This visualization is an interactive parallel coordinate plot of the classic Iris dataset, showing four floral measurements (sepal and petal length/width) as linked axes. Lines represent individual flowers, colored by species (setosa, versicolor, virginica), with a hover effect that highlights one species while dimming others. Built with D3.js v4, the example uses `d3.scalePoint` for axis positioning, `d3.line` to generate the polylines, and `d3.drag` for interactive axis reordering. Users can click and drag axis labels to swap their positions, with the plot updating in real time. The SVG renderer handles the paths, axes, and text labels.