Geometric analysis on stone façades with terrestrial laser scanner technology
Corso Sarmiento, Juan Manuel | Roca Cladera, Josep | Buill Pozuelo, Felipe | Universitat Politècnica de Catalunya. Departament de Tecnologia de l'Arquitectura | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental | Universitat Politècnica de Catalunya. CPSV - Centre de Política de Sòl i Valoracions | Universitat Politècnica de Catalunya. EGEO - Enginyeria Geomàtica
Licensee MDPI, Basel, Switzerland. This article presents a methodology to process information from a Terrestrial Laser Scanner (TLS) from three dimensions (3D) to two dimensions (2D), and to two dimensions with a color value (2.5D), as a tool to document and analyze heritage buildings. Principally focused on the loss of material in stone, this study aims at creating an evaluation method for loss control, taking into account the state of conservation of a building in terms of restoration, from studying the pathologies, to their identification and delimitation. A case study on the Cathedral of the Seu Vella de Lleida was completed, examining the details of the stone surfaces. This cathedral was affected by military use, periods of abandonment, and periodic restorations.
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