non-contiguous cartogram


Choropleth map showing the number of billionaires in residence per state for the United States. Data from Forbes' List of the World's Billionaires, March 2012.Choropleth map showing the number of billionaires in residence per state for the United States. Data from Forbes' List of the World's Billionaires, March 2012.

How To Make Area Cartogram Maps in ArcGIS

If you have data with disparate values between areas, making an area cartogram is an effective way to map out those values. This article provides a tutorial on how to make area cartogram maps using ArcGIS.

Noncontiguous cartogram showing population density within Europe. (Source: Vinny Burgoo). Projection: Lambert Azimuthal Equal Area. Data: January 2008 population data from Eurostat.Noncontiguous cartogram showing population density within Europe. (Source: Vinny Burgoo). Projection: Lambert Azimuthal Equal Area. Data: January 2008 population data from Eurostat.

Area Cartogram Maps Explored

Area cartogram maps are maps of non-absolute space where the areal extent is in proportion to some measured value.  Cartogram maps 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 […]