{"version":"1.0","type":"rich","title":"parse with d3 practice","description":"A circle tracks the user’s mouse movements across a full-window SVG canvas, updating its center position in real time. Built with React 16.9 and D3 v7, the app uses a `useState` hook to store mouse coordinates and a `useCallback` handler to capture `clientX` and `clientY` from the SVG’s `onMouseMove` event. The circle’s `cx` and `cy` attributes are bound directly to that state, with a fixed radius of 30 pixels. No external data is loaded; the visualization purely demonstrates interactive event handling and state-driven rendering.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3a4184c309094fac9f4d37fd1ee935a3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}