https://ikml.com/tags/polygons/ Recent content in Polygons on ikml.com Hugo en-us Sun, 25 Oct 2026 00:00:00 +0000 https://ikml.com/unclosed-polygon-rings-in-a-field-boundary-file-and-how-ikml-cleans-them/ Sun, 25 Oct 2026 00:00:00 +0000 https://ikml.com/unclosed-polygon-rings-in-a-field-boundary-file-and-how-ikml-cleans-them/ <p>A polygon in KML and GeoJSON is a ring of positions that ends where it starts. The last position must repeat the first, exactly. It looks redundant, and that&rsquo;s exactly why it gets left out: a farm management app, a script that turns a CSV of corners into KML, or a person editing coordinates by hand writes the four corners of a field and stops.</p> <p>What happens next depends on the program reading the file. Some close the ring silently. Some draw it as a line, so the field has an outline but no area. Some refuse the shape, and the field is simply missing from the map, with the other fields drawn around the gap.</p>