This example visually recreates a Sol LeWitt wall drawing using only horizontal and vertical black lines, shaped by custom masks to form large geometric symbols. The piece uses D3.js (v6) with SVG rendering, generating 100 line groups across the canvas width and height. Two masks, one inverted, apply distinct patterns of D3’s built-in `symbols` (like circles and squares) to cut the lines, revealing positive and negative spaces. The code relies on `select`, `range`, `symbol`, and `join` from D3 to construct the composition dynamically.