This example visualizes Iris flower measurements as a 3D scatter plot, displaying two species traces in the same interactive scene. The plot shows sepal length, width, and an additional dimension for each sample, using color and marker style to distinguish between groups. The code loads a CSV dataset with D3 and renders the three-dimensional chart using Plotly’s `scatter3d` trace type, with markers sized at 12 and a custom gray line color. The `Plotly.newPlot` API draws the scene inside a designated HTML division.