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

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

.. _sphx_glr__gallery_feature_demo_line_basic.py:


Line Drawing
============


Some basic line drawing.

.. GENERATED FROM PYTHON SOURCE LINES 8-51



.. image-sg:: /_gallery/feature_demo/images/sphx_glr_line_basic_001.png
   :alt: line basic
   :srcset: /_gallery/feature_demo/images/sphx_glr_line_basic_001.png
   :class: sphx-glr-single-img





.. code-block:: default


    import numpy as np
    from wgpu.gui.auto import WgpuCanvas, run
    import pygfx as gfx


    canvas = WgpuCanvas()
    renderer = gfx.WgpuRenderer(canvas)
    renderer_svg = gfx.SvgRenderer(640, 480, "~/line.svg")

    scene = gfx.Scene()
    positions = [[200 + np.sin(i) * i * 6, 200 + np.cos(i) * i * 6, 0] for i in range(20)]
    positions += [[np.nan, np.nan, np.nan]]
    positions += [[400 - np.sin(i) * i * 6, 200 + np.cos(i) * i * 6, 0] for i in range(20)]
    positions += [[np.nan, np.nan, np.nan]]
    positions += [
        [450, 400, 0],
        [375, 400, 0],
        [300, 400, 0],
        [400, 370, 0],
        [300, 340, 0],
    ]

    # Spiral away in z (to make the depth buffer less boring)
    for i in range(len(positions)):
        positions[i][2] = i

    line = gfx.Line(
        gfx.Geometry(positions=positions),
        gfx.LineMaterial(thickness=12.0, color=(0.8, 0.7, 0.0)),
    )
    scene.add(line)

    camera = gfx.OrthographicCamera(600, 500)
    camera.local.position = (300, 250, 0)

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


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


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

   **Total running time of the script:** (0 minutes 0.214 seconds)


.. _sphx_glr_download__gallery_feature_demo_line_basic.py:

.. only:: html

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




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

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

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

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


.. only:: html

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

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