This parallel coordinate plot displays the classic Iris flower dataset, visualizing 150 samples across four measurements (sepal and petal length and width). Each flower species (setosa, versicolor, virginica) is drawn as a colored polyline using D3’s `line()` generator, with colors mapped via `scaleOrdinal`. The axes are interactive: dragging any vertical axis reorders the dimensions, and the lines and axes animate smoothly using a custom `transition` that applies a five-millisecond duration. The visualization is rendered as SVG, with axis labels and a legend for the three species.