Brown, Harold Haven, 1869-1932 · Chicago, Atkinson, Mentzer & company · leaf 147
will stand for outline.Mark point 5, S, which will stand for short diameter. In the second diagram note that our card has been turnedsideways, lying along the short diameter. Point O touches point3. Point S is on the short diameter below 4. Point 5 is markedon our card as L, which will stand for… … THE ELLIPSE AND SOME OFITS APPLICATIONS. THE ELLIPSE 139 must touch the short diameter; point O will then always indicatea point in the outline of the ellipse. A careful examination of thetwo remaining diagrams should make this clear. With a suffi-cient number of points, the ellipse may be drawn…
Drawing · Decoration and ornament
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