But mathematicians define symmetry in a more specific way. They describe the repetition of forms as movement in space, and distill symmetry and pattern into a set of laws that operate on an abstract level. A 2-dimensional motif can repeat in only four different ways. Inc. Folk Art, p.49 Decorations displaying exclusively rotational symmetry often occur in folk arts. Old Native American pottery has decorations with a wealth of rotational-only symmetry.
Artists use patterns more intuitively and expressively.
We'll also observe that these elements of design can form patterns, and the effects these patterns produce on the viewer. Design Elements Line Lines can exhibit many different traits. This drawing by Steinberg shows a regular repetition of straight lines. The smooth undulating lines of this Japanese woodcut create an atmosphere that is natural, harmonious and decorative. Shapes Shapes are visually perceived areas of value, color or line and any combination of angular and curvilinear configurations.