Subject: ‘Cartogram’
April 27, 2012 Geography of Billionaires: Mapping Nationalities and ResidencyCartography, GIS NewsForbes recently released an updated list of the world’s billionaires. The listing contains the ranking for 1,226 individuals and families who’s net worth as of March of 2012 was 1 billion USD or more. Since the listings contained both a country of citizenship and residence, this allows for a peek at the geography of billionaires. ... read more April 24, 2012 Area Cartogram Maps ExploredCartographyArea cartograms are maps of non-absolute space where the areal extent is in proportion to some measured value. Cartograms retain a partially accurate relative location and relative space, but the actual area of the individual polygons features are overrepresented or underrepresented based on the assigned values. Area cartograms are useful for visualizing relativity based on ... 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 |
