OSM feature coverage by tiles

This is a script to get tiles that coverage any feature using the OpenStreetMap data.

Installation

$ git clone https://github.com/developmentseed/osm-coverage-tiles.git
$ cd osm-coverage-tiles/
$ npm link

Usage

$ osmcov <file.mbtiles> --zoom=<zoom of the mbtile> --types=<type of osm tags> > output.json

Arguments

• zoom, It should be the same zoom as the MBTiles.
• bbox, You could pass this parameter to reduce the size of evaluation.
• types, type of osm tags, https://taginfo.openstreetmap.org/search

--types=feature1,feature2,... --> The features depend on your necessity, for example, if you want to obtain the tiles where there are buildings, you should put --types=building or if you want to obtain for more types, you only should add the type between commas.

e.g:

--types=building,highway,leisure

Where to get the MBTiles?

• You can get the MBTiles from http://osmlab.github.io/osm-qa-tiles/, at zoom 12.

Creating your own MBTiles

For creating the mbtiles is necessary to use minjur and tippecanoe, both tool you could find in geokit.

$ wget http://download.geofabrik.de/south-america/colombia-latest.osm.bz2
$ docker run --rm -v ${PWD}:/mnt/data developmentseed/geokit:latest minjur colombia-latest.osm.bz2 > colombia.geojson
$ docker run --rm -v ${PWD}:/mnt/data developmentseed/geokit:latest tippecanoe -l osm -n osm-latest -o colombia.mbtiles -z15 -Z15 -psfk colombia.geojson
$ docker run --rm -v ${PWD}:/mnt/data developmentseed/geokit:latest osmcov colombia.mbtiles --zoom=15 --types=building,highway > colombia-output.json

Note

The output of osmcov command is a json file, which needs to convert into a geojson file, for it you can use the geokit.

$ docker run --rm -v ${PWD}:/mnt/data developmentseed/geokit:latest geokit jsonlines2geojson colombia-output.json > colombia-tiles.geojson