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

.. only:: html

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

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

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

.. _sphx_glr__gallery_mesh_image_surface.py:


Image surface
=============

Example showing an image as a surface.

.. GENERATED FROM PYTHON SOURCE LINES 7-37



.. image-sg:: /_gallery/mesh/images/sphx_glr_image_surface_001.webp
   :alt: image surface
   :srcset: /_gallery/mesh/images/sphx_glr_image_surface_001.webp
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    /opt/hostedtoolcache/Python/3.12.12/x64/lib/python3.12/site-packages/pygfx/objects/_ruler.py:400: RuntimeWarning: divide by zero encountered in divide
      screen_full = (ndc_full[:, :2] / ndc_full[:, 3:4]) * half_canvas_size
    /opt/hostedtoolcache/Python/3.12.12/x64/lib/python3.12/site-packages/pygfx/objects/_ruler.py:400: RuntimeWarning: invalid value encountered in divide
      screen_full = (ndc_full[:, :2] / ndc_full[:, 3:4]) * half_canvas_size
    /opt/hostedtoolcache/Python/3.12.12/x64/lib/python3.12/site-packages/pygfx/objects/_ruler.py:412: RuntimeWarning: invalid value encountered in divide
      screen_sel = (ndc_sel[:, :2] / ndc_sel[:, 3:4]) * half_canvas_size
    /home/runner/work/fastplotlib/fastplotlib/fastplotlib/graphics/features/_base.py:18: UserWarning: casting float64 array to float32
      warn(f"casting {array.dtype} array to float32")







|

.. code-block:: Python


    # test_example = true

    import imageio.v3 as iio
    import fastplotlib as fpl
    import scipy.ndimage

    im = iio.imread("imageio:astronaut.png")

    figure = fpl.Figure(size=(700, 560), cameras="3d", controller_types="orbit")


    # Create the height map from the image
    z = im.mean(axis=2)
    z = scipy.ndimage.gaussian_filter(z, 5)  # 2nd arg is sigma

    mesh = figure[0, 0].add_surface(z, cmap=im)
    mesh.world_object.local.scale_y = -1


    figure[0, 0].axes.grids.xy.visible = True
    figure[0, 0].camera.show_object(mesh.world_object, (1, 2, -1), up=(0, 0, 1))
    figure.show()


    # NOTE: fpl.loop.run() should not be used for interactive sessions
    # See the "JupyterLab and IPython" section in the user guide
    if __name__ == "__main__":
        print(__doc__)
        fpl.loop.run()


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

   **Total running time of the script:** (0 minutes 1.347 seconds)


.. _sphx_glr_download__gallery_mesh_image_surface.py:

.. only:: html

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

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

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

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

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


.. only:: html

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

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