I have 3000+ polygons which represent watersheds (18 main watersheds). At the first stage all the 18 watershed will show and their list will be placed in the left sidebar. If any user mouse over the map only popup will show the watershed name. If any user click on any major watershed on map it will open pop up window with detail. At a larger zoom, all watersheds will show.
I'm asking for your advice which open-source solution is the best for handling that large amount of polygons? I was thinking about Leaflet or OpenLayers but I don't know can they handle large amounts of polygons. Also, do you suggest do store them in mysql or? Thank you.