The simplified result of many objects are topologically consistent, which means any two objects share a node in original datasets will share the same node in their simplified version. However, the topology preservation is a complicated issue for data simplification, more tests are needed.
On Thu, Nov 17, 2016 at 9:42 PM, Jukka Rahkonen <[email protected]> wrote: > Martin Koppenhoefer wrote 2016-11-17 14:39: >> >> 2016-11-17 11:08 GMT+01:00 Rory McCann <[email protected]>: >> >>> But... isn't there a danger that the mapper will load this >>> simplified/reduced object in JOSM (etc), change the tags, then press >>> upload? And then upload the simplified/reduced geometry? Which will >>> make >>> the OSM data worse? >> >> >> there would have to be precautions, the editors supporting reduced >> data download would have to take care that only unreduced data can be >> edited and uploaded. Maybe the API-server restituting different ids >> for reduced data could help here as well, so even if the data consumer >> / editor doesn't implement a special rule and someone tried to upload >> simplefied data it would not overwrite the un-simplified OSM elements >> or could be rejected. > > > There can be a need to make the features which are edited to match with > other existing features. If those other features are reduced ones the result > may not be what was expected. It may be hard to make this system reliable. > > -Jukka Rahkonen- > > > _______________________________________________ > dev mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/dev _______________________________________________ dev mailing list [email protected] https://lists.openstreetmap.org/listinfo/dev
