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Read in JSON department files

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Llittlenanopichu
Last edited Apr 24, 2020
Created on Apr 24, 2020

A zoomable sunburst visualization displays student enrollment counts by gender across university departments and courses. Three radio buttons filter the view to specific departments. The visualization loads data from three JSON files using `Promise.all` and `d3.json`, building a hierarchical structure with `d3.hierarchy` and `d3.partition`. The code uses `d3.arc` to render the sunburst segments and includes interactive zooming via click handlers.

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MIT Licensed

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Read in JSON department files

This example shows a zoomable sunburst chart of student enrollment data by department, course, and module, with a breakdown of male and female students. A radio button selection allows users to choose a department for focus. The data is loaded from three JSON files using `Promise.all` with `d3.json`. The visualization uses D3 v5’s `d3.partition`, `d3.hierarchy`, and `d3.arc` to render the SVG-based radial layout, with click interactions to zoom and animate through the hierarchy. Colors are assigned via `d3.scaleOrdinal` with a rainbow interpolator.

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