This example reproduces a Sol LeWitt geometric artwork as a generative drawing in SVG. It divides the canvas into four quadrants, each rendered with a distinct pattern of thin rectangular bands, using masks to crop horizontal, vertical, and rotated line groups. The code relies on D3’s `select` and `range` functions to create 100 repeating rectangles per section, with each pattern defined by explicit SVG `mask` elements. Rectangles are positioned and rotated via attributes like `transform`, with dimensions fixed to the viewport.