PolygonHierarchy
external class PolygonHierarchy(var positions: ERROR CLASS: Symbol not found for ReadonlyArray<cesium/engine/Cartesian3> = definedExternally, var holes: ERROR CLASS: Symbol not found for ReadonlyArray<cesium/engine/PolygonHierarchy> = definedExternally)(source)
An hierarchy of linear rings which define a polygon and its holes. The holes themselves may also have holes which nest inner polygons.