Treemap from bl.ocks.org

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Treemap from bl.ocks.org

✓ Published1🌍 Public

Last edited Apr 2, 2020

Created on Apr 2, 2020

A hierarchical treemap displays the flare dataset, showing nested file sizes and counts as colored, labeled rectangles. The visualization uses `d3.treemap` with the `d3.treemapResquarify` tile method, rendering SVG rectangles and text with mouse-over titles. Radio buttons switch between summing by file size and by node count, triggering a 750ms `transition` that animates rectangle positions and dimensions. D3 v4 and `d3.scaleOrdinal` with `d3.schemeCategory20` color the cells.

AI-generated description

An example of porting a work from bl.ocks.org into VizHub. This is a direct port of Mike Bostock’s Block: Treemap, modified only to split into separate files, and to fit in the space available.

MIT Licensed

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This treemap visualizes the hierarchical structure of the Flare data set, using nested rectangles whose areas encode each leaf’s size value. Users can toggle between summing by size or by count via radio buttons, which triggers a smooth 750ms transition of the rectangles. The visualization is built with D3 v4, using `d3.treemap` with the resquarify tiling function, `d3.hierarchy`, and `d3.scaleOrdinal` for color coding by parent category. The SVG rendering includes clip-paths for text labels and tooltip titles on each leaf.

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