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zoff99 |
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NavIT |
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Navit is a open source (GPL) car navigation system with routing engine. |
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It's modular design is capable of using vector maps of various formats |
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for routing and rendering of the displayed map. It's even possible to |
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use multiple maps at a time. |
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The GTK+ or SDL user interfaces are designed to work well with touch |
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screen displays. Points of Interest of various formats are displayed |
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on the map. |
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The current vehicle position is either read from gpsd or directly from |
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NMEA GPS sensors. |
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The routing engine not only calculates an optimal route to your |
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destination, but also generates directions and even speaks to you. |
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Navit currently speaks 27 languages : |
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- Brazilian Portuguese |
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- Bulgarian |
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- Chinese (Hong Kong) |
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- Czech |
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- Danish |
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- Dutch |
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- English |
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- Estonian |
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- Finnish |
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- French |
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- German |
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- Hebrew |
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- Hungarian |
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- Italian |
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- Japanese |
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- Norwegian Bokmal |
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- Polish |
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- Portuguese |
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- Romanian |
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- Russian |
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- Slovak |
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- Slovenian |
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- Spanish |
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- Swedish |
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- Telugu |
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- Thai |
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- Turkish |
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You can help translating via our web based translation page : |
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http://translations.launchpad.net/navit/trunk/+pots/navit |
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For help or more information, please refer to the wiki : |
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http://wiki.navit-project.org |
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If you don't know where to start, we recommend you to read the |
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Interactive Help : http://wiki.navit-project.org/index.php/Interactive_help |
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Maps: |
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===== |
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The best navigation system is useless without maps. Those three maps |
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are known to work: |
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- OpenStreetMaps : display, routing, but street name search isn't complete |
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(see http://wiki.navit-project.org/index.php/OpenStreetMaps ) |
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- Grosser Reiseplaner and compliant maps : full support |
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(see http://wiki.navit-project.org/index.php/European_maps ) |
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- Garmin maps : display, routing, search is being worked on |
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(see http://wiki.navit-project.org/index.php/Garmin_maps ) |
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GPS Support: |
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============ |
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Navit read the current vehicle position : |
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- directly from a file |
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- from gpsd (local or remote) |
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- from udp server (friends tracking) (experimental) |
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Routing algorithm |
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================= |
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NavIt uses a Dijkstra algorithm for routing. The routing starts at the |
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destination by assigning a value to each point directly connected to |
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destination point. The value represents the estimated time needed to |
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pass this distance. |
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Now the point with the lowest value is choosen using the Fibonacci |
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heap and a value is assigned to connected points whos are |
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unevaluated or whos current value ist greater than the new one. |
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The search is repeated until the origin is found. |
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Once the origin is reached, all that needs to be done is to follow the |
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points with the lowest values to the destination. |
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