leaflet multi geojson nested overlays control : i have 3 separated geojson files ,each one contains a featurecollection of polygons
first one for regions the second for provinces and last for  communes.

so the scenario is
for each region on click  or zoom       
show provinces in the clicked region then same thing with procinces,



im using leaflet for interactive map

im stuck on how to link every region with their provinces ....

is there any way to detect nested polygons ...

do i need a database or server side analysis 

thanks





 







