View article

Several visualization methods for eye tracking data exist to help researchers from many disciplines depict data collected in eye tracking experiments. Focusing on eye tracking data from observations of cartographic lines, in this paper we propose a new visualization of eye tracking data using polylines inferred from the analysis of samples. This visualization depicts the “average” line that is actually seen by subjects; such a line can be useful in the study of various optical representation concepts, such as the assessment of the effects of alternative cartographic line attributes, distractions, abstraction levels and more, as well as in other cases such as the study of visual computer interfaces.