An interactive scatterplot demonstrates dynamic filtering of 200 random points using radio buttons to select preset filter modes: none, center, edges, or quadrants. Built with D3 v7, it uses scaleLinear for axes and axisBottom/axisLeft for rendering. Clicking a radio button applies a transition to recolor points based on geometric conditions relative to the midpoint (500, 500), highlighting central clusters, edge outliers, or quadrant-specific groups with schemeCategory10 colors, while rendering via SVG circles.