Orthographic Projections, Continued
To help understand the view of an object, you may assign a number to each
of the corners. A corner point may be hidden or visible in a particular view
of the object. Hidden corner points are numbered inside the objects outline;
visible corner points are numbered outside the outline.
Figure 6-30 shows an object with a hidden and visible numbered corner
Figure 6-30.Corner point numbering.
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