Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 142
tinguished by capital letters, as A, B, etc., while their horizontalprojections are represented as <2, b., etc., and their vertical projections as «, b\ etc. ; by this means we are enabled to dis-tinguish the plan from the elevation. v.P. will also be used toexpress the vertical plane, and h.p.… … Fig. 246. INTRODUCTION 129 It is not necessary to have an object to trace ; if we knowits dimensions, and its distances from the two planes, we canconstruct the plan and elevation as shown in Figs. 244 and 246. Figs. 243 and 245 are perspective views, and Figs. 244 and 246are geometrical drawings…
Geometrical drawing · Design · Drawing
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