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by pramsey
1479 days ago
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1000 times yes! I am a spatial data expert but only a some-time OSM editor and I still have yet to figure out how to create a polygonal feature more complex than a single building footprint. The theoretical advantage of a unified topology model of just nodes/edges where polygons and lines share core geometry is nullified by cultural rules that say "don't do that" to editors (I had a bunch of parks that shared a boundary with a road reverted with nasty notes). The current setup is not just hard for processors, it's hard for non-experts to understand and therefore a higher barrier than a simple polygon model would be. |
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In ID (default editor) you can mark area and area inside or select two disjointed areas and press right click on the and select "Merge". Or press "c" while selecting areas for combining.
In JOSM there is equivalent "create multipolygon" (or "update multipolygon")
https://wiki.openstreetmap.org/wiki/Relation:multipolygon#Ho...
> parks that shared a boundary with a road
FYI, that is because highway=* road line represents centerline of carriageway - and unless park somehow ends in the middle of road and includes half of its surface it will be not correct.
It also makes future editing quite nasty.