[OSM-talk] Go Map!: Mobile mapping on iOS

Simon Poole simon at poole.ch
Wed Jul 27 13:15:23 UTC 2016

Am 27.07.2016 um 12:39 schrieb Aun Johnsen:
> GoMap!! is limited in its capabilities to edit relations to reduce the
> chance of breaking anything. Without being sure, when splitting a way
> that is member of a relation, both parts continue with same
> membership. This might give undesired results in very few relations,
> so I think it is a safe approach for an app that doesn’t do editing of
> said relations.
That breaks essentially all turn restrictions.


> Aun Johnsen
>> On Jul 27, 2016, at 06:01, Martin Koppenhoefer
>> <dieterdreist at gmail.com <mailto:dieterdreist at gmail.com>> wrote:
>> 2016-07-27 10:16 GMT+02:00 moltonel <moltonel at gmail.com
>> <mailto:moltonel at gmail.com>>:
>>     When I first heard of GoMap, it was along with some criticism
>>     that it didn't handle the full osm data model and could mess up
>>     relations for example. I trust this has been sorted and GoMap is
>>     now relation-safe or even able to edit/create relations ?
>> relation membership is shown when you select a member and go to
>> "tags", you can select the relation, see the members and roles, and
>> modify tags. You can't (AFAIK) create relations, and from a quick
>> test it seems splitting ways of a turn restriction will result in
>> inconsistent relations (two from members in this test), i.e. if you
>> split a way it will likely keep all (new) members in the relation
>> regardless of relation type (i.e. routes and multipolygons will not
>> break when splitting some of their members).
>> I'm sure complex geometric operations will likely destroy relations
>> (e.g. splitting a member, deleting one of the resulting ways, redraw
>> it and don't check or care for the relation), but for simpler
>> usecases (draw short piece of missing way, add nodes, move stuff, add
>> or change tags) it is "the almost perfect mobile editor".
>> Cheers,
>> Martin
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