{"version":"1.0","type":"rich","title":"Activity 8 Question 6","description":"This example presents a collapsible tree visualization of muscle car models, showing a hierarchy from “Muscle Cars” down to specific variants like the Hellcat and SRT. It uses D3 v3’s `d3.layout.tree` to compute node positions, with SVG shapes for nodes and links, and includes animations for expanding and collapsing branches on click. The code also implements tooltips and color-coded node types, with zoom and drag behavior via `d3.behavior.zoom`. Data is loaded from a static JSON file, and the rendering leverages SVG elements and jQuery for tooltip visibility.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e3cf65df892d44b8b1a961b176323318?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}