Oblique projection is a type of parallel projection used in technical drawing and architectural design to represent three-dimensional objects on a two-dimensional surface. Unlike orthographic projection, where the projection lines are perpendicular to the projection plane, oblique projection employs projection lines that are angled relative to the projection plane. This technique allows for a more natural and intuitive representation of an object's depth and shape. In oblique projection, one face of the object is typically drawn in true size and shape, while the other faces are distorted. The most common types of oblique projection are cavalier projection, where the receding lines are drawn at a 45-degree angle, and cabinet projection, where the receding lines are drawn at a 63.4-degree angle, resulting in a foreshortening effect. Oblique projection is widely used in various fields, including engineering, product design, and architectural drafting, as it provides a clear and easily understandable representation of an object's form and dimensions. It is particularly useful for illustrating objects with rectangular or cylindrical shapes, as well as for showcasing the internal structure or mechanisms of a design. Interestingly, oblique projection has been used for centuries, with early examples dating back to ancient Chinese and Japanese art, where it was employed to depict three-dimensional scenes on two-dimensional scrolls.
Parallel projection, technical drawing, architectural design, three-dimensional representation, cavalier projection, cabinet projection, engineering drafting
Oblique projection is a type of parallel projection used in technical drawings, cartography, photography, and cinematography. In this projection, the object is rotated along two of its axes, and the projection plane is not perpendicular to the object, resulting in an oblique angle. The angle can either be chosen arbitrarily or based on the angles of the object's axes. The projected object appears distorted, but this distortion can be minimized by choosing appropriate angles for the projection. Oblique projection is commonly used in technical drawings and diagrams to represent three-dimensional objects, as it gives the viewer a better understanding of the object's orientation. It is also used in cartography to represent the surface of the Earth, where it is known as an oblique Mercator projection. In photography and cinematography, oblique projection is used to produce a three-dimensional effect on a two-dimensional image, creating a sense of depth and dimensionality. One of the advantages of oblique projection is that it allows the viewer to see multiple faces of an object simultaneously, providing a more complete understanding of its shape and structure. This makes it particularly useful for technical drawings and diagrams, where accuracy and clarity are essential. Additionally, oblique projection can be used to create visually interesting and dynamic images in photography and cinematography, adding depth and dimensionality to otherwise flat images. However, oblique projection also has some limitations. The distortion created by the projection can make it difficult to accurately measure distances and angles, which can be problematic in technical drawings and diagrams. Additionally, the choice of projection angle can greatly affect the appearance of the projected object, making it important to choose appropriate angles for the specific application. Overall, oblique projection is a useful tool for representing three-dimensional objects in a two-dimensional space, providing a more complete understanding of their shape and structure. While it has some limitations, it can be a valuable technique in a variety of fields, including technical drawing, cartography, photography, and cinematography.
parallel projection, technical drawing, cartography, oblique Mercator projection, photography, cinematography, distortion, shape, structure, accuracy
Oblique projection is a type of orthographic projection, which is a parallel projection of a three-dimensional object onto a two-dimensional plane. It is a type of axonometric projection, where the object is rotated along two of its axes. The projection plane is not perpendicular to the object, thus creating an oblique angle. This angle can either be chosen arbitrarily or be based on the angles of the object's axes. As a result, the projected object appears in a distorted form. It is commonly used to represent three-dimensional objects in technical drawings and diagrams, as it gives the viewer a better understanding of the object's orientation. It is also used in cartography to represent the surface of the Earth. Oblique projection is also used in photography and cinematography, where it is used to produce a three-dimensional effect on a two-dimensional image.
Perspective, Axonometric, Orthographic, Oblique Angle, Distortion.
CITATION : "Kenneth Harris. 'Oblique Projection.' Design+Encyclopedia. https://design-encyclopedia.com/?E=246194 (Accessed on May 06, 2025)"
We have 216.484 Topics and 472.443 Entries and Oblique Projection has 3 entries on Design+Encyclopedia. Design+Encyclopedia is a free encyclopedia, written collaboratively by designers, creators, artists, innovators and architects. Become a contributor and expand our knowledge on Oblique Projection today.