Question

In oblique projections, the projectors are perpendicular to each other but are not parallel to the plane of projection.

(a) True

(b) False

The question was posed to me in an interview.

I would like to ask this question from Oblique Projection in portion Development of Surfaces, Isometric Projections, Perspective Projections & Transformation of Projections of Civil Engineering Drawing

Answer 1

Right choice is (b) False

Easy explanation: Oblique projection is a type of parallel projection:

• It projects an image by intersecting parallel rays (projectors)

• From the three-dimensional source object with the drawing surface (projection plane).

In both oblique projection and orthographic projection, parallel lines of the source object produce parallel lines in the projected image. The projectors in oblique projection intersect the projection plane at an oblique angle to produce the projected image, as opposed to the perpendicular angle used in orthographic projection.