Hi Dave, all, Based on this discussion I just recorded this short tutorial <https://youtu.be/x7SPb0JtheA> of how I use JOSM and its Relation Toolbox plugin to to add adjoining land-cover areas as multipolygons with shared boundary ways to reduce duplication and overlapping ways.
The area I'm editing, is replete with examples of this type of mapping: https://www.openstreetmap.org/#map=14/44.0199/-73.1530 The tools used are: * JOSM editor - https://josm.openstreetmap.de/ * "Relation Toolbox" JOSM plugin - https://wiki.openstreetmap.org/wiki/JOSM/Plugins/Relation_Toolbox Documentation on MultiPolygons in the OSM wiki: * https://wiki.openstreetmap.org/wiki/Multipolygon_Examples * https://wiki.openstreetmap.org/wiki/Relation:multipolygon For some reason I've gotten hooked on mapping landcover in my area and spend a lot of time adding multipolygons to do so. I find them vastly easier to manage, update, and fix than simple closed ways with overlapping edges (how I started). As I show in the video, adding detail usually just means splitting exiting ways and adding/subtracting using the Relation Toolbox. Hope this helps someone -- let me know if there are particular cases or questions and I'd be happy to record another video covering other situations. Best, Adam On Mon, Oct 22, 2018 at 8:47 AM Paul Allen <[email protected]> wrote: > On Mon, Oct 22, 2018 at 5:27 AM Dave Swarthout <[email protected]> > wrote: > >> >> Great. But what are you actually doing when you "sort the members" of a >> relation? And after sorting, how does one "ensure the members are >> connected"? >> > > Sorting something like a bus route ensures that the various ways that > constitute it are connected > nose-to-tail. This is what "ensures the members are connected" and > ensures they are connected > in a sensible fashion. Sorta. It may not do a good job if the route > traverses the same way in the > same direction more than once. > > I've noted with dismay the lack of debugging support for relations. For >> example, I will get an error message when trying to upload an edited >> relation but when I ask JOSM to Zoom to the error, the display zooms out >> enough to include the entire relation with no clue as the where the actual >> problem is. Same thing when you ask to "jump to the next gap". Good luck on >> that also. Maybe it's just me? >> > > Nope, it's not just you. I too have problems getting my head around > JOSM. I use it when I have to, > to merge or split areas (such as when I find out that a large forest that > somebody else mapped > has two named chunks). It's probable I find it hard to use because I > don't use it enough, which means > I don't use it much, which means... But I also have to admit that I find > Java programs in general are > not a good fit with how my mind expects things to work and they all give > me a steeper learning curve > than non-Java programs. Which means I try not to use them much, which > means... > > -- > Paul > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging >
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