Visualizing tools for the circuits

[wenzhe-li]

I found it useful to visualize the circuit in programming. Below is a naive print function for probabilistic circuits, but we can do better with julia graph visualization tools : )

function print_circuit_dfs(node::ProbΔNode, tab=0, weight=0)
  for i = 1 : tab
    print("> ")
  end
  if node isa ProbLiteral
    print("Literal ", lit2var(literal(node)), " ", positive(node), " ")
    if weight > 0
      print("(", weight, ")")
    end
    print("\n")
  elseif node isa Prob⋀
    print("AND ")
    if weight > 0
      print("(", weight, ")")
    end
    print("\n")
    for i in 1 : length(node.children)
      print_circuit_dfs(node.children[i], tab + 1)
    end
  elseif node isa Prob⋁
    print("OR ")
    if weight > 0
      print("(", weight, ")")
    end
    print("\n")
    p_thetas = [exp(node.log_thetas[i]) for i in 1 : length(node.children)]
    for i in 1 : length(node.children)
      print_circuit_dfs(node.children[i], tab + 1, p_thetas[i])
    end
  else
    println("ERROR ", node)
  end
end

[guyvdbroeck]

Would be nice to use https://github.com/JuliaGraphs/GraphPlot.jl for this.

[khosravipasha]

GraphPlot does not support Tree of DAG layout it seems.