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1 NavIT
2 =====
3
4 Navit is a open source (GPL) car navigation system with routing engine.
5
6 It's modular design is capable of using vector maps of various formats
7 for routing and rendering of the displayed map. It's even possible to
8 use multiple maps at a time.
9
10 The GTK+ or SDL user interfaces are designed to work well with touch
11 screen displays. Points of Interest of various formats are displayed
12 on the map.
13
14 The current vehicle position is either read from gpsd or directly from
15 NMEA GPS sensors.
16
17 The routing engine not only calculates an optimal route to your
18 destination, but also generates directions and even speaks to you.
19
20 Navit currently speaks 27 languages :
21 - Brazilian Portuguese
22 - Bulgarian
23 - Chinese (Hong Kong)
24 - Czech
25 - Danish
26 - Dutch
27 - English
28 - Estonian
29 - Finnish
30 - French
31 - German
32 - Hebrew
33 - Hungarian
34 - Italian
35 - Japanese
36 - Norwegian Bokmal
37 - Polish
38 - Portuguese
39 - Romanian
40 - Russian
41 - Slovak
42 - Slovenian
43 - Spanish
44 - Swedish
45 - Telugu
46 - Thai
47 - Turkish
48
49 You can help translating via our web based translation page :
50 http://translations.launchpad.net/navit/trunk/+pots/navit
51
52
53 For help or more information, please refer to the wiki :
54 http://wiki.navit-project.org
55
56 If you don't know where to start, we recommend you to read the
57 Interactive Help : http://wiki.navit-project.org/index.php/Interactive_help
58
59
60 Maps:
61 =====
62
63 The best navigation system is useless without maps. Those three maps
64 are known to work:
65
66 - OpenStreetMaps : display, routing, but street name search isn't complete
67 (see http://wiki.navit-project.org/index.php/OpenStreetMaps )
68
69 - Grosser Reiseplaner and compliant maps : full support
70 (see http://wiki.navit-project.org/index.php/European_maps )
71
72 - Garmin maps : display, routing, search is being worked on
73 (see http://wiki.navit-project.org/index.php/Garmin_maps )
74
75
76 GPS Support:
77 ============
78
79 Navit read the current vehicle position :
80 - directly from a file
81 - from gpsd (local or remote)
82 - from udp server (friends tracking) (experimental)
83
84
85 Routing algorithm
86 =================
87
88 NavIt uses a Dijkstra algorithm for routing. The routing starts at the
89 destination by assigning a value to each point directly connected to
90 destination point. The value represents the estimated time needed to
91 pass this distance.
92
93 Now the point with the lowest value is choosen using the Fibonacci
94 heap and a value is assigned to connected points whos are
95 unevaluated or whos current value ist greater than the new one.
96
97 The search is repeated until the origin is found.
98
99 Once the origin is reached, all that needs to be done is to follow the
100 points with the lowest values to the destination.
101

   
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