Orthographic Projection

Orthographic projection, also called orthogonal projection and historically known as analemma, is a technique for representing three-dimensional objects in two dimensions using parallel projection in which every projection line is perpendicular to the projection plane, so that every plane in the scene undergoes an affine transformation onto the viewing surface. It differs from oblique projection, whose parallel projection lines are not perpendicular to the projection plane. In multiview projection, the term often refers specifically to views in which an object's principal planes or axes are parallel to the projection plane, producing the primary views known as plans, elevations, and sections, while views in which the principal planes are not parallel to the projection plane are instead classified as axonometric or auxiliary views, including isometric, dimetric, and trimetric projections; optically, an object-space telecentric lens can produce an orthographic projection. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/