How Interactivity Works with UTFGrid

By Konstantin Käfer Adding interactivity to millions of objects on a map requires some tricks. Tom stunningly visualized the inner workings of UTFGrid, an encoding scheme that efficiently encodes interactivity data for map tiles that has made its way into all of our projects, including TileMill, TileStream, and Wax, in his Visible Map. This also lets you explore the stages Wax takes to retrieve th