Orthogonal projection {third angle projection} can be on top horizontal plane {plan projection, third angle}, front right vertical plane {front elevation, third angle}, and front left vertical plane {side elevation, third angle} {end elevation, third angle}. Front and plan projections are like looking into top front corner from outside room. This projection makes common edges closer and is usually better.
Mathematical Sciences>Geometry>Projections>Object Onto Planes>Orthogonal
3-Geometry-Projections-Object Onto Planes-Orthogonal
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0224