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Cities on a Globe
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 descriptionA 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