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ISPRS Int. J. Geo-Inf. 2018, 7(8), 318; https://doi.org/10.3390/ijgi7080318

A Methodology for Planar Representation of Frescoed Oval Domes: Formulation and Testing on Pisa Cathedral

1
Civil and Industrial Engineering Department (DICI), University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
2
DA–Dipartimento di Architettura, Alma Mater Studiorum Università di Bologna–Bologna, Viale del Risorgimento, 2, 40136 Bologna, Italy
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 8 June 2018 / Revised: 24 July 2018 / Accepted: 3 August 2018 / Published: 7 August 2018
(This article belongs to the Special Issue Data Acquisition and Processing in Cultural Heritage)
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Abstract

This paper presents an original methodology for planar development of a frescoed dome with an oval plan. Input data include a rigorous geometric survey, performed with a laser scanner, and a photogrammetry campaign, which associates a high-quality photographic texture to the 3D model. Therefore, the main topics include the development of geometry and, contextually, of the associated textures. In order to overcome the inability to directly develop the surface, an orthographic azimuthal projection is used. Starting from a prerequisite study of building methodology, the dome is divided into sectors and bands, each linked with the maximum acceptable deformations and the actual geometric discontinuities detectable by the analysis of Gaussian curvature. Upon definition of the development model, a custom automation script has been devised for geometry projection. This effectively generates a (u,v) map, associated to the model, which is used for model texturing and provides the planar development of the fresco. View Full-Text
Keywords: frescoed vault; planar representation of vault; cultural heritage documentation frescoed vault; planar representation of vault; cultural heritage documentation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Piemonte, A.; Caroti, G.; Martínez-Espejo Zaragoza, I.; Fantini, F.; Cipriani, L. A Methodology for Planar Representation of Frescoed Oval Domes: Formulation and Testing on Pisa Cathedral. ISPRS Int. J. Geo-Inf. 2018, 7, 318.

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