Class TileScheduler

瓦片加载调度器

Index

Constructors

Accessors

queueLength loadingCount maxConcurrent

Methods

setEvents schedule scheduleBatch cancel cancelAll cancelExcept isScheduled isLoading getStatus destroy createRequest

Constructors

constructor

new TileScheduler(
    cache: TileCache,
    maxConcurrent?: number,
    events?: TileSchedulerEvents,
): TileScheduler
构造函数
Parameters
- cache: TileCache
  瓦片缓存
- maxConcurrent: number = 6
  最大并发请求数，默认6
- Optionalevents: TileSchedulerEvents
  事件回调
Returns TileScheduler
- Defined in tile/TileScheduler.ts:41

Accessors

queueLength

get queueLength(): number
获取队列长度

Returns number
- Defined in tile/TileScheduler.ts:58

loadingCount

get loadingCount(): number
获取正在加载的数量

Returns number
- Defined in tile/TileScheduler.ts:63

maxConcurrent

get maxConcurrent(): number
获取最大并发数

Returns number
- Defined in tile/TileScheduler.ts:68
set maxConcurrent(value: number): void
设置最大并发数
Parameters
- value: number
Returns void
- Defined in tile/TileScheduler.ts:73

Methods

setEvents

setEvents(events: TileSchedulerEvents): void
设置事件回调
Parameters
- events: TileSchedulerEvents
Returns void
- Defined in tile/TileScheduler.ts:80

schedule

schedule(request: TileRequest): void
添加瓦片到加载队列
Parameters
- request: TileRequest
  瓦片请求
Returns void
- Defined in tile/TileScheduler.ts:88

scheduleBatch

scheduleBatch(requests: TileRequest[], viewCenter?: Point2D): void
批量调度瓦片（按距离视图中心排序优先级）
Parameters
- requests: TileRequest[]
  请求数组
- OptionalviewCenter: Point2D
  视图中心（WCS）
Returns void
- Defined in tile/TileScheduler.ts:122

cancel

cancel(key: string): void
取消指定瓦片的加载
Parameters
- key: string
  瓦片key
Returns void
- Defined in tile/TileScheduler.ts:132

cancelAll

cancelAll(): void
取消所有加载请求

Returns void
- Defined in tile/TileScheduler.ts:157

cancelExcept

cancelExcept(keysToKeep: Set<string>): void
取消不在指定key列表中的所有请求
Parameters
- keysToKeep: Set<string>
  需要保留的key列表
Returns void
- Defined in tile/TileScheduler.ts:178

isScheduled

isScheduled(key: string): boolean
检查瓦片是否在队列中
Parameters
- key: string
  瓦片key
Returns boolean
- Defined in tile/TileScheduler.ts:206

isLoading

isLoading(key: string): boolean
检查瓦片是否正在加载
Parameters
- key: string
  瓦片key
Returns boolean
- Defined in tile/TileScheduler.ts:214

getStatus

getStatus(): { queued: number; loading: number; maxConcurrent: number }
获取调度器状态

Returns { queued: number; loading: number; maxConcurrent: number }
- Defined in tile/TileScheduler.ts:221

destroy

destroy(): void
销毁调度器

Returns void
- Defined in tile/TileScheduler.ts:348

`Static`createRequest

createRequest(
    coord: TileCoord,
    url: string,
    priority?: number,
    callbacks?: {
        onLoaded?: (texture: Texture) => void;
        onError?: (error: Error) => void;
        onCancelled?: () => void;
    },
): TileRequest
静态方法：创建瓦片请求
Parameters
- coord: TileCoord
- url: string
- priority: number = 0
- Optionalcallbacks: {
      onLoaded?: (texture: Texture) => void;
      onError?: (error: Error) => void;
      onCancelled?: () => void;
  }
Returns TileRequest
- Defined in tile/TileScheduler.ts:359