I still do not understand how to do it properly, but the islands have appeared on the map so perhaps someone else went ahead and fixed it. I would also like to see a HOWTO or documentation on multi polygon relationships, the rationale behind them etc so please keep me posted.
On 21 December 2011 21:36, Jim <[email protected]> wrote: > Was there a resolution for this? I found that it works for me on some > polygons, not on others. > > -----Original Message----- From: Alexandros Papadopoulos > Sent: Friday, December 02, 2011 7:33 PM > To: [email protected] > Subject: Re: [OSM-newbies] mapping islands of a salt flat > > > On 24 November 2011 16:24, Alexandros Papadopoulos > <[email protected]> wrote: >> >> On 24 November 2011 15:21, Richard Weait <[email protected]> wrote: >>> >>> On Thu, Nov 24, 2011 at 1:03 PM, Alexandros Papadopoulos >>> <[email protected]> wrote: >>>> >>>> On 24 November 2011 13:38, Craig Wallace <[email protected]> wrote: >>>>> >>>>> On 24/11/2011 15:33, Alexandros Papadopoulos wrote: >>>>>> >>>>>> >>>>>> Hello. >>>>>> >>>>>> I am mapping the islands of the Salar de Uyuni >>>>>> (http://osm.org/go/NK_7Jv--) as I found it particularly annoying they >>>>>> were not on the map when I needed this information. >>> >>> >>> [ ... ] >>> >>>>> Islands in inland water need to mapped with multipolygon relations. ie >>>>> map >>>>> the island as an area, and add it to a multipolygon relation with role >>>>> "inner", and add the outline of the lake to the relation with role >>>>> "outer". >>>>> I see that Isla Incahuasi is already mapped with a multipolygon >>>>> relation, so >>>>> you can add all of the other islands to the same relation, with role >>>>> inner >>>>> for each. >>>>> >>>>> There is no need to tag the islands with natural=land. It is more >>>>> useful to >>>>> tag what is actually there. eg if the island is covered with trees then >>>>> tag >>>>> it with natural=wood, or if its a beach tag it as natural=beach etc. >>>> >>>> >>>> Thanks Craig. >>>> >>>> So to sum up: >>>> >>>> 1. Mark the island as an area. >>>> 2. Add any useful designations (natural=beach etc) >>>> 3. Add to multipolygon relation. >>>> >>>> I have attempted to do just that for the 20odd islands I can see on >>>> Bing aerial photography, hope I did the right thing. >>> >>> >>> Almost perfect, Alex. >>> >>> As Craig said, once these new polygon islands are added to the >>> multipolygon relation for the salt flat, you must assign the island a >>> "role" in the multipolygon relation. >>> >>> in potlatch, select the island way >>> in the advanced tab, double click the relation number to open the >>> relation dialogue box. >>> select the members panel in the relations dialogue >>> add "inner" for the role of the island ways. >>> then save your changes as usual. >> >> >> Ah, afraid you lost me with "add "inner" for the role of the island ways." >> >> From the long list of way IDs I get, how do I know which way is the >> island I am editing; >> >> I see what is in the screenshot "for free", ie this is what comes up >> without me doing anything more than assigning the island way to the >> multipolygon relationship. >> >> Sorry for omission of special characters in email, Chilean computer I >> use has funny keyboard layout. >> >> A step by step example for one island might hopefully help. >> >> Thanks >> >> Alex > > > This is still pending and the islands of the Salar de Uyuni remain > unmapped. Has my previous email with the screenshot from P2 made it to > the list? Would appreciate some more help to get this over and done > with. > > Cheers > > Alex > > _______________________________________________ > newbies mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/newbies > > _______________________________________________ > newbies mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/newbies _______________________________________________ newbies mailing list [email protected] http://lists.openstreetmap.org/listinfo/newbies
