OpenStreetMap

Circeus has commented on the following diary entries

Post When Comment
Local Knowledge 26 days ago

Sounds like it. With a description= tag noting how this is (as I understand from your post) an actual hazard.

Where have all the boundaries gone? 8 months ago

The problem is that relation-based boundaries cannot be rendered in a way that guarantees all the ways of the same admin_level will actually look the same. Bot to mention that you end up with a whole bunch of ways in the database with no tags actually indicating what they are.

The result is that a significant portion of the world's boundaries render poorly because of bad tagging.

Boundary relationships are a good thing to have, but using them for rendering turns out to have been a less-then-ideal decision.

US County boundary relations 8 months ago

There's something weird going on with California, though. Why is LA county bordered at the maritime state boundary, but (AFAICT) not Orange county?

Land Use versus Residential Private Property over 1 year ago

"there is very little markings within OSM specifically for laying out trails meant primarily for offroad vehicles - Quads, trikes, etc."

OSM assumes most "highway" are useable by motor vehicles, on foot and bicycle. Access tags should not be overlooked when dealing in this area! highway=track+access=no+ATV=yes

The only reason the ATV tag has not gained much attention is that all-terrain vehicles are little used overseas, but that doesn't mean that the basic rule of "when in doubts, use whatever new tag you think fits" has lost validity! (worst case, if another use become dominant, your original tagging will be changed to that other tag later on)

addr:housenumber en France over 1 year ago

Moi j'en ai (peut-être) une: La loi de Benford est connue pour s'appliquer aux adresses. Puisque les numéros commençant par 1 sont au final 7 fois plus nombreux que ceux commençant par 9, j'imagine qu'un plus grand nombre de 10 que de 9 n'est pas si surprenante, quoique moi aussi la raison en cause sur le terrain m'échappe.

Qu'est ce qui peut aller dans OSM (ou pas) over 1 year ago

Je suis bien d'accord concernant les bureaux de votes: de toutes façons, ce ne sont pas plus des éléments ni permanents ou même semi-permanents (du moins en Amérique du nord). En soi, cela même est suffisant pour les disqualifier entièrement!

Qu'est ce qui peut aller dans OSM (ou pas) over 1 year ago

Je croyais que la limite c'est "ce qui existe sur le terrain (sous entendu au dessus du sol) de manière visible"? Avec certaines incursions dans les trucs comme les frontières (car elles ont un impact et une certaine présence sur le terrains, même si ce ne sont pas nécessairement quelque chose de directement visible). En ce sens, les "zones de risque" et autre "zones de couvertures" ne sont pas valides car pas représentatives de trucs présents sur le terrains (contrairement à disons, un emplacement de caméra ou de hotspot wifi).

About Tags: need info about correct tagging rules in several languages about 3 years ago

Two keys have been introduced (though their acceptance is unclear), which can (presumably) use the :language extension forwhat you want todo: taxon and habitat.

Dammit almost 5 years ago

I'm regfering to diary entries, not the map XD

Identical relation conflicting almost 5 years ago

I completely agree about the usefulness of indicating postcodes, but I am dubious about the necessity of giving them separate relations when they are identical to an existing one. Just changing the boundary type would fix the problem, though. boundary=postal would likely be sufficient. After all these will almost certainly never be displayed on the default OSM map, so whatever value is chosen really doesn't matter much.

Just a general hello about 5 years ago

The US postcode is free, but IIRC, the USPS does not sell an actual complete version of it (private companies do, or try to, however).

Caved in... about 5 years ago

"The ability to add extra nodes on a way is very useful, somethig Potlatch cannot do."

What the hell are you talking about? Maj+Click is easy as pie :p

Caved in... about 5 years ago

Scratch it to my idiocy: I searched and searched and couldn't find the damn thing. I'll investigate further another time.

Missing Feature or Missing the Instructions? about 5 years ago

As a side not, the "US-78 US-29 GA-8" information would be put in the ref= tag.

Haldenbourg about 5 years ago

Baaah, à Westmount (Québec), les panneaux de rues ne disent même pas si c'est une rue ou une avenue!

Australian Postcodes.... about 5 years ago

Having a free half-hour, I have compiled a list of placenames corresponding to these DAs if that's any use.

Newbie - working on São Paulo - SP: Vila Romana, Agua Branca, Consolação and whatever more I can... about 5 years ago

You can use this page to keep track of your edits.

Housemapping is a madness about 5 years ago

The trick is to enter ranges whenever possible. If only because quite often not doing so makes it virtually impossible to fit anything (at least in North American where 4-digit housenumbers are a very common occurrence)

tertiary roads about 5 years ago

@Paul (your post wasn't there when I started): Mapnik actually displays highway=road differently from highway=unclassified/residential. Using tat tag would have resulted in the US being displayed different from any other country (which might have been a good thing: it'd have given US mappers a good excuse to hop on). ~~~~

tertiary roads about 5 years ago

It's about through traffic: if the road is a significant connecting road, but not quite up to secondary level, it's a tertiary. I think a good rule of thumb is to put county and low-use state roads as tertiary (most state road are secondary, though, and the major ones are primary), and leave the rest as residential (or unclassified, if you like that better).