This visualization reproduces a geometric pattern using two overlapping circular masks to control the visibility of horizontal and vertical strips. The rendering relies on core SVG APIs, including `document.createElementNS` for constructing elements and `mask` definitions that hide or reveal rectangular bands across the canvas. One mask exposes a central circular region for the horizontal bars, while the inverse mask reveals vertical bars outside that circle. The result is a clean, intersecting grid pattern, implemented purely with JavaScript and SVG without external libraries.