This example draws a generative interpretation of a Sol LeWitt wall drawing. It creates a grid of horizontal and vertical bars across the full browser window, with each bar masked by a large circular symbol. The piece uses D3.js APIs such as `select`, `range`, and `symbol` to construct the SVG output, applying two complementary masks that invert the visibility of the intersecting lines. The result is a dynamic, pattern-based composition that adapts to the viewer’s screen dimensions.