# Path2D（ロブロックス クラス）

> Represents a 2D cubic spline path that renders a stroked curve under any GuiObject.

- URL：https://roblox.minecraft-okinawa.com/reference/classes/Path2D/
- 公式：https://create.roblox.com/docs/reference/engine/classes/Path2D
- 受け継いでいるクラス：GuiBase

## プロパティ

- `Path2D.Closed: boolean`：Connects the first and last control points when enabled.
- `Path2D.Color3: Color3`：Determines the color of the Path2D.
- `Path2D.Thickness: float`：Determines how thick the Path2D path is.
- `Path2D.Visible: boolean`：Determines if the Path2D path is rendered or not.
- `Path2D.ZIndex: int`：Determines the order in which a Path2D path renders relative to other GUIs.

## メソッド

- `Path2D:GetBoundingRect(): Rect`：Returns the bounding size for the Path2D.
- `Path2D:GetControlPoint(index: int): Path2DControlPoint`：Returns the Path2DControlPoint for a given index.
- `Path2D:GetControlPoints(): Array`：Returns all the Datatype.Path2DControlPoint|Path2DControlPoints for the Path2D.
- `Path2D:GetLength(): float`：Returns the length of the Path2D.
- `Path2D:GetMaxControlPoints(): int`：Returns the maximum allowed number of control points.
- `Path2D:GetPositionOnCurve(t: float): UDim2`：Returns the position at a given value in parameter space.
- `Path2D:GetPositionOnCurveArcLength(t: float): UDim2`：Returns the position at a given value in arc length space.
- `Path2D:GetTangentOnCurve(t: float): Vector2`：Returns the tangent at a given value in parameter space.
- `Path2D:GetTangentOnCurveArcLength(t: float): Vector2`：Returns the tangent at a given value in arc length space.
- `Path2D:InsertControlPoint(index: int, point: Path2DControlPoint): ()`：Inserts a new control point at a given index.
- `Path2D:RemoveControlPoint(index: int): ()`：Removes a control at the given index.
- `Path2D:SetControlPoints(controlPoints: Array): ()`：Sets all the control points to the specified array, replacing all existing points with new ones.
- `Path2D:UpdateControlPoint(index: int, point: Path2DControlPoint): ()`：Updates a control point at the given index.

## イベント

- `Path2D.ControlPointChanged()`：Fires any time control points change.

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/）