User:Kocio/low zoom rework
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❦ OpenStreetMap Carto low zoom project ❦
Export Europe from OSM.by
UN languages
Official UN languages (see it for geonames: https://unstats.un.org/unsd/geoinfo/geonames/) cover probably majority (57%) of people that can read (about 85% out of ~7,2 mld -> ~6,12 mld) - ~3,518 mld using rough numbers of total speaking:
- Arabic (name:ar) - ~422 mln
- English (name:en) - ~983 mln
- Spanish (name:es) - ~527 mln
- French (name:fr) - ~229 mln
- Russian (name:ru) - ~267 mln
- Chinese (name:zh) - ~1,09 bln
We can use them for the biggest objects on Earth, just by selecting these names in SQL (it's just what int_name could be). Example (ar/en/es/fr/ru/zh):
- المحيط الأطلسي / Atlantic Ocean / Océano Atlántico / Océan Atlantique / Атлантический океан / 大西洋
Biggest objects
- Continents (place=continent) - z2:
- Africa - http://www.openstreetmap.org/node/36966057
- Antarctica - http://www.openstreetmap.org/relation/2186646
- Asia - http://www.openstreetmap.org/node/36966065
- Australia - http://www.openstreetmap.org/node/5107738422
- Europe - http://www.openstreetmap.org/node/25871341
- North America - http://www.openstreetmap.org/node/36966063
- Oceania - https://www.openstreetmap.org/node/249399679
- South America - http://www.openstreetmap.org/node/36966069
- Oceans (place=ocean) - z3+:
- Arctic Ocean - http://www.openstreetmap.org/node/305639710
- Atlantic Ocean - http://www.openstreetmap.org/node/305640306
- Indian Ocean - http://www.openstreetmap.org/node/305640074
- Pacific Ocean - http://www.openstreetmap.org/node/305640005
- Southern Ocean - http://www.openstreetmap.org/node/305639157
- Seas (place=sea - 120) - https://en.wikipedia.org/wiki/List_of_seas
- Mediterranean Sea - http://www.openstreetmap.org/node/305640275
- Mountain ranges (natural=mountain_range - 180) - https://en.wikipedia.org/wiki/List_of_mountain_ranges
- Deserts (natural=desert - 1 760) - https://en.wikipedia.org/wiki/List_of_deserts_by_area (27 big)
- Rivers (waterway=river - 1 015 905) - https://en.wikipedia.org/wiki/List_of_rivers_by_length (179 big)
Old issues
1. Names
- Should we show continents labels at all? (fr: 1-2 + 3-4 with tolerance 20)
- Countries 2-zmax/6? (fr: 2-5 with tolerance 10)
- States 4-zmax (fr: 5-8; 5-6 with tolerance 10, 7-8 with tolerance 15)
- Capitals 5-14 (fr: 4-14;
- 4 normal
- is_capital: city/town cases)
Quirks: Canada name
2. Borders
- 1-3 are good (country only),
- 4-6 are hardly recognizable (country+state)
- 7 is good again
- fr are broken, but better visible
Quirks: Jordania
3. Physical landcover
- prerendered shapes from differet sources - to which one zoom level
- fr: not nice everywhere - forest is good, desert is too strong, ice is too weak, lack of mountains
4. Highways
Related issues
- boundary=administrative, admin_level=4 labels obscures place=city labels
- borders at zoom 4-6
- Lake Ontario does not render at zoom 5 or below
- Order placenames by population and substitute NE usage on low zoom level...
- Maritime borders too prominent
- Stop rendering nature-reserve-boundaries on z7
Resources
- osm-carto code (placenames.mss)
- French style (placenames.mss)
- German style (placenames.xml.inc)
- List of CartoCSS projects
- How to extract planet.osm.pbf with just objects visible at zoom levels 1-6?