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Styling
-------
Use the ``graph_attr``, ``node_attr``, and ``edge_attr`` arguments
of the :class:`.Graph` and :class:`.Digraph` constructors to change
the default `attributes <DOT attrs_>`_ for your graph, nodes, and edges.
.. doctest::
>>> import graphviz # doctest: +NO_EXE
>>> ps = graphviz.Digraph('pet-shop', node_attr={'shape': 'plaintext'})
>>> ps.node('parrot')
>>> ps.node('dead')
>>> ps.edge('parrot', 'dead')
After creation, the :attr:`~.Graph.graph_attr`, :attr:`~.Graph.node_attr`, and
:attr:`~.Graph.edge_attr` attributes be edited on instances:
.. doctest::
>>> ps.graph_attr['rankdir'] = 'LR' # doctest: +NO_EXE
>>> ps.edge_attr.update(arrowhead='vee', arrowsize='2')
>>> print(ps.source) # doctest: +NORMALIZE_WHITESPACE
digraph "pet-shop" {
graph [rankdir=LR]
node [shape=plaintext]
edge [arrowhead=vee arrowsize=2]
parrot
dead
parrot -> dead
}
.. image:: _static/pet-shop.svg
:align: center
.. include:: _links.rst
|
