In Engineering Drawing, the auxiliary view in orthographic projection is a method that projects the view onto any plane that is different than the six main planes. The auxilary view is used when there is some kind of inclined plane in the object being projected. Using this type of view is great for allowing the inclined plane to be viewed as it's correct shape and size. Using this projection, the
. Line of Site, also known as LOS, is what allows the object and inclined plane to be view in it's correct shape and size.
