KMLCircle Tutorial: Grouping and Mapping Geographic Radii Easily

Automating KML circle shapes in GIS solves a major fundamental limitation of Keyhole Markup Language (KML): ⁠KML does not natively support a built-in “Circle” geometry tag. Because ⁠Google Earth and other earth browsers only recognize points, lines, and polygons, programmatic automation is required to dynamically generate perfectly smoothed, multi-vertex polygons that resemble circles. The Problem: Why Automation is Necessary Geographic Information Systems Stack Exchange

how to create translucent objects in KML? – GIS StackExchange