This example creates a full-screen interactive grid of horizontal and vertical bars overlaid with circular masks. The visualization uses D3’s `select` and `range` to generate 100 thin rectangles along each axis, producing a crosshatch pattern. Two SVG masks hide all but a central circular area, revealing the intersecting lines within the circle against a blank background. The code relies on D3’s data join (`join('rect')`) to bind array values to SVG elements, demonstrating a declarative approach to building static geometric compositions.