oblique projection
Technical term in geometry, drafting, and computer graphics for a type of parallel projection where the projection lines are not perpendicular to the projection plane.
Oblique projection is one method of representing a three-dimensional object on a plane.
Perspective projection, which simulates depth with vanishing points, while oblique projection is a parallel projection without perspective.
Compound of 斜 (しゃ, 'oblique') and 投影 (とうえい, 'projection'). The term is a direct calque from English 'oblique projection'.