A Sol LeWitt-inspired generative drawing uses D3 to compose horizontal and vertical hairlines that are selectively revealed through two SVG masks. The artwork demonstrates algorithmic line placement and masking with d3.select, d3.range, d3.symbol, and SVG mask elements for layered visual density. The piece runs in the browser, rendering to an SVG canvas sized to the window, and uses two masks populated with varied path symbols to create contrasting positive and negative space.