PRIN. OF DRAFTING AND SHOP DRAWINGS - OD1641 - LESSON 1/TASK 1
f. Lines. The projection of lines between views follows directly from the point
projection theory. If we consider the axiom:
To a draftsman, a line is a visible line that connects two or more points.
It follows then that lines may be projected by projecting the points that define
them.
Figure 9 presents the problem of finding a right side view when the front and top
views are given.
FIGURE 9.
LINE PROJECTION PROBLEM.
Figure 10 (on the following page) is the solution and was arrived at by the
following:
Step 1.
Projecting point 1 into the right side view.
Step 2.
Projecting point 2 into the right side view.
Step 3.
Connecting points 1 and 2 with an object line.
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