# NegateOperationHiddenHistory（ロブロックス 列挙型（Enum））

> Records the CSG combination operation — Union or Intersection — that previously merged multiple NegateOperation parts, allowing the engine to restore the correct result type when those parts are later separated.

- URL：https://roblox.minecraft-okinawa.com/reference/enums/NegateOperationHiddenHistory/
- 公式：https://create.roblox.com/docs/reference/engine/enums/NegateOperationHiddenHistory

## 選べる値

- Enum.NegateOperationHiddenHistory.None（0）：Indicates no previous CSG combination operation is recorded for this NegateOperation part. This is the default value of PreviousOperation.
- Enum.NegateOperationHiddenHistory.NegatedUnion（1）：Indicates this NegateOperation was previously produced by a Union operation applied to multiple negated parts.
- Enum.NegateOperationHiddenHistory.NegatedIntersection（2）：Indicates this NegateOperation was previously produced by an Intersection operation applied to multiple negated parts.

英語の説明とメンバー一覧：Roblox Creator Documentation（CC BY 4.0）。日本語の解説はこのサイト独自のものです。

執筆：鈴木孝昌（現役プロジェクトマネージャー／プログラミング講師）／運営：沖縄マイクラ部 プログラミングスクール「クロスウェーブ」（https://minecraft-okinawa.com/）