Sanderd17 has commented on the following diary entries

Post When Comment
I am looking library to access OSM data from Visual Studio or Android 5 months ago

Not exactly what you asked, but something like this could be handy too:

Though the last update was in 2012.

Hallo about 1 year ago

Sometimes you also can get reactions that you're mapping too precise. But the limit is quite a bit higher (if you see that in Germany, a lot of trees are mapped).

The biggest advantage of OSM (for me) is exactly that it's open. I can download the data, and display every feature on a map how I want it.

If you're interested in the technicalities, you can make your own maps with f.e. tilemill from Mapbox: (although importing the OSM data can be a though job sometimes).

What to do with general "notes" ? over 1 year ago

If it's from anonymous users, I would just close it. They won't get a notification anyway, as they have no e-mail registered.

If it comes from a normal users (even without edits), I would try to explain what Russell said.

Editing: OSM's website vs Quest Map Open? over 1 year ago

Nothing fishy about it. MapQuest has very bad data when it comes to other countries than the US. So they like to use OSM data for this.

In return, and for their own profit, they allow you to edit OSM data directly from the MapQuest site.

So it's a genuine effort, but I don't know if it's technically best. Btw, Potlatch on OSM isn't perfect either.

Just started mapping actively in Brisbane - I have a few questions! over 1 year ago

To check alignment, fire up your GPS, walk around on some open place you know (like a parking, so you have a good reception), and remember where you walked (which side of the track etc).

Upload the GPX trace (you have to export it some way from your GPS) to OpenStreetMap, and check if there's a constant deviation of the imagery vs your trace.

It's normal that your trace is a bit imprecise, but if you see a 5m shift for your entire walk, you can assume the imagery is misaligned 5m.

On the other hand, a little shift isn't that bad. As most GPS devices aren't precise anyway, a 5m shift won't matter. And it can be fixed in the future when even better images will be available.

I've noticed that the closest zoom images are older, and have a bigger shift (at least in Belgium). So you should probably drag your outlines to comply with the second-closest zoom.

Stuck with a dinosaur. over 1 year ago

If you buy something yourself, I would go for a smartphone. Certainly Android is well supported here.

You can do more mapping stuff with a smartphone than with a navigation device. And they're becoming really cheap (to €100).

A car navigation device isn't any good for mapping, and hiking devices are a lot more expensive. Sure, they have a better build quality, but you don't need that when you're just mapping on the road.The GPS signal of expensive devices is also better than the signal of cheap devices, but aerial pictures can help you solve that problem.

(Not yet) 1000 addresses over 1 year ago

Great work. As you notice, you can do 100 in a day, so the number 1000 isn't something impossible to reach.

If you do it one day a week, you'll be done in less than 3 months. Quick isn't it?

Btw, you can see your stats at (just fill in your user name). It looks like I have 5000 addresses added.

Newbie over 1 year ago

Welcome here. Don't be shy to edit the map. Just zoom to where you live and add anything you want (roads, pubs etc).

Also, if you want to introduce yourself to some more local mappers, or get local help, subscribe yourself to a local mailing list: (note that some might be busy, but you can always unsubscribe).

And be sure to check our wiki and your local project to see where to local community can get some help, and how you can do it:

Regards, Sander

New OSM-PH Logo over 1 year ago

The best local logo there is.

testen over 1 year ago

En, is de test gelukt?

De bedoeling van OSM is natuurlijk dat je de kaart aanpast. Als je niet weet hoe, dan kunnen we je gerust helpen (stuur een prive bericht, ik krijg geen meldingen van nieuwe comments).

Did a second edit to fix the errors in my first edit over 1 year ago

Hmm, using JOSM for your first edits. Watch out with that. JOSM is very powerful, as they say: "it gives you enough rope to hang yourself".

Maybe it's better to start with the online editor Potlatch, compare the defaults of Potlatch with the "advanced view". When you know enough tags as displayed in the advanced view, you can switch to JOSM, as it are those tags you need for JOSM.

If you just want to search for a tag for that one feature you can't map, use our wiki:

Thanks for the contributions btw. Names are definitely needed, as that's what we can't see from aerial pictures.

Correction sur carte velaux over 1 year ago

Bonjour Legueux,

bienvenue chez OSM. OSM est un projet cartographique complètement différent. Dans OSM, ce sont les utilisateurs qui créent la carte. Si vous allez voir la carte, vous pouvez appuyer "modifier" (ou quelque-chose comparable, dépendant de votre langue).

Dans la mode de modification, vous pouvez changez tout que vous voulez. Vous pouvez dessiner des nouvelles rues, vous pouvez sélecter une rue, et donner un nom. Ou tant d'autre choses.

Voir la guide complète ici:

Merci en avant pour nous aider, Sander

Swimming Pool Covers and Rollers over 1 year ago

Spam spam eggs and spam

We need to gamify over 1 year ago

I agree with you, Robert.

It doesn't only depend on the things added, but also on the resources available.

I remember, when we had no images available, I mapped a single building by doing GPS tracing while walking straight towards the building corners. This was multiple days work. Now, I can add hundreds of buildings per day. But buildings without extra information (like address) don't hold much value.

Now, there are still regions without good images, so where building are a lot of work and should be valued highly, but in a lot of areas, this isn't the case anymore.

So even if you would succeed to award more points to one feature than to an other (which would be a lot of work), it would have to change per region.

I think the tools we have are good. They're not too easy to find, so people who can't be bothered with gamification don't get them "in their face". But for people who really want it, they can look up the stats.

We need to gamify over 1 year ago

There's an OSM fight: Or personal statistics (which can be compared): In the stats, you can also see the biggest editors of the day, week or month:

So there is a bit of gamification, but we shouldn't advertise it too much. As it's not our meaning to produce as much changes as possible (with armchair mapping, you can improve data quickly and cause a lot of changes), but it's our aim to make sure people go out and map what they see outside. Data that can't be simply derived from satellite images, and that can't be found on other maps.

The chat could maybe be handy, but I think that the internal messaging system is good enough as it is now. In any way, I never work via the OSM site anymore, so you would have to include the chat in all editors available, I don't think this is possible.

New User over 1 year ago


How were you using the data? Via an app or so?

Let's Map Qursaya over 1 year ago

Mapping isn't that hard. If you're dedicated, you can easily do a place of 5000 inhabitants on your own (if they are a bit concentrated that is).

My village is bigger than the island you showed, and I did it mostly on my own (even in the days without aerial images). Detailed to every single address.

You should first map the most important things: roads, paths and POI. Landuse looks nice. But satellite images offer the same filling of land.

With those roads, paths and POI, the names are also very important. Names make sure people are able to find stuff on the map.

Also, if you want to become a power editor, I suggest you look into the power tools. JOSM is a bit more complicated than Potlatch, but it works so much faster.

I wish you good luck. And be sure to promote OSM, even if not for your own island. It could still be handy when you want to travel somewhere ;)

Datenumfang over 1 year ago

alles ist schon besser als vor der Lizenzwechsel. Es dauerte weniger als einen Monat

Problematik Bürgersteige over 1 year ago

I haven't mapped any sidewalks (to avoid the problems mentioned here), but I agree that pedestrian routing should happen over surfaces rather than lines.

So what we should do is, instead of mapping the footway paths, we should map the footway surfaces, the road surfaces, and the barriers between them (buildings, curbs, walls ...). So that routing software knows, if they are connected, and that connection isn't a major barrier, you can go from the one to the other surface.

I did have to "invent" a footway once. A walking route went through a meadow, but there wasn't a path there (just a few poles showing the way). But to add it to the relation, I needed a way. In fact, the entire meadow (and every meadow) should be routable for pedestrians (but with limited access restrictions). Given that the barriers (such as fences) are also mapped.

Of course, this needs extra data, and extra calculation power, but according to the Moore's law, this can't be too much of a problem.

Severe flooding over 1 year ago

The normal river boundaries is the line of "average maximum water height". Comparable to the shore line on the sea.

So we don't tag exceptional floods, but if water comes regularly to a certain point, then the river boundary is there.

Of course, regularly can be quite ambiguous, but let's say, if you don't expect it to be there on a normal day, it doesn't regularly get there.

Of course, you can tag fields and wetlands through the river. There's no problem with that. See this as example: