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GPKGFetcher

Bases: IDMixin

Tile fetcher for geopackages

Experimental

GPKGFetcher is experimental since 1.4.0 and may change without notice.

Implements the TileFetcher protocol.

PARAMETER	DESCRIPTION
path	Path to the geopackage (.gpkg file) TYPE: Path
epsg_code	EPSG code TYPE: EPSGCode
channel_name	Channel name (if None, the channel is ignored) TYPE: ChannelName | str | None
tile_size	Tile size in meters TYPE: TileSize
buffer_size	Buffer size in meters TYPE: BufferSize DEFAULT: 0

id property

RETURNS	DESCRIPTION
uuid.UUID	ID

from_config classmethod

Creates a GPKG fetcher from the configuration.

PARAMETER	DESCRIPTION
config	Configuration TYPE: GPKGFetcherConfig

RETURNS	DESCRIPTION
GPKGFetcher	GPKG fetcher

__call__

Fetches a tile from the geopackage.

PARAMETER	DESCRIPTION
coordinates	Coordinates (x_min, y_min) of the tile in meters TYPE: Coordinates

RETURNS	DESCRIPTION
Tile	Tile

---

GPKGFetcherConfig

Bases: pydantic.BaseModel

Configuration for the from_config class method of GPKGFetcher

Create the configuration from a config file

• Use null instead of None

Usage

You can create the configuration from a config file.

config.yaml

package: 'aviary'
name: 'GPKGFetcher'
config:
  path: 'path/to/my_gpkg.gpkg'
  epsg_code: 25832
  channel_name: 'my_channel'
  tile_size: 128
  buffer_size: 0

ATTRIBUTE	DESCRIPTION
path	Path to the geopackage (.gpkg file) TYPE: Path
epsg_code	EPSG code TYPE: EPSGCode
channel_name	Channel name (if None, the channel is ignored) TYPE: str
tile_size	Tile size in meters TYPE: TileSize
buffer_size	Buffer size in meters - defaults to 0 TYPE: BufferSize