Difference between revisions of "Maemo"

Revision as of 23:16, 26 February 2009

Installing Navit on the Nokia n770/n800/n810

General instructions

1. Install Navit. There are various sources:
   1. Navit on Maemo.org with point-and-click-installer
   2. The deb packages also can be downloaded via the download section of navit-project.org
   3. Some (currently rather dated) binaries created march 2008
2. Get maps:
   1. For European users, Marco Polo Grosser Reiseplaner could be a choice, as the project will gain a little income from your purchase.
   2. openstreetmap is a community driven, wiki like world map. There are several sources where you can download Navit maps based on openstreetmap data.
   3. It is possible to use Garmin maps
3. Configure Navit by editing its XML configuration file, e.g. in xTerm:
   1. Search for the file navit.xml as superuser root
   2. Create a folder called .navit in your user directory
   3. Copy navit.xml there and edit it
   4. Replace the path to the map file to fit your device and configuration:

<mapset enabled="yes">

<map type="binfile" enabled="yes" data="/media/mmc2/map/planet.bin"/>

</mapset>

Compiling Navit from source

Some of us are not content with using pre-compiled packages. Here then are links to building Navit from source using Scratchbox and OE/Bitbake:

Using OpenEmbedded/bitbake

Using Scratchbox and Maemo SDK

Configuration options

• Navit offers several GUIs. If you are not pleased with the GTK GUI, maybe you want to use the "internal" GUI. You can switch it on via the navit.xml configuration file.

The n810 for driving is best used with the internal GUI. it is not entirely obvious how to configure the OSD options required to show information. The way to configure navit changed in Navit svn1979 The below is an example of laying out the information on an n810

<osd enabled="yes" type="text" label="${vehicle.position_speed}" x="5" y="46" font_size="800"
   w="200" h="55" align="4" background_color="#1b0877cc"/>
<osd enabled="yes" type="text" label="ETA: ${navigation.item.destination_time[arrival]}" x="-220"
   y="46" font_size="500" w="215" h="40" align="4" background_color="#1b0877cc"/> 
<osd enabled="yes" type="text" label="Left to Go" x="-175" y="87" font_size="400" w="170" h="40"
   align="4" background_color="#1b0877cc"/>
<osd enabled="yes" type="text" label="${navigation.item.destination_length[named]}" x="-200" y="128"
   font_size="550" w="195" h="40" align="4" background_color="#1b0877cc"/>
<osd enabled="yes" type="text" label="${navigation.item.destination_time[remaining]}" x="-200"
   y="169" font_size="550" w="195" h="40" align="4" background_color="#1b0877cc"/>
<osd enabled="yes" type="text" label="In ${navigation.item[1].length[named]} " x="-320" y="-86"
   font_size="650" w="235" h="45" align="4" background_color="#1b0877cc"/> 
<osd enabled="yes" type="navigation_next_turn" x="-85" y="-106" font_size="500" w="80" h="65"
   background_color="#1b0877cc"/>  
<osd enabled="yes" type="text" label="onto ${navigation.item[1].street_name}" x="-555" y="-40"
   font_size="550" w="550" h="35" align="4" background_color="#1b0877cc"/>
<osd enabled="yes" type="text" label="${navigation.item.street_name} 
   Max:${tracking.item.route_speed}" x="5" y="5" align="0" background_color="#1b0877cc" font_size="550"
   w="790" h="40"/> 	
<osd enabled="yes" type="gps_status" x="5" y="101" w="50" h="40" background_color="#1b0877cc"/>
<osd enabled="yes"  type="button" x="5" y="-120" command="zoom_in()" src="gui_zoom_in.png"/>
<osd enabled="yes"  type="button" x="60" y="-60" command="zoom_out()" src="gui_zoom_out.png"/> 
<osd enabled="yes"  type="button" x="5" y="-60" command="gui.fullscreen()" src="gui_fullscreen.png"/>
<osd enabled="no" type="speed_warner" x="-60" y="180" w="60" h="60"/> 
<osd enabled="no" type="button" x="0" y="0" command="gui_internal_menu" src="menu.xpm"/>

gives:

Note the above linewraps are added to make it display nicely, but you'll want each osd items as a single line in the navit.xml file The important settings are w (width) and h (height) which allow you to set the boxes big enough to then use a large font. I'm using 550 point to be able to comfortably read the information whilst I'm driving. Also this layout only looks right full screen.

The new style has type="text" which are effectively free text fields that understand \n for newline and a number of variables which get switched for information values. eg ${navigation.item.destination_time[arrival]} shows the time at which you are expected to arrive at destination. All the text is added for my own preference as a first pass. Please add additional layout variations that you'd like to share.

To make updating this item easier, and maybe sharing different OSD setups easier you can replace the OSD entries in navit.xml with:

<xi:include href="/home/user/.navit/navitOSD.xml"/>

Then you can create a new file navitOSD.xml in which you place all the OSD items. This means you can create and share layouts by providing just the navitOSD.xml file and people can drop them into place without having to hand edit their navit.xml files. The same trick will work for any subset part of the navit.xml file

I'll try to update this when I figure out new settings, and keep it showing a reasonable setup for the n810

---Daniel Would

Here's another option with each item in its' own text box. The layout also works without overlaping when in windowed mode.

<osd enabled="yes" type="compass" x="5" y="5" font_size="250" w="60" h="62" background_color="#48852faf"/>
<osd enabled="yes" type="gps_status" x="70" y="5" w="50" h="40" background_color="#48852faf"/>
<osd enabled="yes" type="text" label="${vehicle.position_sats_signal}/${vehicle.position_qual}" x="70"
   y="45" font_size="300" w="50" h="22" align="0" background_color="#48852faf"/>
<osd enabled="yes" type="text" label="${vehicle.position_speed}" x="5" y="72" font_size="400" w="115"
   h="35" align="4" background_color="#48852faf"/>
<osd enabled="yes" type="text" label="ETA: ${navigation.item.destination_time[arrival]}" x="5" y="-220"
   font_size="400" w="170" h="30" align="4" background_color="#1a6ad780"/>
<osd enabled="yes" type="text" label="Left to Go" x="5" y="-185" font_size="400" w="170" h="30" align="4"
background_color="#1a6ad780"/>
<osd enabled="yes" type="text" label="${navigation.item.destination_length[named]}" x="5" y="-150" 
   font_size="400" w="170" h="30" align="4" background_color="#1a6ad780"/>
<osd enabled="yes" type="text" label="${navigation.item.destination_time[remaining]}" x="5" y="-115" 
   font_size="400" w="170" h="30" align="4" background_color="#1a6ad780"/>
<osd enabled="yes" type="text" label="In ${navigation.item[1].length[named]} " x="5" y="-40" 
   font_size="500" w="235" h="35" align="4" background_color="#000000c8"/>
<osd enabled="yes" type="navigation_next_turn" x="245" y="-45" font_size="500" w="60" h="40"
   background_color="#000000c8"/>
<osd enabled="yes" type="text" label="onto ${navigation.item[1].street_name}" x="310" y="-40"
   font_size="500" w="485" h="35" align="4" background_color="#000000c8"/>
<osd enabled="yes" type="text" label="${navigation.item.street_name}" x="150" y="5"  font_size="500"
   w="500" h="35" align="0" background_color="#ff71004b"/> 
<osd enabled="yes" type="button" x="-60" y="0" command="zoom_in()" src="gui_zoom_in.png"/>
<osd enabled="yes" type="toggle_announcer" x="-65" y="95" w="60" h="60" background_color="#1a6ad700"/>
<osd enabled="yes" type="button" x="-60" y="200" command="gui.fullscreen()" src="gui_fullscreen.png"/>
<osd enabled="yes" type="button" x="-60" y="-105" command="zoom_out()" src="gui_zoom_out.png"/> 

gives:

This gives a nice display with (to me) similar information grouped by color. However, the text can be difficult to read, so I have changed all the background colors to 000000c8. Very readable and still slightly transparent.

The speaker icon is to toggle the announcer on/off (color is 00000000, transparent), but isn't working at this time.

I am also using some changes suggested by Daniel Would which change the navigation to same size as the street, and place the blue line on top of the street.

---lemmyslender

Icon source setting for OSD

The N8x0 platform (and possibly others) is not very supportive of .svg image files. Navit on the other hand relies heavily on svg. The result is often missing images from your display. In the examples above you may need to replace the .svg with .png. The solution for Next Turn is to use the following config addition:

<osd enabled="yes" type="navigation_next_turn" x="325" y="-135" w="150" h="100" align="15" 
background_color="#a60c0f00" icon_src="$NAVIT_SHAREDIR/xpm/%s_wh_48_48.png" />

Note the icon_src parameter specifies the template for the image file names. This should work for all OSD items.

Using Tracks

• It is possible to make Navit recording and displaying a track. First let Navit record the track in the vehicle section, then add the resulting file to the mapset section:

<log type="textfile" data="/home/user/.navit/tracks/ActiveLog.txt" flush_size="1000" overwrite="30" />

...

<map type="textfile" enabled="yes" data="/home/user/.navit/tracks/ActiveLog.txt"/>

Using Navit

If everything went fine, Navit can be started from the menu and you should see the map on the display. In the upper panel of the tablet, you should see a satellite icon with a green tail, indicating that your device has a GPS fix. If so, Navit should show your current position on the map.

Starting GPSd manually

Navit does not necessarily start the GPS subsystem (driver and gpsd) on the Tablet. Therefore you need to do this by starting another application (Map, Gpxview) which is capable of starting it. This "helper application" needs to run as long as you want to use Navit.

As of SVN 1843 (Dec 19, 2008) Navit for N800 will autostart gpsd if your GPS BT receiver is on. For N810 this will work with the internal GPS receiver as well.

Starting GPSd automatically

Some additional details (Nov 28, 2008): I spent an evening getting Navit working on my N800, here are what else you need to do on Diablo with a Bluetooth GPS

1. Install bluez-utils-test, have to get this from a Chinook repository for now
2. Follow the instructions here [1]

As of SVN 1843 (Dec 19, 2008) Navit for N8x0 will autostart gpsd for you, at least on the device itself. If you are running Navit under Scratchbox then you will need to get gps data from somewhere. On the ARMEL target, there does not seem to be a way to connect to gpsd running elsewhere. If running under the X86 target, running gpsd under your native OS will allow gps data to get to Navit.

Notes

• The navit project has a project page on the maemo garage site, https://garage.maemo.org/projects/navit/. But we are considering discontinuing this as it duplicates most or all of what this wiki is about.
• The first binary version of navit for the Internet Tablets was created on another site, http://www.tecdencia.net/navit/.
• We (dwould, gerritv) are now one of the admins for http://maemo.org/downloads/product/OS2008/navit/. In the 2 hours since this was activated for Click To Install from the daily SVN, there were already 7 downloads!