Final answer:
A surface that always appears as a foreshortened surface, never as a line, on the six regular places of a projection is classified as perspective projection.
Step-by-step explanation:
A surface that always appears as a foreshortened surface, never as a line, on the six regular places of a projection is classified as perspective projection.
Perspective projection is a technique used in art and computer graphics to create the illusion of depth and three-dimensionality on a two-dimensional surface. It is commonly used in paintings, drawings, and virtual reality applications.
Unlike orthographic projection, which is used in technical drawings to represent objects accurately and without distortion, perspective projection creates a more realistic and visually appealing representation of objects by taking into account the way they appear to the human eye.