ABSTRACT
Line is an extremely important visual component because it communicates visual intensity and is also critical to the visual components of space, shape, movement, and rhythm. Any line can be revealed or hidden depending on its tonal relationship with the background. People see lines around the borders of two-dimensional objects. This is called edge. Primary points of interest in a picture can cause the viewer to add imaginary lines between the points. Creating these imaginary lines is called closure. The closure creates a triangle and a diagonal line. Many objects have an invisible line or axis that runs through them, which can be perceived as a line. Track is the path of a moving object. As any object moves, it creates a track or line. There are two types of tracks: actual and virtual. Lines can create contrast or affinity in three ways: orientation, direction, and quality.
