Cities on the Globe
This interactive globe displays all cities with populations over 100,000 as proportional circles, rendered in SVG with d3.geoOrthographic projection and d3.geoPath. Users pan by dragging and zoom with the mouse wheel, swapping between low- and high-resolution TopoJSON world boundaries (110m and 50m) during movement for performance. City data comes from a CSV of 250 cities, with tooltips via d3-tip showing population counts.
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>