54 lines
2 KiB
Python
54 lines
2 KiB
Python
from shapely.geometry import Polygon
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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 08: Custom Bend Geometry...")
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# 1. Setup Environment
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bounds = (0, 0, 150, 150)
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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, bend_penalty=50.0, sbend_penalty=150.0)
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router = AStarRouter(evaluator, snap_size=1.0, straight_lengths=[1.0, 5.0, 25.0], bend_radii=[10.0])
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pf = PathFinder(router, evaluator)
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# 2. Define Netlist
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netlist = {
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"custom_bend": (Port(20, 20, 0), Port(100, 100, 90)),
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}
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net_widths = {"custom_bend": 2.0}
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# 3. Route with standard arc first
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print("Routing with standard arc...")
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results_std = pf.route_all(netlist, net_widths)
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# 4. Define a custom 'trapezoid' bend model
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# (Just for demonstration - we override the collision model during search)
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custom_poly = Polygon([(0, 0), (20, 0), (20, 20), (0, 20)]) # Oversized box
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print("Routing with custom collision model...")
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# Override bend_collision_type with a literal Polygon
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router_custom = AStarRouter(evaluator, snap_size=1.0, straight_lengths=[1.0, 5.0, 25.0], bend_radii=[10.0], bend_collision_type=custom_poly)
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results_custom = PathFinder(router_custom, evaluator, use_tiered_strategy=False).route_all(
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{"custom_model": netlist["custom_bend"]}, {"custom_model": 2.0}
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)
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# 5. Visualize
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all_results = {**results_std, **results_custom}
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fig, ax = plot_routing_results(all_results, [], bounds, netlist=netlist)
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fig.savefig("examples/08_custom_bend_geometry.png")
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print("Saved plot to examples/08_custom_bend_geometry.png")
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if __name__ == "__main__":
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main()
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