Cities on a Globe

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Cities on a Globe

✓ Published10🌍 Public

Last edited Oct 9, 2025

Created on Dec 4, 2020

This interactive globe visualizes cities with populations over 100,000 using circles sized by population. Users can pan and zoom the orthographic projection. The visualization renders country borders from world-atlas TopoJSON data and city coordinates from a Geonames CSV file. It leverages d3.geoOrthographic, d3.geoPath, d3.scaleSqrt, and d3-tip for tooltips, with d3.drag and d3.zoom handling interaction.

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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