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a5c5505713
Dynamically create image sprites for MapLibre rendering, given a directory with images. ### TODO * [x] Work with @flother to merge these PRs * [x] https://github.com/flother/spreet/pull/59 (must have) * [x] https://github.com/flother/spreet/pull/57 * [x] https://github.com/flother/spreet/pull/56 * [ ] https://github.com/flother/spreet/pull/62 (not required but nice to have, can upgrade later without any code changes) * [x] Add docs to the book * [x] Add CLI param, e.g. `--sprite <dir_path>` * [x] Don't output `.sprites` in auto-genned config when not in use ### API Per [MapLibre sprites API](https://maplibre.org/maplibre-style-spec/sprite/), we need to support the following: * `/sprite/<sprite_id>.json` metadata about the sprite file - all coming from a single directory * `/sprite/<sprite_id>.png` all images combined into a single PNG * `/sprite/<sprite_id>@2x.json` same but for high DPI devices * `/sprite/<sprite_id>@2x.png` Multiple sprite_id values can be combined into one sprite with the same pattern as for tile joining: `/sprite/<sprite_id1>,<sprite_id2>,...,<sprite_idN>[.json|.png|@2x.json|@2x.png]`. No ID renaming is done, so identical names will override one another. ### Configuration [Config file](https://maplibre.org/martin/config-file.html) and possibly CLI should have a simple option to serve sprites. The configuration may look similar to how mbtiles and pmtiles are configured: ```yaml # Publish sprite images sprites: paths: # scan this whole dir, matching all image files, and publishing it as "my_images" sprite source - /path/to/my_images sources: # named source matching source name to a directory my_sprites: /path/to/some_dir ``` Implement #705
163 lines
4.0 KiB
YAML
163 lines
4.0 KiB
YAML
---
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# Connection keep alive timeout [default: 75]
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keep_alive: 75
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# The socket address to bind [default: 0.0.0.0:3000]
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listen_addresses: '0.0.0.0:3000'
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# Number of web server workers
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worker_processes: 8
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# Database configuration. This can also be a list of PG configs.
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postgres:
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# Database connection string
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connection_string: '${DATABASE_URL:postgresql://postgres@localhost:5432/db}'
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# If a spatial table has SRID 0, then this SRID will be used as a fallback
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default_srid: 4326
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# Maximum connections pool size [default: 20]
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pool_size: 20
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# Associative arrays of table sources
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tables:
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table_source:
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# Table schema (required)
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schema: public
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# Table name (required)
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table: table_source
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# Geometry SRID (required)
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srid: 4326
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# Geometry column name (required)
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geometry_column: geom
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# Feature id column name
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id_column: ~
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# An integer specifying the minimum zoom level
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minzoom: 0
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# An integer specifying the maximum zoom level. MUST be >= minzoom
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maxzoom: 30
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# The maximum extent of available map tiles. Bounds MUST define an area
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# covered by all zoom levels. The bounds are represented in WGS:84
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# latitude and longitude values, in the order left, bottom, right, top.
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# Values may be integers or floating point numbers.
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bounds: [-180.0, -90.0, 180.0, 90.0]
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# Tile extent in tile coordinate space
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extent: 4096
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# Buffer distance in tile coordinate space to optionally clip geometries
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buffer: 64
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# Boolean to control if geometries should be clipped or encoded as is
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clip_geom: true
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# Geometry type
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geometry_type: GEOMETRY
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# List of columns, that should be encoded as tile properties (required)
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properties:
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gid: int4
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MixPoints:
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schema: MIXEDCASE
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table: MixPoints
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id_column: giD
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geometry_column: geoM
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srid: 4326
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geometry_type: POINT
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properties:
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taBLe: text
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points1:
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layer_id: abc
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schema: public
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table: points1
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minzoom: 0
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maxzoom: 30
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bounds: [-180.0, -90.0, 180.0, 90.0]
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id_column: ~
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geometry_column: geom
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srid: 4326
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extent: 4096
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buffer: 64
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clip_geom: true
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geometry_type: POINT
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properties:
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gid: int4
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points2:
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schema: public
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table: points2
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minzoom: 0
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maxzoom: 30
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bounds: [-180.0, -90.0, 180.0, 90.0]
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id_column: ~
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geometry_column: geom
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srid: 4326
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extent: 4096
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buffer: 64
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clip_geom: true
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geometry_type: POINT
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properties:
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gid: int4
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points3857:
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schema: public
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table: points3857
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minzoom: 0
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maxzoom: 30
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bounds: [-180.0, -90.0, 180.0, 90.0]
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id_column: ~
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geometry_column: geom
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srid: 3857
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extent: 4096
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buffer: 64
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clip_geom: true
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geometry_type: POINT
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properties:
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gid: int4
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# Associative arrays of function sources
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functions:
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function_zxy_query:
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# Schema name (required)
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schema: public
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# Function name (required)
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function: function_zxy_query
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# An integer specifying the minimum zoom level
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minzoom: 0
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# An integer specifying the maximum zoom level. MUST be >= minzoom
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maxzoom: 30
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# The maximum extent of available map tiles. Bounds MUST define an area
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# covered by all zoom levels. The bounds are represented in WGS:84
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# latitude and longitude values, in the order left, bottom, right, top.
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# Values may be integers or floating point numbers.
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bounds: [-180.0, -90.0, 180.0, 90.0]
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function_zxy_query_test:
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schema: public
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function: function_zxy_query_test
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minzoom: 0
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maxzoom: 30
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bounds: [-180.0, -90.0, 180.0, 90.0]
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pmtiles:
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sources:
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pmt: tests/fixtures/files/stamen_toner__raster_CC-BY+ODbL_z3.pmtiles
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sprites:
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paths: tests/fixtures/sprites/src1
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sources:
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mysrc: tests/fixtures/sprites/src2
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