This example displays a line chart of temperature over time, with each day’s temperature connected by a smooth, natural curve. The visualization loads geographic data from the world-atlas TopoJSON file but renders only the time-series path, with axes labeled “Time” and “Temperature.” Built with React and D3 v5, the code uses `scaleTime` and `scaleLinear` for scales, `line` with `curveNatural` for the path, and custom `AxisBottom` and `AxisLeft` components to render ticks and labels. The data source is the Data Canvas Sense Your City dataset, though the mapping is not applied here.