networkx.drawing.nx_pydot.pydot_layout¶

pydot_layout(G, prog='neato', root=None, **kwds)[source]¶

Create node positions using pydot and Graphviz.

Parameters:	G (Graph) – NetworkX graph to be laid out. prog (optional[str]) – Basename of the GraphViz command with which to layout this graph. Defaults to `neato`: default GraphViz command for undirected graphs.
Returns:	Dictionary of positions keyed by node.
Return type:	dict

Examples

>>> G = nx.complete_graph(4)
>>> pos = nx.nx_pydot.pydot_layout(G)
>>> pos = nx.nx_pydot.pydot_layout(G, prog='dot')

Notes

If you use complex node objects, they may have the same string representation and GraphViz could treat them as the same node. The layout may assign both nodes a single location. See Issue #1568 If this occurs in your case, consider relabeling the nodes just for the layout computation using something similar to:

H = nx.convert_node_labels_to_integers(G, label_attribute=’node_label’) H_layout = nx.nx_pydot.pydot_layout(G, prog=’dot’) G_layout = {H.nodes[n][‘node_label’]: p for n, p in H_layout.items()}