Specifying positions of nodes in a graph when rendering?

[adam2392]

Hi,

I was wondering if it is possible to render a DiGraph() while specifying the positions?

Reference: py-why/pywhy-graphs#24 (comment)

[rossbar]

It's certainly possible, but would be quite clunky to do manually. The positions are specified according to the dot language spec; specifically the "pos" attribute of edges. The typical way for setting these values is using one of the graphviz layouts (e.g. A.layout("neato")). In principle, you can set the position attribute manually with something like:

>>> edge = A.get_edge(n1, n2)
>>> edge.attr["pos"] = "some_string_that_conforms_to_the_pos_edge_attr_via_the_dot_standard"