{"version":"1.0","type":"rich","title":"Untitled","description":"A force-directed particle system in SVG uses D3 v3’s `d3.layout.force` to simulate 200 circles with random radii, while a fixed center node applies a strong negative charge to repel others. A quadtree (`d3.geom.quadtree`) accelerates collision detection, and the layout’s `on(\"tick\")` event updates circle positions. Mouse movement drives the root node’s velocity via `d3.mouse`, resuming the simulation. The visualization runs in React, though the rendering logic is pure D3.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bf9af741eeaa4fee9d6468288dd99382?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}