{"version":"1.0","type":"rich","title":"Fundamentals3","description":"The visualization shows a screen-filling grid of 100 horizontal bars, each 20 pixels apart, layered over the full viewport. Using D3’s `select` and data join, it renders SVG `rect` elements with dynamic height and width attributes. The code prepares circle-shaped masks, though they are not applied at runtime, leaving the bars plain. This example demonstrates fundamental D3 SVG rendering and data binding, with dimensions derived from `window.innerWidth` and `window.innerHeight`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8869069a47bc471f9cca6bec4a468234?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}