.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "_gallery/feature_demo/cylinder.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_cylinder.py>`
        to download the full example code.

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

.. _sphx_glr__gallery_feature_demo_cylinder.py:


Types of Cylinders
==================

Example showing different types of geometric cylinders.

.. GENERATED FROM PYTHON SOURCE LINES 7-83



.. image-sg:: /_gallery/feature_demo/images/sphx_glr_cylinder_001.webp
   :alt: cylinder
   :srcset: /_gallery/feature_demo/images/sphx_glr_cylinder_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python



    import numpy as np
    from rendercanvas.auto import RenderCanvas, loop
    import pygfx as gfx


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

    cylinders = [
        ((0, 0, -32.5), (0, 0.65, 0, 1), gfx.cylinder_geometry(10, 10, height=25)),
        (
            (30, 0, 25),
            (1, 0.3, 0.3, 1),
            gfx.cylinder_geometry(
                10,
                10,
                height=12,
                theta_start=np.pi * 1.3,
                theta_length=np.pi * 1.5,
                open_ended=True,
            ),
        ),
        (
            (-50, 0, 0),
            (0, 0, 0.65, 1),
            gfx.cylinder_geometry(
                20, 12, radial_segments=3, height_segments=4, height=10, open_ended=True
            ),
        ),
        ((50, 0, -10), (1, 1, 0.75, 1), gfx.cylinder_geometry(1.5, 1.5, height=20)),
        ((50, 0, 5), (1, 1, 0.75, 1), gfx.cylinder_geometry(4, 0.0, height=10)),
    ]
    for pos, color, geometry in cylinders:
        material = gfx.MeshPhongMaterial(color=color)
        wobject = gfx.Mesh(geometry, material)
        wobject.local.position = pos
        scene.add(wobject)

        material = gfx.MeshNormalLinesMaterial(color=color)
        wobject = gfx.Mesh(geometry, material)
        wobject.local.position = pos
        wobject.cast_shadow = True
        scene.add(wobject)

    camera = gfx.PerspectiveCamera(70, 16 / 9)
    camera.local.position = (50, 50, 50)
    camera.show_pos((0, 0, 0))
    controller = gfx.OrbitController(camera, register_events=renderer)

    scene.add(gfx.AmbientLight())
    light = gfx.PointLight()
    light.local.position = (0, 70, 0)
    light.add(gfx.PointLightHelper())
    light.cast_shadow = True
    # since we are shadow mapping open meshes
    # disable front face culling to render backfaces to shadow maps
    # and set bias to avoid shadow acne
    light.shadow.cull_mode = "none"
    light.shadow.bias = 0.00001
    scene.add(light)

    ground = gfx.Mesh(
        gfx.box_geometry(1000, 1, 1000),
        gfx.MeshPhongMaterial(),
    )
    ground.local.y = -40
    ground.receive_shadow = True
    scene.add(ground)


    if __name__ == "__main__":
        canvas.request_draw(lambda: renderer.render(scene, camera))
        loop.run()


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

   **Total running time of the script:** (0 minutes 0.803 seconds)


.. _sphx_glr_download__gallery_feature_demo_cylinder.py:

.. only:: html

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

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

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

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

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

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

      :download:`Download zipped: cylinder.zip <cylinder.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#cylinder.py"></iframe>