A generative geometric composition mirrors a Sol LeWitt wall drawing, displaying a grid of horizontal and vertical striped rectangles on an SVG canvas. The primary visual effect is a circular white mask that reveals only the horizontal lines within its radius, while the vertical lines remain fully visible across the entire viewport. Built with D3 v6, the code uses `select`, `range`, and `join` to create 100 rectangles per axis, with `window.innerWidth` and `window.innerHeight` defining the responsive full-screen dimensions.