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Revision as of 23:30, 22 February 2011 by Korrosa (talk | contribs) (Convert hex coordinates to decimal degrees: Typo)
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There are the most common troubles and solutions for those. Please add your soluted problem here.

Where to search

There are IRC logs, forums and mailing lists.

Compilation troubles

Build Logs

Build logs of released and committed revisions are available.

My compilation fails, complaining about GL/glc.h

You are missing the quesoglc package. We may switch to another more common library at some point. It isn't widely used, so maybe it isn't available via your distro's repository. If you can't find it, try to compile it from sources, available on the quesoGLC website

If your running Gentoo, you can grab an ebuild for it here : http://www.kazer.org/navit/quesoglc-0.6.0.ebuild.

Can't exec "autopoint": No such file or directory

You're missing gettext-devel.

configure.in:21: error: possibly undefined macro: AC_DISABLE_STATIC

You're missing libtool.

configure.in:25: error: possibly undefined macro: AC_DEFINE

If autogen.sh complains about missing macro AC_DEFINE or AC_MSG_WARN: You're missing pkg-config

gui_sdl_window.cpp:23:19: error: CEGUI.h: No such file or directory

You need Crazy Eddie's GUI development files. Ususally called cegui-devel or libcegui-mk2-dev.

Navit can't find libgarmin, but i installed it!

Try :

export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig/

Then re-run navit's configure

Run time troubles

Navit hangs at "failed to create gui"

Example :

o (process:12367): WARNING **: failed to create gui 'sdl'
Using '/home/kazer/.navit/navit.xml'

Most likely, your navit.xml file is incomplete / erroneous. The best thing to try, is to start navit with the default configuration file :

./navit navit.xml

if you're running it from the source directory.

If it loads, then your configuration file is broken. First, check if you have the <plugins> section at the beginning of the file.

The easiest thing to do to fix this is probably to overwrite your own config file with the one shipped with Navit. Don't forget to read Configuring navit for some tips about the config file, especially if you run the SDL gui (GTK gui should work fine out of the box).

Navit complains: Error parsing 'navit.xml'


o Error parsing 'navit.xml': Element 'plugins' within unexpected context '(null)'. Expected 'config' at line 4, char 1

In the example the <config> opening and closing tags were missing from the navit.xml file.

My position is reported incorrectly

Most of the time, this is caused by the decimal separator being incorrectly set. Navit tries to override the decimal separator at startup, but the LC_ALL environment variable can block this. You can check this easily : echo $LC_ALL

If it returns something, you can't override your locale settings. You should "unset LC_ALL" and try again. If it works, you got it :)

In gentoo, this is set in the /etc/env.d/<something>locales. You may want to remove or comment the LC_ALL line in that file.

In the GTK gui, accents are broken in the buttons, and i get blank entries in the menus

Same thing as previously. The LC_ALL blocks you from changing the charset.

Navit routes me off a highway and then immediately back with OSM

If OSM has an highway=motorway_link with same speed limit as the highway then navit uses the ramp if it is technically a few meters shorter route. You can avoid this by searching for "<vehicleprofile name="car"" in navit.xml and setting "maxspeed_handling="1"" to make navit ignore the speed limit given in OSM and to default to 40 km/h (or whatever your navit.xml says) for highway=motorway_link.

This has been discussed at least at https://sourceforge.net/projects/navit/forums/forum/512960/topic/3702652

Configuration Troubles

Navit speaks! But it's all English...

How do you configure Navit to speak one of the other 22 languages? How do you do that on Windows? How on Linux?

espeak on Linux

To get Navit to speak with espeak you can add the following XML to your navit.xml file:

 <speech type="cmdline"
         data="espeak --stdout -ven+f4 "%s" | aplay -"
         cps="15" />

This tells espeak to output in the English language (-ven) using female voice #4 (+f4).

To change the spoken language - say to Dutch - there are two things that need to change: the words that are to be spoken need to be translated to Dutch, and the speech pronunciation has to change to Dutch too.

The first is done by changing the LANG environment variable. Instead of running "navit", use "env LANG=nl_NL navit" to get the Dutch translations. Change "nl_NL" to your preferred locale if you want something other than Dutch. As described above, the LC_ALL variable can be set and cause other translation issues, so I (Sybren) launch using:

 env -uLC_ALL -uLANGUAGE -uLC_MESSAGES LANG=nl_NL navit -c /home/root/.navit/navit-nl.xml

To change the pronunciation -- I'll use Dutch again as an example -- use this in your navit.xml instead:

 <speech type="cmdline"
         data="espeak --stdout -vnl+f4 "%s" | aplay -"
         cps="15" />

For different eSpeak language codes see the eSpeak language documentation.

Weird coordinates in bookmarks.txt and centre.txt

Internally, Navit uses hexadecimal values to represent latitude and longitude values. These values spill over to the outside world in bookmarks.txt and centre.txt, where points are saved as hexadecimal values by default.

Convert hex coordinates to decimal degrees

The following example entry from centre.txt will be used as our example:

 mg: 0x7c877 0x6496e5

The first set of numbers/letters is the longitude, the second the latitude.

Step 1: Convert hex to integer
The first step is to convert the strings to integer values. This can be done in a variety of ways:

1) Online
A variety of converters can be found by Googling "hex to decimal converter". One such is Wolfram Alpha, which provides the following results (http://www.wolframalpha.com/input/?i=0x7c877+to+decimal):

 0x7c877  -> 510071
 0x6496e5 -> 6592229

2) Command line
Using the printf command, hex can be converted to decimal using the following command:

 printf "%d" 0x7c877
 printf "%d" 0x6496e5

Step 2: Convert integer to decimal degrees
The integers are then converted to decimal degrees using the following formulae (from navit/transform.c):

 Longitude: INT/6371000.0/PI*180
 Latitude: atan(exp(INT/6371000.0))/PI*360-90

You can drop the calculation straight into Wolfram Alpha, as below:

 Longitude: 510071/6371000.0/PI*180 = 4.5871787
 Latitude: atan(exp(6592229/6371000.0))/PI*360-90 = 50.877276

So there we go:

 Longitude: 4.5871787
 Latitude: 50.877276

Which is here, just in case you wanted to know...

Converting in one commmand

 Latitude: http://www.wolframalpha.com/input/?i=0x7c877+/6371000.0/PI*180
 Longitude: http://www.wolframalpha.com/input/?i=atan(exp(0x6496e5/6371000.0))/PI*360-90

Convert decimal degrees to hex coordinates

Using the same location as the previous example:

 Longitude: 4.5871787
 Latitude: 50.877276

Step 1: Convert decimal degrees to integer
From navit/transform.c:


Dropping into Wolfram Alpha:

 4.5871787*6371000.0*PI/180 = 510071
 ln(tan(((50.877276+90)*PI)/360))*6371000.0 = 6592229

Step 2: Convert integer to hex coordinate

 Longitude: 510071 -> 7c877
 Longitude: 6592229 -> 6496e5

Don't forget the leading 0x to finish it off:

 Longitude: 0x7c877
 Longitude: 0x6496e5

Converting in one command

 Latitude: http://www.wolframalpha.com/input/?i=round(4.5871787*6371000.0*PI/180)+to+hex
 Longitude: http://www.wolframalpha.com/input/?i=round(ln(tan(((50.877276%2B90)*PI)/360))*6371000.0)+to+hex