VISUALIZATION FOR CHANGES IN RELATIONSHIPS BETWEEN HISTORICAL FIGURES IN CHRONICLES - Information Visualisation: Techniques, Usability and Evaluation - page 149

Automatic and dynamic graph layout algorithms based on a force-
directed model [4] are adopted to visualize the structures of networks. This
model considers a graph to be a physical system. Attractive forces in the
force-directed model are exerted on all pairs of connected nodes, and
repulsive forces are exerted on all pairs of nodes.
Users can select and drag nodes to change their positions to check
details of linkages between nodes. Moreover, we can zoom and pan the
canvas to change the region being focused on.

AD 1573 AD 1615

TOKUGAWA
Ieyasu

ODA Nobunaga

Viewpoint1
䟺 Battle 䟻

TOKUGAWA
Hidetada

ODA Nobunaga

Timeline

Emperor Qgimachi

TOKUGAWA
Ieyasu

Viewpoint2
䟺 Gift 䟻

TOKUGAWA
Hidetada

TimeSlice

Figure 8.3. Comparing networks of people related to “Battle” and “Gift” in 1573
and 1615.