omt_server

The omt_server project is:

1. a build / run environment atop OpenMapTiles https://github.com/openmaptiles/openmaptiles
2. it includes scripts to build tiles (mbtile file) from OSM data
3. it also includes scripts to run a GL server based off a built .mbtiles file
4. there are also a set of gl styles that GL can consume
5. finally, there scripts to manage (nuke) docker, etc...

build tile *.mbtiles file from OSM:

1. cd ~/omt_server/
2. scripts/git_update.sh
3. cp <your_OSM_data>.osm.pbf openmaptiles/data/
4. scripts/import.sh
5. openmaptiles/data/*.mbtiles file is generated(as well as some meta data files) NOTE: import.sh is configured to generate 16 layers of data, which takes ~2 hours for a sub-state region (NW Oregon, SW Washington) larger regions should probably ramp down the layers parameter. See scripts/yml_updates.sh

run tile server:

1. cd ~/omt_server/gl
2. ls ./data -> borders or-wa.dc-config.yml or-wa.mbtiles
3. tmux new-session -d -s my_session 'run.sh >> out.txt 2>&1'
4. http://localhost:8080

edit styles:

1. mapnik
2. Might have to understand underlying data: https://openmaptiles.org/schema/#poi
3. Finally, the editor might muck with the data and font URLs. So good to have an script to fix that... "glyphs": "http://localhost:8080/fonts/{fontstack}/{range}.pbf", "glyphs": "{fontstack}/{range}.pbf", "url": "http://localhost:8080/data/or-wa.json" "url": "mbtiles://or-wa.mbtiles"

validate style.json

1. https://github.com/mapbox/mapbox-gl-js/tree/main/src/style-spec
2. npm install @mapbox/mapbox-gl-style-spec --global # caution global
3. gl-style-validate gl/style/trimet.json

add fonts:

1. download the font file (e.g., https://fonts.google.com/specimen/Source+Sans+Pro#standard-styles)
2. run the font converter:
   • git clone https://github.com/openmaptiles/fonts.git
   • cd ./fonts
   • cp .
   • yarn install
   • node ./generate.js
3. cp ./_output/* ../omt_tiles/gl/fonts/

ws endpoints

• https://tileserver.readthedocs.io/en/latest/endpoints.html
• static images:
  1. /styles/{id}/static/{lon},{lat},{zoom}[@{bearing}[,{pitch}]]/{width}x{height}[@2x].{format}
  2. https://tiles-dv.trimet.org/styles/bright/static/-122.67567,45.42061,18/300x288.png
  3. https://tiles-dv.trimet.org/styles/bright/static/-122.67567,45.42061,17@0,70/550x388.png