{"version":"1.0","type":"rich","title":"illusions","description":"This example presents an optical illusion using overlapping vertical bars on an SVG canvas. The visualization shows a circular aperture in the center of the screen, created by masking a set of thin rectangles. The code uses raw JavaScript and the SVG API, constructing elements like `rect` and `circle` with `createElementNS`, and employs an SVG `mask` to reveal the bars only within the circular region. The result is a dynamic composition that highlights the interplay between geometry and visual perception.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ee6b12ea788043d6ba7cea7101087dcf?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}