Graphics Reference
In-Depth Information
Figure 13-11:
Aggregation in the form of a 2D or 3D spatial field is a
useful technique for track data and scales well for large data sets. Here,
ship position reports are plotted using a luminance scale, revealing the
relative frequency of routes.
Summary
This chapter covered various strategies for effective visualization of spatial
networks, including schematic layout, link rose summaries, grouping of
small worlds, and track aggregation. Each of these techniques is useful for
a certain type of data and not appropriate for others. For example, small
world grouping is appropriate for a graph that includes clear small world
phenomenon, and a link rose diagram is appropriate for a graph with flow
across many internal links.
