Tada! And what’s more, most places have attributes beyond just location: stores have opening times, rivers have current speed, and each Girl Guide troop has cookie selling turf. The Data layer allows you to represent all attributes in GeoJSON right on the map and make decisions about what data to display more easily.
You can use this information to create a styling function that says, “show the earthquakes as circles, scaled to their magnitude” and as the data or rules are updated, the styling will automatically be applied to every feature. This beats having to manually update each feature or rule as more information is added to the map.
Get started by checking out our developer docs, the code for these earthquake maps, this cool demo showing data from different sources, and this Google Developers Live video. This is a new feature, so if you run into problems or think of any additions you’d love to see, get help on StackOverflow and check our support page for the right tags to use.
We’re looking forward to seeing what you build with this new tool and, as always, we’re eager for your feedback. Please comment on this post or on our Google+ Page.
Posted by Jen Kovnats, Product Manager on the Maps API Team