I have a pretty large polygon shapefile (almost 1.5 million buildings) that I want to display in Google Maps. As the KML would be far too big, I have to create tiles, right?

I don't want to host my own server, but just upload the tiles on my site. But how do I create the tiles for such a shapefile?

TileMill seems not working with such a large shapefile. It has to be Google Maps as I want to use the geolocation service that works best for the country the data is from.

Any hints?

  • 3
    can you just display small amounts of data for the area of interest? Do you have a database? – Mapperz Dec 8 '14 at 18:41
  • Should work as well in full zoom out. I could host a PostGIS database, yes. – Wolfram Dec 8 '14 at 19:43

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.


Google's table fusion might be a good place to start. https://support.google.com/fusiontables/answer/2571232?hl=en

  • It's too big: More than 100k lins and 100MB – Wolfram Dec 8 '14 at 19:44

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