Class GeoPackageTileRetriever

GeoPackage Tile Retriever, retrieves a tile from a GeoPackage from XYZ coordinates

Hierarchy

GeoPackageTileRetriever

Implements

TileRetriever

Index

Constructors

Methods

getScaling getTile getTileWGS84 getTileWithBounds getWebMercatorBoundingBox hasTile hasTileWGS84 setScaling

Constructors

constructor

new GeoPackageTileRetriever(tileDao: TileDao, width?: number, height?: number, imageFormat?: string): GeoPackageTileRetriever
Constructor with specified tile size
Parameters
- tileDao: TileDao
  
  tile dao
- Optional width: number
  
  width
- Optional height: number
  
  height
- imageFormat: string = 'image/png'
  
  image format
Returns GeoPackageTileRetriever
- Defined in lib/tiles/geoPackageTileRetriever.ts:26

Methods

getScaling

getScaling(): TileScaling
Get the Tile Scaling options

Returns
tile scaling options

Returns TileScaling
- Defined in lib/tiles/geoPackageTileRetriever.ts:98

getTile

getTile(x: number, y: number, zoom: number): Promise<GeoPackageTile>
Get web mercator x,y,z tile
Parameters
- x: number
- y: number
- zoom: number
Returns Promise<GeoPackageTile>
Implementation of TileRetriever.getTile
- Defined in lib/tiles/geoPackageTileRetriever.ts:50

getTileWGS84

getTileWGS84(x: number, y: number, zoom: number): Promise<GeoPackageTile>
Get wgs84 x,y,z tile
Parameters
- x: number
- y: number
- zoom: number
Returns Promise<GeoPackageTile>
- Defined in lib/tiles/geoPackageTileRetriever.ts:76

getTileWithBounds

getTileWithBounds(boundingBox: BoundingBox, projection: Projection): Promise<GeoPackageTile>
Get the tile for the specified bounds
Parameters
- boundingBox: BoundingBox
- projection: Projection
Returns Promise<GeoPackageTile>
- Defined in lib/tiles/geoPackageTileRetriever.ts:88

getWebMercatorBoundingBox

getWebMercatorBoundingBox(): BoundingBox
Returns the bounding box for the tile matrix set in EPSG:3857 (Web Mercator)

Returns
bounding bxo

Returns BoundingBox
- Defined in lib/tiles/geoPackageTileRetriever.ts:114

hasTile

hasTile(x: number, y: number, zoom: number): boolean
Check if data exists for the web mercator tile specified
Parameters
- x: number
- y: number
- zoom: number
Returns boolean
Implementation of TileRetriever.hasTile
- Defined in lib/tiles/geoPackageTileRetriever.ts:37

hasTileWGS84

hasTileWGS84(x: number, y: number, zoom: number): boolean
Check if data exists for the wgs84 tile specified
Parameters
- x: number
- y: number
- zoom: number
Returns boolean
- Defined in lib/tiles/geoPackageTileRetriever.ts:63

setScaling

setScaling(scaling: TileScaling): void
Set the Tile Scaling options
Parameters
- scaling: TileScaling
  
  tile scaling options
Returns void
- Defined in lib/tiles/geoPackageTileRetriever.ts:106

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