This example shows an animated scatterplot that reproduces a Sol LeWitt art piece. It uses D3 v6 to render SVG circles whose positions are derived from data, with a transition that animates the radius of newly entering points from zero to a set size. The code builds reusable plotting components—scales, axes, and container groups—and uses the `d3.transition()` API, which is visible as `t = d3.transition().duration(1000)` and applied to enter/update/exit joins. The x and y axes are linear scales from the data’s extent, and the chart updates in place, though no external data source is specified.