This visualization reproduces a Sol LeWitt wall drawing using D3.js, rendering a grid of horizontal and vertical lines that intersect to form a subtle pattern across the full browser viewport. The piece relies on two SVG masks—one circular and one rectangular—to selectively reveal or hide portions of the line arrays. Specifically, a path generated via `symbol(symbols[1],100000)` creates a large circular mask over the vertical lines, while a black circle mask obscures the horizontal lines in a contrasting region. The code uses D3’s `select`, `range`, and `join` APIs to efficiently append hundreds of SVG rect elements, with all rendering performed client-side in SVG format.