Class Bezier

贝塞尔帮助类

Hierarchy

Bezier

Index

Methods

Methods

Static getFirstDerivative

getFirstDerivative(p0: Vector2, p1: Vector2, p2: Vector2, t: number): Vector2

- Defined in src/Math/Bezier.ts:25
得到二次贝塞尔函数的一阶导数

Parameters
- p0: Vector2
- p1: Vector2
- p2: Vector2
- t: number
Returns Vector2

Static getFirstDerivativeThree

getFirstDerivativeThree(start: Vector2, firstControlPoint: Vector2, secondControlPoint: Vector2, end: Vector2, t: number): Vector2

- Defined in src/Math/Bezier.ts:38
得到一个三次贝塞尔函数的一阶导数

Parameters
- start: Vector2
- firstControlPoint: Vector2
- secondControlPoint: Vector2
- end: Vector2
- t: number
Returns Vector2

Static getOptimizedDrawingPoints

getOptimizedDrawingPoints(start: Vector2, firstCtrlPoint: Vector2, secondCtrlPoint: Vector2, end: Vector2, distanceTolerance?: number): Vector2[]

- Defined in src/Math/Bezier.ts:74
递归地细分bezier曲线，直到满足距离校正在这种算法中，平面切片的点要比曲面切片少。返回完成后应返回到ListPool的合并列表。

Parameters
- start: Vector2
- firstCtrlPoint: Vector2
- secondCtrlPoint: Vector2
- end: Vector2
- Default value distanceTolerance: number = 1
Returns Vector2[]

Static getPoint

getPoint(p0: Vector2, p1: Vector2, p2: Vector2, t: number): Vector2

- Defined in src/Math/Bezier.ts:11
二次贝塞尔曲线

Parameters
- p0: Vector2
- p1: Vector2
- p2: Vector2
- t: number
Returns Vector2

Static getPointThree

getPointThree(start: Vector2, firstControlPoint: Vector2, secondControlPoint: Vector2, end: Vector2, t: number): Vector2

- Defined in src/Math/Bezier.ts:55
计算一个三次贝塞尔

Parameters
- start: Vector2
- firstControlPoint: Vector2
- secondControlPoint: Vector2
- end: Vector2
- t: number
Returns Vector2

Static Private recursiveGetOptimizedDrawingPoints

recursiveGetOptimizedDrawingPoints(start: Vector2, firstCtrlPoint: Vector2, secondCtrlPoint: Vector2, end: Vector2, points: Vector2[], distanceTolerance: number): void

- Defined in src/Math/Bezier.ts:93
递归地细分bezier曲线，直到满足距离校正。在这种算法中，平面切片的点要比曲面切片少。

Parameters
- start: Vector2
- firstCtrlPoint: Vector2
- secondCtrlPoint: Vector2
- end: Vector2
- points: Vector2[]
- distanceTolerance: number
Returns void

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