An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)
Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 851
a section of a hemisphere. Thisexample is applicable to the shadow of a cylindrical niciie with a hemispherical head. Theline NN shows the sliadow of the portion of the head, and the remainder is obtained bythe mere intersection of lines in the direction of the light from different points to the… … mouidmgs of the pediment at itsapex. In tlie section, ab drawnfrom the projection a of the coronain the direction of the light, de-termines the point b therein, where-from the horizontal line interceptedby the line ab in the elevation, alsodrawn jjarallel to the direction oftlie light, gives the…
Architecture · Architects
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