Views, ContinuedRevolutions(Continued)When you revolve a view perpendicular to the profile plane of projection, theaxis appears as a point. The size and shape of the side view remain thesame. The width of the object remains unchanged and you can transferdistances with a scale or dividers.Figure 3-49 shows a 45-degree revolution perpendicular to the profile plane.Figure 3-49.—A revolution 45 degrees tothe profile plane.You can find the true length of any line easily by means ‘of a revolution.Figure 3-50 illustrates finding the true length of any line by revolution.Figure 3-50.—The true length of any line in arevolution.Continued on next page3-55
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