This line chart displays San Francisco temperatures over a week, using a smooth natural curve to connect daily data points. The visualization renders as SVG with React components, using D3 scales (scaleTime and scaleLinear) to map timestamps and temperature values. Axes are generated through custom React components, while the Marks component builds the line path and adds circular points with native SVG title tooltips. The data loads from a CSV file via d3.csv, and the chart includes labeled axes for Time and Temperature.