Fork of Fork of D3 Git History Streamgraph
This streamgraph visualizes commit activity across D3 repositories, with layer thickness representing smoothed weekly commit counts and vertical order reflecting each repository’s introduction date. It reveals the monolithic early development, the 4.0 package explosion in 2014, and later concentrated work on d3-delaunay. Built with D3 v6, it loads JSON data of all D3 commits, applies array-blur smoothing, and uses d3.stack, stackOffsetWiggle, and stackOrderAppearance to generate layered areas, with d3-area-label positioning labels. An SVG envelope backdrop and interactive hover effects highlight repository layers.
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.