TP 4: Donnees spatiales

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TP 4: Donnees spatiales

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Last edited Nov 24, 2016

Created on Nov 24, 2016

A choropleth map of France shows the total number of influenza cases reported in 2014 for each region, using a five-color quantized scale ranging from light purple to dark green. The visualization merges data from a CSV file containing weekly case counts with a GeoJSON file of French regional boundaries, assigning the annual sum to each region. Built with D3 v3, the map uses a conic conformal projection and the `d3.geo.path` API to render the regions, with the color domain fixed from 0 to 2000 cases. Regions lacking data appear gray.

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