A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 319
e or more of theirsurfaces directly behind another surface of the same size andshape. This would be the case if the projections of thecube, referred to in Art. 18, were drawn as shown in Fig. 22.When the cube is in a right position—that is, with two sur-faces horizontal, and that surface nearest… … Fig. 22 the front surface will be projected by the same lines of sightas the front surface. Therefore, in such a case, a projectionof the front surface of the cube is equivalent to a projectionof the entire cube. Each projection of the cube in the plan,front, and side elevations is a square, the…
