{"version":"1.0","type":"rich","title":"exemple promesses","description":"This example shows a radial stacked bar chart of US state population data broken down by seven age groups, using a circular layout with labeled segments and a legend. The visualization is rendered in SVG using D3 v5, with a `d3.scaleBand` for angular positioning and the `d3-scale-radial` library for radial scales. Data is loaded from a CSV file via `d3.csv`, and the stacked bars are generated with `d3.stack` and `d3.arc`. The chart includes circular gridlines, state labels, and a color-coded legend.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6ffef3b4b75a4ba2929256649fc23cb5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}