# RotationCurve（ロブロックス クラス）

> Represents a sequence of rotations and the interpolation curve between them.

- URL：https://roblox.minecraft-okinawa.com/reference/classes/RotationCurve/
- 公式：https://create.roblox.com/docs/reference/engine/classes/RotationCurve
- 受け継いでいるクラス：Instance

## プロパティ

- `RotationCurve.Length: int`：Number of rotation keys in this curve.

## メソッド

- `RotationCurve:GetKeyAtIndex(index: int): RotationCurveKey`：Returns a copy of a key at a given index.
- `RotationCurve:GetKeyIndicesAtTime(time: float): Array`：Returns the index of the last and first key of a period of time.
- `RotationCurve:GetKeys(): Array`：Returns a copy of all the keys in the rotation curve as a Luau array of Datatype.RotationCurveKey|RotationCurveKeys.
- `RotationCurve:GetValueAtTime(time: float): CFrame?`：Samples the rotation curve at a given time and returns the corresponding rotation as a CFrame.
- `RotationCurve:InsertKey(key: RotationCurveKey): Array`：Adds the key passed as an argument to this curve. If a key at the same time is found, it will be replaced.
- `RotationCurve:RemoveKeyAtIndex(startingIndex: int, count: int): int`：Removes a given number of keys starting from a given index.
- `RotationCurve:SetKeys(keys: Array): int`：Resets this curve's keys using the RotationCurveKey array passed as an argument.

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/）