init method
void
init()
Implementation
void init() {
if (index != null)
return;
List<Geometry> polys = PolygonExtracter.getPolygons(geometry).cast<Geometry>();
index = new STRtree();
for (int i = 0; i < polys.length; i++) {
Geometry poly = polys[i];
index!.insert(poly.getEnvelopeInternal(), new IndexedPointInAreaLocator(poly));
}
}