Zoomable Tiles

• Panning & Zooming: http://bl.ocks.org/mbostock/4132797
• Clipping: http://bl.ocks.org/mbostock/4150951
• Vector Tiles: http://bl.ocks.org/mbostock/5593150
• Raster Tiles & Vector Overlay: http://bl.ocks.org/mbostock/5342063

A layout for determining which 256x256 quadtree tiles to display in a rectangular viewport, based on a scale and translate. This layout can be used to create a simple slippy map, or render standard map tiles (e.g., MapBox, CloudMade) as a base layer behind a geographic projection.