{"version":"1.0","type":"rich","title":"Bubble Chart with Tooltips Using D3","description":"This bubble chart uses D3 v7 to visualize bike station locations in the Bay Area, mapping latitude and longitude to axes, dock counts to bubble size, and cities to categorical colors from `d3.scaleOrdinal`. A legend, built with the d3-legend library, identifies city colors. Interactive tooltips, styled via CSS and positioned with mouse events, display the total bike count and city name for each aggregated data point. The chart renders as SVG and loads data from a remote CSV using `d3.csv`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/15d8c26c7796406483e87cb5b6754481?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}