Product Overview:
GraphHopper is an open-source routing engine designed specifically for OpenStreetMap (OSM). It allows developers to integrate OSM data into their applications using a Java library or as a standalone web server. GraphHopper provides fast and efficient routing capabilities, making it an ideal choice for projects requiring accurate and reliable directions.
Main Features:
- OpenStreetMap Integration: GraphHopper seamlessly integrates with OSM data in various formats (osm/xml, pbf) and can be adapted to custom data.
- Fast Routing Engine: With the "Contraction Hierarchies" algorithm enabled by default, GraphHopper provides fast routing capabilities.
- Memory-Efficient Data Structures: The library uses efficient algorithms and data structures, making it easy to use and scalable.
- Pre-Built Routing Profiles: GraphHopper includes pre-built profiles for various vehicles (car, bike, foot, etc.), which can be customized to support unique vehicle types or cargo bikes.
- Web API: The web API exposes OSM data and allows customization of vehicle profiles per request. It also supports JavaScript and Java clients.
- Map Matching: GraphHopper provides map matching capabilities for precise route calculation.
- Public Transit Routing: The library supports public transit routing and GTFS (General Transit Feed Specification) data.
- Multi-Language Support: Turn instructions are available in over 45 languages, allowing for international applications.
- Elevation Data Integration: GraphHopper takes into account elevation data to provide more accurate route calculations.
- Alternative Routes: The library provides alternative route options and considers turn costs and restrictions.
- Country-Specific Routing: Country-specific routing rules can be applied using custom areas.
- Customization: Developers can customize the routing behavior using custom areas, making it suitable for a wide range of applications.
Overall, GraphHopper offers a powerful and efficient routing engine that can be easily integrated into various projects, making it an excellent choice for developers working with OpenStreetMap data.