Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 255
Looking down—^-Looking up.Fig. 221 238 DESCRIPTIVE GEOMETRY [XI, § 199 development is drawn first, the pattern being worked out on theflat, so that they fit it perfectly and repeat or work out allaround as may be desired. For double-curved or warped surfaces, the decoration, ifgeometrical, may be… … Plan - looking up. Development of one halflarger voult. Fig. 222 representations, it is necessary to work on a three dimensionalmodel, either at scale or in full size, unless a satisfactory ap-proximate development (§§ 157 and 161) can be made. 200. To Show a Geometric Pattern on a Barrel Vault.…
Geometry, Descriptive
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