validation · 2026-01-07
Fix a Hole Outside the Outer Ring (WKT and GeoJSON)
A hole must sit inside its outer ring. Learn how to detect a hole outside the outer ring, fix it in the browser, validate the result, and export clean WKT or GeoJSON.
Guides that mention polygon.
Showing 4 / 4
validation · 2026-01-07
A hole must sit inside its outer ring. Learn how to detect a hole outside the outer ring, fix it in the browser, validate the result, and export clean WKT or GeoJSON.
validation · 2026-01-07
A zero-area ring is a degenerate polygon. Learn how to spot it, remove or repair it in a browser, validate the result, and export clean WKT or GeoJSON.
validation · 2026-01-06
A polygon ring must end where it starts. Learn how to spot an unclosed ring, close it correctly in WKT or GeoJSON, validate the result, and export clean geometry.
validation · 2026-01-06
Self‑intersections (“bowties”) make polygons invalid. Learn how to detect the crossing, repair it in a browser, validate the result, and export clean WKT or GeoJSON.