Class MLeaderEnt

多重引线实体 (MLeader)

用于创建带有引线的标注，可以包含文字或块内容。

创建示例

import { MLeaderEnt, Point2D, MLeaderContentType, LeaderType } from 'webcad-lib-ts';

// 创建带MText内容的多重引线
const mleader = new MLeaderEnt();
mleader.contentType = MLeaderContentType.MText;
mleader.textContent = "示例文字";
mleader.textPosition = new Point2D(100, 100);

// 添加引线
mleader.addLeaderLine(new Point2D(0, 0)); // 箭头位置

Hierarchy (View Summary)

CustomEntityBase
- MLeaderEnt

Implements

IEntityReactor

Index

Constructors

constructor

new MLeaderEnt(): MLeaderEnt
构造函数

Returns MLeaderEnt
Overrides CustomEntityBase.constructor
- Defined in entities_custom/MLeaderEnt.ts:437

Properties

`Readonly`type

type: string = "CUSTOM"

实体类型标识（固定为 "CUSTOM"）

`Protected`_nestEntsCache

_nestEntsCache: EntityBase[] = null

嵌套实体缓存用于避免重复生成嵌套实体，提高渲染性能

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

`Readonly`customType

customType: string = 'MLEADER'

自定义实体类型标识

`Readonly`customDisplayName

customDisplayName: string = '多重引线'

自定义实体显示名称

`Protected`_ownerRefs

_ownerRefs: OwnerReference[] = []

关联的源实体引用（箭头点捕捉到的实体）

`Protected`_reactorDirty

_reactorDirty: boolean = false

反应器是否脏（需要更新）

`Protected`_reactorRegistered

_reactorRegistered: boolean = false

是否已注册反应器

Accessors

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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.lineType
- Defined in entities/EntityBase.ts:405

contentType

get contentType(): MLeaderContentType
Returns MLeaderContentType
- Defined in entities_custom/MLeaderEnt.ts:444
set contentType(value: MLeaderContentType): void
Parameters
- value: MLeaderContentType
Returns void
- Defined in entities_custom/MLeaderEnt.ts:448

leaderType

get leaderType(): LeaderType
Returns LeaderType
- Defined in entities_custom/MLeaderEnt.ts:453
set leaderType(value: LeaderType): void
Parameters
- value: LeaderType
Returns void
- Defined in entities_custom/MLeaderEnt.ts:457

textContent

get textContent(): string
Returns string
- Defined in entities_custom/MLeaderEnt.ts:464
set textContent(value: string): void
Parameters
- value: string
Returns void
- Defined in entities_custom/MLeaderEnt.ts:468

textPosition

get textPosition(): Point2D
Returns Point2D
- Defined in entities_custom/MLeaderEnt.ts:473
set textPosition(value: Point2D): void
Parameters
- value: Point2D
Returns void
- Defined in entities_custom/MLeaderEnt.ts:477

textHeight

get textHeight(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:482
set textHeight(value: number): void
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:486

textRotation

get textRotation(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:491
set textRotation(value: number): void
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:495

enableFrameText

get enableFrameText(): boolean
Returns boolean
- Defined in entities_custom/MLeaderEnt.ts:500
set enableFrameText(value: boolean): void
Parameters
- value: boolean
Returns void
- Defined in entities_custom/MLeaderEnt.ts:504

blockId

get blockId(): string
Returns string
- Defined in entities_custom/MLeaderEnt.ts:511
set blockId(value: string): void
Parameters
- value: string
Returns void
- Defined in entities_custom/MLeaderEnt.ts:515

blockPosition

get blockPosition(): Point2D
Returns Point2D
- Defined in entities_custom/MLeaderEnt.ts:520
set blockPosition(value: Point2D): void
Parameters
- value: Point2D
Returns void
- Defined in entities_custom/MLeaderEnt.ts:524

blockScale

get blockScale(): { x: number; y: number; z: number }
Returns { x: number; y: number; z: number }
- Defined in entities_custom/MLeaderEnt.ts:529
set blockScale(value: { x: number; y: number; z: number }): void
Parameters
- value: { x: number; y: number; z: number }
Returns void
- Defined in entities_custom/MLeaderEnt.ts:533

blockRotation

get blockRotation(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:538
set blockRotation(value: number): void
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:542

enableLanding

get enableLanding(): boolean
Returns boolean
- Defined in entities_custom/MLeaderEnt.ts:549
set enableLanding(value: boolean): void
Parameters
- value: boolean
Returns void
- Defined in entities_custom/MLeaderEnt.ts:553

landingGap

get landingGap(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:558
set landingGap(value: number): void
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:562

enableLandingLine

get enableLandingLine(): boolean
是否启用着陆段线条

Returns boolean
- Defined in entities_custom/MLeaderEnt.ts:568
set enableLandingLine(value: boolean): void
Parameters
- value: boolean
Returns void
- Defined in entities_custom/MLeaderEnt.ts:572

landingLength

get landingLength(): number
着陆段长度（水平连接段的长度）

Returns number
- Defined in entities_custom/MLeaderEnt.ts:578
set landingLength(value: number): void
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:582

arrowType

get arrowType(): DimensionArrowType
Returns DimensionArrowType
- Defined in entities_custom/MLeaderEnt.ts:587
set arrowType(value: DimensionArrowType): void
Parameters
- value: DimensionArrowType
Returns void
- Defined in entities_custom/MLeaderEnt.ts:591

arrowSize

get arrowSize(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:596
set arrowSize(value: number): void
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:600

leaderLineColor

get leaderLineColor(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:605
set leaderLineColor(value: number): void
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:609

leaderLineWeight

get leaderLineWeight(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:614
set leaderLineWeight(value: number): void
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:618

overallScale

get overallScale(): number
获取整体缩放因子

Returns number
- Defined in entities_custom/MLeaderEnt.ts:624
set overallScale(value: number): void
设置整体缩放因子
Parameters
- value: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:629

style

get style(): DimensionStyle
Returns DimensionStyle
- Defined in entities_custom/MLeaderEnt.ts:634
set style(value: DimensionStyle): void
Parameters
- value: DimensionStyle
Returns void
- Defined in entities_custom/MLeaderEnt.ts:638

isAssociative

get isAssociative(): boolean
是否有关联的源实体

Returns boolean
- Defined in entities_custom/MLeaderEnt.ts:1619

Methods

explode

explode(): EntityBase[]
炸开实体

将自定义实体分解为基本图元（线、圆弧等）。用于分解命令和DXF导出。

子类可以重写此方法以提供自定义的炸开逻辑。如果不重写，默认使用 getNestEnts() 返回的实体进行炸开。

Returns EntityBase[]
炸开后的基本实体数组
Example
```
explode(): EntityBase[] {
  const line1 = new LineEnt(this.point1, this.point2);
  const arc = new ArcEnt(this.center, this.radius, this.startAng, this.endAng);
  return [line1, arc];
}
```
Inherited from CustomEntityBase.explode
- Defined in entities/CustomEntityBase.ts:244

getNestEnts

getNestEnts(): EntityBase[]
获取嵌套实体（带缓存）

返回组成该自定义实体的子实体，用于渲染显示。

缓存机制
此方法使用内部缓存来避免重复生成嵌套实体，提高渲染性能：
- 如果缓存有效，直接返回缓存的实体数组
- 如果缓存无效（为 null），调用 buildNestEnts() 生成新实体并缓存
- 当实体被修改（调用 setModified()）时，缓存自动清除
子类如需重写此方法（如需支持额外参数），应注意正确处理缓存逻辑。
Returns EntityBase[]
嵌套实体数组
Inherited from CustomEntityBase.getNestEnts
- Defined in entities/CustomEntityBase.ts:308

`Protected`clearNestEntsCache

clearNestEntsCache(): void
清除嵌套实体缓存

在需要强制重新生成嵌套实体时调用。通常在setModified时会自动调用。

Returns void
Inherited from CustomEntityBase.clearNestEntsCache
- Defined in entities/CustomEntityBase.ts:325

boundingBox

boundingBox(coordinateSystemType?: CoordinateSystemType): BoundingBox
计算边界框

默认实现：根据 getNestEnts() 返回的子实体计算合并边界框。子类可以重写此方法以提供自定义的边界框计算逻辑。
Parameters
- coordinateSystemType: CoordinateSystemType = CoordinateSystemType.WCS
  坐标系类型
Returns BoundingBox
边界框
Inherited from CustomEntityBase.boundingBox
- Defined in entities/CustomEntityBase.ts:338

mapToDbDefaultProps

mapToDbDefaultProps(targetDbObject: any): any
将属性映射到数据库默认属性对象（重写父类方法）

除了调用父类的基础属性映射外，还会序列化嵌套实体用于DWG导出。
Parameters
- targetDbObject: any
  目标数据库属性对象
Returns any
映射后的属性对象
Inherited from CustomEntityBase.mapToDbDefaultProps
- Defined in entities/CustomEntityBase.ts:393

getDisplayName

getDisplayName(maxLength?: number): string
获取属性面板显示名称

返回在属性面板中显示的实体名称。超过指定长度的内容将被截断并显示"..."
Parameters
- maxLength: number = 20
  最大显示长度，默认为20
Returns string
显示名称
Inherited from CustomEntityBase.getDisplayName
- Defined in entities/CustomEntityBase.ts:491

allPointsWithInBox

allPointsWithInBox(box: BoundingBox): boolean
检查所有关键点是否在边界框内
Parameters
- box: BoundingBox
  边界框
Returns boolean
是否所有点都在边界框内
Inherited from CustomEntityBase.allPointsWithInBox
- Defined in entities/CustomEntityBase.ts:529

undoMap

undoMap(backup: CustomEntityBase): void
撤销映射

从备份对象恢复实体状态。
Parameters
- backup: CustomEntityBase
  备份的实体对象
Returns void
Inherited from CustomEntityBase.undoMap
- Defined in entities/CustomEntityBase.ts:547

repairStretch

repairStretch(backup: CustomEntityBase): void
修复拉伸
Parameters
- backup: CustomEntityBase
  备份的实体对象
Returns void
Inherited from CustomEntityBase.repairStretch
- Defined in entities/CustomEntityBase.ts:557

setModified

setModified(): void
标记实体已修改

重写父类方法，在标记修改时同时清除嵌套实体缓存。

Returns void
Inherited from CustomEntityBase.setModified
- Defined in entities/CustomEntityBase.ts:570

stretch

stretch(
    fromPoint: PointInput,
    toPoint: PointInput,
    stretchBox: BoundingBox,
): void
拉伸变换
Parameters
- fromPoint: PointInput
  拉伸起点
- toPoint: PointInput
  拉伸终点
- stretchBox: BoundingBox
  拉伸框
Returns void
Inherited from CustomEntityBase.stretch
- Defined in entities/CustomEntityBase.ts:630

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 CustomEntityBase.setExtData
- Defined in entities/EntityBase.ts:300

clearExtData

clearExtData(): void
清除扩展数据

Returns void
Inherited from CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.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 CustomEntityBase.fromDbDefaultProps
- Defined in entities/EntityBase.ts:551

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 CustomEntityBase.dispose
- Defined in entities/EntityBase.ts:671

getScaledArrowSize

getScaledArrowSize(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:645

getScaledTextHeight

getScaledTextHeight(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:649

getScaledLandingLength

getScaledLandingLength(): number
获取缩放后的着陆段长度

Returns number
- Defined in entities_custom/MLeaderEnt.ts:654

getScaledLandingGap

getScaledLandingGap(): number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:658

getLeaderIndexes

getLeaderIndexes(): number[]
获取所有引线集群索引

Returns number[]
- Defined in entities_custom/MLeaderEnt.ts:667

addLeader

addLeader(): number
添加引线集群

Returns number
新添加的引线集群索引
- Defined in entities_custom/MLeaderEnt.ts:675

removeLeader

removeLeader(leaderIndex: number): void
移除引线集群
Parameters
- leaderIndex: number
  要移除的引线集群索引
Returns void
- Defined in entities_custom/MLeaderEnt.ts:686

getLeaderLineIndexes

getLeaderLineIndexes(): number[]
获取所有引线线条索引

Returns number[]
- Defined in entities_custom/MLeaderEnt.ts:694

getLeaderLineIndexesByLeader

getLeaderLineIndexesByLeader(leaderIndex: number): number[]
获取指定引线集群的引线线条索引
Parameters
- leaderIndex: number
Returns number[]
- Defined in entities_custom/MLeaderEnt.ts:705

addLeaderLineToLeader

addLeaderLineToLeader(leaderIndex: number): number
添加引线线条到指定引线集群
Parameters
- leaderIndex: number
  引线集群索引
Returns number
新添加的引线线条索引
- Defined in entities_custom/MLeaderEnt.ts:715

addLeaderLine

addLeaderLine(firstPoint: Point2D): number
添加引线线条（自动创建引线集群）
Parameters
- firstPoint: Point2D
  引线起点（箭头位置）
Returns number
引线线条索引
- Defined in entities_custom/MLeaderEnt.ts:730

removeLeaderLine

removeLeaderLine(leaderLineIndex: number): void
移除引线线条
Parameters
- leaderLineIndex: number
  引线线条索引
Returns void
- Defined in entities_custom/MLeaderEnt.ts:748

getLeaderByLineIndex

getLeaderByLineIndex(leaderLineIndex: number): number
获取引线线条所属的引线集群
Parameters
- leaderLineIndex: number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:777

setFirstVertex

setFirstVertex(leaderLineIndex: number, point: Point2D): void
设置引线线条的第一个顶点
Parameters
- leaderLineIndex: number
- point: Point2D
Returns void
- Defined in entities_custom/MLeaderEnt.ts:791

getFirstVertex

getFirstVertex(leaderLineIndex: number): Point2D
获取引线线条的第一个顶点
Parameters
- leaderLineIndex: number
Returns Point2D
- Defined in entities_custom/MLeaderEnt.ts:802

setLastVertex

setLastVertex(leaderLineIndex: number, point: Point2D): void
设置引线线条的最后一个顶点
Parameters
- leaderLineIndex: number
- point: Point2D
Returns void
- Defined in entities_custom/MLeaderEnt.ts:810

getLastVertex

getLastVertex(leaderLineIndex: number): Point2D
获取引线线条的最后一个顶点
Parameters
- leaderLineIndex: number
Returns Point2D
- Defined in entities_custom/MLeaderEnt.ts:821

addLastVertex

addLastVertex(leaderLineIndex: number, point: Point2D): void
添加顶点到引线线条末尾
Parameters
- leaderLineIndex: number
- point: Point2D
Returns void
- Defined in entities_custom/MLeaderEnt.ts:829

numVertices

numVertices(leaderLineIndex: number): number
获取引线线条的顶点数量
Parameters
- leaderLineIndex: number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:840

getVertex

getVertex(leaderLineIndex: number, index: number): Point2D
获取指定顶点
Parameters
- leaderLineIndex: number
- index: number
Returns Point2D
- Defined in entities_custom/MLeaderEnt.ts:848

setVertex

setVertex(leaderLineIndex: number, index: number, point: Point2D): void
设置指定顶点
Parameters
- leaderLineIndex: number
- index: number
- point: Point2D
Returns void
- Defined in entities_custom/MLeaderEnt.ts:859

setLandingDirection

setLandingDirection(leaderIndex: number, direction: Point2D): void
设置基线方向
Parameters
- leaderIndex: number
- direction: Point2D
Returns void
- Defined in entities_custom/MLeaderEnt.ts:872

getLandingDirection

getLandingDirection(leaderIndex: number): Point2D
获取基线方向
Parameters
- leaderIndex: number
Returns Point2D
- Defined in entities_custom/MLeaderEnt.ts:883

setLeaderLandingLength

setLeaderLandingLength(leaderIndex: number, length: number): void
设置指定引线集群的基线长度
Parameters
- leaderIndex: number
- length: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:891

getLeaderLandingLength

getLeaderLandingLength(leaderIndex: number): number
获取指定引线集群的基线长度
Parameters
- leaderIndex: number
Returns number
- Defined in entities_custom/MLeaderEnt.ts:902

getContentPosition

getContentPosition(): Point2D
获取内容位置

Returns Point2D
- Defined in entities_custom/MLeaderEnt.ts:936

setContentPosition

setContentPosition(position: Point2D): void
设置内容位置
Parameters
- position: Point2D
Returns void
- Defined in entities_custom/MLeaderEnt.ts:948

getConnectionPoint

getConnectionPoint(leaderIndex: number): Point2D
获取连接点（基线与内容的连接位置）
Parameters
- leaderIndex: number
Returns Point2D
- Defined in entities_custom/MLeaderEnt.ts:960

applyCurrentDocStyle

applyCurrentDocStyle(): void
从当前文档应用样式

Returns void
- Defined in entities_custom/MLeaderEnt.ts:1010

getPropertyInfo

getPropertyInfo(): PropertyInfo[]
获取属性面板信息

Returns PropertyInfo[]
Overrides CustomEntityBase.getPropertyInfo
- Defined in entities_custom/MLeaderEnt.ts:1107

getSnapPoints

getSnapPoints(): SnapPointResult[]
获取捕捉点

Returns SnapPointResult[]
Overrides CustomEntityBase.getSnapPoints
- Defined in entities_custom/MLeaderEnt.ts:1253

getGripPoints

getGripPoints(): GripPointResult[]
获取夹点

Returns GripPointResult[]
Overrides CustomEntityBase.getGripPoints
- Defined in entities_custom/MLeaderEnt.ts:1282

`Protected`buildNestEnts

buildNestEnts(): EntityBase[]
构建嵌套实体（用于渲染）

Returns EntityBase[]
Overrides CustomEntityBase.buildNestEnts
- Defined in entities_custom/MLeaderEnt.ts:1313

getOwnerIds

getOwnerIds(): number[]
获取关联的Owner实体ID列表

Returns number[]
Implementation of IEntityReactor.getOwnerIds
- Defined in entities_custom/MLeaderEnt.ts:1487

onOwnerChanged

onOwnerChanged(args: ReactorEventArgs): void
当Owner实体发生变化时的回调
Parameters
- args: ReactorEventArgs
Returns void
Implementation of IEntityReactor.onOwnerChanged
- Defined in entities_custom/MLeaderEnt.ts:1494

updateFromOwners

updateFromOwners(): boolean
从源实体更新箭头位置

Returns boolean
是否成功更新
Implementation of IEntityReactor.updateFromOwners
- Defined in entities_custom/MLeaderEnt.ts:1513

setReactorDirty

setReactorDirty(): void
标记反应器脏

Returns void
Implementation of IEntityReactor.setReactorDirty
- Defined in entities_custom/MLeaderEnt.ts:1575

isReactorDirty

isReactorDirty(): boolean
检查反应器是否处于脏状态

Returns boolean
Implementation of IEntityReactor.isReactorDirty
- Defined in entities_custom/MLeaderEnt.ts:1582

unlinkAllOwners

unlinkAllOwners(): void
断开所有Owner关联

Returns void
Implementation of IEntityReactor.unlinkAllOwners
- Defined in entities_custom/MLeaderEnt.ts:1589

tryRegisterReactor

tryRegisterReactor(): boolean
尝试重新注册反应器（在添加到文档后调用）

Returns boolean
Implementation of IEntityReactor.tryRegisterReactor
- Defined in entities_custom/MLeaderEnt.ts:1601

getSourceEntityRefs

getSourceEntityRefs(): OwnerReference[]
获取源实体引用

Returns OwnerReference[]
- Defined in entities_custom/MLeaderEnt.ts:1626

`Protected`findOwnerEntity

findOwnerEntity(ref: OwnerReference): EntityBase
查找Owner实体
Parameters
- ref: OwnerReference
Returns EntityBase
- Defined in entities_custom/MLeaderEnt.ts:1633

setArrowSourceEntity

setArrowSourceEntity(
    leaderLineIndex: number,
    entityId: number,
    segmentIndex?: number,
    pointType?: string,
    parameterT?: number,
    pointAngle?: number,
): void
设置箭头点的源实体关联
Parameters
- leaderLineIndex: number
  引线线条索引
- entityId: number
  源实体ID
- OptionalsegmentIndex: number
  线段索引（多段线）
- OptionalpointType: string
  点类型（start/end/midpoint/nearest）
- OptionalparameterT: number
  参数T值（用于精确定位曲线上的点）
- OptionalpointAngle: number
  点角度（用于圆/弧）
Returns void
- Defined in entities_custom/MLeaderEnt.ts:1735

clearArrowSourceEntity

clearArrowSourceEntity(leaderLineIndex: number): void
清除指定引线线条的源实体关联
Parameters
- leaderLineIndex: number
Returns void
- Defined in entities_custom/MLeaderEnt.ts:1778

clone

clone(): MLeaderEnt
克隆

Returns MLeaderEnt
Overrides CustomEntityBase.clone
- Defined in entities_custom/MLeaderEnt.ts:1791

getEntityData

getEntityData(): MLeaderData
获取自定义实体数据

Returns MLeaderData
Overrides CustomEntityBase.getEntityData
- Defined in entities_custom/MLeaderEnt.ts:1836

setEntityData

setEntityData(data: MLeaderData): void
设置自定义实体数据
Parameters
- data: MLeaderData
Returns void
Overrides CustomEntityBase.setEntityData
- Defined in entities_custom/MLeaderEnt.ts:1882

toDb

toDb(): CustomEntityDbData
转换为数据库格式

Returns CustomEntityDbData
Overrides CustomEntityBase.toDb
- Defined in entities_custom/MLeaderEnt.ts:1984

fromDb

fromDb(dbData: CustomEntityDbData): void
从数据库格式恢复
Parameters
- dbData: CustomEntityDbData
Returns void
Overrides CustomEntityBase.fromDb
- Defined in entities_custom/MLeaderEnt.ts:1997

move

move(fromPoint: Point2D, toPoint: Point2D): void
移动变换

默认实现：移动所有夹点。子类可重写以实现自定义移动逻辑。
Parameters
- fromPoint: Point2D
  起始点
- toPoint: Point2D
  目标点
Returns void
Overrides CustomEntityBase.move
- Defined in entities_custom/MLeaderEnt.ts:2007

rotate

rotate(centerPoint: Point2D, angle: number): void
旋转变换
Parameters
- centerPoint: Point2D
  旋转中心
- angle: number
  旋转角度（弧度）
Returns void
Overrides CustomEntityBase.rotate
- Defined in entities_custom/MLeaderEnt.ts:2032

scale

scale(centerPoint: Point2D, factor: number): void
缩放变换
Parameters
- centerPoint: Point2D
  缩放中心
- factor: number
  缩放因子
Returns void
Overrides CustomEntityBase.scale
- Defined in entities_custom/MLeaderEnt.ts:2061

mirror

mirror(mirrorAxisStart: Point2D, mirrorAxisEnd: Point2D): void
镜像变换
Parameters
- mirrorAxisStart: Point2D
  镜像轴起点
- mirrorAxisEnd: Point2D
  镜像轴终点
Returns void
Overrides CustomEntityBase.mirror
- Defined in entities_custom/MLeaderEnt.ts:2089

gripEdit

gripEdit(newPosition: Point2D, gripId: string): void
夹点编辑

响应夹点拖拽操作。子类应根据gripId识别不同的夹点。
Parameters
- newPosition: Point2D
  新的夹点位置
- gripId: string
  夹点标识符
Returns void
Overrides CustomEntityBase.gripEdit
- Defined in entities_custom/MLeaderEnt.ts:2114

Class MLeaderEnt

创建示例

Hierarchy (View Summary)

Implements

Index

Constructors

Properties

Accessors

Methods

Constructors

constructor

Returns MLeaderEnt

Properties

Readonlytype

Protected_nestEntsCache

objectId

id

_lineType

_isAlive

isDirty

Optionalblock

ReadonlycustomType

ReadonlycustomDisplayName

Protected_ownerRefs

Protected_reactorDirty

Protected_reactorRegistered

Accessors

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

Parameters

Returns void

isAlive

Returns boolean

Parameters

Returns void

xdataRaw

Returns Record<string, string>

Parameters

Returns void

extData

Returns Record<string, any>

Example

extDataAppName

Returns string

doc

Returns any

layer

Returns string

Parameters

Returns void

lineType

Returns string

Parameters

Returns void

contentType

Returns MLeaderContentType

Parameters

Returns void

leaderType

Returns LeaderType

Parameters

Returns void

textContent

Returns string

`Readonly`type

`Protected`_nestEntsCache

`Optional`block

`Readonly`customType

`Readonly`customDisplayName

`Protected`_ownerRefs

`Protected`_reactorDirty

`Protected`_reactorRegistered