tilezen / tilepacks

Tools to build tile packages meant for offline usage.

tilepacks

Tools to build tile packages meant for offline usage.

Installation

1. Clone the repository locally:

   git clone https://github.com/tilezen/tilepacks.git
   

2. Create a Python virtual environment and install dependencies (requires Python3):

cd tilepacks
virtualenv -p python3 env
source env/bin/activate
pip install -e .

3. Run the tilepack command to get command-line help.

$ tilepack
usage: tilepack [-h] [--tile-format TILE_FORMAT]
                [--output-formats OUTPUT_FORMATS] [-j CONCURRENCY]
                min_lon min_lat max_lon max_lat min_zoom max_zoom output
tilepack: error: the following arguments are required: min_lon, min_lat, max_lon, max_lat, min_zoom, max_zoom, output

defaults: 256 px mvt tiles, output as a zipfile and an mbtiles package.

parameters:

TILE_FORMAT: default is mvt. topojson, json also available

OUTPUT_FORMATS: default is both zipfile and mbtiles

CONCURRENCY: default is 4 * the number of CPUs you have

Sample command to grab 512px topojson tiles for San Francisco:

MAPZEN_API_KEY=mapzen-xxxxxx tilepack -122.51489 37.70808 -122.35698 37.83239 10 16 sf --tile-size 512 --tile-format topojson

Note that tiles above zoom 15 do not have any additional data or resolution already in a z15 tiles, so downloading 17 and 18 may be unnecessary. (If you're using Tangram, it begins overzooming at z16).