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d3v3 Multiple Pie Charts on Map - Static Data

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Aandrew-reid
Last edited Mar 17, 2017
Created on Jan 31, 2017

This example overlays multiple small pie charts on a world map, with each pie positioned at a geographic coordinate from a CSV file. The map uses a Mercator projection centered on India, with countries rendered as green landmasses and white borders via TopoJSON. Each data point is plotted as a small pie chart using d3.layout.pie and d3.svg.arc, with slices colored by category10 scale; a red dot marks each location. The visualization combines geographic context with proportional composition, illustrating how static CSV data can be overlaid onto a map using D3 v3 and SVG.

AI-generated description

Based on a question from Stack Overflow, multiple pie charts on a map

http://stackoverflow.com/questions/41949622/piechart-over-a-map-point-using-d3-js

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