{"version":"1.0","type":"rich","title":"Untitled","description":"A simple bar chart visualizes population data from the United Nations Population Prospect 2017. The example primarily demonstrates a custom tooltip implemented with D3 v4, attaching mouseover, mousemove, and mouseout events to a circle element. The tooltip is a styled HTML div that appears near the cursor, displaying formatted text and an image. The SVG circle acts as a static placeholder, while the tooltip logic showcases event handling and dynamic positioning using the D3 selection API.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3fd6f1a7292c4ad980286afa6e5a9554?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}