Dorling Cartogram

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Dorling Cartogram

✓ Published0🌍 Public

Last edited Jan 8, 2018

Created on Jan 7, 2018

This interactive Dotting-style cartogram displays monthly regional train delays across French administrative regions from 2013 to 2017. A Dorling-style map replaces geographic polygons with circles sized by delay magnitude, with slider inputs to select month, year, and toggle between map and node views. The visualization uses d3.csv and d3.json to load data, d3.geoPath with a geoConicConformal projection, d3.scaleSqrt for circle radii, and d3.scaleQuantize for color encoding. Hovering reveals tooltips with precise values.

AI-generated description

This is not a true Dorling cartogram; it lacks links between adjacent features. Instead of trying to preserve connectedness, this pseudo-cartogram tries to preserve locality, putting each circle as close as possible to its origin without overlapping.

forked from <a href='http://bl.ocks.org/mbostock/'>mbostock</a>'s block: <a href='http://bl.ocks.org/mbostock/4055892'>Pseudo-Dorling Cartogram</a>

forked from <a href='http://bl.ocks.org/AminaSGitHub/'>AminaSGitHub</a>'s block: <a href='http://bl.ocks.org/AminaSGitHub/fbeee4e8ed0b6fcf437d7a16dc5fe7b9'>babylone_P22222</a>

forked from <a href='http://bl.ocks.org/AminaSGitHub/'>AminaSGitHub</a>'s block: <a href='http://bl.ocks.org/AminaSGitHub/e2c0b7a54af001538b3dba2cfd6f453d'>babylone_P1_Transition</a>

gpl-3.0 Licensed

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