Class: TileID ¶

Table of contents ¶

Constructors ¶

constructor

Properties ¶

Methods ¶

Constructors ¶

constructor ¶

• new TileID(overscaledZ, wrap, z, x, y, options?): TileID

Parameters ¶

Name	Type	Description
`overscaledZ`	`number`	扩大的 z 值
`wrap`	`undefined` \| `number`	所处世界
`z`	`number`	层级
`x`	`number`	列
`y`	`number`	行
`options?`	`TileIDOptions`	瓦片其他配置

Returns ¶

TileID

Defined in ¶

gl-core/dist/index.d.ts:261

Properties ¶

x ¶

• x: number

瓦片列

Defined in ¶

gl-core/dist/index.d.ts:207

wrapedX ¶

• wrapedX: number

跨世界后的瓦片列

Defined in ¶

gl-core/dist/index.d.ts:211

y ¶

• y: number

瓦片行

Defined in ¶

gl-core/dist/index.d.ts:215

wrapedY ¶

• wrapedY: number

跨世界后的瓦片行（目前仅 maptalks 支持）

Defined in ¶

gl-core/dist/index.d.ts:219

z ¶

• z: number

瓦片层级

Defined in ¶

gl-core/dist/index.d.ts:223

wrap ¶

• wrap: number

所在世界（如果是多世界的话）

Defined in ¶

gl-core/dist/index.d.ts:227

overscaledZ ¶

• overscaledZ: number

放大后的 zoom 值

Defined in ¶

gl-core/dist/index.d.ts:231

tileKey ¶

• tileKey: string

瓦片唯一标识

Defined in ¶

gl-core/dist/index.d.ts:235

unWrappedTileKey ¶

• unWrappedTileKey: string

不包含跨世界的瓦片标识（因为多个世界的瓦片如果仅仅是 wrap 不同，他们对应的数据资源是完全相同的）

Defined in ¶

gl-core/dist/index.d.ts:239

tileBounds ¶

• tileBounds: Bounds

瓦片范围（每次获取时计算）

Defined in ¶

gl-core/dist/index.d.ts:243

projTileBounds ¶

• projTileBounds: ProjTileBounds

投影后的瓦片范围

Defined in ¶

gl-core/dist/index.d.ts:247

options ¶

• options: TileIDOptions

Defined in ¶

gl-core/dist/index.d.ts:248

dep ¶

• dep: any

挂载的其他数据

Defined in ¶

gl-core/dist/index.d.ts:252

Methods ¶

getTileBounds ¶

▸ getTileBounds(tileID?): Bounds

获取瓦片范围

Parameters ¶

Name	Type
`tileID?`	`this`

Returns ¶

Bounds

Defined in ¶

gl-core/dist/index.d.ts:265

getTileProjBounds ¶

▸ getTileProjBounds(tileID?, force?): ProjTileBounds

获取瓦片投影后的范围

Parameters ¶

Name	Type
`tileID?`	`this`
`force?`	`boolean`

Returns ¶

ProjTileBounds

Defined in ¶

gl-core/dist/index.d.ts:269

overscaleFactor ¶

▸ overscaleFactor(): number

Returns ¶

number

Defined in ¶

gl-core/dist/index.d.ts:270

scaledTo ¶

▸ scaledTo(targetZ): TileID

缩放到目标层级

Parameters ¶

Name	Type
`targetZ`	`number`

Returns ¶

TileID

Defined in ¶

gl-core/dist/index.d.ts:275

parent ¶

▸ parent(): TileID

获取父级瓦片

Returns ¶

TileID

Defined in ¶

gl-core/dist/index.d.ts:279

children ¶

▸ children(sourceMaxZoom): TileID[]

查找当前瓦片的子瓦片

Parameters ¶

Name	Type
`sourceMaxZoom`	`number`

Returns ¶

TileID[]

Defined in ¶

gl-core/dist/index.d.ts:284

siblings ¶

▸ siblings(): TileID[]

查找兄弟瓦片

Returns ¶

TileID[]

Defined in ¶

gl-core/dist/index.d.ts:288

neighbor ¶

▸ neighbor(hor, ver?): TileID

查找相临瓦片

Parameters ¶

Name	Type	Description
`hor`	`number`	横向偏移
`ver?`	`number`	纵向偏移

Returns ¶

TileID

Defined in ¶

gl-core/dist/index.d.ts:294

isEqual ¶

▸ isEqual(tile): boolean

判断瓦片是否相同一般我们认为只要 xyz 和所处世界 wrap 相同就确认相同（即 tileKey 相同）

Parameters ¶

Name	Type
`tile`	`TileID`

Returns ¶

boolean

Defined in ¶

gl-core/dist/index.d.ts:300

isRoot ¶

▸ isRoot(): boolean

判断是否是根节点

Returns ¶

boolean

Defined in ¶

gl-core/dist/index.d.ts:305