47 lines
1.6 KiB
Python
47 lines
1.6 KiB
Python
from inire.geometry.collision import CollisionEngine
|
|
from inire.geometry.primitives import Port
|
|
from inire.router.astar import AStarContext, AStarMetrics
|
|
from inire.router.cost import CostEvaluator
|
|
from inire.router.danger_map import DangerMap
|
|
from inire.router.pathfinder import PathFinder
|
|
from inire.utils.visualization import plot_routing_results
|
|
|
|
|
|
def main() -> None:
|
|
print("Running Example 03: Locked Paths...")
|
|
|
|
# 1. Setup Environment
|
|
bounds = (0, -50, 100, 50)
|
|
engine = CollisionEngine(clearance=2.0)
|
|
danger_map = DangerMap(bounds=bounds)
|
|
danger_map.precompute([])
|
|
|
|
evaluator = CostEvaluator(engine, danger_map)
|
|
context = AStarContext(evaluator, snap_size=1.0, bend_radii=[10.0])
|
|
metrics = AStarMetrics()
|
|
pf = PathFinder(context, metrics)
|
|
|
|
# 2. Route Net A and 'Lock' it
|
|
# Net A is a straight path blocking the direct route for Net B
|
|
print("Routing initial net...")
|
|
netlist_a = {"netA": (Port(10, 0, 0), Port(90, 0, 0))}
|
|
results_a = pf.route_all(netlist_a, {"netA": 2.0})
|
|
|
|
# Locking prevents Net A from being removed or rerouted during NC iterations
|
|
engine.lock_net("netA")
|
|
print("Initial net locked as static obstacle.")
|
|
|
|
# 3. Route Net B (forced to detour)
|
|
print("Routing detour net around locked path...")
|
|
netlist_b = {"netB": (Port(50, -20, 90), Port(50, 20, 90))}
|
|
results_b = pf.route_all(netlist_b, {"netB": 2.0})
|
|
|
|
# 4. Visualize
|
|
results = {**results_a, **results_b}
|
|
fig, ax = plot_routing_results(results, [], bounds)
|
|
fig.savefig("examples/03_locked_paths.png")
|
|
print("Saved plot to examples/03_locked_paths.png")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|