ObliqueProjections
Introduction
An oblique projection is one of two major classifications of parallel
projection.
Oblique
projections
An oblique projection is the projection of an object in which the projectors
are other than perpendicular to the plane of projection. An oblique
projection shows front and top surfaces that include the three dimensions of
height, width, and depth. The front or principal surface of an object (the
surface toward the plane of projection) is parallel to the plane of projection.
Surfaces oblique to the plane of projection are not shown in their true size.
Oblique projections are superior to orthographic projections in pictorially
representing objects.
Figure 6-2 illustrates the angle of the projectors in oblique projection.
Figure 6-2.—Oblique projection.
Continued on next page
6-4
