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

.. only:: html

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

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

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

.. _sphx_glr__gallery_feature_demo_picking_color.py:


Color Picking
=============

Example showing picking the color from the scene. Depending on the
object being clicked, more detailed picking info is available.

.. GENERATED FROM PYTHON SOURCE LINES 8-57



.. image-sg:: /_gallery/feature_demo/images/sphx_glr_picking_color_001.webp
   :alt: picking color
   :srcset: /_gallery/feature_demo/images/sphx_glr_picking_color_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python



    import numpy as np
    import imageio.v3 as iio
    from rendercanvas.auto import RenderCanvas, loop
    import pygfx as gfx
    import pylinalg as la


    canvas = RenderCanvas()
    renderer = gfx.renderers.WgpuRenderer(canvas)
    scene = gfx.Scene()

    dark_gray = np.array((169, 167, 168, 255)) / 255
    light_gray = np.array((100, 100, 100, 255)) / 255
    background = gfx.Background.from_color(light_gray, dark_gray)
    scene.add(background)

    im = iio.imread("imageio:astronaut.png").astype(np.float32) / 255
    tex = gfx.Texture(im, dim=2)

    geometry = gfx.box_geometry(200, 200, 200)
    material = gfx.MeshBasicMaterial(map=tex, pick_write=True)
    cube = gfx.Mesh(geometry, material)
    scene.add(cube)

    # camera = gfx.OrthographicCamera(300, 300)
    camera = gfx.PerspectiveCamera(70, 16 / 9)
    camera.show_object(cube, scale=1.5)


    @renderer.add_event_handler("pointer_down")
    def handle_event(event):
        info = event.pick_info
        for key, val in info.items():
            print(key, "=", val)


    def animate():
        rot = la.quat_from_euler((0.005, 0.01), order="XY")
        cube.local.rotation = la.quat_mul(rot, cube.local.rotation)

        renderer.render(scene, camera)
        canvas.request_draw()


    if __name__ == "__main__":
        canvas.request_draw(animate)
        loop.run()


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

   **Total running time of the script:** (0 minutes 0.399 seconds)


.. _sphx_glr_download__gallery_feature_demo_picking_color.py:

.. only:: html

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

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

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

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

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

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

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


.. only:: html

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

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

.. only:: html

    Interactive example
    -------------------

    Try this example in your browser using Pyodide. Might not work with all examples and all devices. Check the output and your browser's console for details.

    .. raw:: html

        <iframe src="./../pyodide.html#picking_color.py"></iframe>