.. only:: html

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

        Click :ref:`here <sphx_glr_download_auto_examples_webgl_multiple_datasets.py>`     to download the full example code
    .. rst-class:: sphx-glr-example-title

    .. _sphx_glr_auto_examples_webgl_multiple_datasets.py:


===============================================
Create a 3D WebGL Viewer with Multiple Datasets
===============================================

A webgl viewer displays a 3D view of brain data in a web browser

Multiple datasets can be loaded into the same viewer

The `priority` kwarg passed to Volume objects determines the display ordering

Lower values of `priority` are displayed first

In the browser you can switch between datasets with the + and - keys


.. code-block:: default


    import cortex

    import numpy as np
    np.random.seed(1234)

    # gather multiple datasets
    volume1 = cortex.Volume.random(subject='S1', xfmname='fullhead', priority=1)
    volume2 = cortex.Volume.random(subject='S1', xfmname='fullhead', priority=2)
    volume3 = cortex.Volume.random(subject='S1', xfmname='fullhead', priority=3)
    volumes = {
    	'First Dataset': volume1,
    	'Second Dataset': volume2,
    	'Third Dataset': volume3,
    }

    # create viewer
    cortex.webgl.show(data=volumes)

    # a port number will then be output, for example "Started server on port 39140"
    # the viewer can then be accessed in a web browser, in this case at "localhost:39140"


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

   **Total running time of the script:** ( 0 minutes  0.000 seconds)


.. _sphx_glr_download_auto_examples_webgl_multiple_datasets.py:


.. only :: html

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



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

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



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

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


.. only:: html

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

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