Cities on a Globe

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Cities on a Globe

✓ Published0🌍 Public

Last edited Dec 20, 2022

Created on Dec 15, 2022

This example presents an interactive orthographic globe that plots circles for cities with populations over 100,000, with circle size proportional to population. Users can pan and zoom the globe by dragging or using the scroll wheel, which triggers dynamic re-rendering of city markers. The visualization uses D3 v4 with d3.geoOrthographic projection, d3.geoPath, d3.drag, and d3.zoom, along with TopoJSON world-atlas data for country boundaries. City data originates from a preprocessed Geonames dataset, and the code displays tooltips via d3-tip on hover.

AI-generated description

A globe with pan & zoom showing circles for each city of over 100,000 inhabitants. Data from Geonames, preprocessed. The same data is used in World City Explorer.

Uses world-110m and world-50m geographic shapes from TOPOJSON World Atlas.

Inspired by

forked from <a href='http://bl.ocks.org/curran/'>curran</a>'s block: <a href='http://bl.ocks.org/curran/0bb64d8f56042e2480c908b0985f063b'>Orthographic Zoom III</a>

Imported to VizHub from bl.ocks.org: Cities on the Globe

MIT Licensed

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