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[Audio] AUXILIARY VIEWS Sometimes it is desirable the true shape and dimensions of an irregular surface which inclined to one or more of principal planes of projection. In this case a view must be projected on to a plane which is parallel to the surface in question. This plane is called an auxiliary plane and the view projected on to this plane is called an auxiliary view. There are two kinds of auxiliary views: primary and secondary.
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[Audio] With " Multiview or Three View Projections," we learned to describe an object with views on the three regular planes of projection. These are the top, or horizontal plane; the front, or vertical plane; and the side, or profile plane. With these planes, you can solve many graphic problems..
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[Audio] PRIMARY AUXILIARY VIEWS When the auxiliary plane is incline to four of the six principal planes of projection and square with the other two, the view so obtained is termed primary auxiliary view. TYPES OF PRIMARY AUXILIARY VIEWS An auxiliary view must be projected from the principal view which provides the edge view of the irregular face. Hence there are basically three types of auxiliary views: 1. The view obtained when the edge view of the irregular face is shown on the front ( or rear view.).