The angular theme is composed of a series of angled lines that work together to create an active and eye-catching design composition (Figure 10—57). This system of lines and forms can produce a very dynamic composition, even though it is a difficult theme to develop. At first glance, the angles drawn in Figure 10—57 may seem to be randomly drawn. But a closer examination reveals that most lines are parallel, perpendicular, 45 degrees, or 60 degrees to the back of the house. When using this theme, it is suggested that a system of guidelines that are 0, 45, 60, and 90 degrees in relation to the face of the house be used (Figure 10—58). If a system of guidelines is not used, too many different angles are apt to be used, causing the composition to seem uncontrolled and chaotic.
There is one other suggestion when developing an angular theme. Mostly obtuse angles (angles greater than 45 degrees) should be used; acute angles should be avoided. This will alleviate the possibility of drawing a composition that would create problems in using and maintaining the design (Figure 10—59).
The angular design theme offers an extremely bold and dynamic design system. It has a rugged character and fits appropriately in areas that have irregular or abrupt
topography with rock outcrops and boulders. For example, this theme relates well to the desert Southwest with its rugged landscape.