恐怖主义伤亡数
This visualization combines a world bubble map with a time-series histogram to explore global terrorism casualties. The map displays circles scaled by the total dead and missing, while the histogram shows monthly casualty sums. A brush on the histogram filters the map’s circles interactively. The visualization uses React, D3 v5, and SVG, leveraging `geoNaturalEarth1` for the map projection, `scaleSqrt` for circle sizing, and `brushX` to enable time-range selection. Data comes from the Global Terrorism Database, with country boundaries from World Atlas TopoJSON.
AI-generated descriptionThe final installment from the online course Datavis 2020.
A world map showing cities with population greater than 50,000. City data from Simplemaps: World Cities Database.
Country boundaries from World Atlas TopoJSON, polished for visual style, including graticules.
This iteration is optimized for performance using React's useMemo hook.
![[DataVizStudy]Using Size with Points on the map](/viz/278556d01b4044bd9aa8d1e1858a5d38/social-image.png?v=980059bdc4b0470eaa77497210c01d35)
![[DataVizStudy]Using Size and menu with Points on the map](/viz/065c107ce1f746f1a5ddd9ab5121bb21/social-image.png?v=967beca2b1374f6cb78d7e1363158944)
![[DataVizStudy]Points on the map](/viz/2f45272674044974918c83233835f54a/social-image.png?v=b721050de75c4d568e629a56152171d7)
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