Gothic architecture in France, England, and Italy (1915)
Jackson, Thomas Graham, Sir, 1835-1924 · Cambridge, University Press · leaf 50
24 THE GOTHIC VAULT [CH. II The groin-ing line Let us take first an example of a cross-vault overa square bay of moderate size, say that of the crypt atWinchester which is about 14/X14/. The four equalbounding arches are represented by A, B, C, D in Fig. 4,of which one A, E, B is set up in… … fV Fig. 4. the groins will lie true in a straight line between ACand DB. On the base AC we set up the elevationof the diagonal groin, of which the crown M will ofcourse be level with E. The curve of the oroin is foundby what are called ordinates. The direct arch A, E, B,which is the true section of…
Architecture, Gothic
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