This reusable D3.js scatter plot animates through four columns of a weather dataset, cycling the x-axis every two seconds. Built with D3 6.7.0 and following the “Towards Reusable Charts” pattern, it uses `scaleLinear`, `extent`, `axisLeft`, `axisBottom`, and `select` to render SVG marks with a custom `shapePath` that maps weather summaries to distinct geometric shapes. The plot is displayed full-window and refreshes live as the data mapping changes.