Planimetric and Metrological Review of the Romanesque Cathedral of Jaca

The Cathedral of Jaca is one of the most representative buildings of Spanish Romanesque art and its geometrical and metrological study contributes to the knowledge of its constructive origins. Based on the compilation of historical documentation from different authors, together with the updated digital survey of the interior and exterior of the temple, it is proposed to update the existing planimetry. In addition, by comparing the historical drawings and the cad planimetry produced after redrawing the graphic information obtained from the digital survey, it is possible to corroborate the proportions used in the design of the church. Consequently, the metrological information will favour the understanding of the different construction phases thanks to the analysis of the different elements that make up the temple through the study of the geometry, the proportions and the modulation to which the architects who participated in its construction subjected the space.