Fork of D3 Git History Streamgraph
This streamgraph visualizes commit history across D3 repositories, with each layer representing a package and thickness showing weekly commit counts smoothed via array-blur. Layer order reflects each repository’s first commit, reading chronologically from bottom to top. The visualization uses d3.stack with stackOffsetWiggle and stackOrderAppearance, d3.area for SVG paths, d3-area-label for labels, and scales from d3.scaleTime and d3.scaleLinear. Data comes from a JSON file of all D3 commits, and hovering highlights individual layers while links open each repository on GitHub.
AI-generated descriptionThis is an experiment in visualizing D3 Git History. Each layer is a D3 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.
On the whole, one can see that development occurred in the original monolithic d3 repository from late 2010 to mid 2014. In late 2014 we see an explosion of packages, corresponding to the 4.0 release of D3. Since that great explosion, we see a big push on d3-delaunay in 2018, and ongoing development/maintenance work pretty evenly distributed across the various D3 packages.
This piece was created as a submission for D3 Parade 2021.
It was the starting point for the open source project: stamen/git-history-streamgraph.