首页

Appearance

@jtopo/core / PolygonShape

Class: PolygonShape ​

多边形

由多个连续的点坐标构成

Hierarchy ​

Table of contents ​

Constructors ​

Properties ​

Methods ​

Constructors ​

constructor ​

new PolygonShape(normalPoints)

构造函数

Parameters ​

NameTypeDescription
normalPointsPointLike[]归一化点列表 x和y取值区间:[-1, 1]

Overrides ​

Shape.constructor

Properties ​

className ​

className: any

类名称

Overrides ​

Shape.className

dirty ​

dirty: boolean

是否更新了数据

height ​

height: number

默认或建议的高度，默认32

Inherited from ​

Shape.height

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

Overrides ​

Shape.isClosed

isUnit ​

isUnit: boolean

Inherited from ​

Shape.isUnit

vertices ​

Readonly vertices: PointLike[] = []

顶点集合(归一化坐标)

Inherited from ​

Shape.vertices

width ​

width: number

默认或建议的宽度，默认32

Inherited from ​

Shape.width

Methods ​

draw ​

draw(ctx, node): void

绘制图形

Parameters ​

NameType
ctxCanvasRenderingContext2D
nodeNE

Returns ​

void

Overrides ​

Shape.draw

getAnchors ​

getAnchors(): Map<string, Anchor>

Returns ​

Map<string, Anchor>

Inherited from ​

Shape.getAnchors

getConnectAutoPoint ​

getConnectAutoPoint(x, y, obj): Object

获取连接点 (x,y) -> 本对象中心 与边框的交点

Parameters ​

NameType
xnumber
ynumber
objNE

Returns ​

Object

NameType
xnumber
ynumber

Inherited from ​

Shape.getConnectAutoPoint

getConnectionAnchor ​

getConnectionAnchor(name): Anchor

获取连接点

Parameters ​

NameType
namestring

Returns ​

Anchor

Inherited from ​

Shape.getConnectionAnchor

getConnectionAnchors ​

getConnectionAnchors(): IterableIterator<Anchor>

获取所有连接点

Returns ​

IterableIterator<Anchor>

Inherited from ​

Shape.getConnectionAnchors

getIntersect ​

getIntersect(x, y, obj): Intersect

获取 图形上距离(x,y)最近的点

Parameters ​

NameType
xnumber
ynumber
objNE

Returns ​

Intersect

Inherited from ​

Shape.getIntersect

hasAnchor ​

hasAnchor(name): boolean

Parameters ​

NameType
namestring

Returns ​

boolean

Inherited from ​

Shape.hasAnchor

rotate ​

rotate(angle): PolygonShape

旋转

Parameters ​

NameTypeDescription
anglenumber角度(弧度)

Returns ​

PolygonShape

scale ​

scale(scaleX, scaleY): PolygonShape

缩放，对于shape而言，宽高的缩放不一致时才有意义（用于压扁、变宽）

Parameters ​

NameType
scaleXnumber
scaleYnumber

Returns ​

PolygonShape

setConnections ​

setConnections(connections): void

设置连接点

Parameters ​

NameType
connections{ name: string ; x: number ; y: number ; usage?: AnchorUsageType }[]

Returns ​

void

Inherited from ​

Shape.setConnections

skew ​

skew(scaleX, scaleY): PolygonShape

倾斜

Parameters ​

NameType
scaleXnumber
scaleYnumber

Returns ​

PolygonShape

toJSON ​

toJSON(): any

Returns ​

any

Inherited from ​

Shape.toJSON

updatePoints ​

updatePoints(normalPoints): void

更新数据点

Parameters ​

NameTypeDescription
normalPointsPointLike[]归一化点列表 x和y取值区间:[-1, 1]

Returns ​

void

circle ​

Static circle(opt): any[]

生成圆环点坐标

Parameters ​

NameType
optBuildCircleOpt

Returns ​

any[]

PointLike[] 顶点坐标集合

Inherited from ​

Shape.circle

fromJSON ​

Static fromJSON(json): Shape

Parameters ​

NameType
jsonany

Returns ​

Shape

Inherited from ​

Shape.fromJSON

grid ​

Static grid(rows, cols): PointLike[]

生成二维网格坐标数组

Parameters ​

NameTypeDescription
rowsnumber行
colsnumber列

Returns ​

PointLike[]

PointLike[] 顶点坐标集合

Inherited from ​

Shape.grid

innerGrid ​

Static innerGrid(rows, cols): PointLike[]

生成二维内网格坐标数组(有内边距)

Parameters ​

NameTypeDescription
rowsnumber行
colsnumber列

Returns ​

PointLike[]

PointLike[] 顶点坐标集合

Inherited from ​

Shape.innerGrid

polygon ​

Static polygon(edgeCount): any[]

生成 正多边形 (最小为3边形，小于3边形时，按3边形处理)

Parameters ​

NameTypeDescription
edgeCountnumber边数

Returns ​

any[]

PointLike[] 顶点坐标集合

Inherited from ​

Shape.polygon