Class Vector2

二维向量

Author

林一怂儿

Date

2022/12/13 19:01:56

Hierarchy

Vector2

Index

Constructors

Properties

x y

Methods

divide dotProduct multiplicationCross multiply plus subtract toString checkCross checkInRectangle checkInTriangle distance includedAngle rotateAroundPoint

Constructors

constructor

new Vector2(x: number, y: number): Vector2
Parameters
- x: number
- y: number
Returns Vector2
- Defined in lib/vertor2.ts:17

Properties

x

x: number = 0

x轴坐标

y

y: number = 0

y轴坐标

Methods

divide

divide(t: Vector2): Vector2
除

Returns
自身值 / 目标值 = V2(sx/tx,sy/ty);
Parameters
- t: Vector2
  
  目标值
Returns Vector2
- Defined in lib/vertor2.ts:54

dotProduct

dotProduct(t: Vector2): number
点乘

Returns
自身值 · 目标值 = s.xt.x+s.yt.y;
Parameters
- t: Vector2
  
  目标值
Returns number
- Defined in lib/vertor2.ts:72

multiplicationCross

multiplicationCross(t: Vector2): number
叉乘

Returns
自身值 · 目标值 = s.xt.y-s.yt.x;
Parameters
- t: Vector2
  
  目标值
Returns number
- Defined in lib/vertor2.ts:63

multiply

multiply(t: Vector2): Vector2
乘

Returns
自身值 * 目标值 = V2(sxtx,syty);
Parameters
- t: Vector2
  
  目标值
Returns Vector2
- Defined in lib/vertor2.ts:45

plus

plus(t: Vector2): Vector2
加

Returns
自身值 + 目标值 = V2(sx+tx,sy+ty);
Parameters
- t: Vector2
  
  目标值
Returns Vector2
- Defined in lib/vertor2.ts:27

subtract

subtract(t: Vector2): Vector2
减

Returns
自身值 - 目标值 = V2(sx-tx,sy-ty);
Parameters
- t: Vector2
  
  目标值
Returns Vector2
- Defined in lib/vertor2.ts:36

toString

toString(): string
转换字符串

Returns

Returns string
- Defined in lib/vertor2.ts:173

`Static` checkCross

checkCross(p1: Vector2, p2: Vector2, p3: Vector2, p4: Vector2): boolean
检测两线段是否交叉
Parameters
- p1: Vector2
  
  点1
- p2: Vector2
  
  点2
- p3: Vector2
  
  点3
- p4: Vector2
  
  点4
Returns boolean
- Defined in lib/vertor2.ts:83

`Static` checkInRectangle

checkInRectangle(p: Vector2, p1: Vector2, p2: Vector2, p3: Vector2): boolean
检测p点是否在点p1,p2,p3,p4组成的矩形内
Parameters
- p: Vector2
- p1: Vector2
- p2: Vector2
- p3: Vector2
Returns boolean
- Defined in lib/vertor2.ts:122

`Static` checkInTriangle

checkInTriangle(p: Vector2, p1: Vector2, p2: Vector2, p3: Vector2): boolean
检测p点是否在点p1,p2,p3组成的三角形内
Parameters
- p: Vector2
- p1: Vector2
- p2: Vector2
- p3: Vector2
Returns boolean
- Defined in lib/vertor2.ts:102

`Static` distance

distance(p1: Vector2, p2: Vector2): number
计算p1到p2两点之间的距离保留3位小数
Parameters
- p1: Vector2
- p2: Vector2
Returns number
- Defined in lib/vertor2.ts:156

`Static` includedAngle

includedAngle(v1: Vector2, v2: Vector2): number
计算两直线的夹角角度保留三位小数
Parameters
- v1: Vector2
- v2: Vector2
Returns number
- Defined in lib/vertor2.ts:165

`Static` rotateAroundPoint

rotateAroundPoint(p: Vector2, o: Vector2, angle: number): Vector2
p点绕o点旋转angle°
Parameters
- p: Vector2
  
  当前点
- o: Vector2
  
  源点
- angle: number
  
  角度
Returns Vector2
- Defined in lib/vertor2.ts:142

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