.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "_gallery/validation/validate_line_2d.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_2d.py>`
        to download the full example code.

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

.. _sphx_glr__gallery_validation_validate_line_2d.py:


Lines in 2D
===========

* This shows a 2D line in 3 flavours.
* It shows a gap due to nan values.
* It has duplicate points to test correct handling for that.
* It also puts a few points in quick succession to test that it staus a continuous line (with joins, no caps).
* It includes a point that only has its z-value different, which should behave like a duplicate point.

.. GENERATED FROM PYTHON SOURCE LINES 11-147



.. image-sg:: /_gallery/validation/images/sphx_glr_validate_line_2d_001.webp
   :alt: validate line 2d
   :srcset: /_gallery/validation/images/sphx_glr_validate_line_2d_001.webp
   :class: sphx-glr-single-img


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

 .. code-block:: none

    (34, 3)







|

.. code-block:: Python



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


    canvas = RenderCanvas(size=(1000, 1000))
    renderer = gfx.WgpuRenderer(canvas)

    positions = [
        # Cap
        [-1, 0, 0],
        # Some joins / corners
        [0, 1, 0],
        [1, -0.5, 0],
        [2, 0, 0],
        # nan and inf create gaps, should trigger when *any* field is nonfinite.
        # 4 gaps in total.
        [2.5, 0, 1],
        [np.nan, np.nan, np.nan],
        [3, 0, 1],
        [np.nan, 0, 1],
        [3.5, 0, 1],
        [3.75, np.inf, 1],
        [4.0, 0, 1],
        [4.25, 0, -np.inf],
        [4.5, 0, 1],
        [5, 0, 1],
        # A duplicate point
        [6, 1, 1],
        [7, 1, 1],
        [7, 1, 1],
        [8, 1, 1],
        # A triplicate point
        [9, 2, 1],
        [10, 2, 1],
        [10, 2, 1],
        [10, 2, 1],
        [11, 2, 1],
        # A bunch of points close together
        [12.0, 3, 1],
        [12.3, 3, 1],
        [12.4, 3, 1],
        [12.5, 3, 1],
        [12.6, 3, 1],
        [12.7, 3, 1],
        [13.0, 3, 1],
        # A seemingly duplicate point, but different in z
        [14, 4, 1],
        [15, 4, 1],
        [15, 4, 0],
        [16, 4, 0],
    ]
    colors = [
        [1, 0, 0],
        [1, 1, 0],
        [0, 1, 0],
        [0, 1, 1],
        [0, 0, 1],
        [1, 0, 1],
    ]

    positions = np.array(positions, np.float32)
    colors = np.tile(np.array(colors, np.float32), (len(positions) // 6 + 1, 1))
    colors = colors[: len(positions)]

    print(colors.shape)

    geometry = gfx.Geometry(positions=positions, colors=colors)

    line1 = gfx.Line(
        geometry,
        gfx.LineDebugMaterial(
            thickness=40,
            thickness_space="screen",
            color=(0.0, 1.0, 1.0),
            alpha_mode="blend",
            opacity=1.0,
            aa=True,
        ),
    )

    line2 = gfx.Line(
        geometry,
        gfx.LineMaterial(
            thickness=40,
            thickness_space="screen",
            color_mode="vertex",
            alpha_mode="blend",
            opacity=0.5,
            aa=True,
        ),
    )

    line3 = gfx.Line(
        geometry,
        gfx.LineMaterial(
            thickness=20,
            thickness_space="screen",
            color_mode="uniform",
            dash_pattern=[1, 1.2],
            color=(1.0, 0.0, 0.0),
            alpha_mode="blend",
            opacity=0.5,
            aa=True,
        ),
    )


    line1.local.position = 0, 4, 0
    line3.local.position = 0, -4, 0

    scene = gfx.Scene()
    scene.add(line1, line2, line3)


    camera = gfx.OrthographicCamera()
    camera.show_object(scene)

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


    def animate():
        renderer.render(scene, camera)
        for ob in scene.iter():
            if isinstance(ob, gfx.Line):
                if hasattr(ob.material, "dash_offset"):
                    ob.material.dash_offset += 0.1


    canvas.request_draw(animate)

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


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

   **Total running time of the script:** (0 minutes 1.043 seconds)


.. _sphx_glr_download__gallery_validation_validate_line_2d.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_2d.ipynb <validate_line_2d.ipynb>`

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

      :download:`Download Python source code: validate_line_2d.py <validate_line_2d.py>`

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

      :download:`Download zipped: validate_line_2d.zip <validate_line_2d.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_2d.py"></iframe>