{"version":"1.0","type":"rich","title":"practice question for midterm","description":"This example shows a network of interconnected nodes that drift and collide in a two-dimensional space, with each node rendered as a small circle and links drawn as straight lines between connected points. The visualization uses D3’s `forceSimulation` to compute the physics of node movement, including charge repulsion and link constraints, while the `forceCollide` behavior prevents overlapping circles. The data comes from an embedded JavaScript array of nodes and links defined in the page source, and the code relies on D3 v3.5.5’s `d3.select` and `d3.force` APIs to update positions and draw the SVG elements in each animation tick.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-24aa21e91286e9a920ac?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}