D3

Examples of using GIS to bin point location data for South Africa, Nebraska, and Kenya. Source: MapBox

Binning in GIS

Amanda Briney

In order to reduce congestion on maps many GIS users and cartographers have turned to a process known as binning.

Visualizing American Migration Without a Map

Caitlin Dempsey

As a cartographer, the display of spatial information is of great interest to me.  I’ve been particularly intrigued by analysts ...

Exploring Map Projections

Caitlin Dempsey

Created using D3, Map Projection Transitions provides an excellent way to visualize a wide range of map projections.  The page ...

Hexagonal binning map showing the locations of 3,000 Walmart stores in the United States.

Making Maps with D3

Caitlin Dempsey

D3 is a JavaScript data visualization library using HTML, SVG and CSS.  D3 stands for Data Driven Documents and was developed by  Mike Bostock, ...