Oblique projection
（重定向自Cavalier projection）
![](/Images/godic/202501/03/Axonometric_projection.svg0751.png")
![Comparison of several types of graphical projection. The presence of one or more 90° angles is usually a good indication that the perspective is oblique.](/Images/godic/202501/03/Graphical_projection_comparison0751.png")
![Oblique projection with foreshortening by half, seen from the side.](/Images/godic/202501/03/Oblique_projection_yz.svg0751.png")
![](/Images/godic/202501/03/Perspective_cavaliere_exemple_piece_revolution.svg0751.png")
- This article discusses the imaging of 3D objects. For an abstract mathematical discussion, see Projection (linear algebra).
Oblique projection is a simple type of technical drawing of graphical projection used for producing two-dimensional images of three-dimensional objects. The objects are not in perspective, so they do not correspond to any view of an object that can be obtained in practice, but the technique does yield somewhat convincing and useful images.