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

.. only:: html

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

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

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

.. _sphx_glr_gallery_scene_point_cloud.py:


Create a Point Cloud
====================

Demonstrates use of visual.Markers to create a point cloud with a
standard turntable camera to fly around with and a centered 3D Axis.

.. GENERATED FROM PYTHON SOURCE LINES 13-53



.. image-sg:: /gallery/scene/images/sphx_glr_point_cloud_001.png
   :alt: point cloud
   :srcset: /gallery/scene/images/sphx_glr_point_cloud_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    import numpy as np
    import vispy.scene
    from vispy.scene import visuals

    #
    # Make a canvas and add simple view
    #
    canvas = vispy.scene.SceneCanvas(keys='interactive', show=True)
    view = canvas.central_widget.add_view()


    # generate data
    pos = np.random.normal(size=(100000, 3), scale=0.2)
    # one could stop here for the data generation, the rest is just to make the
    # data look more interesting. Copied over from magnify.py
    centers = np.random.normal(size=(50, 3))
    indexes = np.random.normal(size=100000, loc=centers.shape[0] / 2,
                               scale=centers.shape[0] / 3)
    indexes = np.clip(indexes, 0, centers.shape[0] - 1).astype(int)
    symbols = np.random.choice(['o', '^'], len(pos))
    scales = 10**(np.linspace(-2, 0.5, centers.shape[0]))[indexes][:, np.newaxis]
    pos *= scales
    pos += centers[indexes]

    # create scatter object and fill in the data
    scatter = visuals.Markers()
    scatter.set_data(pos, edge_width=0, face_color=(1, 1, 1, .5), size=5, symbol=symbols)

    view.add(scatter)

    view.camera = 'turntable'  # or try 'arcball'

    # add a colored 3D axis for orientation
    axis = visuals.XYZAxis(parent=view.scene)

    if __name__ == '__main__':
        import sys
        if sys.flags.interactive != 1:
            vispy.app.run()


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

   **Total running time of the script:** (0 minutes 1.523 seconds)


.. _sphx_glr_download_gallery_scene_point_cloud.py:

.. only:: html

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

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

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

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

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

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

      :download:`Download zipped: point_cloud.zip <point_cloud.zip>`


.. only:: html

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

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