This example reproduces a Sol LeWitt art piece using D3.js. It shows a grid of horizontal and vertical lines rendered as SVG rectangles, with the pattern dynamically clipped by two circular masks to create a complex, layered composition. The code uses D3’s `select`, `range`, `symbols`, and `symbol` APIs to generate the shapes and paths. SVG masks are defined and applied to the line groups, with one mask inverted to produce the final visual effect. The rendering adapts to the browser window’s dimensions.