Dorling Cartogram

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Dorling Cartogram

✓ Published0🌍 Public

Last edited Jan 8, 2018

Created on Jan 7, 2018

A Dorling cartogram of French regional rail traffic displays monthly ridership data from 2013 to 2017. Each region is represented by a circle positioned near its geographic origin, with circle size and fill color encoding passenger counts. Interactive sliders let viewers select a year and month. The visualization uses `d3.forceSimulation` for non-overlapping circle placement and a `d3.geoConicConformal` projection for initial locality. It merges CSV travel statistics for regions with GeoJSON outlines via `d3.csv` and `d3.json`.

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>

gpl-3.0 Licensed

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