Class: TileID ¶
Table of contents ¶
Constructors ¶
Properties ¶
Methods ¶
Constructors ¶
constructor ¶
• new TileID(overscaledZ, wrap?, z, x, y, options?): TileID
Parameters ¶
| Name | Type | Default value | Description |
|---|---|---|---|
overscaledZ | number | undefined | 扩大的 z 值 |
wrap | number | 0 | 所处世界 |
z | number | undefined | 层级 |
x | number | undefined | 列 |
y | number | undefined | 行 |
options | TileIDOptions | undefined | 瓦片其他配置 |
Returns ¶
Defined in ¶
Properties ¶
x ¶
• x: number
瓦片列
Defined in ¶
wrapedX ¶
• wrapedX: number
跨世界后的瓦片列
Defined in ¶
y ¶
• y: number
瓦片行
Defined in ¶
wrapedY ¶
• wrapedY: number
跨世界后的瓦片行（目前仅 maptalks 支持）
Defined in ¶
z ¶
• z: number
瓦片层级
Defined in ¶
wrap ¶
• wrap: number
所在世界（如果是多世界的话）
Defined in ¶
overscaledZ ¶
• overscaledZ: number
放大后的 zoom 值
Defined in ¶
tileKey ¶
• tileKey: string
瓦片唯一标识
Defined in ¶
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 ¶
tileBounds ¶
• tileBounds: Bounds
瓦片范围（每次获取时计算）
Defined in ¶
projTileBounds ¶
• projTileBounds: ProjTileBounds
投影后的瓦片范围
Defined in ¶
options ¶
• options: TileIDOptions
Defined in ¶
dep ¶
• dep: any
挂载的其他数据
Defined in ¶
Methods ¶
getTileBounds ¶
▸ getTileBounds(tileID?): Bounds
获取瓦片范围
Parameters ¶
| Name | Type |
|---|---|
tileID | TileID |
Returns ¶
Defined in ¶
gl-core/src/tile/TileID.ts:104
getTileProjBounds ¶
▸ getTileProjBounds(tileID?, force?): ProjTileBounds
获取瓦片投影后的范围
Parameters ¶
| Name | Type |
|---|---|
tileID | TileID |
force? | boolean |
Returns ¶
Defined in ¶
gl-core/src/tile/TileID.ts:116
overscaleFactor ¶
▸ overscaleFactor(): number
Returns ¶
number
Defined in ¶
gl-core/src/tile/TileID.ts:124
scaledTo ¶
▸ scaledTo(targetZ): TileID
缩放到目标层级
Parameters ¶
| Name | Type |
|---|---|
targetZ | number |
Returns ¶
Defined in ¶
gl-core/src/tile/TileID.ts:132
parent ¶
▸ parent(): TileID
获取父级瓦片
Returns ¶
Defined in ¶
gl-core/src/tile/TileID.ts:144
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/src/tile/TileID.ts:153
siblings ¶
▸ siblings(): TileID[]
查找兄弟瓦片
Returns ¶
TileID[]
Defined in ¶
gl-core/src/tile/TileID.ts:173
neighbor ¶
▸ neighbor(hor, ver?): TileID
查找相临瓦片
Parameters ¶
| Name | Type | Default value | Description |
|---|---|---|---|
hor | number | undefined | 横向偏移 |
ver | number | 0 | 纵向偏移 |
Returns ¶
Defined in ¶
gl-core/src/tile/TileID.ts:186
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/src/tile/TileID.ts:211
isRoot ¶
▸ isRoot(): boolean
判断是否是根节点
Returns ¶
boolean