This interactive visualization displays the classic Iris dataset using parallel coordinates, with each line representing a flower sample across four continuous measurements. The lines are colored by species, and a legend identifies the three classes. The visualization uses D3 v3’s `d3.svg.axis`, `d3.scale.ordinal`, and `d3.svg.line` to render the axes and polylines in SVG. Users can drag axes to reorder dimensions, and the foreground lines update dynamically while the background context lines are hidden during the interaction.