more bend work; bounds constrain edges

examples/05_orientation_stress.py

@@ -16,26 +16,26 @@ def main() -> None:
     engine = CollisionEngine(clearance=2.0)
     danger_map = DangerMap(bounds=bounds)
     danger_map.precompute([])
-    
+
     evaluator = CostEvaluator(engine, danger_map, greedy_h_weight=1.1)
     router = AStarRouter(evaluator, node_limit=100000)
     pf = PathFinder(router, evaluator)
-    
+
     # 2. Define Netlist with various orientation challenges
     netlist = {
         # Opposite directions: requires two 90-degree bends to flip orientation
         "opposite": (Port(10, 80, 0), Port(90, 80, 180)),
-        
+
         # 90-degree turn: standard L-shape
         "turn_90": (Port(10, 60, 0), Port(40, 90, 90)),
-        
+
         # Output behind input: requires a full U-turn
         "behind": (Port(80, 40, 0), Port(20, 40, 0)),
-        
+
         # Sharp return: output is behind and oriented towards the input
         "return_loop": (Port(80, 20, 0), Port(40, 10, 180)),
     }
-    net_widths = {nid: 2.0 for nid in netlist}
+    net_widths = dict.fromkeys(netlist, 2.0)
 
     # 3. Route
     results = pf.route_all(netlist, net_widths)