An evaluation of visualization methods for population statistics based on choropleth maps
arXiv preprint arXiv:2005.00324, 2020•arxiv.org
We evaluate several augmentations to the choropleth map to convey additional information,
including glyphs, 3D, cartograms, juxtaposed maps, and shading methods. While choropleth
maps are a common method used to represent societal data, with multivariate data they can
impede as much as improve understanding. In particular large, low population density
regions often dominate the map and can mislead the viewer as to the message conveyed.
Our results highlight the potential of 3D choropleth maps as well as the low accuracy of …
including glyphs, 3D, cartograms, juxtaposed maps, and shading methods. While choropleth
maps are a common method used to represent societal data, with multivariate data they can
impede as much as improve understanding. In particular large, low population density
regions often dominate the map and can mislead the viewer as to the message conveyed.
Our results highlight the potential of 3D choropleth maps as well as the low accuracy of …
We evaluate several augmentations to the choropleth map to convey additional information, including glyphs, 3D, cartograms, juxtaposed maps, and shading methods. While choropleth maps are a common method used to represent societal data, with multivariate data they can impede as much as improve understanding. In particular large, low population density regions often dominate the map and can mislead the viewer as to the message conveyed. Our results highlight the potential of 3D choropleth maps as well as the low accuracy of choropleth map tasks with multivariate data. We also introduce and evaluate popcharts, four techniques designed to show the density of population at a very fine scale on top of choropleth maps. All the data, results, and scripts are available from https://osf.io/8rxwg/.
arxiv.org
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