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Results tagged with donut-polygons
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user 95641
a donut polygon is a polygon with one or more holes in it. Such a feature is regarded as a complex geometry, having an outer ring of coordinates, and one or more inner rings of coordinates that represent the (donut) holes. An example of a donut polygon would be a lake with an island, the extent of the water in the lake is the polygon and the hole is the island.
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Automated islands within polygons in QGIS
If I get it right you're looking for the geoprocessing's tool difference. you may find it under Vector > Geoprocessing Tools > Difference.
Separate the "first polygon" (select the feature, right cli …
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