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There is no way you can get the map that small and still be readable like at that zoomlevel. Just consider this: the scalebar on gmaps (bottom right corner) is roughly 1", so even at z14: 1 km = 1 inch an imaginary country with 1000km*1000km, so a map of that country would take 1000"x1000" (1000000) you want it colored, so at least 8bit, i.e. *8 you want ...


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For drawing the polygons, use Leaflet Draw. Also, check out the turf.within function. It takes a set of points and a set of polygons and returns the points that fall within the polygons. For the excel piece, there are several ways to hack this. The easiest would probably be to setup a simple server endpoint that runs ogr2ogr on your geojson and outputs a ...


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Have you looked at gogeo Platform (www.gogeo.io) or CartoDb (http://cartodb.com)? I guess that Google Maps can't handle with millions of polygons. goGeo was made to work with Geospatial Big Data and CartoDb was built upon Postgis.


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You can use marker-animate-unobtrusive library to make markers smoothly transition from one location to another. You could initialize your marker like that: var marker = new SlidingMarker({ //your original marker options //... }); So your marker will animate from starting location to given one on this call: marker.setPosition(givenPosition); ...



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