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A Visual History of Stamen Open Source Contributors

✓ Published4🌍 Public
CCurran Kelleher
Last edited Oct 9, 2025
Created on Apr 27, 2021

This visualization presents a streamgraph of commit activity from the top 100 contributors to Stamen’s open source repositories, with each colored layer representing a contributor’s weekly commit count over time. Layers are ordered chronologically by first commit, creating a vertical timeline that traces when contributors joined the projects. The code uses d3.stack with stackOffsetWiggle and stackOrderInsideOut to build the streams, applies smoothing via array-blur, and renders the result as SVG paths with interactive hover effects and links to each contributor’s GitHub profile.

AI-generated description

This is an experiment in visualizing Stamen's Open Source activity over the years. Each layer is one of the top 100 contributors (by commit count) in a Stamen Open Source repository. The thickness of each layer is the number of commits per week with smoothing applied. This visualization uses a modified Streamgraph technique where the layer order is determined by the time of the first commit. So, as you read the labels from bottom to top, that corresponds to the history of when each repository was introduced.

ISC Licensed

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