.. code-block:: default



    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  0.015 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-python

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

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

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