Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 64
If the line be a right line, this is generally bestaccomplished by finding the shadows of eachend of the line and joining them. If the linebe curved, then the shadows of several pointsof the line must be obtained. In Figs. 108 and 109 cb is an oblique linehaving one extremity, c, in H. By… … 48 DESCRIPTIVE GEOMETRY 69. To determine the shadow of a solid upona given surface it is necessary to determine theshadows of its shade lines. When it is diffi-cult to recognize which lines of the object areits shade lines, it is well to cast the shadow ofevery line of the object. The outline of…
Geometry, Descriptive
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