Projection can be any of: The display of an image by devices such as: Movie projector Video projector Overhead projector Slide projector Camera obscura Map projection, reduces a three-dimensional planet to a flat map (Geography) Graphical projection, the production of a two-dimensional image of a higher-dimensional object Orthographic projection, including: Plan, or floor plan view Elevation, usually a 'head-on' view of an exterior Section, a cutaway view of the interior Axonometric p… (More on Projection)