IV. Continuity - a Gestalt principle of grouping that states that when two or more elements are aligned, they group forming an implied line (a continuation). In Figure 1, the alignment of organic shapes creates an implied curved line. In Figure 2, two aligned shapes, although separated by numerous shapes between, form an implied straight line across the picture plane. Figure 3 shows a continuation formed by only one side of several shapes. Continuations, along with other actual or implied lines, form a composition's linear structure.
Figure1	Figure2
Figure3