D3


Spatial Analysis

Alaska migration. Data: US Census, 2012. Graphic: Chris Walker.

Visualizing American Migration Without a Map

As a cartographer, the display of spatial information is of great interest to me.  I’ve been particularly intrigued by analysts who are able to convey complex geographic information without resorting to a map.  Previously, I had done a round of some of the methods in the article, “Spatial Unmapped.” Chris […]

Maps and Cartography

Polyconic projection.

Exploring Map Projections

Created using D3, Map Projection Transitions provides an excellent way to visualize a wide range of map projections.  The page was created by Jason Davies, a freelance data visualization consultant. Map projection visualizations offers the user a glimpse at what forty-one different projections look like.  Users can select one of the […]

GIS Software

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

Making Maps with D3

D3 is a JavaScript data visualization library using HTML, SVG and CSS.  D3 stands for Data Driven Documents and was developed by  Mike Bostock, Jeff Heer and Vadim Ogievetsky as a successor to the Protovis framework. Making maps with D3 The 3.0 release of D3 now includes a geographic projection system.  Common geographic projections are included […]