This example visualizes a scan path from eye-tracking data, showing the sequence and duration of fixations on an image. Red circles mark fixation points, with their radii proportional to fixation duration, while a thin red line traces the order of gaze movement between them. The visualization uses D3 v5 to load and parse a CSV file, then scales the x and y coordinates with `scaleLinear` to map fixation points onto the SVG canvas. Circles are drawn from the `MappedFixationPointX` and `MappedFixationPointY` fields, and a line path is generated with D3's `line` function to connect the points in sequence.