.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "11_demos\itom\plots\demoPickPointsAndMarkers.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_plots_demoPickPointsAndMarkers.py>`
        to download the full example code.

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

.. _sphx_glr_11_demos_itom_plots_demoPickPointsAndMarkers.py:

Pick points and markers
==========================

This demo shows how you can pick points and markers in the ``itom`` plot.

.. GENERATED FROM PYTHON SOURCE LINES 5-10

.. code-block:: Python


    from itom import dataObject
    from itom import plot2
    from itom import plotItem


.. GENERATED FROM PYTHON SOURCE LINES 12-15

**Pick Points demo**

Create a random 2 dimensional ``dataObject`` and plot it.

.. GENERATED FROM PYTHON SOURCE LINES 15-20

.. code-block:: Python

    obj = dataObject.randN([1024, 1024], "int16")

    [nr, h] = plot2(obj)
    h["title"] = "Showcase: pick marker"


.. GENERATED FROM PYTHON SOURCE LINES 21-23

.. image:: ../../_static/demoPickPointsAndMarkers_1.png
   :width: 100%

.. GENERATED FROM PYTHON SOURCE LINES 25-26

This command let the user pick maximum 4 points (earlier break with space, esc aborts the selection).

.. GENERATED FROM PYTHON SOURCE LINES 26-33

.. code-block:: Python

    pickedPoints = dataObject()
    h.pickPoints(pickedPoints, 4)

    print("coordinates of selected points: ")
    for numPoint in range(pickedPoints.shape[1]):
        print(f"x: {pickedPoints[0, numPoint]}, y: {pickedPoints[1, numPoint]}")


.. GENERATED FROM PYTHON SOURCE LINES 34-46

Plot the ``dataObject`` again together with the previously selected points as ``marker``.

The second argument of ``plotMarkers`` is a style-string (this may change) ``[color, symbol, size]``:

+----------+------------------------------------------+
| color    | \{b, g, r, c, m, y, k, w\}               |
+----------+------------------------------------------+
| symbol   | \{., o, s, d, >, v, ^, <, x, `*`, +, h\} |
+----------+------------------------------------------+
| size     | any integer number                       |
+----------+------------------------------------------+


.. GENERATED FROM PYTHON SOURCE LINES 46-53

.. code-block:: Python

    markers = dataObject([2, 3], "float32", data=[10.1, 20.2, 30.3, 7, 100, 500])
    [nr, h] = plot2(obj)
    h["title"] = "Showcase: plot the currently selected points"
    h.call(
        "plotMarkers", pickedPoints, "b+10", "setName"
    )  # 'setName' is the name for this set of markers (optional)


.. GENERATED FROM PYTHON SOURCE LINES 54-56

.. image:: ../../_static/demoPickPointsAndMarkers_2.png
   :width: 100%

.. GENERATED FROM PYTHON SOURCE LINES 58-59

Delete marker set

.. GENERATED FROM PYTHON SOURCE LINES 59-62

.. code-block:: Python

    h.call("deleteMarkers", "setName")  # deletes given set
    h.call("deleteMarkers", "")  # deletes all sets


.. GENERATED FROM PYTHON SOURCE LINES 63-66

**Paint geometric shapes**

Create a random 2 dimensional ``dataObject`` and plot it.

.. GENERATED FROM PYTHON SOURCE LINES 66-70

.. code-block:: Python

    obj = dataObject.randN([1024, 1024], "int16")
    [nr, h] = plot2(obj)
    h["title"] = "Showcase: paint 4 ellipses"


.. GENERATED FROM PYTHON SOURCE LINES 71-72

This command let the user pick maximum 4 points (earlier break with space, esc aborts the selection).

.. GENERATED FROM PYTHON SOURCE LINES 72-78

.. code-block:: Python

    geometricShapes = h.drawAndPickElements(plotItem.PrimitiveEllipse, 4)

    print("selected shapes:")
    for shape in geometricShapes:
        print(shape)


.. GENERATED FROM PYTHON SOURCE LINES 79-80

Plot the ``dataObject`` again together with the previously painted ellipses ``geometricShapes``.

.. GENERATED FROM PYTHON SOURCE LINES 80-87

.. code-block:: Python

    [nr, hDrawInto] = plot2(obj)
    hDrawInto["title"] = "Showcase: plot painted ellipses"
    hDrawInto.call(
        "setGeometricShapes", geometricShapes
    )  # "b" and "setname" will be ignored anyway
    shapes = hDrawInto["geometricShapes"]


.. GENERATED FROM PYTHON SOURCE LINES 88-90

.. image:: ../../_static/demoPickPointsAndMarkers_3.png
   :width: 100%


.. _sphx_glr_download_11_demos_itom_plots_demoPickPointsAndMarkers.py:

.. only:: html

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

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

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

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

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

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

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