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

.. only:: html

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

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

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

.. _sphx_glr__gallery_validation_validate_line_inf.py:


Infinite line segments
======================

Display infinite line segments.

.. GENERATED FROM PYTHON SOURCE LINES 7-84



.. image-sg:: /_gallery/validation/images/sphx_glr_validate_line_inf_001.webp
   :alt: validate line inf
   :srcset: /_gallery/validation/images/sphx_glr_validate_line_inf_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()

    # Create an even number of positions in a circle
    t = np.linspace(0, 2 * np.pi, 22, endpoint=False, dtype=np.float32)
    x = np.sin(t) * 4
    y = np.cos(t) * 4
    positions1 = np.column_stack([x, y, np.zeros_like(x)])

    # More positions
    positions2 = np.array(
        [
            [-3, 0, 1],  # Two points in the same position stay a single point
            [-3, 0, 1],
            [-2, -100, 1],  # A vertical line, below viewport
            [-2, -101, 1],
            [-1, -101, 1],  # A vertical line, dito
            [-1, -100, 1],
            [0, 101, 1],  # A vertical line, above viewport
            [0, 100, 1],
            [1, 100, 1],  # A vertical line
            [1, 101, 1],
            [2, 3.01, 1],  # A shot line
            [2, 3.00, 1],
            [3, 3.00, 1],  # A shot line
            [3, 3.01, 1],
        ],
        np.float32,
    )


    # Assign color to the different line segments
    colors1 = np.zeros_like(positions1)
    colors1[:, 0] = 1
    colors1[:, 1] = np.linspace(0, 1, len(colors1))

    colors2 = np.ones_like(positions2)
    colors2[2::2, :] = 0, 0, 1

    line1 = gfx.Line(
        gfx.Geometry(positions=positions1, colors=colors1),
        gfx.LineInfiniteSegmentMaterial(
            thickness=5.0,
            color_mode="face",
            start_is_infinite=False,
            dash_pattern=[0, 2],
            aa=True,
        ),
    )
    scene.add(line1)

    line2 = gfx.Line(
        gfx.Geometry(positions=positions2, colors=colors2),
        gfx.LineInfiniteSegmentMaterial(
            thickness=10, end_is_infinite=1, color_mode="vertex", aa=True
        ),
    )
    scene.add(line2)

    camera = gfx.OrthographicCamera(12, 12, maintain_aspect=True)
    controller = gfx.PanZoomController(camera, register_events=renderer)

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


    if __name__ == "__main__":
        print(__doc__)
        loop.run()


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

   **Total running time of the script:** (0 minutes 0.557 seconds)


.. _sphx_glr_download__gallery_validation_validate_line_inf.py:

.. only:: html

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

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

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

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

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

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

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