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Tuesday, February 16, 2021

Election Chartograms


The major winner inward the concluding United Kingdom of Great Britain as well as Northern Ireland of Britain as well as Northern Republic of Ireland full general election was the tiled grid map. My bet for this year's U.S. election is the 'chartogram'.

For instance this calendar week the Wall Street Journal has created an historical U.S. election map which represents each nation equally a bar nautical chart showing the nation winners inward previous elections. A Field Guide to Red as well as Blue America is like to a traditional tiled grid map, except dynamic bar charts convey been used instead of colored grids. At the run a hazard of butchering the English linguistic communication language I'm going to cite to this type of grid map equally a 'chartogram'.


This isn't the commencement fourth dimension that private grids convey been used to visualize historical election data. For example, afterwards the Scottish Election inward May, The Guardian used Sankey diagrams inward a tiled grid map of Scotland to demonstrate the historical percent of votes past times each political political party over previous elections inward each electoral district.


Esri has besides been experimenting alongside using dissimilar types of charts as well as graphs inside private tiled map grids to visualize U.S. election history data. US Election History is an interactive tiled grid map which visualizes the historical voting designing of each nation inward a give away of dissimilar ways.

My favorite sentiment inward this tiled grid map is the Waffle Grid, which presents the historical election information inward each nation alongside a serial of modest colored squares. Each foursquare is colored cherry-red or bluish to demonstrate how the nation voted inward previous U.S. of A. of America elections.

The Wall Street Journal is showing like historical election data, solely it is using bar charts rather than 'waffle grids'.

I convey a feeling that nosotros powerfulness endure seeing quite a few of these types of tiled grid maps or chartograms inward the side past times side half-dozen months. If y'all desire to do an interactive version of this type of map hence it powerfulness endure a skillful thought to start honing your d3.js skills as well as practise adding an SVG overlay pane to Leaflet maps.