{"version":"1.0","type":"rich","title":"Blank Canvas","description":"This visualization presents a blank, rounded rectangle filling the entire viewport, sized to match the browser window’s dimensions. The example serves as a minimal D3.js canvas setup, demonstrating how to establish an SVG coordinate space that adapts to the screen. Built with D3 v5, the code uses the `select` function to target the SVG element and `append` to add the rectangle shape. The fixed CSS positioning and hidden overflow ensure the canvas remains flush with the viewport edges, creating a pure foundation for subsequent drawing operations.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d348ab5d96194362813b395faaea4341?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}