This scatter plot visualizes the Iris dataset, displaying sepal length on the x-axis and petal length on the y-axis, with each point’s shape representing the species of iris. The implementation uses D3 v7’s `scaleLinear`, `scaleOrdinal`, and `symbolsFill` to map data values to positions and shapes, while `axisLeft` and `axisBottom` render the axes. A custom legend, built with `symbol().type()`, identifies each species by its corresponding shape. Data is loaded asynchronously from a CSV file and parsed using `csvParse`.