I working on an ASP MVC web app that calls a web service to get the polygons (as GeoJSON files) to display on the client side in OpenLayers. These polygons contain in total 47191 points !! Which makes roughly 5Mb of data...
Are there any strategies to transfer big amounts of GIS data through a web service without the size overhead ?
I've tried GZipping the requests but it didn't help much.
Is it possible to transform the GeoJSON files to some binary format to be downloaded and read by OpenLayers ?