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Clipping by Polygon may leave geometries outside polygon #7

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craig-o opened this issue Aug 2, 2020 · 2 comments
Open

Clipping by Polygon may leave geometries outside polygon #7

craig-o opened this issue Aug 2, 2020 · 2 comments

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@craig-o
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craig-o commented Aug 2, 2020

  1. Download the following file

https://download.geofabrik.de/russia/northwestern-fed-district-latest.osm.pbf

  1. Clip by polygon

osmconvert -v ./northwestern-fed-district-latest.osm.pbf -B=Russia_Nenets_Autonomous_Okrug.poly --complete-ways -o=nenetsconv.osm.pbf

  1. The output pbf contains geometries outside the original polygon, see the highlighted geometries in yellow.

nenets_poly_results
nenetsconv.zip
Russia_Nenets_Autonomous_Okrug.txt

osmconvert --help
osmconvert 0.8.7
@F-I-D-O
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F-I-D-O commented Aug 13, 2021

I can confirm that geometries outside (like completely away, not the ones crossing the border) also happens when specifying the rectangle with the -b option.

@biodranik
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Are these geometries a part of any relation inside polygon?

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@biodranik @F-I-D-O @craig-o