Navit is a free and open-source car navigation that support for various vector map formats. Is written in C/C++ and can run on a wide range of machines, included Raspberry Pi.

Installation:

Before start the installation, be sure to have the GPS module connected and working on your Raspberry Pi (previous post).

• turn on the raspberry and open the terminal
• update with sudo apt-get update and sudo atp-get upgrade
• configure GPS listeners from boot: sudo nano /etc/rc.local
• copy those commands:
• sudo systemctl stop gpsd.socket
• sudo systemctl disable gpsd.socket
• sudo gpsd /dev/serial0 -F /var/run/gpsd.sock
• save and reboot
• open terminal and type: sudo apt-get install navit
• download a map (.bin), use Planet Extractor, quick and simple (you can use Garmin maps too)
• copy the map inside /home/pi/navit directory (you can rename it with a shorter name)
• navigate to /etc/navit
• open the navit.xml file: sudo nano navit.xml
• search for the line <mapset enabled=”yes”> … </mapset> and change yes to no
• now look for the line after: <!– Mapset template for openstreetmaps –>
• in the line after, set your map path instead of: “media/mmc2/Mapsnavit/osm_europe.bin”

• save and close
• start Navit

More information about configurations can be found here: Navit Wiki