OpenStreetMap

seav has commented on the following diary entries

Post When Comment
Globalizing the name translation debate about 2 months ago

@Stalfur, I also think that the original point also includes developing tools to use Wikidata with OSM data. There is no suggestion that we wholesale remove some name tags in OSM without having a concurrent usable tool in obtaining the data in those removed name tags.

Globalizing the name translation debate about 2 months ago

I think the original point of the mailing discussion is, why not put your Vietnamese translations into Wikidata instead of in OSM?

map styles: Default OSM vs Google Maps 3 months ago

The question is, what is the purpose of the default map style? From what I understand, this style is the mapper's style and is meant to show at a glance whether an area is already well-mapped or not. And at higher zoom levels, it tries to show POIs and other smaller details so that we can see if there are missing or outdated features. As such, it intentionally shows a huge amount of detail at various zoom levels.

Comparing this style with Google Maps might not be such a good idea. We can probably look to it as an inspiration for certain design decisions, but that's it.

OSMaPaaralan 7 months ago

I guess we can restart the discussions regarding this project.

But we still need to resolve the Google Maps coordinates issue first before we can proceed.

The trouble with the ODbL - summarized 9 months ago

For a supposed legal analysis, I was disappointed that the Centre of Spatial Law claims that there is no guidance on the licensing of the individual contents of the OSM database. I think they missed this part of the Contributor Terms (emphasis mine):

"OSMF agrees that it may only use or sub-license Your Contents as part of a database and only under the terms of one or more of the following licences: ODbL 1.0 for the database and DbCL 1.0 for the individual contents of the database"

While it may be confusing to have 2 different licenses for the database and the contents, I think this is warranted by the fact that there are 2 different legal concepts at play in Europe: database rights and copyrights.

OpenStreetMap birthday weekend (including wikimania etc) 11 months ago

Hey, Harry! I was really great to finally meet you in person. I really enjoyed my time in London and I hope I can visit again in the future. I didn't realize there was cake! I guess these were all already in people's stomachs by the time we arrived from Wikimania? :P

How do I indoor map my building? 11 months ago

http://wiki.openstreetmap.org/wiki/Indoor_Mapping

OpenStreetMap Isn't All That Open, Let's Change That and Drop Share-Alike over 1 year ago

For a nice discussion of GPL vs. BSD: http://www.matusiak.eu/numerodix/blog/2007/12/15/gpl-vs-bsd-a-matter-of-sustainability/

OpenStreetMap Isn't All That Open, Let's Change That and Drop Share-Alike over 1 year ago

As giggls said above, this is the GPL vs. BSD/public domain debate all over again. GPL vs. BSD is hardly resolved in the software world and you can point to success stories for both camps (Linux kernel for GPL, and BSD Unix for BSD, sqlite for public domain) and numerous pros and cons on both sides. The same arguments can be mentioned for OSM as well.

Hello, OSM! over 1 year ago

Great work in Luisiana! :-)

OSM mapping at regional or national scales: aiming at creating consolidated reference layers / La cartographie OSM à échelles régionales et nationales : l'objectif de créer des couches de référence consolidées over 1 year ago

Sounds like what I tried to do here: http://wiki.openstreetmap.org/wiki/Philippines/Geodata_detail_levels

My first OSM meeting over 1 year ago

Do you know about the talk-au mailing list? https://lists.openstreetmap.org/listinfo/talk-au

Bagong Simula almost 2 years ago

Hi Lester,

Kumusta?

Kagaya ng Google Map Maker, mayroon ring talaang pang-email ang pamayanang OSM sa Pilipinas. Kung interesado ka, makilahok ka dito: http://lists.openstreetmap.org/listinfo/talk-ph

May mga ilang bagay lang akong inayos sa mga binago mo sa Biñan at Carmona. Kung may mga tanong ka, puwede kang magtanong sa akin sa pamamagitan ng pagdala ng mensahe sa aking pahina. :-)

A new way of fast browsing of latest changes over 2 years ago

I think another vital tool is a way to easily analyze a single changeset. You should be able to see what objects were modified, created, and deleted. What the tags are on those objects and what modifications were done on those tags. How the shapes of objects changed. If ways were reversed, split, or joined.

The OSM History Viewer goes halfway there but I think it could be much much more.

Advanced rendering of tags over 2 years ago

Regarding my comment about the "projection scaling bug", I confirmed that this is indeed a bug due to the mercator projection not having a uniform scale throughout the map. Despite that, the courts are rendered in a uniform scale per zoom level. The courts look great in France but would have the wrong size in other latitudes.

I'm guessing that these courts are rendered as if they were SVG icons, but rotated to match the general orientation of the pitches. If we really want scale-correct courts, I think that would require some complicated processing in the PostGIS DB. But as a proof-of-concept, this initial rendering of courts is actually great.

Note: I'm not complaining, just pointing out (probably already known) oddities.

As for the meaning of "leisure=pitch", I was actually hoping to spark a discussion. But maybe it's best discussed on the tagging@ mailing list. :-)

Advanced rendering of tags over 2 years ago

It seems there's a projection scaling bug for the tennis courts. Here's a tennis pitch area, but the tennis court image is too big! http://tile.openstreetmap.fr/?lon=120.92389&lat=14.46284&zoom=19&layers=B00000

The tennis pitch there actually contains 2 tennis courts. Do we need to split up the leisure=pitch polygon into 2? I don't think we should, since it's just 1 pitch area.

Map of turn restrictions over 2 years ago

This is very useful! Thanks for creating this map. :-)

Renaming the Ottawa River Parkway over 2 years ago

You should add the tag old_name=Ottawa River Parkway to store the previous name.

Funeral Homes over 2 years ago

Well, a footway is not a highway but we have highway=footway.

I've learned that OSM life would be easier if we treat keys and values as just English-like words instead of actual English words. It would help prevent debate on whether something is supposed to be under "shop" or "amenity" or "leisure" or "tourism".

Bishopsgate mapping party about 3 years ago

Heh. The person doing much of the criticizing on the wikipedia mailing list thread you linked to is the same guy who's criticizing OSMF and the license change.