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map exemple

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TTimothyMiage
Last edited Oct 3, 2022
Created on Oct 3, 2022

This choropleth map displays global population estimates, with countries shaded from light red to dark red according to their population size. The visualization uses `d3.geoMercator` for projection and `d3.geoPath` to render country boundaries from TopoJSON data loaded via `d3.json`, while population values come from a TSV file loaded with `d3.tsv` and mapped to colors using `d3.scaleLinear`. The map supports pan and zoom interactions through `d3.zoom`, and hover effects are styled with CSS.

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map

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This interactive choropleth displays global population estimates, with each country filled by a color scale ranging from light red to dark red according to its population. Built with D3 v5, the map uses TopoJSON to convert world-atlas GeoJSON features into SVG paths via a Mercator projection, while an accompanying TSV file supplies the population attributes. The visualization supports zooming and panning, and countries turn purple on hover.

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