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import numpy as np
def extract_values_from_list(raw_list):
"""
辅助函数：从求解器输出的复杂列表中提取纯数值
兼容两种格式：
1. [10.5, -5.0] (纯数字)
2. [{"value": 10.5}, {"value": -5.0}] (对象字典)
"""
values = []
for item in raw_list:
if isinstance(item, (int, float)):
values.append(float(item))
elif isinstance(item, dict):
# 优先找 'value' 字段，如果没有则尝试找 'force'
val = item.get("value", item.get("force", 0.0))
values.append(float(val))
return values
def compute_score(ai_solution: dict, gt_solution: dict, tolerance=0.05):
"""
对比 AI 算出的结果和标准答案
返回: (score, details_dict)
score: 0 或 1
"""
if not ai_solution or not gt_solution:
return 0, {"reason": "Solution is None"}
# --- 1. 数据清洗与提取 ---
# 使用辅助函数提取纯数值列表
ai_raw_list = extract_values_from_list(ai_solution.get("reactions", []))
gt_raw_list = extract_values_from_list(gt_solution.get("reactions", []))
# --- Part A: 支座反力 (Reactions) ---
# 取绝对值并从大到小排序，消除顺序和正负号的影响
ai_reacts = sorted([abs(x) for x in ai_raw_list], reverse=True)
gt_reacts = sorted([abs(x) for x in gt_raw_list], reverse=True)
reactions_pass = False
# 对比逻辑
if len(ai_reacts) == len(gt_reacts):
# 转换为 numpy 数组方便计算
ai_arr = np.array(ai_reacts)
gt_arr = np.array(gt_reacts)
# 避免分母为 0
denom = gt_arr.copy()
denom[denom == 0] = 1.0
diff = np.abs(ai_arr - gt_arr)
# 判定标准：绝对误差 < 1e-4 或者 相对误差 < tolerance
# (这样既能处理大数，也能处理接近0的小数)
is_close = (diff < 1e-3) | (diff / denom <= tolerance)
reactions_pass = np.all(is_close)
else:
# 支座数量都不对，直接判错
pass
# --- Part B: 最大弯矩 (Global Max Moment) ---
# 同样要处理可能的字典格式，不过 max_moment 通常是个单值
raw_ai_moment = ai_solution.get("max_moment", 0.0)
raw_gt_moment = gt_solution.get("max_moment", 0.0)
# 如果是字典，提取 value
if isinstance(raw_ai_moment, dict): raw_ai_moment = raw_ai_moment.get("value", 0.0)
if isinstance(raw_gt_moment, dict): raw_gt_moment = raw_gt_moment.get("value", 0.0)
ai_moment = abs(float(raw_ai_moment))
gt_moment = abs(float(raw_gt_moment))
moment_pass = False
if gt_moment == 0:
moment_pass = ai_moment < 1e-3
else:
moment_pass = abs(ai_moment - gt_moment) / gt_moment <= tolerance
# --- 最终判定 ---
is_correct = reactions_pass and moment_pass
details = {
"reactions_match": bool(reactions_pass),
"moment_match": bool(moment_pass),
"ai_reacts": ai_reacts, # 用于调试日志
"gt_reacts": gt_reacts
}
return (1.0 if is_correct else 0.0), details |