Back in March I posted a diary entry proposing to add basic support for disputed borders point-of-view (aka worldview) to OpenStreetMap. I was able to complete that work, primarily in March, April, May, and June of this year, by adding disputed=yes, disputed_by=*, claimed_by=*, and recognized_by=* tags. More work remains (see below), please contribute!
The open source Tilezen project was updated in June in v1.8 (changelog) to add support for the OpenStreetMap tags (view source). The Nextzen vector tile build now includes that data with circa 2019-July OSM planet file. Props to @Matt for the extensive work this entailed.
I released a new version of the Bubble Wrap map style for Tangram, using the Nextzen source to visualize these changes (PR #277). There’s now a “POV” point-of-view menu in the upper-right corner that will toggle the different visual treatments.
Above: Showing different boundary points-of-view for China, India, Pakistan, paired with label localization.
An overview of where I edited (and where I haven’t edited yet) is summarized below. I used Natural Earth (which I am the primary author, and v5.0.0-pre3) as a starting point. I encourage other OpenStreetMap editors to help refine the data according to further research and discussion. Next Nextzen planet update will likely be in December 2019 ;)
I used a combination of Overpass-Turbo select boundary features and JOSM to do the editing. My commits (under user @nvk) have the #disputed_by_claimed_by tag in comment messages.
// gather results
// query part for: “admin_level=2”
// print results
out skel qt;
Extent of Western Sahara claim with Morocco
Links go to Bubble Wrap with dispute in view. Use the “interactive” mode in the panel in the top right to then mouse over features (say at zoom 16) to “Edit in iD” to perform spot fixes.
Comment from Carnildo on 14 August 2019 at 23:15
I don’t think Guantanamo Bay Naval Base is a border dispute of the sort you’re trying to map here: the USA and Cuba both agree that the land is part of Cuba. The dispute is that the USA says they’re leasing land for a naval base from Cuba; Cuba says the lease was agreed to under duress and is void.
Comment from naveenpf on 15 August 2019 at 01:53
this is very interesting .. Added the link here https://wiki.openstreetmap.org/wiki/WikiProject_India/Boundaries/National_borders
Comment from pnorman on 19 August 2019 at 21:29
It’d be good to see this work on osm.org via submitting bubble wrap to be a featured tile layer. Are you interested in submitting it?
Comment from nvk on 20 August 2019 at 05:19
@Carnildo: While there is a military feature in OSM for Guantanamo Bay Naval Base (https://www.openstreetmap.org/way/39037988), I include it in the list above because there is no admin boundary or even barrier tagged in OSM between Cuba and United States administration there – and there is a real world, on the ground difference between being on either side of that boundary in terms of the money in circulation, how mail is distributed, the civil administration, and military administration plays out. The same can be said of Diego Garcia NSF and other places, even the Baikonur Cosmodrome. The countries party to these complicated situations aka “claims” generally agree on the ultimate sovereignty, but OSM doesn’t currently reflect the day-to-day administration of these places. Think also of Hong Kong before the lease expired there, and the complicated “1 country, 2 systems” legal arrangement.
Comment from nvk on 20 August 2019 at 05:20
@pnorman: Sure, that sounds like a good idea to see this on OSM.org :)
Comment from pangoSE on 23 August 2019 at 16:45
Instead of downloading via the overpass turbo website I suggest you download directly from the (by default hidden) overpass turbo tab in JOSM.
See https://josm.openstreetmap.de/wiki/Help/Action/Download for details (you have to enable “expert mode” to succeed.)
Comment from nvk on 23 August 2019 at 17:34
@pangoSE: Thanks for the tip!