| """Evaluator for circle packing in rectangle (n=21, perimeter=4).""" |
| import subprocess, sys, json |
|
|
| TARGET = 2.3658321334167627 |
|
|
| def evaluate(program_path): |
| script = f""" |
| import json, sys, os, time |
| import numpy as np |
| sys.path.insert(0, os.path.dirname(r'{program_path}')) |
| module_name = os.path.splitext(os.path.basename(r'{program_path}'))[0] |
| start = time.time() |
| try: |
| program = __import__(module_name) |
| circles = program.run() |
| except Exception as e: |
| print(json.dumps({{"error": str(e)}})); sys.exit(0) |
| eval_time = time.time() - start |
| circles = np.array(circles, dtype=float) |
| if circles.shape != (21, 3): |
| print(json.dumps({{"combined_score": 0.0, "error": f"bad shape {{circles.shape}}"}})); sys.exit(0) |
| xs, ys, rs = circles[:,0], circles[:,1], circles[:,2] |
| if np.any(rs < 0) or np.isnan(circles).any(): |
| print(json.dumps({{"combined_score": 0.0, "error": "negative radii or NaN"}})); sys.exit(0) |
| TOL = 1e-6 |
| for i in range(21): |
| for j in range(i+1, 21): |
| d = np.sqrt((xs[i]-xs[j])**2 + (ys[i]-ys[j])**2) |
| if d < rs[i]+rs[j]-TOL: |
| print(json.dumps({{"combined_score": 0.0, "error": f"overlap {{i}} {{j}}"}})); sys.exit(0) |
| x_min = np.min(xs - rs); x_max = np.max(xs + rs) |
| y_min = np.min(ys - rs); y_max = np.max(ys + rs) |
| w = x_max - x_min; h = y_max - y_min |
| peri = 2*(w+h) |
| if peri > 4 + TOL: |
| print(json.dumps({{"combined_score": 0.0, "error": f"perimeter {{peri}} > 4"}})); sys.exit(0) |
| s = float(np.sum(rs)) |
| print(json.dumps({{"combined_score": s/{TARGET}, "sum_radii": s, "eval_time": eval_time}})) |
| """ |
| try: |
| r = subprocess.run([sys.executable, "-c", script], capture_output=True, text=True, timeout=600) |
| for line in reversed(r.stdout.strip().splitlines()): |
| if line.strip().startswith("{"): return json.loads(line.strip()) |
| return {{"combined_score": 0.0, "error": r.stderr[-500:]}} |
| except Exception as e: |
| return {{"combined_score": 0.0, "error": str(e)}} |
|
|
