{"version":"1.0","type":"rich","title":"Untitled","description":"This example shows a time-series line chart of cumulative road-building progress, with circles marking each data point. Hovering over a circle reveals a tooltip with the total kilometers built and displays dashed guide lines that extend to the axes. The visualization uses D3.js v3 APIs such as `d3.svg.line`, `d3.time.scale`, and `d3.svg.axis`, with data parsed from a CSV file via `d3.csv` and `d3.time.format`. The SVG is rendered in React, and interactivity relies on `mouseover` events and D3 transitions for the tooltip.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d376613dff404ac694f59efc6e46e916?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}