Perspective projection
Perspective projection is a type of drawing that graphically approximates on a planar (two-dimensional) surface (e.g. paper) the images of three-dimensional objects so as to approximate actual visual perception. It is sometimes also called perspective view or perspective drawing or simply perspective. A perspective projection drawing must be made according to an established geometric protocol.
- See linear perspective for a discussion of one-point, two-point and three-point perspectives.
- All perspectives on a planar surface have some degree of distortion, similar to the distortion created when portraying the earth's surface on a planar map. See perspective projection distortion for a discussion.
The following terms are basic to understanding the drawing protocols of a perspective projection.
- Cone of vision
- Picture plane
- Vanishing point
- Station point
- Eye level
- Horizon
- Linear perspective
- Curvilinear perspective
- Reverse perspective
Also see: Perspective projection distortion, Perspective (visual), Perspective distortion