Point and Line
A point is the most basic of design elements. It can be defined as the smallest area of visual attraction in a composition. A single point can be used to divide a space and attract a viewer’s attention to a specific area.
A line is a visual element of length. It can also be defined as the path of point in motion. This definition is useful because it underscores the essence of line, which is movement; a line naturally creates a path for our eye to follow. Because a line always leads somewhere, its potential to suggest motion in fundamental. The photograph below illustrates this idea well. Notice how your eye moves through this image as it follows the line suggested by the water.
Ansel Adams – Sand Bar, Rio Grande