Orthographic projection and true size in Spanish stonecutting manuscripts
Author
Calvo López, JoséKnowledge Area
Expresión Gráfica ArquitectónicaPublication date
2003-01Publisher
Instituto Juan de HerreraBibliographic Citation
CALVO LÓPEZ, Juan. Orthographic projection and true size in Spanish stonecutting manuscripts. En: International Congress on Construction History (1º: 2003: Madrid). Procedings of the first International Congress on Construction History: Madrid: 20th-24th January 2003. Madrid: Instituto Juan de Herrera, 2003. Pp. 461- 471. ISBN 84-9728-070-9Keywords
Manuscritos españoles de canteríaJerga arquitectónica
Tallas a tamaño natural
Geometría descriptiva
Plantillas flexibles
Cantería
Bóvedas
Cerramientos
Trazas de montea
Spanish stonecutting manuscripts
Arquitectoning jargon
True size
Flexible templates
Stonecutting
Stonework
Vaults
Descriptive Geometric
Abstract
Stonecutting treatises, from the Renaissance to the
Enlightenment, classify dressing methods in two
broad areas. Both are named mainly after masons'
tools: the square -équarrissement, escuadría,
dérobement, robos- and the template -panneaux,
plantas. However, the significance of these categories
lies mostly in the geometrical notions they stand for;
the square is applied when tracings make use of the
orthographic projection, usually double, whereas the
template is used where geometrical constructions
provide true-size representations of the sides of the
dressed stones. Thus, both methods are related to key
concepts in Descriptive Geometry, the double
orthographic projection for the square and
developments and rabattements for the templates.
This is not surprising, if we take into account that
Gaspard Monge, the founder of Descriptive
Geometry, was Professor of Theory of Stonecutting
in the Ecole de Génie at Mézieres (Monge 1799,4;
Loria ] 92] :84-91; Taton 1954, 17-20; ...
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