The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 407
ween a and/, as z, and fromthis, as also from a corresponding point, n, draw the rays, i r andn s; from r, and from d^ erect the perpendiculars, r s and do;through the points, e, s, and o, trace the curve as shown in thefigure ; then the extent of the shadow vrill be defined. 519.— To find the… … Fig. 360. 520.—To find the shadows on the capital of a column. Thismay be done according to the principles explained in the examplesalready given ; a quicker way if doing it, however, is as followsIf we take into consideration one ray of light in connection withall those perpendicularly under and…
Carpentry · Architecture
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