shell_layout¶
- shell_layout(G, nlist=None, rotate=None, scale=1, center=None, dim=2)[source]¶
Position nodes in concentric circles.
- Parameters
- GNetworkX graph or list of nodes
A position will be assigned to every node in G.
- nlistlist of lists
List of node lists for each shell.
- rotateangle in radians (default=pi/len(nlist))
Angle by which to rotate the starting position of each shell relative to the starting position of the previous shell. To recreate behavior before v2.5 use rotate=0.
- scalenumber (default: 1)
Scale factor for positions.
- centerarray-like or None
Coordinate pair around which to center the layout.
- dimint
Dimension of layout, currently only dim=2 is supported. Other dimension values result in a ValueError.
- Returns
- posdict
A dictionary of positions keyed by node
- Raises
- ValueError
If dim != 2
Notes
This algorithm currently only works in two dimensions and does not try to minimize edge crossings.
Examples
>>> G = nx.path_graph(4) >>> shells = [[0], [1, 2, 3]] >>> pos = nx.shell_layout(G, shells)