inire/examples/05_orientation_stress.py

from inire import NetSpec, ObjectiveWeights, Port, RoutingOptions, RoutingProblem, SearchOptions, route
from inire.utils.visualization import plot_routing_results


def main() -> None:
    print("Running Example 05: Orientation Stress Test...")

    bounds = (0, 0, 200, 200)
    netlist = {
        "u_turn": (Port(50, 50, 0), Port(50, 70, 180)),
        "loop": (Port(100, 100, 90), Port(100, 80, 270)),
        "zig_zag": (Port(20, 150, 0), Port(180, 150, 0)),
    }
    problem = RoutingProblem(
        bounds=bounds,
        nets=tuple(NetSpec(net_id, start, target, width=2.0) for net_id, (start, target) in netlist.items()),
    )
    options = RoutingOptions(
        search=SearchOptions(bend_radii=(20.0,)),
        objective=ObjectiveWeights(bend_penalty=50.0),
    )

    print("Routing complex orientation nets...")
    run = route(problem, options=options)
    for net_id, result in run.results_by_net.items():
        status = "Success" if result.is_valid else "Failed"
        print(f"  {net_id}: {status}")

    fig, _ax = plot_routing_results(run.results_by_net, [], bounds, netlist=netlist)
    fig.savefig("examples/05_orientation_stress.png")
    print("Saved plot to examples/05_orientation_stress.png")


if __name__ == "__main__":
    main()