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

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

.. _sphx_glr__gallery_feature_demo_line_segments.py:


Line Segments
=============

Display line segments. Can be useful e.g. for visializing vector fields.

.. GENERATED FROM PYTHON SOURCE LINES 7-41



.. image-sg:: /_gallery/feature_demo/images/sphx_glr_line_segments_001.webp
   :alt: line segments
   :srcset: /_gallery/feature_demo/images/sphx_glr_line_segments_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.WgpuRenderer(canvas)

    scene = gfx.Scene()

    x = np.linspace(20, 980, 200, dtype=np.float32)
    y = np.sin(x / 30) * 4

    positions = np.column_stack([x, y, np.zeros_like(x)])
    colors = np.random.uniform(0, 1, (x.size, 4)).astype(np.float32)
    colors[:, 3] = 1

    line = gfx.Points(
        gfx.Geometry(positions=positions, colors=colors),
        gfx.PointsMarkerMaterial(size=20, marker="pin", rotation_mode="curve"),
    )
    scene.add(line)

    camera = gfx.OrthographicCamera(maintain_aspect=False)
    camera.show_rect(0, 1000, -5, 5)

    controller = gfx.PanZoomController(camera, register_events=renderer)


    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 0.277 seconds)


.. _sphx_glr_download__gallery_feature_demo_line_segments.py:

.. only:: html

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

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

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

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

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

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

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