{"version":"1.0","type":"rich","title":"practice13 canvas","description":"This example demonstrates fundamental DOM manipulation with D3.js by rendering a full-screen smiley face whose eyebrows move. It uses an SVG canvas, with D3 selections and the `arc` generator from the d3-shape module to construct facial features. The code appends a background rectangle and relies on D3 v5’s `select` and `attr` methods to style elements dynamically based on the browser’s client dimensions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/91757d99b6b24f06a224ddd0328d9c0a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}