{"version":"1.0","type":"rich","title":"Circle and Ellipse","description":"A gallery of geometric primitives demonstrates the visual difference between circles and ellipses through a series of steelblue shapes arranged within a black rectangular frame. The example uses D3 v5’s `select`, `append`, and `attr` methods to construct SVG circles and ellipses, varying their radii, widths, and heights to show horizontal, vertical, and near-circular forms. Each shape is manually positioned with explicit `cx`, `cy`, `rx`, and `ry` coordinates, providing a clear static reference for how scaling one axis transforms a circle into an ellipse.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/091fc890a8794dfeb4d4ad6d3bfc3ade?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}