Class BezierEnt

贝塞尔曲线类表示由凸度点定义的贝塞尔曲线

Hierarchy (View Summary)

EntityBase
- BezierEnt

Constructors

constructor

new BezierEnt(bulgePointsCollection?: BulgePoints, color?: number): BezierEnt
Parameters
- bulgePointsCollection: BulgePoints = ...
- color: number = 256
Returns BezierEnt
Overrides EntityBase.constructor
- Defined in entities/BezierEnt.ts:49

Properties

type

type: string

实体类型标识符（如"LINE"、"CIRCLE"等）

getNurbsPoints

getNurbsPoints: any

controlPoints

controlPoints: any

objectId

objectId: string

DWG对象ID（句柄）- 从DWG文件导入时的唯一标识符这个值不应该在克隆时复制，新创建的实体应该为空字符串

id

id: number

实体索引ID - 从1开始递增的唯一索引用于在WebCAD格式中标识实体

_lineType

_lineType: string

_isAlive

_isAlive: boolean

isDirty

isDirty: boolean

是否处于脏状态，供渲染器增量更新

`Optional`block

block?: any

Accessors

globalWidth

get globalWidth(): number
Returns number
- Defined in entities/BezierEnt.ts:65
set globalWidth(value: number): void
Parameters
- value: number
Returns void
- Defined in entities/BezierEnt.ts:69

isClosed

get isClosed(): boolean
Returns boolean
- Defined in entities/BezierEnt.ts:74
set isClosed(value: boolean): void
Parameters
- value: boolean
Returns void
- Defined in entities/BezierEnt.ts:78

bulgePoints

get bulgePoints(): BulgePoints
Returns BulgePoints
- Defined in entities/BezierEnt.ts:83
set bulgePoints(value: BulgePoints): void
Parameters
- value: BulgePoints
Returns void
- Defined in entities/BezierEnt.ts:87

endPtIsClosed

get endPtIsClosed(): boolean
Returns boolean
- Defined in entities/BezierEnt.ts:95

startPoint

get startPoint(): Point2D
Returns Point2D
- Defined in entities/BezierEnt.ts:126

endPoint

get endPoint(): Point2D
Returns Point2D
- Defined in entities/BezierEnt.ts:131

startBulgePoint

get startBulgePoint(): BulgePoint
Returns BulgePoint
- Defined in entities/BezierEnt.ts:136

endBulgePoint

get endBulgePoint(): BulgePoint
Returns BulgePoint
- Defined in entities/BezierEnt.ts:141

length

get length(): number
Returns number
- Defined in entities/BezierEnt.ts:276

subEnts

get subEnts(): (ArcEnt | LineEnt)[]
Returns (ArcEnt | LineEnt)[]
- Defined in entities/BezierEnt.ts:286

subGeometries

get subGeometries(): (GLine | GArc)[]
获取贝塞尔曲线的轻量级几何体集合（用于几何计算和渲染）

与 subEnts 不同，此方法返回轻量级几何对象（GLine、GArc），不包含实体属性（颜色、图层等），减少内存占用和计算开销。支持缓存，通过 Engine.ENABLE_GEOMETRY_CACHE 控制。

Returns (GLine | GArc)[]
轻量级几何体数组
- Defined in entities/BezierEnt.ts:326

selfIntersect

get selfIntersect(): boolean
Returns boolean
- Defined in entities/BezierEnt.ts:471

hasBulge

get hasBulge(): boolean
Returns boolean
- Defined in entities/BezierEnt.ts:514

areaIsClosed

get areaIsClosed(): boolean
Returns boolean
- Defined in entities/BezierEnt.ts:522

area

get area(): number
Returns number
- Defined in entities/BezierEnt.ts:532

doubleArea

get doubleArea(): number
Returns number
- Defined in entities/BezierEnt.ts:543

isCCW

get isCCW(): boolean
Returns boolean
- Defined in entities/BezierEnt.ts:548

color

get color(): number
获取颜色索引

Returns number
颜色索引值（256表示"随图层"颜色）
Inherited from EntityBase.color
- Defined in entities/EntityBase.ts:116
set color(value: number): void
设置颜色索引
Parameters
- value: number
  颜色索引值（256表示"随图层"颜色）
Returns void
Inherited from EntityBase.color
- Defined in entities/EntityBase.ts:125

layerId

get layerId(): string
获取图层ID

Returns string
图层ID字符串
Inherited from EntityBase.layerId
- Defined in entities/EntityBase.ts:137
set layerId(value: string): void
设置图层ID
Parameters
- value: string
  图层ID字符串
Returns void
Inherited from EntityBase.layerId
- Defined in entities/EntityBase.ts:146

lineTypeScale

get lineTypeScale(): number
获取线型比例

Returns number
线型比例因子
Inherited from EntityBase.lineTypeScale
- Defined in entities/EntityBase.ts:158
set lineTypeScale(value: number): void
设置线型比例
Parameters
- value: number
  线型比例因子
Returns void
Inherited from EntityBase.lineTypeScale
- Defined in entities/EntityBase.ts:167

lineWeight

get lineWeight(): number
获取线宽

Returns number
线宽值（-1=ByLayer, -2=ByBlock, >=0为具体值，单位为0.01mm）
Inherited from EntityBase.lineWeight
- Defined in entities/EntityBase.ts:179
set lineWeight(value: number): void
设置线宽
Parameters
- value: number
  线宽值（-1=ByLayer, -2=ByBlock, >=0为具体值）
Returns void
Inherited from EntityBase.lineWeight
- Defined in entities/EntityBase.ts:188

transpMgr

get transpMgr(): TransparencyManager
获取透明度管理器

Returns TransparencyManager
透明度管理器实例
Inherited from EntityBase.transpMgr
- Defined in entities/EntityBase.ts:200
set transpMgr(value: TransparencyManager): void
设置透明度管理器
Parameters
- value: TransparencyManager
  透明度管理器实例
Returns void
Inherited from EntityBase.transpMgr
- Defined in entities/EntityBase.ts:209

isAlive

get isAlive(): boolean
获取实体存活状态

Returns boolean
是否存活（true表示有效，false表示已删除）
Inherited from EntityBase.isAlive
- Defined in entities/EntityBase.ts:219
set isAlive(value: boolean): void
设置实体存活状态
Parameters
- value: boolean
  是否存活
Returns void
Inherited from EntityBase.isAlive
- Defined in entities/EntityBase.ts:228

xdataRaw

get xdataRaw(): Record<string, string>
获取原始扩展数据（用于序列化）格式: { "1001": "AppName", "1000": "JSON字符串" }

Returns Record<string, string>
原始xdata对象或undefined
Inherited from EntityBase.xdataRaw
- Defined in entities/EntityBase.ts:242
set xdataRaw(value: Record<string, string>): void
设置原始扩展数据（从数据库加载时使用）
Parameters
- value: Record<string, string>
  原始xdata对象
Returns void
Inherited from EntityBase.xdataRaw
- Defined in entities/EntityBase.ts:251

extData

get extData(): Record<string, any>
获取扩展数据（用户友好格式）自动解析JSON字符串返回对象

Returns Record<string, any>
解析后的扩展数据对象，或undefined
Example
```
const data = entity.extData;
console.log(data?.sensorVal); // 10
```
Inherited from EntityBase.extData
- Defined in entities/EntityBase.ts:267

extDataAppName

get extDataAppName(): string
获取扩展数据的应用程序名（AppName）

Returns string
AppName字符串，或undefined
Inherited from EntityBase.extDataAppName
- Defined in entities/EntityBase.ts:281

doc

get doc(): any
获取所属文档

通过实体所在的块来获取文档对象。在CAD系统中，实体总是属于某个块，而块又属于某个文档。

Returns any
文档对象，如果无法获取则返回undefined
Inherited from EntityBase.doc
- Defined in entities/EntityBase.ts:337

layer

get layer(): string
获取图层名称

根据实体的layerId从文档的图层集合中查找对应的图层名称。如果找不到对应的图层，则返回默认图层"0"。

Returns string
图层名称，默认为"0"
Inherited from EntityBase.layer
- Defined in entities/EntityBase.ts:350
set layer(layerName: string): void
设置图层名称

根据图层名称查找对应的图层ID并设置给实体。如果找不到指定的图层，则使用默认图层ID（"0"）。

注意：优先使用实体所属文档的图层列表，如果实体尚未添加到文档，则使用 Engine.currentDoc 的图层列表。
Parameters
- layerName: string
  图层名称
Returns void
Inherited from EntityBase.layer
- Defined in entities/EntityBase.ts:367

lineType

get lineType(): string
获取线型

返回实体当前的线型设置。线型控制线条的显示样式（如实线、虚线、点划线等）。

Returns string
线型名称
Inherited from EntityBase.lineType
- Defined in entities/EntityBase.ts:384
set lineType(lineTypeName: string): void
设置线型

设置实体的线型，支持标准CAD线型、常见别名和自定义线型。输入的线型名称会被转换为大写进行匹配。

支持的线型：
- CONTINUOUS: 连续线（实线）
- HIDDEN/DASHED: 虚线（虚线）
- CENTER: 中心线
- PHANTOM: 幻影线
- DOT: 点线（映射为虚线）
- 自定义线型：通过LinetypeManager管理的线型
Parameters
- lineTypeName: string
  线型名称
Returns void
Inherited from EntityBase.lineType
- Defined in entities/EntityBase.ts:405

Methods

allPointsWithInBox

allPointsWithInBox(boundingBox: BoundingBox): boolean
Parameters
- boundingBox: BoundingBox
Returns boolean
- Defined in entities/BezierEnt.ts:102

reverse

reverse(): void
Returns void
- Defined in entities/BezierEnt.ts:114

getRawBulgePoints

getRawBulgePoints(): BulgePoint[]
Returns BulgePoint[]
- Defined in entities/BezierEnt.ts:149

setClosed

setClosed(isClosed: boolean): void
Parameters
- isClosed: boolean
Returns void
- Defined in entities/BezierEnt.ts:154

mirror

mirror(mirrorAxisStart: PointInput, mirrorAxisEnd: PointInput): void
镜像变换（基类默认实现为空，子类应重写）
Parameters
- mirrorAxisStart: PointInput
  镜像轴起点，支持 Point2D 或数组 [x, y]
- mirrorAxisEnd: PointInput
  镜像轴终点，支持 Point2D 或数组 [x, y]
Returns void
Overrides EntityBase.mirror
- Defined in entities/BezierEnt.ts:160

move

move(fromPoint: PointInput, toPoint: PointInput): void
Parameters
- fromPoint: PointInput
- toPoint: PointInput
Returns void
- Defined in entities/BezierEnt.ts:182

rotate

rotate(rotationCenter: PointInput, rotationAngle: number): void
Parameters
- rotationCenter: PointInput
- rotationAngle: number
Returns void
- Defined in entities/BezierEnt.ts:201

scale

scale(scaleCenter: PointInput, scaleFactor: number): void
Parameters
- scaleCenter: PointInput
- scaleFactor: number
Returns void
- Defined in entities/BezierEnt.ts:222

stretch

stretch(
    stretchFromPoint: PointInput,
    stretchToPoint: PointInput,
    stretchBox: BoundingBox,
): void
Parameters
- stretchFromPoint: PointInput
- stretchToPoint: PointInput
- stretchBox: BoundingBox
Returns void
- Defined in entities/BezierEnt.ts:240

repairStretch

repairStretch(backupData: BezierEnt): void
Parameters
- backupData: BezierEnt
Returns void
- Defined in entities/BezierEnt.ts:271

clearGeometryCache

clearGeometryCache(): void
清除几何缓存

Returns void
- Defined in entities/BezierEnt.ts:366

setModified

setModified(): void
重写 setModified 以清除几何缓存

Returns void
Overrides EntityBase.setModified
- Defined in entities/BezierEnt.ts:373

boundingBox

boundingBox(coordinateSystemType?: CoordinateSystemType): BoundingBox
Parameters
- coordinateSystemType: CoordinateSystemType = CoordinateSystemType.WCS
Returns BoundingBox
- Defined in entities/BezierEnt.ts:379

getSubEnts

getSubEnts(): (ArcEnt | LineEnt)[]
Returns (ArcEnt | LineEnt)[]
- Defined in entities/BezierEnt.ts:427

getEnts_Ext

getEnts_Ext(): (ArcEnt | LineEnt | RayEnt | CircleEnt)[]
Returns (ArcEnt | LineEnt | RayEnt | CircleEnt)[]
- Defined in entities/BezierEnt.ts:432

getEnts_AsNotZero

getEnts_AsNotZero(): (ArcEnt | LineEnt)[]
Returns (ArcEnt | LineEnt)[]
- Defined in entities/BezierEnt.ts:459

trimFrontAtDist

trimFrontAtDist(trimDistance: number): void
Parameters
- trimDistance: number
Returns void
- Defined in entities/BezierEnt.ts:553

trimBackAtDist

trimBackAtDist(trimDistance: number): void
Parameters
- trimDistance: number
Returns void
- Defined in entities/BezierEnt.ts:592

gripEdit

gripEdit(newPosition: Point2D, gripIndex: string): void
Parameters
- newPosition: Point2D
- gripIndex: string
Returns void
- Defined in entities/BezierEnt.ts:633

gripEdit_Mid

gripEdit_Mid(newMidPoint: Point2D, segmentIndex: string): void
Parameters
- newMidPoint: Point2D
- segmentIndex: string
Returns void
- Defined in entities/BezierEnt.ts:640

undoMap

undoMap(undoData: BezierEnt): void
Parameters
- undoData: BezierEnt
Returns void
- Defined in entities/BezierEnt.ts:689

clone

clone(): BezierEnt
Returns BezierEnt
- Defined in entities/BezierEnt.ts:697

toDb

toDb(): DbPline
Returns DbPline
- Defined in entities/BezierEnt.ts:723

fromDb

fromDb(dbData: any): void
Parameters
- dbData: any
Returns void
- Defined in entities/BezierEnt.ts:734

setExtData

setExtData(appName: string, data: Record<string, any>): void
设置扩展数据（用户友好格式）自动将对象序列化为JSON字符串存储
Parameters
- appName: string
  应用程序名（用于在DWG中标识数据来源）
- data: Record<string, any>
  要存储的数据对象（将被序列化为JSON）
Returns void
Example
```
entity.setExtData("MY_SENSOR", {
  sensorVal: 10,
  deviceName: "温度传感器",
  isActive: true
});
```
Inherited from EntityBase.setExtData
- Defined in entities/EntityBase.ts:300

clearExtData

clearExtData(): void
清除扩展数据

Returns void
Inherited from EntityBase.clearExtData
- Defined in entities/EntityBase.ts:312

hasExtData

hasExtData(): boolean
检查是否有扩展数据

Returns boolean
是否存在扩展数据
Inherited from EntityBase.hasExtData
- Defined in entities/EntityBase.ts:322

fromDefaultProps

fromDefaultProps(defaultPropsObject: any): this
从默认属性对象复制属性

将指定的默认属性对象的所有相关属性复制到当前实体。这通常用于创建新实体时应用默认设置。
Parameters
- defaultPropsObject: any
  默认属性对象，包含layer、colorIndex、lineType等属性
Returns this
当前实例（支持链式调用）
Inherited from EntityBase.fromDefaultProps
- Defined in entities/EntityBase.ts:469

setDefaults

setDefaults(): void
设置为系统默认值

从全局CAD系统设置中获取当前的默认属性值并应用到实体。这些默认值包括当前图层、当前颜色、当前线型等。

使用的全局变量：
- Engine.currentDoc.CLAYER: 当前图层名称
- Engine.CECOLOR: 当前实体颜色
- Engine.CELTYPE: 当前实体线型
- Engine.CELTSCALE: 当前实体线型比例
Returns void
Inherited from EntityBase.setDefaults
- Defined in entities/EntityBase.ts:531

fromDbDefaultProps

fromDbDefaultProps(dbPropsObject: any): this
从数据库默认属性对象设置属性

从数据库查询结果或序列化数据中恢复实体属性。这个方法处理数据库中可能存在的空值和默认值情况。
Parameters
- dbPropsObject: any
  数据库属性对象，包含layerId、colorIndex等属性
Returns this
当前实例（支持链式调用）
Inherited from EntityBase.fromDbDefaultProps
- Defined in entities/EntityBase.ts:551

mapToDbDefaultProps

mapToDbDefaultProps(targetDbObject: any): any
将属性映射到数据库默认属性对象

将当前实体的属性映射到数据库存储格式的对象中。用于保存实体数据到数据库或序列化。
Parameters
- targetDbObject: any
  目标数据库属性对象
Returns any
映射后的属性对象
Inherited from EntityBase.mapToDbDefaultProps
- Defined in entities/EntityBase.ts:609

dispose

dispose(): void
释放实体占用的外部资源子类如持有 PIXI 对象或大尺寸缓冲，应覆盖此方法清理

Returns void
Inherited from EntityBase.dispose
- Defined in entities/EntityBase.ts:671

Class BezierEnt

Hierarchy (View Summary)

Index

Constructors

Properties

Accessors

Methods

Constructors

constructor

Parameters

Returns BezierEnt

Properties

type

getNurbsPoints

controlPoints

objectId

id

_lineType

_isAlive

isDirty

Optionalblock

Accessors

globalWidth

Returns number

Parameters

Returns void

isClosed

Returns boolean

Parameters

Returns void

bulgePoints

Returns BulgePoints

Parameters

Returns void

endPtIsClosed

Returns boolean

startPoint

Returns Point2D

endPoint

Returns Point2D

startBulgePoint

Returns BulgePoint

endBulgePoint

Returns BulgePoint

length

Returns number

subEnts

Returns (ArcEnt | LineEnt)[]

subGeometries

Returns (GLine | GArc)[]

selfIntersect

Returns boolean

hasBulge

Returns boolean

areaIsClosed

Returns boolean

area

Returns number

doubleArea

Returns number

isCCW

Returns boolean

color

Returns number

Parameters

Returns void

layerId

Returns string

Parameters

Returns void

lineTypeScale

Returns number

Parameters

Returns void

lineWeight

Returns number

Parameters

Returns void

transpMgr

Returns TransparencyManager

`Optional`block