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Questions tagged [interior-ring]

Interior rings are holes in polygons.

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Finding holes in proposed districts (Polygons/Multipolygons)

Thinking through something that I seek some SQL on: One of the ideas in redistricting is that a proposed district boundary should have no holes in it, i.e., a chunk of land with no district_id ...
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How to inverse the orientation of the holes coordinates of a polygon in geopandas

I have a polygon shapefile which I am reading with geopandas. The polygon contains holes. My purpose is to add a random point inside each hole. In order to create the points inside the holes (...
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Passing a WKT Polygon with interior rings to a QgsRubberBand's Geometry with PyQGIS

Starting point is that I select a geometry with the following query in QGIS DB Manager: SELECT 1 AS myid, st_buffer(st_union(wkb_geometry), 5) FROM ax_strassenverkehr WHERE unverschluesselt ILIKE '%...