BRouter

BRouter is a configurable OSM offline router with elevation awareness, Java + Android. Designed to be multi-modal with a particular emphasis on bicycle and energy-based car routing.

For more infos see http://brouter.de/brouter.

BRouter on Android

You can install the BRouter app on your Android device from F-Droid or Google Play Store. You can also build BRouter yourself. You can find detailed documentation of the BRouter Android app in docs/users/android_quickstart.md.

Android with Locus

You can use BRouter as the offline routing engine for Locus Map on your Android device. This is currently the most featureful and maintained solutions for using BRouter on your Android device.

A full documentation on how to set this up is available at https://www.locusmap.eu/locus-map-can-navigate-offline/.

Android with OSMAnd

Alternatively, you can also use BRouter as the offline routing engine for OSMAnd on your Android device.

A full documentation on how to set this up is available at docs/users/osmand.md.

BRouter on Windows/Linux/Mac OS

Build and Install

To compile the BRouter Android app, the Android SDK path must first be set in a file called local.properties in the main folder:

sdk.dir=<your/android/sdk/path>

Build BRouter with the Android app (if Android SDK path is set):

./gradlew clean build

Build BRouter without the Android app:

./gradlew clean build -x :brouter-routing-app:build

Build JAR file for server and map creator with all dependent classes:

./gradlew clean build fatJar # places JAR file in brouter-server/build/libs/

Build ZIP file for distribution with readmes, profiles, APK and JAR:

./gradlew distZip # places ZIP file in brouter-server/build/distributions/

Get the required segments (data) files

Routing data files are organised as 5*5 degree files, with the filename containing the south-west corner of the square, which means:

You want to route near West48/North37 -> you need W50_N35.rd5
You want to route near East7/North47 -> you need E5_N45.rd5

These data files, called "segments" across BRouter, are generated from OpenStreetMap data and stored in a custom binary format (rd5) for improved efficiency of BRouter routing.

Download them from brouter.de

Segments files from the whole planet are generated weekly at https://brouter.de/brouter/segments4/.

You can download one or more segments files, covering the area of the planet you want to route, into the misc/segments4 directory.

Generate your own segments files

You can also generate the segments files you need directly from a planet dump of OpenStreetMap data (or a GeoFabrik extract).

More documentation of this is available in the docs/developers/build_segments.md file.

(Optional) Generate profile variants

This repository holds examples of BRouter profiles for many different transportation modes. Most of these can be easily customized by setting variables in the first global context of the profiles files.

An helper script is available in misc/scripts/generate_profile_variants.sh to help you quickly generate variants based on the default profiles, to create a default set of profiles covering most of the basic use cases.

Have a look at the docs/developers/profile_developers_guide.md for an in-depth guide on profiles edition and customization.

Run the BRouter HTTP server

Helpers scripts are provided in misc/scripts/standalone to quickly spawn a BRouter HTTP server for various platforms.

Linux/Mac OS: ./misc/scripts/standalone/server.sh
Windows (using Bash): ./misc/scripts/standalone/server.sh
Windows (using CMD): misc\scripts\standalone\server.cmd

The API endpoints exposed by this HTTP server are documented in the brouter-server/src/main/java/btools/server/request/ServerHandler.java file.

The server emits log data for each routing request on stdout. For each routing request a line with the following eight fields is printed. The fields are separated by whitespace.

timestamp, in ISO8601 format, e.g. 2024-05-14T21:11:26.499+02:00
current server session count (integer number 1-999) or "new" when a new IP address is detected
IP address (IPv4 or IPv6), prefixed by ip=
duration of routing request in ms, prefixed by ms=
divider ->
HTTP request method
HTTP request URL
HTTP request version

Example log output:

2024-05-14T21:11:26.499+02:00 new ip=127.0.0.1 ms=189 -> GET /brouter?lonlats=13.377485,52.516247%7C13.351221,52.515004&profile=trekking&alternativeidx=0&format=geojson HTTP/1.1
2024-05-14T21:11:33.229+02:00   1 ip=127.0.0.1 ms=65 -> GET /brouter?lonlats=13.377485,52.516247%7C13.351221,52.515004&profile=trekking&alternativeidx=0&format=geojson HTTP/1.1

BRouter with Docker

To build the Docker image run (in the project's top level directory):

docker build -t brouter .

Download the segment files as described in the previous chapter. The folder containing the segment files can be mounted into the container. Run BRouter as follows:

docker run --rm \
  -v ./misc/scripts/segments4:/segments4 \
  -p 17777:17777 \
  --name brouter \
  brouter

This will start brouter with a set of default routing profiles. It will be accessible on port 17777.

If you want to provide your own routing profiles, you can also mount the folder containing the custom profiles:

docker run --rm \
  -v ./misc/scripts/segments4:/segments4 \
  -v /path/to/custom/profiles:/profiles2 \
  -p 17777:17777 \
  --name brouter \
  brouter

Documentation

More documentation is available in the docs folder.

Related Projects

nrenner/BRouter-web, a web interface on top of the BRouter HTTP server. An online instance is available at http://brouter.de/brouter-web/.
poutnikl/Brouter-profiles, a collection of BRouter profiles.
Phyks/BRouterTesting, a collection of test cases for helping develop new BRouter profiles.

License

BRouter is released under an MIT License.

License

gpxstudio/brouter

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