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

.. only:: html

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

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

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

.. _sphx_glr_gallery_scene_image.py:


Display an Image
================

Simple use of SceneCanvas to display an Image.

.. GENERATED FROM PYTHON SOURCE LINES 14-67



.. image-sg:: /gallery/scene/images/sphx_glr_image_001.png
   :alt: image
   :srcset: /gallery/scene/images/sphx_glr_image_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    import sys
    from vispy import scene
    from vispy import app
    from vispy.io import load_data_file, read_png

    canvas = scene.SceneCanvas(keys='interactive')
    canvas.size = 800, 600
    canvas.show()

    # Set up a viewbox to display the image with interactive pan/zoom
    view = canvas.central_widget.add_view()

    # Create the image
    img_data = read_png(load_data_file('mona_lisa/mona_lisa_sm.png'))
    interpolation = 'nearest'

    image = scene.visuals.Image(img_data, interpolation=interpolation,
                                parent=view.scene, method='subdivide')

    canvas.title = 'Spatial Filtering using %s Filter' % interpolation

    # Set 2D camera (the camera will scale to the contents in the scene)
    view.camera = scene.PanZoomCamera(aspect=1)
    # flip y-axis to have correct aligment
    view.camera.flip = (0, 1, 0)
    view.camera.set_range()
    view.camera.zoom(0.1, (250, 200))

    # get interpolation functions from Image
    names = image.interpolation_functions
    names = sorted(names)
    act = 17


    # Implement key presses
    @canvas.events.key_press.connect
    def on_key_press(event):
        global act
        if event.key in ['Left', 'Right']:
            if event.key == 'Right':
                step = 1
            else:
                step = -1
            act = (act + step) % len(names)
            interpolation = names[act]
            image.interpolation = interpolation
            canvas.title = 'Spatial Filtering using %s Filter' % interpolation
            canvas.update()


    if __name__ == '__main__' and sys.flags.interactive == 0:
        app.run()


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

   **Total running time of the script:** (0 minutes 0.670 seconds)


.. _sphx_glr_download_gallery_scene_image.py:

.. only:: html

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

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

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

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

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


.. only:: html

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

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