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Create Static Directed Graph in Julia

How can I create a Static Directed Graph from an array of tuples in Julia without having to create a Simple Directed Graph first. An example edge list I have is [(1,2),(2,3),(3,4)]. The documentation of StaticGraphs.jl is limited.

Solution

  • There's a way to do this but it requires you to have the edges and their reverses already sorted into two vectors. Assume you have a directed path graph 1 -> 2 -> 3 -> 4:

    fwd = [(1, 2), (2, 3), (3, 4)]  # these are your forward edges, sorted
rev = [(2, 1), (3, 2), (4, 3)]  # these are the reverse of the forward edges, sorted
# also, sort(reverse.(fwd)) will do this easily.

g = StaticDiGraph(4, fwd, rev)  # number of vertices is the first argument

    testing:

    julia> h = StaticDiGraph(path_digraph(4))
{4, 3} directed simple static {UInt8, UInt8} graph

julia> g == h
true