Figure 5.18 Axonometric projections
Since the most widely used method of axonometric projection
is Isometric, we will only see isometric projection in detail.
5.3.1. Isometric Projection
To produce an isometric projection (Isometric means “equal
measure”), it is necessary to place the object so that its
principal edges or axes, make equal angles with the plane of
projection, and are therefore foreshortened equally. In this
position the edges of a cube would be projected equally and
would make equal angles with each other (120^0 ).