Class Loader

A class to load and preprocess data from PNG tiles. Used intenally by WxLayer. Do not use directly.

Hierarchy

Loader

Index

Constructors

Properties

_layer _loadDataFunc

Methods

cacheLoad clearCache load

Constructors

constructor

new Loader(layer: WxLayer): Loader
Do not use constructor directly
Parameters
- layer: WxLayer
Returns Loader
- Defined in src/wxlayer/loader.ts:49

Properties

`Protected` `Readonly` _layer

_layer: WxLayer

refference to the Layer WxLayer in which this loader is used

`Protected` `Readonly` _loadDataFunc

_loadDataFunc: CachedUriLoaderPromiseFunc<DataIntegral> = ...

function to load, decode and cache data from URL

Methods

cacheLoad

cacheLoad(tile: XYZ, uris: WxURIs, requestInit?: WxRequestInit): Promise<null | {
    rawdata: DataIntegrals;
    subCoords?: XYZ;
    tileType: TileType;
}>
Load and preprocess data for a single tile

Returns
data of the tile
Parameters
- tile: XYZ
  
  tile coordinates
- uris: WxURIs
  
  tile URIs
- Optional requestInit: WxRequestInit
  
  requestInit for fetch
Returns Promise<null | {
    rawdata: DataIntegrals;
    subCoords?: XYZ;
    tileType: TileType;
}>
- Defined in src/wxlayer/loader.ts:79

clearCache

clearCache(): void
Clear cache

Returns void
- Defined in src/wxlayer/loader.ts:98

load

load(tile: XYZ, requestInit?: WxRequestInit): Promise<null | WxData>
Load and preprocess data for a single tile

Returns
data of the tile
Parameters
- tile: XYZ
  
  tile coordinates
- Optional requestInit: WxRequestInit
  
  requestInit for fetch
Returns Promise<null | WxData>
- Defined in src/wxlayer/loader.ts:59

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