{"version":"1.0","type":"rich","title":"svg fund","description":"A grid of 100 thin horizontal rectangles spans the full width of the viewport, but a circular mask reveals only the central portion of this striped pattern. The visualization demonstrates how SVG masks work by layering a white circle on a black background to selectively hide or show the underlying marks. Built with D3’s `select`, `range`, and `join` methods, the code appends rectangles with a shared `mask` attribute, then constructs the mask using SVG `mask` and `circle` elements. The data is a simple sequential range, and the circle is centered at half the window’s dimensions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c4a4112919e743fa9e77e46d5de9559e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}