What are the types of graphical projection?

Graphical projection is a design technique used to display three-dimensional objects on a two-dimensional plane using geometric, optical, or mathematical methods. Major categories include parallel projections, such as orthographic and oblique projections, which map objects using parallel lines. These techniques are widely applied in engineering, technical drawing, computer graphics, and historical art.

What we know

• Graphical projection displays a 3D object on a 2D plane by mapping and connecting points to create a visual element that appears solid. [3]
• Orthographic projection is a form of parallel projection where all projection lines are orthogonal to the projection plane. [4]
• Oblique projection is a parallel projection in which the projection lines are not orthogonal to the projection plane. [1, 4]
• Isometric projection is an axonometric projection where the three coordinate axes appear equally foreshortened with 120-degree angles between them. [5]

Where to go next

• a case in pointHow does orthographic projection work?
• how it workedWhere is oblique projection used?
• compared withWhat is isometric projection?
• the bigger pictureHow do 3D projections function in computer graphics?
• whenHow did French military artists utilize cavalier projection?
• an unexpected connectionWhy did Chinese artists historically favor oblique projection?Oblique projection was used almost universally by Chinese artists from the 1st or 2nd centuries to the 18th century to depict rectilinear objects like houses.

Sources

• [1]oblique projection (Wikidata Q14551923) · CC0 1.0
• [2]Oblique projection · CC BY-SA 4.0
• [3]3D projection · CC BY-SA 4.0
• [4]Orthographic projection · CC BY-SA 4.0
• [5]Isometric projection · CC BY-SA 4.0