{"version":"1.0","type":"rich","title":"jmbv Fork of Hello VizHub","description":"This example demonstrates D3.js SVG masking by drawing two sets of overlapping horizontal and vertical rectangles, each clipped by circular masks to reveal a central circular window. The code uses `d3.select` and `d3.range` to generate 100 rectangles per axis, with one mask using a black background and white circle, the other inverted. The visualization fills the browser viewport using `window.innerWidth` and `window.innerHeight`, producing a dynamic grid-like pattern visible only within the overlapping masked region.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5a43ff4ad5804586bcbbfb131caaeb32?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}