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Posted by nm7s9 on 1 April 2008 in English.

I totally agree with netman55 about the problems with tracing from imagery.

To get the street names and even more importantly the "onewayness" of the street, you do actually have to drive the street.

As a bonus you can even start to populate the POI database , E.G toilets, parking areas, parks , hospitals, pharmacys, schools etc.

Posted by netman55 on 1 April 2008 in English.

Some of the areas have been mapped out remotely using satellite views, however on the ground things are somewhat different. Having done a walk around Gravesend today, quite a few road have missed, roads put in where there are none. The main problem is that shadows on the image causes errors to made.

Seems a shame that someone has taken a lot of time and effort to map out ways from
an image, only for then someone, me in this particular case, to rework lots of areas.

Another problem I have noticed is that the some of the imagery is quite old, some
I have seen is at least two years out of date.

So take care when using satellite views for mapping, try to use other sources as well if that is at all possible.

Location: Gravesend Town Centre, Milton, Gravesend, Gravesham, Kent, England, United Kingdom

It's easy to collect GPS track logs when driving around running errands. Since I'm in the US, I don't need to gather street names for most streets; I just need tracks to align the Tiger data.

The easy thing to do is turn on my GPS logger, set it on the car dashboard, and drive around. When I get home, pick it up off the dashboard and turn it off. Easy to do, but only one problem: I am paranoid, and I don't want every public tracklog showing my driveway. Yes, it is probably silly, but there it is.

One choice is to not turn on track logging until I am a block or two away from home, and then turn it off a block or two before getting home. It works, but it can be distracting while driving. I could also edit the GPX file with a text or xml editor, but that is repetitive and boring.

The best solution is GPSBabel, which is made just for this type of thing. It has a processing filter which can include or exclude points that lie within a boundary which you define.

I'm already using GPSBabel to translate my GPS tracks from the Coto Palm GPS software into GPX format, so I figured this would be an easy addition to the process. It took more work than I expected, because of an obscure detail in the processing. GPSBabel only wants to apply the filtering to defined waypoints, and not to tracks. Fortunately, GPSBabel itself can solve this problem, too. I told it to translate the tracks into waypoints, filter, then translate back to tracks. It added waypoint names for every track point, but I could easily delete those.

The end result is a shell script looking something like this:

F=$1

NewFileName=` echo $F | sed -e 's/\.pdb$//i' | tr ' ' '_' `.gpx

#Convert trackpoints to waypoints, for exclusion to work,
# then convert back

See full entry

I've been gathering GPS tracks for downtown and southeast Beaverton. While I have not covered anywhere near every street, I have covered enough to see that the Yahoo aerial photos and USGS Urban Area aerial photos are aligned quite well with the GPS tracks. All the rest of the streets in the area can be interpolated from the photos.

Location: Central Beaverton, Beaverton, Washington County, Oregon, 97005, United States
Posted by Graham Asher on 31 March 2008 in English.

I supply a map rendering and route-finding library called CartoType. I've now written a tool to convert OSM data to CartoType's native data format, which is very compact (the whole of Greater London fits in 6MB). This means that using map viewing programs that I shall put up on the CartoType web site (www.cartotype.com) anybody will be able to use OSM-derived maps on Windows Mobile devices without the need to be on line to the OSM server.

CartoType runs on ordinary Windows (XP etc.) Windows Mobile, Symbian OS and Palm OS.

Posted by ph_import on 31 March 2008 in English.

We are currently uploading POIs for Metro Manila provided by jklinc of the http://www.freewebs.com/phroadguide/

Once this is complete, we have added more than 7,000 fuel stations, fasfood, buildings points, etc into the database.

There maybe duplicates and location errors so please feel free to verify and edit accordingly.

Location: Poblacion, District I, Makati, Southern Manila District, Metro Manila, 1210, Philippines
Posted by ph_import on 31 March 2008 in English.

The City of Naga provides public domain wms/wfs for the whole city.
osm.org/?lat=13.62492&lon=123.19091&zoom=15&layers=0BFT
http://gis.naga.gov.ph/nagacity_data.map
Thanks to Ivansanchez, we were able to import the dat to OSM. The features includes roads, rivers, railroads, schools, hospitals. More will come later.

However, some previous data we already uploaded by another contributor. This should be edited as there are duplicated ways as a result off the import.

Location: Tinago, Naga, Bicol Region, 4400, Philippines
Posted by ndm on 30 March 2008 in English.

It was going so well, the sun was shining and I was finally adding in a couple of annoyingly missing residential roads, and mapping a few footpaths, etc.

Then I took a bridleway too far. I'm not sure quite how I should map it "surface = swamp" doesn't really express the 2 foot depth of wellington sucking mud. Unfortunately, about halfway I stopped making forward progress, and gently keeled over sideways into the quagmire. Fingers crossed that the phone and GPS logger have survived their unforeseen dunking. It's the first time I've had to prewash clothes with the garden hose :-)

Location: Baughurst, Wolverton Townsend, Basingstoke and Deane, Hampshire, England, United Kingdom
Posted by stereo_steve on 30 March 2008 in English.

Hello all,

I found this site yesterday while looking at the Google Summer of Code project list.

I'm really impressed by this project and the success that it has had so far. I will definitely be helping out with this project in any way that I can.

Yesterday I posted a message on boards.ie in the GPS section, Ireland's largest forum. Hopefully it might get some others involved.

http://boards.ie/vbulletin/showthread.php?t=2055264820

Looking forward to seeing the maps getting more and more detailed!

Stephen.

Posted by Donald Allwright on 29 March 2008 in English.

Spent this afternoon with Jon Schneider and another friend mapping part of Soham. Fairly successful exceot that our local host and tea provider decided not to be at home and we couldn't connect to his wireless access point from outside his house to enter the data. That and the two-way radios we were using didn't really have enough range to be useful while on foot. Three people, 3 laptops with 3 operating systems, 3 mobile phones and what seemed like a vast array of technology that should enable connectivity so we felt somewhat inadequate!

There's still a lot of Soham to do, it would have been better to cycle it rather than walk it. Will have to make a return visit or two, then on to the villages of Haddenham, Aldreth, Wilburton and Stretham which also need a fair bit of work.

Location: Soham, East Cambridgeshire, Cambridgeshire, Cambridgeshire and Peterborough, England, United Kingdom
Posted by PurpleMustang on 29 March 2008 in English.

When someone asks me what I did yesterday, well I just have to tell them. I spent the day making a map. I didn't think I would spend the entire day tracing GPS tracks but I did. From the first up load at noon, till the last at 9:30, It was even a nice -4 sunny day too. 32 trace files uploaded. 22,612 data points which means I just added about 226 km of new roads to OSM.

I'm even getting the hang of JOSM. I found my self fixing mistakes in the current map set. Not bad for someone who 2 weeks ago wasn't able to draw 2 sticks on the screen.

Well it's another warm -4 sunny day, time to get out and enjoy the sunshine.

TTFN

Andrew

Location: Southwestern Ontario, Ontario, Canada