go to a tunable 5um grid

examples/05_orientation_stress.py

@@ -11,42 +11,31 @@ def main() -> None:
     print("Running Example 05: Orientation Stress Test...")
 
     # 1. Setup Environment
-    # Give some breathing room (-20 to 120) for U-turns and flips (R=10)
-    bounds = (-20, -20, 120, 120)
+    bounds = (0, 0, 200, 200)
     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)
-    router.config.bend_collision_type = "clipped_bbox"
-    router.config.bend_clip_margin = 1.0
+    evaluator = CostEvaluator(engine, danger_map, bend_penalty=50.0, sbend_penalty=150.0)
+    router = AStarRouter(evaluator, snap_size=1.0, straight_lengths=[1.0, 5.0, 25.0], bend_radii=[10.0])
     pf = PathFinder(router, evaluator)
 
-    # 2. Define Netlist with various orientation challenges
+    # 2. Define Netlist: Complex 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)),
+        "u_turn": (Port(50, 100, 0), Port(30, 100, 180)),
+        "loop": (Port(150, 50, 90), Port(150, 40, 90)),
+        "zig_zag": (Port(20, 20, 0), Port(180, 180, 0)),
     }
-    net_widths = dict.fromkeys(netlist, 2.0)
+    net_widths = {nid: 2.0 for nid in netlist}
 
     # 3. Route
+    print("Routing complex orientation nets...")
     results = pf.route_all(netlist, net_widths)
 
     # 4. Check Results
     for nid, res in results.items():
         status = "Success" if res.is_valid else "Failed"
-        total_len = sum(comp.length for comp in res.path) if res.path else 0
-        print(f"  {nid:12}: {status}, total_length={total_len:.1f}")
+        print(f"  {nid}: {status}")
 
     # 5. Visualize
     fig, ax = plot_routing_results(results, [], bounds, netlist=netlist)