Clipping is the process of removing graphics that are outside the viewing area. There are different types of clipping including point, line, area/polygon, curve, and text clipping. Line clipping algorithms like Cohen-Sutherland and Liang-Barsky use line endpoints and intersection calculations to determine which portions of a line are inside the clip region. Polygon clipping algorithms like Sutherland-Hodgman and Weiler-Atherton process polygon vertices and edges to generate clipped polygon areas. Curve and text clipping also use bounding areas and intersection calculations to clip complex graphical elements.