In developing an interactive map for the COVID-19 Mobility Network, we developed a unique set of map projections and dynamic map labels for the clearest and most effective communication of our data. In this session I’ll walk through the stages of developing and refining several iterations of our map, starting with a US-only Albers projection customized to include all US territories and possessions, to a global map combining hierarchical administrative data from many different sources. I explain how we used a variety of open source tools (from D3, Dirty Reprojectors, GDAL/OGR, MapShaper, Makefiles, and numerous Mapbox command-line tools and APIs) to create a repeatable and highly customizable workflow.
Video recording: https://www.youtube.com/watch?v=DeDYDql4O3Q