Fork of Line Chart with Multiple Lines
This line chart displays one week of temperature data for cities worldwide, sourced from Data Canvas - Sense Your City. The visualization plots temperature over time, using distinct colored lines for each city and a color legend for identification. It is rendered as an SVG using D3 v5, with the code employing `d3.scaleTime`, `d3.scaleLinear`, `d3.scaleOrdinal`, `d3.line`, and `d3.nest`. The `d3.axisLeft` and `d3.axisBottom` create labeled axes, while a custom `colorLegend` function generates the interactive legend.