32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
"""兼容入口：本地域随机化参数包装。
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当前真实随机化在 mcm26b.hrl.curriculum.make_scene 内完成；这里只暴露
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ProblemConfig 的显式替换助手，便于 Optuna/消融在实验配置中记录随机化范围。
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"""
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from __future__ import annotations
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import dataclasses
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from random import Random
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from mcm26b.config import ProblemConfig
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def randomize_problem_config(base: ProblemConfig, *, seed: int,
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bearing_error_half_deg: float | None = None,
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r_eff_range: tuple[float, float] | None = None
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) -> ProblemConfig:
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"""返回带域随机化标量的新配置；不修改全局默认配置。"""
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_rng = Random(seed) # 固定种子留作兼容：真实随机化在 make_scene 内完成
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field = base.field
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if bearing_error_half_deg is None:
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bearing_error_half_deg = field.bearing_error_half_deg
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if r_eff_range is not None:
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lo, hi = r_eff_range
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if not 0 <= lo <= hi:
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raise ValueError("r_eff_range 必须为递增非负区间")
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return dataclasses.replace(base, field=dataclasses.replace(
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field, bearing_error_half_deg=float(bearing_error_half_deg)))
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__all__ = ["randomize_problem_config"]
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