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inner rings touching twice #49

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fkv1 opened this issue Jul 19, 2022 · 0 comments
Open

inner rings touching twice #49

fkv1 opened this issue Jul 19, 2022 · 0 comments

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@fkv1
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fkv1 commented Jul 19, 2022

If inner rings of a multipolygon touch in two positions, together forming a donut shape, OSMI incorrectly reports the following errors:
Way in >1 rings
Role should be outer

Example: http://tools.geofabrik.de/osmi/?view=areas&lon=15.80947&lat=47.73963&zoom=14&baselayer=Geofabrik%20Standard&opacity=0.67&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways
That link has been provided in the discussion of changeset https://www.openstreetmap.org/changeset/113231318 by a user who fell for it. In order to fix the supposed error, he added the "hole in the donut" as an "inner" member, which made the forest between the scree and the bare_rock disappear from rendered maps.

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