Figure 4 in Visual Comparison for Information Visualization

Figure 4: Sequence Surveyor [2, 3] uses juxtaposition to compare aligned genomic sequences. Each row represents the sequence of genes of an organism. Homologs (groups of matching genes) are assigned the same color. Colors are assigned based on the position of genes in the reference genome (indicated by the green rectangle). In such a juxtaposition design, each object (here a row representing a genome) is displayed independently: the viewer must make the connections between objects. In contrast, Figure 7 shows similar data in a design where the connections are explicitly encoded.