{"version":"1.0","type":"rich","title":"A6 Barchart D3","description":"This example visualizes the percentage of smokers in the United States from 1980 to 2012 using a vertical bar chart. Each bar’s height and color encode the recorded percentage value, with a sequential blue color scale mapped via `d3.scaleSequential` and `d3.interpolateBlues`. The chart includes axes, labels, a title, and a legend generated with the `d3-legend` library’s `d3.legendColor`. Data is loaded from a CSV file and rendered as SVG using D3 v7, with tooltips provided by appended `<title>` elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1b775dc24d75437382d3eec42e8bbfee?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}