The Open Geospatial Consortium (OGC) has announced the release of the OGC Features and Geometries JSON (JSON-FG) Standard.

This project contains individual zip-compressed .KML and converted GeoJSON files corresponding to the 100 House of Delegate (HOD) districts per the approved 2021 Virginia Redistricting map. These ...

1. Google Maps Data Layer でポリゴンを表示する仕組み Google Maps API では、GeoJSON を map.data に読み込むことで 都道府県などの形（Polygon）を描画できる。 を JSON 形式で指定する。 2. Polygon（多角形）のルールが重要 GeoJSON の "type": "Polygon" は LinearRing という形で ...

A Polygon's exterior ring must have counterclockwise winding order (often abbreviated ccw). This is often overlooked when manually creating Polygons or converting from other formats. As an older ...