Navit

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Note that a short syntax (e.g. LANG=fr) would not work.
 
Note that a short syntax (e.g. LANG=fr) would not work.
  
If you put an "export LANG=fr_FR.UTF-8" into your /etc/.profile file, it will automatically be set this environment variable every time you boot up.  This way, you can launch Navit from the Icon in Illume.
+
If you put an "export LANG=fr_FR.UTF-8" into your /etc/.profile file, it will automatically set this environment variable every time you boot up.  This way, you can launch Navit from the Icon in Illume.
  
 
http://trac.navit-project.org/ticket/51
 
http://trac.navit-project.org/ticket/51

Revision as of 17:16, 18 August 2008

As described on the Navit home page,

"Navit is a car navigation system with routing engine.

It's modular design is capable of using vector maps of various formats for routing and rendering of the displayed map. It's even possible to use multiple maps at a time.

The GTK+ or SDL user interfaces are designed to work well with touch screen displays. Points of Interest of various formats are displayed on the map.

The current vehicle position is either read from gpsd or directly from NMEA GPS sensors."

Some people say Navit is also a good choice for pedestrian and bicycle navigation.

Navit-0.0.4+cvs

Contents

Acknowledgment

Thanks to Alessandro, stefan_schmidt, cp15 and all Navit developers I have done a small ("not really working") preview of Navit on Neo1973 at Telemobility Forum 2007. Thanks to GFoss guys to invite me. Tyrael

Setting up Navit

I got navit set up and configured to the point where it follows me on the map. It doesn't have street names or any other information, just the map and the cursor showing the location and direction. Here's what I did:

  • Install navit ipkg on NEO
opkg install http://www.mikeasoft.com/~mike/ipk/armv4t/navit_0.0.4-r0_armv4t.ipk
  • Or roll your own from svn using the toolchain (having checked out trunk in the navit directory, and assuming you have written navit_control):
. /usr/local/openmoko/arm/setup-env
om-conf navit --disable-samplemap
om-make-ipkg navit navit_control
wget -O map1.osm http://www.openstreetmap.org/api/0.5/map?bbox=-122.2,47.5,-122,47.7
wget -O map2.osm http://www.openstreetmap.org/api/0.5/map?bbox=-122.4,47.5,-122.2,47.7
wget -O map3.osm http://www.openstreetmap.org/api/0.5/map?bbox=-122.4,47.3,-122.2,47.5
wget -O map4.osm http://www.openstreetmap.org/api/0.5/map?bbox=-122.2,47.3,-122,47.5
      • Made a navit binary map file using the osm2navit binary that comes with the navit package on my linux box (it is also installing to the target from the .ipk)
cat *.osm | osm2navit --dedupe-ways mymap.bin

http://downloads.cloudmade.com/ also has up-to-date maps from OpenStreetMap by country.

      • Copied the map to the NEO
scp mymap.bin root@neo:/home/root/card/map
      • Change the navit.xml file on the NEO to use the new map
cp /usr/share/navit/navit.xml ~/.navit/navit.xml
vi ~/.navit/navit.xml
<map type="binfile" enabled="yes" data="/home/root/card/map/mymap.bin" />
  • Run navit
    • Start gllin (for GTA01)
    • Start gpsd ( gpsd /tmp/nmeaNP )
    • Start navit
  • The version of osm2navit with which you build the maps should match the version of navit you have. If in doubt, build the maps on the OpenMoko.

News

Street names

They are now displayed on OpenMoko using the CVS version of Navit (20071217).

Point selection by pen

Easier using the CVS version (20071217).

Route > Destination

The Route > Destination menu item crashes the software (20071217 and 0.04).

A current fix is to set the LANG variable before calling navit. For example:

LANG=fr_FR.UTF-8 navit

Note that a short syntax (e.g. LANG=fr) would not work.

If you put an "export LANG=fr_FR.UTF-8" into your /etc/.profile file, it will automatically set this environment variable every time you boot up. This way, you can launch Navit from the Icon in Illume.

http://trac.navit-project.org/ticket/51

Speech

Navit can speak if you install eSpeak + speech-dispatcher and updates your navit.xml file.

For adventurous people, one way to do this:

* mokoTTS aims to integrate these packages in OM:
http://projects.openmoko.org/projects/mokotts/

install espeak, dotconf, and then speech-dispatcher.
note: running 2008.8 updating from zecke's "testing" repo does not require "dotconf"

* change the speech tag in navit.xml:
<speech type="cmdline" data="spd-say '%s'" />

or "spd-say -l fr '%s'" for using the French voice for example.

Script to download OSM maps

Wurp wrote a little python script to download all OSM maps within a lat/long rectangle. Just copy the script to a file called dlOSM.sh, chmod +x it, and run it like

dlOSM.sh <minimum latitude> <maximum latitude> <minimum longitude> <maximum longitude>

It takes a long time for large maps. I could optimize it some by having it try to get a big section at once, then if it fails, break it into smaller pieces and recurse. I'm not sure when/if I'll get around to that...

dlOSM.sh:

 #!/usr/bin/python
 
 import os
 import sys
 #import math
 
 def doIt(cmd):
   os.system(cmd)
 
 def getOsms(basename, minLat, maxLat, minLon, maxLon):
   '''basename - base name of map, maps are named {basename}{count}.osm
      minLat - latitude of the west side of the map
      maxLat - latitude of the east side of the map
      minLon - longitude of the north side of the map
      maxLon - longitude of the south side of the map'''
 
   wgetCmdTemplate = 'wget -O %s%s.osm http://api.openstreetmap.org/api/0.5/map?bbox=%s,%s,%s,%s'
 
   currLat = minLat
   mapCount = 0
   while currLat < maxLat:
     nextLat = min(currLat + 0.1, maxLat)
 
     currLon = minLon
     while currLon < maxLon:
       nextLon = min(currLon + 0.1, maxLon)
 
       doIt(wgetCmdTemplate % (basename, mapCount, currLon, currLat, nextLon, nextLat))
 
       currLon = nextLon
       mapCount = mapCount + 1
 
     currLat = nextLat
 
 (minLat, maxLat, minLon, maxLon) = map(float, sys.argv[1:])
 getOsms('map', minLat, maxLat, minLon, maxLon)
Personal tools

As described on the Navit home page,

"Navit is a car navigation system with routing engine.

It's modular design is capable of using vector maps of various formats for routing and rendering of the displayed map. It's even possible to use multiple maps at a time.

The GTK+ or SDL user interfaces are designed to work well with touch screen displays. Points of Interest of various formats are displayed on the map.

The current vehicle position is either read from gpsd or directly from NMEA GPS sensors."

Some people say Navit is also a good choice for pedestrian and bicycle navigation.

Navit-0.0.4+cvs

Acknowledgment

Thanks to Alessandro, stefan_schmidt, cp15 and all Navit developers I have done a small ("not really working") preview of Navit on Neo1973 at Telemobility Forum 2007. Thanks to GFoss guys to invite me. Tyrael

Setting up Navit

I got navit set up and configured to the point where it follows me on the map. It doesn't have street names or any other information, just the map and the cursor showing the location and direction. Here's what I did:

  • Install navit ipkg on NEO
opkg install http://www.mikeasoft.com/~mike/ipk/armv4t/navit_0.0.4-r0_armv4t.ipk
  • Or roll your own from svn using the toolchain (having checked out trunk in the navit directory, and assuming you have written navit_control):
. /usr/local/openmoko/arm/setup-env
om-conf navit --disable-samplemap
om-make-ipkg navit navit_control
wget -O map1.osm http://www.openstreetmap.org/api/0.5/map?bbox=-122.2,47.5,-122,47.7
wget -O map2.osm http://www.openstreetmap.org/api/0.5/map?bbox=-122.4,47.5,-122.2,47.7
wget -O map3.osm http://www.openstreetmap.org/api/0.5/map?bbox=-122.4,47.3,-122.2,47.5
wget -O map4.osm http://www.openstreetmap.org/api/0.5/map?bbox=-122.2,47.3,-122,47.5
      • Made a navit binary map file using the osm2navit binary that comes with the navit package on my linux box (it is also installing to the target from the .ipk)
cat *.osm | osm2navit --dedupe-ways mymap.bin

http://downloads.cloudmade.com/ also has up-to-date maps from OpenStreetMap by country.

      • Copied the map to the NEO
scp mymap.bin root@neo:/home/root/card/map
      • Change the navit.xml file on the NEO to use the new map
cp /usr/share/navit/navit.xml ~/.navit/navit.xml
vi ~/.navit/navit.xml
<map type="binfile" enabled="yes" data="/home/root/card/map/mymap.bin" />
  • Run navit
    • Start gllin (for GTA01)
    • Start gpsd ( gpsd /tmp/nmeaNP )
    • Start navit
  • The version of osm2navit with which you build the maps should match the version of navit you have. If in doubt, build the maps on the OpenMoko.

News

Street names

They are now displayed on OpenMoko using the CVS version of Navit (20071217).

Point selection by pen

Easier using the CVS version (20071217).

Route > Destination

The Route > Destination menu item crashes the software (20071217 and 0.04).

A current fix is to set the LANG variable before calling navit. For example:

LANG=fr_FR.UTF-8 navit

Note that a short syntax (e.g. LANG=fr) would not work.

If you put an "export LANG=fr_FR.UTF-8" into your /etc/.profile file, it will automatically set this environment variable every time you boot up. This way, you can launch Navit from the Icon in Illume.

http://trac.navit-project.org/ticket/51

Speech

Navit can speak if you install eSpeak + speech-dispatcher and updates your navit.xml file.

For adventurous people, one way to do this:

* mokoTTS aims to integrate these packages in OM:
http://projects.openmoko.org/projects/mokotts/

install espeak, dotconf, and then speech-dispatcher.
note: running 2008.8 updating from zecke's "testing" repo does not require "dotconf"

* change the speech tag in navit.xml:
<speech type="cmdline" data="spd-say '%s'" />

or "spd-say -l fr '%s'" for using the French voice for example.

Script to download OSM maps

Wurp wrote a little python script to download all OSM maps within a lat/long rectangle. Just copy the script to a file called dlOSM.sh, chmod +x it, and run it like

dlOSM.sh <minimum latitude> <maximum latitude> <minimum longitude> <maximum longitude>

It takes a long time for large maps. I could optimize it some by having it try to get a big section at once, then if it fails, break it into smaller pieces and recurse. I'm not sure when/if I'll get around to that...

dlOSM.sh:

 #!/usr/bin/python
 
 import os
 import sys
 #import math
 
 def doIt(cmd):
   os.system(cmd)
 
 def getOsms(basename, minLat, maxLat, minLon, maxLon):
   '''basename - base name of map, maps are named {basename}{count}.osm
      minLat - latitude of the west side of the map
      maxLat - latitude of the east side of the map
      minLon - longitude of the north side of the map
      maxLon - longitude of the south side of the map'''
 
   wgetCmdTemplate = 'wget -O %s%s.osm http://api.openstreetmap.org/api/0.5/map?bbox=%s,%s,%s,%s'
 
   currLat = minLat
   mapCount = 0
   while currLat < maxLat:
     nextLat = min(currLat + 0.1, maxLat)
 
     currLon = minLon
     while currLon < maxLon:
       nextLon = min(currLon + 0.1, maxLon)
 
       doIt(wgetCmdTemplate % (basename, mapCount, currLon, currLat, nextLon, nextLat))
 
       currLon = nextLon
       mapCount = mapCount + 1
 
     currLat = nextLat
 
 (minLat, maxLat, minLon, maxLon) = map(float, sys.argv[1:])
 getOsms('map', minLat, maxLat, minLon, maxLon)