Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 261
, in elevation: The points 1 and 5 can be determinedby drawing the projections of the rays of light tangent to the ele-vation. Since the shade line is symmetrical on either side of theline MN in plan, the points 3 and 7 can be found from 1 and 5, bydrawing horizontal lines to the axis. The points 4… … The highest and lowest points in the shade line, 2 and 6, canbe fonnd only by use of plan. It is not necessary, as a rule, todetermine accurately points 2 and G. The shade line in plan willbe, approximately, an ellipse whose center is o. The ends of themajor axis E, and S, are determined by the…
Architecture · Building · Carpentry
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