Testing | 2008-2016
A multi-line chart displays daily temperature readings in Celsius for multiple cities over one week, with each city distinguished by color and a legend identifying them. The visualization uses D3 v5 APIs including `scaleTime`, `scaleLinear`, `scaleOrdinal`, `axisBottom`, `axisLeft`, `line` with `curveBasis`, and `nest` to group data by city. Data comes from the Data Canvas – Sense Your City dataset, loaded via `csv` and rendered as SVG paths with a color legend built from a custom `colorLegend` module.