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clean up magic numbers, enable arbitrary gridding, add cache invalidatino

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This commit is contained in:
Jan Petykiewicz 2026-03-26 20:22:17 -07:00
commit 519dd48131
19 changed files with 574 additions and 358 deletions
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examples/01_simple_route.py
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@ -1,8 +1,6 @@
from shapely.geometry import Polygon
from inire.geometry.collision import CollisionEngine
from inire.geometry.primitives import Port
from inire.router.astar import AStarContext, AStarMetrics, route_astar
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
@ -13,43 +11,44 @@ def main() -> None:
print("Running Example 01: Simple Route...")
# 1. Setup Environment
# Define the routing area bounds (minx, miny, maxx, maxy)
# We define a 100um x 100um routing area
bounds = (0, 0, 100, 100)
# Clearance of 2.0um between waveguides
engine = CollisionEngine(clearance=2.0)
# Precompute DangerMap for heuristic speedup
danger_map = DangerMap(bounds=bounds)
danger_map.precompute([]) # No obstacles yet
# Add a simple rectangular obstacle
obstacle = Polygon([(30, 20), (70, 20), (70, 40), (30, 40)])
engine.add_static_obstacle(obstacle)
# Precompute the danger map (distance field) for heuristics
danger_map.precompute([obstacle])
evaluator = CostEvaluator(engine, danger_map, bend_penalty=50.0, sbend_penalty=150.0)
# 2. Configure Router
evaluator = CostEvaluator(engine, danger_map)
context = AStarContext(evaluator, snap_size=1.0, bend_radii=[10.0])
pf = PathFinder(context)
metrics = AStarMetrics()
pf = PathFinder(context, metrics)
# 2. Define Netlist
# Route from (10, 10) to (90, 50)
# The obstacle at y=20-40 blocks the direct path.
# 3. Define Netlist
# Start at (10, 50) pointing East (0 deg)
# Target at (90, 50) pointing East (0 deg)
netlist = {
"simple_net": (Port(10, 10, 0), Port(90, 50, 0)),
"net1": (Port(10, 50, 0), Port(90, 50, 0)),
}
net_widths = {"simple_net": 2.0}
net_widths = {"net1": 2.0}
# 3. Route
# 4. Route
results = pf.route_all(netlist, net_widths)
# 4. Check Results
if results["simple_net"].is_valid:
# 5. Check Results
res = results["net1"]
if res.is_valid:
print("Success! Route found.")
print(f"Path collisions: {results['simple_net'].collisions}")
print(f"Path collisions: {res.collisions}")
else:
print("Failed to route.")
print("Failed to find route.")
# 5. Visualize
fig, ax = plot_routing_results(results, [obstacle], bounds, netlist=netlist)
# 6. Visualize
# plot_routing_results takes a dict of RoutingResult objects
fig, ax = plot_routing_results(results, [], bounds)
fig.savefig("examples/01_simple_route.png")
print("Saved plot to examples/01_simple_route.png")