.. _`Dask visualize example`:

.. _`org.sysess.sympathy.examples.daskvisualize`:

Dask visualize example
~~~~~~~~~~~~~~~~~~~~~~

.. image:: example.svg
   :width: 48


This example shows how to visualize a dask column graph as a image file
written to disk.

Output file format is selected by typing the desired file extension.
.svg and .png are supported.

This example requires `Graphviz <https://www.graphviz.org>`__
to be installed and configured. Additionally the
`graphviz <https://pypi.org/project/graphviz>`__ python package is also
required, it can be installed by running::

    python -m pip install graphviz

in the python environment that is used to run Sympathy.

*Input ports*:
    :input_table: table

        Input Table

*Output ports*:
    :output_datasource: datasource

        Output Datasource

*Configuration*:
    **Column** (column)
        Column to visualize.
    **Filename** (filename)
        Manually enter a filename (use .svg extensions to get vector graphics)

.. automodule:: node_dask_examples

.. class:: DaskVisualize