56 lines
2 KiB
Python
56 lines
2 KiB
Python
from inire.geometry.collision import CollisionEngine
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from inire.geometry.primitives import Port
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from inire.router.astar import AStarRouter
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from inire.router.cost import CostEvaluator
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from inire.router.danger_map import DangerMap
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from inire.router.pathfinder import PathFinder
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from inire.utils.visualization import plot_routing_results
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def main() -> None:
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print("Running Example 05: Orientation Stress Test...")
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# 1. Setup Environment
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# Give some breathing room (-20 to 120) for U-turns and flips (R=10)
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bounds = (-20, -20, 120, 120)
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engine = CollisionEngine(clearance=2.0)
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danger_map = DangerMap(bounds=bounds)
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danger_map.precompute([])
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evaluator = CostEvaluator(engine, danger_map, greedy_h_weight=1.1)
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router = AStarRouter(evaluator, node_limit=100000)
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pf = PathFinder(router, evaluator)
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# 2. Define Netlist with various orientation challenges
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netlist = {
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# Opposite directions: requires two 90-degree bends to flip orientation
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"opposite": (Port(10, 80, 0), Port(90, 80, 180)),
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# 90-degree turn: standard L-shape
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"turn_90": (Port(10, 60, 0), Port(40, 90, 90)),
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# Output behind input: requires a full U-turn
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"behind": (Port(80, 40, 0), Port(20, 40, 0)),
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# Sharp return: output is behind and oriented towards the input
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"return_loop": (Port(80, 20, 0), Port(40, 10, 180)),
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}
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net_widths = {nid: 2.0 for nid in netlist}
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# 3. Route
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results = pf.route_all(netlist, net_widths)
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# 4. Check Results
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for nid, res in results.items():
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status = "Success" if res.is_valid else "Failed"
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total_len = sum(comp.length for comp in res.path) if res.path else 0
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print(f" {nid:12}: {status}, total_length={total_len:.1f}")
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# 5. Visualize
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fig, ax = plot_routing_results(results, [], bounds, netlist=netlist)
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fig.savefig("examples/orientation_stress.png")
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print("Saved plot to examples/orientation_stress.png")
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if __name__ == "__main__":
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main()
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