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24.1.27. Vector Tiles

24.1.27.1. Download vector tiles

Downloads vector tiles of an input vector tile layer and saves them in a local vector tile file.

Parametrai

Užrašas	Pavadinimas	Tipas	Aprašymas
Įvesties sluoksnis	INPUT	[vector tiles]	A vector tile layer to extract some tiles from
Extent	EXTENT	[extent]	Specify the spatial extent of the downloaded area. It will internally be extended to a multiple of the tile size. Available methods are: Calculate from layer…: uses extent of a layer loaded in the current project Calculate from layout map…: uses extent of a layout map item in the active project Calculate from bookmark…: uses extent of a saved bookmark Use map canvas extent Draw on canvas: click and drag a rectangle delimiting the area to take into account Enter the coordinates as xmin, xmax, ymin, ymax
Maximum zoom level to download	MAX_ZOOM	[numeric: integer] Default: 10	Defines how far to zoom in and fetch data from the tiles
Tile limit	TILE_LIMIT	[numeric: integer] Default: 100	Maximum number of tiles to download, considering the zoom levels and the extent.
Output	OUTPUT	[vector tiles] Default: [Save to temporary file]	Specification of the output vector tile file. One of: Įrašyti į laikiną failą Įrašyti į failą…

Išvestys

Užrašas	Pavadinimas	Tipas	Aprašymas
Output	OUTPUT	[vector tiles]	A local vector tile file storing the downloaded tiles.

Pythono kodas

Algorithm ID: native:downloadvectortiles

import processing
processing.run("algorithm_id", {parameter_dictionary})

algoritmo id rodomas, kai užvedate pelę virš algoritmo apdorojimo įrankinėje. parametrų žodynas teikia parametrų pavadinimus ir reikšmes. Daugiau informacijos apie tai, kaip vykdyti apdorojimo algoritmus Pythono konsolėje rasite skyriuje Using processing algorithms from the console.

24.1.27.2. Write vector tiles (MBTiles)

Exports one or more vector layers to vector tiles, a data format optimized for fast map rendering and small data size.

MBTiles is a specification for storing tiled map data in SQLite databases for immediate usage and for transfer. MBTiles files are known as tilesets.

Parametrai

Užrašas	Pavadinimas	Tipas	Aprašymas
Input layers	INPUT	[vector: any] [list]	A list of layers to combine to generate the vector tiles
Minimum zoom level	MIN_ZOOM	[numeric: integer] Numatytas: 0	The lowest zoom level for which the tileset provides data. Set between 0 and 24.
Maximum zoom level	MAX_ZOOM	[numeric: integer] Default: 3	The highest zoom level for which the tileset provides data. Set between 0 and 24.
Extent Pasirinktinis	EXTENT	[extent] Numatytas: jokio	The maximum extent of the rendered map area. Bounds must define an area covered by all zoom levels.
Metadata: Name Pasirinktinis	META_NAME	[string]	Name of the tileset
Metadata: Description Pasirinktinis	META_DESCRIPTION	[string]	A description of the tileset’s contents
Metadata: Attribution Pasirinktinis	META_ATTRIBUTION	[string]	An attribution string, which explains the sources of data and/or style for the map.
Metadata: Version Pasirinktinis	META_VERSION	[string]	The version of the tileset. This refers to a revision of the tileset itself, not of the MBTiles specification.
Metadata: Type Pasirinktinis	META_TYPE	[string]	Type of tileset. Possible values are overlay or baselayer.
Metadata: Center Pasirinktinis	META_CENTER	[string]	The center (string of comma-separated numbers: the longitude, latitude, and zoom level) of the default view of the map. Example: -122.1906,37.7599,11
Destination MBTiles	OUTPUT	[vector tiles] Default: [Save to temporary file]	Specification of the output MBTiles file. One of: Įrašyti į laikiną failą Įrašyti į failą…

Išvestys

Užrašas	Pavadinimas	Tipas	Aprašymas
Destination MBTiles	OUTPUT	[file]	Output vector tiles .mbtiles file.

Pythono kodas

Algorithm ID: native:writevectortiles_mbtiles

import processing
processing.run("algorithm_id", {parameter_dictionary})

algoritmo id rodomas, kai užvedate pelę virš algoritmo apdorojimo įrankinėje. parametrų žodynas teikia parametrų pavadinimus ir reikšmes. Daugiau informacijos apie tai, kaip vykdyti apdorojimo algoritmus Pythono konsolėje rasite skyriuje Using processing algorithms from the console.

24.1.27.3. Write vector tiles (XYZ)

Exports one or more vector layers to vector tiles, a data format optimized for fast map rendering and small data size.

Parametrai

Užrašas	Pavadinimas	Tipas	Aprašymas
File template	XYZ_TEMPLATE	[string] Default: ‚{z}/{x}/{y}.pbf‘	Template to generate the vector tiles url
Input layers	INPUT	[vector: any] [list]	A list of layers to combine to generate the vector tiles
Minimum zoom level	MIN_ZOOM	[numeric: integer] Numatytas: 0	The lowest zoom level for which the tileset provides data. Set between 0 and 24.
Maximum zoom level	MAX_ZOOM	[numeric: integer] Default: 3	The highest zoom level for which the tileset provides data. Set between 0 and 24.
Extent Pasirinktinis	EXTENT	[extent] Numatytas: jokio	The maximum extent of the rendered map area. Bounds must define an area covered by all zoom levels.
Output directory	OUTPUT_DIRECTORY	[folder] Default: [Save to temporary folder]	Specification of the output vector tiles folder. One of: Save to a Temporary Directory Save to Directory

Išvestys

Užrašas	Pavadinimas	Tipas	Aprašymas
Output directory	OUTPUT_DIRECTORY	[folder]	A folder containing different subsets of the vector tiles files (.pbf) stored in subfolders corresponding to the zoom levels.

Pythono kodas

Algorithm ID: native:writevectortiles_xyz

import processing
processing.run("algorithm_id", {parameter_dictionary})

algoritmo id rodomas, kai užvedate pelę virš algoritmo apdorojimo įrankinėje. parametrų žodynas teikia parametrų pavadinimus ir reikšmes. Daugiau informacijos apie tai, kaip vykdyti apdorojimo algoritmus Pythono konsolėje rasite skyriuje Using processing algorithms from the console.