Subject: ‘Thematic Mapping’
November 12, 2009 Thematic Mapping at the US County Level with Free ToolsCartography, Free GISThe FlowingData site has a post with instructions from Nathan Yau on how to create “a simple map without all the GIS stuff“ of the United States at the county level using free tools. Using data from the Bureau of Labor Statistics on unemployment rates, Yau provides the steps necessary to use a SVG map showing ... read more November 10, 2009First Thematic MapsCartographyZachary Forest Johnson provides an overview on Indiemaps.com on the first published instances of each of the six most commonly used thematic mapping techniques: choropleth, proportional symbol, dot density, flow, isarithmic, and cartogram. Each technique’s first mapping instance is described along with a scanned sample of the map. In conclusion, Johnson writes: Four of the ... read more |
