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Posted by colonia on 14 February 2008 in English.

last week I have mapped a residential area in Köln Mauenheim with most of the streets beeing living_streets (Spielstraße).
Now, everything is rendered (both with Mapnik and Osmarenderer) but not in a really satisfactory way, it looks like the streets are rendered using the same color as the residential-landuse color.
map

To my surprise, power lines and power towers are now rendered in some Mapnik zoom levels. thanks! Is it possible to render power sub-stations as well?

Location: Mauenheim, Nippes, Cologne, North Rhine-Westphalia, Germany
Posted by Richard on 14 February 2008 in English.

It's now 3.19am and I can't let the last two nights' effort go without showing something of what I've been working on...

There's huge amounts of code tidying to do, plus calibration for every single sheet, before I can get England and Wales complete and ready to upload. And even this is only on one zoom level (14). But it all gets easier from now on!

For the past weeks I've been using public domain maps in mapping roads in Mindanao.
osm.org/user/maning/diary/951

Now most major roads are visible in the map.

osm.org/?lat=7.54&lon=125.3&zoom=8&layers=B0FT

3 tags are added: highway, FIXME and source.

I have a rough documentation on the process (will add more detail in time).
osm.wiki/index.php/OSM_Philippines_Data_Import

Overlaying ways on LANDSAT, I'm not really satisfied with the results some ways are way off by tens of meters. But the general geometry is OK. I will be editing further using landsat. Is there any way to cache landsat for offline JOSM editing?

cheers,

maning

Posted by diogow on 13 February 2008 in English.

Ok, now, a lot of stuff got done these last 2 days:

- Offline mode ! Yes ! Now I can browse the map without actually overloading the server at every single request. It's very slow, though, I have to improve the way I load the map data into the memory. On the plus side, for a 15 sq km area from my central location, I only download 427 KB off the server, and it's a one-time download.

- Only draw ways that matter depending on your zoom level, so if your looking at the city from very far, you only see the main roads. As you increase the zoom level, the minor roads are drawn too. Remember that I'm drawing this dynamically all the time, I'm not downloading tiles from the server, you only connect to the server once.

- Some other minor stuff: Drawing the nodes on the map (depending on zoom level); proper aspect ratio calculation when drawing the map, so if you have a non-square screen on your cell, you see the map without distortion; keyboard-based browsing of the map, including zoom in, out and gps lock.

That's pretty much it.

I'm still trying to figure out a way how I can release the source code and the program and still make money from it, but that's for another topic some time.

Still, a lot to go !

Good night,
Diogo

Location: Vila Gomes Cardim, Tatuapé, São Paulo, Região Imediata de São Paulo, Região Metropolitana de São Paulo, Região Geográfica Intermediária de São Paulo, São Paulo, Southeast Region, 03314-000, Brazil
Posted by chillly on 12 February 2008 in English.

Cottingham in East Yorkshire has been claimed to be the biggest village in England. It certainly feels like a town when you're trying to map it. I have now covered all of the roads and some of the footpaths. There are quite a few shops to add as amenities, but schools, churches and pubs should be all correct. There are a surprising number of footpaths (no cycling signs everywhere).

Location: Cottingham, East Riding of Yorkshire, Hull and East Yorkshire, England, United Kingdom
Posted by Richard on 12 February 2008 in English.

You can now choose from several background layers in Potlatch.

Go to the options window (the little "tick" near the bottom left), and you'll see that the pop-up menu which used to offer only 'Yahoo' and 'None' now offers:


  • OpenAerialMap
  • Yahoo
  • Mapnik
  • Osmarender
  • Maplint

OpenAerialMap is likely to be particularly useful. Not just because it's a great project in itself, but also because it uses the same low-res Landsat imagery as Yahoo - but enlarges it when you zoom in. So if you want to trace over enlarged Landsat, use this to replace the old Flash Player zoom.

(If anyone else has spherical Mercator GMaps-like tilesets that might work as a background image, let me know.)

Thanks to Christopher and Jon for configuring their servers (OAM/tah and tile respectively) so Potlatch can do this.

And for just one example of how it looks, go to osm.org/edit.html?zoom=16&lat=49.795&lon=15.445 and select OpenAerialMap!

Posted by ColinMarquardt on 11 February 2008 in English.

It just took an update of the DejaVu font on tile to have the local Georgian names rendered (thanks jburgess):
osm.org/?lat=41.539&lon=43.896&zoom=9&layers=B0FT

I was looking at the map sources on Wikipedia for მცხეთა/Mtskheta (http://tools.wikimedia.de/~magnus/geo/geohack.php?pagename=Mtskheta¶ms=41_51_N_44_43_E_type:city), and it seems OpenStreetMap is the only online map which shows Georgia in local script. Quite cool.

Location: Mtskheta, Mtskheta Municipality, Mtskheta-Mtianeti, Georgia