{"version":"1.0","type":"rich","title":"Fork of HTML Starter Follow Along","description":"This visualization displays a grid of thin horizontal and vertical rectangles, with a circular region in the center revealed by two mask layers. The first set of horizontal strips and vertical strips are generated using `d3.select`, `d3.range`, and the `.join` method to create SVG `rect` elements. Two SVG masks—one with a white circle on black, the other with a black circle on white—are applied to create the central circular aperture, resulting in an intersecting crosshatch pattern.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3ea5b768125b456b99f3b061445e9a8b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}