Class: PolygonShape

多边形

由多个连续的点坐标构成

Hierarchy

• Shape

  ↳ PolygonShape

Table of contents

Constructors

• constructor

Properties

• _pathArray
• aspect
• className
• connectionMap
• ctrlPoints
• dirty
• isClosed
• isUnit
• package
• points
• positions

Methods

• draw
• markDirty
• rotate
• scale
• setConnections
• skew
• toJSON
• updatePoints
• Scale
• circle
• fromJSON
• fromPoints
• innerGrid
• normalPoints
• outerGrid
• pointToSize
• polygon

Constructors

constructor

new PolygonShape(unitPoints)

Parameters

Name	Type
unitPoints	PointLike[]

Overrides

Shape.constructor

Properties

_pathArray

Optional _pathArray: any[]

Inherited from

Shape._pathArray

---

aspect

aspect: "fixed" | "variable"

Inherited from

Shape.aspect

---

className

className: any

类名称

Overrides

Shape.className

---

connectionMap

connectionMap: Object

Index signature

▪ [key: string]: any

Inherited from

Shape.connectionMap

---

ctrlPoints

ctrlPoints: string[]

Inherited from

Shape.ctrlPoints

---

dirty

dirty: boolean

Inherited from

Shape.dirty

---

isClosed

isClosed: boolean = true

是否封闭图形（最后一个点是否连接到第一个点形成封闭图形），默认true

---

isUnit

isUnit: boolean

是否单位坐标

Inherited from

Shape.isUnit

---

package

package: string

包名称

Inherited from

Shape.package

---

points

points: PointLike[]

单位点列表 x:[-0.5, 0.5] y: [-0.5, 0.5]

---

positions

positions: any = {}

Inherited from

Shape.positions

Methods

draw

draw(ctx, object, points?): void

Parameters

Name	Type
ctx	CanvasRenderingContext2D
object	DisplayObject
points?	PointLike[]

Returns

void

Overrides

Shape.draw

---

markDirty

markDirty(): void

标记‘脏’，请求更新绘制

Returns

void

Inherited from

Shape.markDirty

---

rotate

rotate(angle): PolygonShape

旋转，会修改points属性

Parameters

Name	Type
angle	number

Returns

PolygonShape

---

scale

scale(sx, sy): PolygonShape

缩放，会修改points属性

Parameters

Name	Type
sx	number
sy	number

Returns

PolygonShape

---

setConnections

setConnections(connections): void

Parameters

Name	Type
connections	any

Returns

void

Inherited from

Shape.setConnections

---

skew

skew(sx, sy): PolygonShape

Parameters

Name	Type
sx	number
sy	number

Returns

PolygonShape

---

toJSON

toJSON(): any

Returns

any

Overrides

Shape.toJSON

---

updatePoints

updatePoints(unitPoints): void

更新数据点

Parameters

Name	Type	Description
unitPoints	PointLike[]	单位点列表 x:[-0.5, 0.5] y: [-0.5, 0.5]

Returns

void

---

Scale

Static Scale(sx, sy): (p: PointLike) => PointLike

Deprecated

Parameters

Name	Type
sx	number
sy	number

Returns

fn

(p): PointLike

Parameters

Name	Type
p	PointLike

Returns

PointLike

---

circle

Static circle(opt): any[]

生成圆上一列的点

Parameters

Name	Type
opt	Object
opt.begin	number
opt.end	number
opt.pointCount?	number
opt.step	number

Returns

any[]

Inherited from

Shape.circle

---

fromJSON

Static fromJSON(json): PolygonShape

Parameters

Name	Type
json	any

Returns

PolygonShape

---

fromPoints

Static fromPoints(points, keepAspectRatio?): PolygonShape

Parameters

Name	Type	Default value
points	PointLike[]	undefined
keepAspectRatio	boolean	true

Returns

PolygonShape

Inherited from

Shape.fromPoints

---

innerGrid

Static innerGrid(rows, cols): PointLike[]

生成内网格坐标数组

Parameters

Name	Type	Description
rows	number	行
cols	number	列

Returns

PointLike[]

Inherited from

Shape.innerGrid

---

normalPoints

Static normalPoints(points, keepAspectRatio?): { x: number ; y: number }[]

将指定点坐标单位化

Parameters

Name	Type	Default value
points	PointLike[]	undefined
keepAspectRatio	boolean	true

Returns

{ x: number ; y: number }[]

Inherited from

Shape.normalPoints

---

outerGrid

Static outerGrid(rows, cols): PointLike[]

生成网格坐标(外边框)数组

Parameters

Name	Type	Description
rows	number	行
cols	number	列

Returns

PointLike[]

一维数组(单位坐标)

Inherited from

Shape.outerGrid

---

pointToSize

Static pointToSize(points, width, height, keepAspectRatio?): { x: number ; y: number }[]

Parameters

Name	Type	Default value
points	PointLike[]	undefined
width	number	undefined
height	number	undefined
keepAspectRatio	boolean	false

Returns

{ x: number ; y: number }[]

Inherited from

Shape.pointToSize

---

polygon

Static polygon(edgeCount?, initAngle?): PolygonShape

生成多边形Shape对象

Parameters

Name	Type	Default value	Description
edgeCount	number	3	边的条数
initAngle	number	0	初始角度

Returns

PolygonShape

Inherited from

Shape.polygon