Line

A line is an identifiable path created by a point moving in space. It is one-dimensional and can vary in width, direction, and length. Lines often define the edges of a shape. Lines can be horizontal, vertical, or diagonal, straight or curved, thick or thin. They lead your eye around the composition and can communicate information through their character and direction.

Examples:




Horizontal lines suggest a feeling of rest or repose because objects parallel to the earth are at rest. In these landscapes, horizontal lines also help give a sense of space. The lines delineate sections of the landscape, which recede into space. They also imply continuation of the landscape beyond the picture plane to the left and right.



Vertical lines often communicate a sense of height because they are perpendicular to the earth, extending upwards toward the sky. In this canyon, the rope forming the vertical line suggests ascension, rising beyond human reach toward the heavens since its terminus cannot be determined.



Horizontal and vertical lines used in combination communicate stability and solidity. Rectilinear forms with 90-degree angles are structurally stable. This stability suggests permanence and reliability.



Diagonal lines convey a feeling of movement. Objects in a diagonal position are unstable. Because they are neither vertical nor horizontal, they are either about to fall or are already in motion.

In a two-dimensional composition, diagonal lines can also indicate depth through perspective. These diagonal lines pull the viewer visually into the image. For example, in this photograph the diagonal lines lead the eye into the space to the point where the lines converge.



The curve of a line can convey energy. Soft, shallow curves recall the curves of the human body and often have a pleasing, sensual quality and a softening effect on the composition. The highlights on the pipes of this motorcycle pull the eye through the composition.



When repeated, lines can create a pattern. Patterned lines also give the image rhythm.