Thanks to the work of David Paleino, Debian packages for MoNav 0.3 are now available. monav-data and monav-client also have been successfully tested on Ubuntu. monav.openstreetmap.de has been updated accordingly.
Archive for April, 2011
Debian packages for MoNav available
Wednesday, April 27th, 2011GPS accuracy of osm2go on the N900 while mapping house outlines
Tuesday, April 26th, 2011A mapper who tried to map houses with osm2go (and who politely offered the above screenshot) asked whether the GPSr’s accuracy of the N900 was poor. The above screenshot suggests it is. For a couple of reasons, I doubt that the result would be (much) different using another device:
- GPSrs are usually optimized to provide more accurate positioning data during movement. While moving slowly (e.g. as a pedestrian), you will see worse results regardless of the receiver used.
- GPS reception is poor near walls. This behaviour also applies to devices like the WBT-201 or Garmin’s GPSMap. If possible, try to use a bike. Ride straight intersecting lines passing several buildings in one go instead of moving around each individual building.
- Mapping house numbers in cities by foot usually requires some guesswork when entering the data after the trip. The set waypoints usually are offset by several meters.
I’m using the N900 for over a year now, and I’m very content with it, as I was aware of the aforementioned issues. It is a bit inaccurate while hiking, but on the bicycle it’s almost perfect.
Can MoNav do bike routing between the Tauber and the Main valley?
Tuesday, April 26th, 2011MoNav 0.3 Released
Saturday, April 23rd, 2011Christian Vetter, the inventor and maintainer of MoNav, just announced the release of MoNav 0.3. Finally the improvements and new features developed during the last weeks and months are available as precompiled installers. Here’s a copy of the original posting:
—
Hello everyone,
I am pleased to announce the release of the 0.3 version of MoNav
[1][2][3] just in time for your favorite Easter holiday trip.
The highlights of this release are:
- UI Overhaul, take a look at the screenshots[4]
- Offline vector renderer: QTileRenderer[5]
- Better handling of map data and map modules: It is now very easy to switch between routing ( motorcar, bicycle, pedestrian ) and rendering modes ( online, offline vector… ).
- Full Maemo support
- Track logging
- PBF[6] support: 10 times faster OpenStreetMap data parsing!
- Console version of the preprocessor
- Improved import of OpenStreetMap data: surface, smoothness, barriers, …
- And many more
Of course MoNav still delivers blazingly fast routing, even for huge
graphs on mobile devices.
Downloads available[3]:
- Client binaries for Windows32, Ubuntu 32/64 and Maemo
- Map packages for most countries: pedestrian, motorcar and bicycle routing; online and offline vector rendering.
We are still looking for contributors in the following areas:
- GUI design
- Address Lookup ( Karlsruhe Schema, novel approaches … )
- Binary package maintenance for various systems / distributions
- Usability tests and improvements
- New features
- Of course other contributions are always welcome If you believe you can contribute and are interested in joining the development team please let us know.
Feel free to contact us on our mailing lists[7][8] or to post bugs to our bug tracker[9]
Disclaimer:
Please note that this project is under active development and while
considered stable may still contain serious bugs.
Comments, bug reports and suggestions are welcome and can be filed under [9]
Happy routing!
Christian Vetter
[1] MoNav Homepage: http://code.google.com/p/monav/
[2] MoNav at OpenStreetMap Wiki: http://wiki.openstreetmap.org/wiki/MoNav
[3] MoNav Downloads: http://monav.openstreetmap.de/
[4] MoNav Screenshots: http://code.google.com/p/monav/#Screenshots
[5] QTile Renderer: http://code.google.com/p/monav/wiki/QTileRenderer
[6] PBF at OpenStreetMap wiki: http://wiki.openstreetmap.org/wiki/PBF_Format
[7] MoNav mailing list: http://groups.google.com/group/monav-discuss
[8] MoNav developer mailing list: http://groups.google.com/group/monav-dev
[9] MoNav bug tracker: http://code.google.com/p/monav/issues/list
Can MoNav do bike routing from Wissembourg to Wasigenstein?
Friday, April 22nd, 2011I tend to visit some medieval castles in spring. I usually approach them by car and use the rest of the distance for some hiking. This year, I wanted to know whether I can reach Wasigenstein by bike, and once again, I wanted to test the bike routing capabilities of MoNav.
Here are some observations:
- I always thought that printed maps are still more useful when it comes to hiking, as they provide a far better overview of the area. But today I met two couples with printed maps who asked me for the right way. In one case, the printed map was simply wrong. In the other case, they followed some signs and passed the destination without noticing it. I guess that two male hikers will buy some kind of personal navigation device soon, and I also guess that the woman acceptance factor will not be a problem ;) . If you are searching for a great business idea, invent printed maps which are capable of displaying the current location on top of the map.
- The LCR is not made for hiking trails covered with roots and stones. But it’s a great bike on paved ways. I guess we will soon need more than one routing set for bikes…
- I took the train to Wissembourg and used MoNav to create the route to Wasigenstein. It really created a nice trip – though I wished it avoided some of the inclines :) . We have been discussing the integration of SRTM data into the preprocessor more than once. Technically it’s not an issue, but it would require some coding work, and the SRTM data set is rather huge.
- I recently hacked track logging for MoNav. What I need to do next is a trip computer, which provides information about the time and distance already traveled, and the remaining distance and duration. What would be excellent was the calculation of a height profile for both the track and the route. Did I already mention the size of the SRTM data set? Maybe I should search for online services to accomplish that.
- We have a lot of trails of that area in our openstreetmap data already. But there are still a lot of bits missing. Partly we have the smaller hiking trails available, but some forestal tracks are missing.
- The N900 and MoNav are a great combo. I switched the N900′s display off when not needed – the battery powered the device for about eight hours. Not that bad, especially when you take into account that MoNav recomputes the route every second.
- Being a bit tired, I took the road back to Wissembourg, where I entered the train after some supper. The section between Lembach and the Col du Pigeonnier (see the marker) broke my neck due to the incline. As a reward, the rest of the route down to Wissembourg was completely declining. A great joy :) .
Here’s the trip (height profile would be marvellous :) :
MoNav Mapsets updated
Friday, April 22nd, 2011
Graphic stolen from openclipart.org, public domain
Due to a nasty bug in the preprocessor, all mapsets for MoNav have been updated. If you tried maps which are west of 0° longitude, the updated maps are for you.
Can MoNav do bike routing from Karlsruhe to Strasbourg?
Monday, April 18th, 2011What a great april, at least concerning the weather! I decided to visit Strasbourg, the great medieval city where I haven’t been for over a year or so.
When bollards baffle bicycle routing
Wednesday, April 13th, 2011My last black forest trip by bike led me through Baden-Baden, and MoNav created an interesting route, avoiding the best one. At home, I figured out that bollards caused the weird behaviour. Actually MoNav didn’t route across nodes with any barrier tag applied.
I checked the code of the preprocessor, and allowing bikes to cross bollards was just simple. However, the preprocessed bicycle maps available for download all were of less use.
Some script currently recomputes all maps. For each region provided, you’ll only find one zip package instead of three. The zip file contains the following data:
- Address search.
- Online tiles (Mapnik style, internet connection required).
- Fast offline vector rendering (due to early code, no streetnames rendered still).
- Car routing.
- Bicycle routing.
- Pedestrian routing.
In case you do not need all of the routing data, just remove the folder you do not need after extraction. I hope these data sets will serve cyclists and pedestrians better than the previous ones.
2nd Black Forest bicycle trip 2011
Sunday, April 10th, 2011Just as yesterday, I grabbed the occasion for a black forest trip. Again I wanted to test the via points for routes I recently hacked for MoNav. I was creating the route while using the public transport to Baiersbronn, giving MoNav a couple of points I wanted to pass. With this new feature, MoNav more and more becomes the perfect companion for osm-addicted cyclists.
1st Black Forest bicycle trip 2011
Saturday, April 9th, 2011Due to the early summer days I did a trip to Rote Lache, a mountain pass between Forbach (Murg valley) and Baden-Baden. I arrived at the biergarten right at noon and ordered boiled beef with horseradish, a traditional meal which reminds me of my grand mother:
First Windows installer for MoNav available – Help wanted
Wednesday, April 6th, 2011Christian was able to fix a nasty bug which caused MoNav to crash during startup on Windows. I used the occasion to create an early NSIS Windows installer.
The installer contains experiental software, as I applied some quick and dirty hacks to get it compiled. It is thus not intended to be used by end users. As I’m rarely booting into Redmond OS, some developer who is savvy enough to maintain the NSIS installer is required to update the package every now and then. Contributors are always welcome!
MoNav@FOSSGIS 2011 fair, Heidelberg, Germany
Sunday, April 3rd, 2011FOSSGIS is a non profit organisation and represents both the local chapter of OSGeo and the german OSM community. This year’s conference takes place in Heidelberg, Germany.
Besides other talks, Christian Vetter and Dennis Luxen, the propellerheads behind MoNav and OSRM respectively, offer a talk about their products.
The biking season has started
Sunday, April 3rd, 2011The biking season finally started. April 2nd and 3rd 2011 were warm and sunny days, providing temperatures far above 20°C. Thus I used the bike to get to a birthday party 30km away. I used MoNav for bike routing, which served my very well thanks to our collaboratively collected openstreetmap data.
The party itself was held outdoors, thanks to the excellent weather conditions.
BTW: If you ever get a chance to play with GeoMag, then grab it. Even if you’re not a chemist:
Today I visited my favourite weekend destination, Wissembourg, France, using the great cross-border map I just created a couple of days before. A great day to enjoy alsacien food as a reward:
MoNav packages updated
Saturday, April 2nd, 2011Due to a nasty bug concerning the generation of tracklogs, I’ve updated all MoNav packages (Ubuntu i386, Ubuntu amd64, Maemo). The code is tested during two trips and behaves »as advertised«. Hint: On the N900, you’ll need to scroll down a bit in the preferences dialog to access the button to clear the tracklog (see the above hardcopy).
Desktop users do not need to update, as the desktop versions do not support GPS subsystems. N900 users should update the package as soon as possible.
Großdeutschland in MoNav
Saturday, April 2nd, 2011Living in Karlsruhe, Germany, I often found it annoying that my map data was cut along the german-french border, so I could only load either france or germany into MoNav. Of course, routing crossing the border was not possible this way.
Thus I created a map package using a bounding box which includes germany and adjacent areas. The exact coordinates used are top=55.0 bottom=46.0 left=5.7 right=15.1.
Additionally I’ve run the routing preprocessor three times, so the package contains routing for car drivers, cyclists, and pedestrians. This map is a must have for any german openstreetmap addict. Get germany-big-car-bike-foot.zip from the download page.














