rustworkx.generators.directed_star_graph

directed_star_graph(num_nodes=None, weights=None, inward=False, bidirectional=False, multigraph=True, /)

Generate a directed star graph

Parameters:

• num_node (int) – The number of nodes to generate the graph with. Node weights will be None if this is specified. If both num_node and weights are set this will be ignored and weights will be used.

• weights (list) – A list of node weights, the first element in the list will be the center node of the star graph. If both num_node and weights are set this will be ignored and weights will be used.

• bidirectional (bool) – Adds edges in both directions between two nodes if set to True. Default value is False.

• inward (bool) – If set True the nodes will be directed towards the center node. This parameter is ignored if bidirectional is set to True.

• multigraph (bool) – When set to False the output PyDiGraph object will not be not be a multigraph and won’t allow parallel edges to be added. Instead calls which would create a parallel edge will update the existing edge.

Returns:

The generated star graph

Return type:

PyDiGraph

Raises:

IndexError – If neither num_nodes or weights are specified

import rustworkx.generators
from rustworkx.visualization import mpl_draw

graph = rustworkx.generators.directed_star_graph(10)
mpl_draw(graph)

import rustworkx.generators
from rustworkx.visualization import mpl_draw

graph = rustworkx.generators.directed_star_graph(10, inward=True)
mpl_draw(graph)