Barcino 3D is a project that seeks to unify archaeological knowledge, allowing the formal definition of Barcelona at the end of the third century, designed for the dissemination of archaeological heritage to all types of public, through a set of interactive applications for web, smartphones and tablets (IOS and Android).
This article defines the methodologies used for the virtual construction of Barcino and its territory, based on a procedural construction and Geographic Information Systems (GIS), allowing to propose different approaches of the city. In this process, archaeological information is organized based on rule-base modeling and database management, with multiple levels of information, at different scales: territorial, urban and architectural. These models are optimized to the different platforms, to transmit knowledge and direct visualization between the present Barcelona and the colony of Barcino at the end of the III century.
Corso, J.M.; Garcia-Almirall, Pilar; Lopez, D.; Casals, J. IOP Conference Series: Materials Science and Engineering num. 245, p. 1-11 DOI: 10.1088/1757-899X/245/5/052092 Data de publicació: 2017 Article en revista
In a context of web application in the field of the dissemination of cultural heritage, this article advances in a methodology for the optimization of points clouds obtained through the technology of Laser Scanner (TLS). Identifying the potential of TLS surveys as interactive models that allow the cultural heritage to be perpetuated over time.
This point cloud optimization is developed with free software, focusing its exploitation on an interactive web application, which has made it possible to convert two temporary museum exhibitions into permanent exhibitions in virtual format. Developed in conjunction with the Museu d’Història de la Ciutat de Barcelona. The case study focuses on the Palau Reial Major, Gothic style, formed by the chapel of Santa Àgata (built in 1302, on the Roman wall) and Saló del Tinell (built between 1359 and 1370, on the Roman remains). Located in the Plaça del Rei, in the old town of Barcelona. In this application is very important the visual impact, it requires to represent a faithful model of the interior of the building, from the point of view of color and lighting, avoiding the
transparencies of the model through a dense cloud of dots, without occlusions, this requires a great quantity of positions. This implies a clear methodology, using different techniques such as photographic proyection, given the complexity of lighting of the building, as much for the artificial lighting as for the lighting of the stained glass. In this process, there were 84 positions that provide greater density of points, which are optimized with free programs. The temporary exhibitions of the case studies, elaborated by the MUHBA in the Saló del Tinell are: "Indianas, 1736-1847. The origins of industrial Barcelona" exposed from May 19, 2012 to March 3, 2013 and "El Món del 1714"exposed from December 20 to September 28, 2014. Both are based on a tour with showcases and exhibitors where different objects of a museum character are shown, such as looms, cloths, dresses, books, among others, accompanied by panels with texts and images that contain the information that each exhibition shows. Virtual applications allow such temporary exposures to become an interactive model, in which information can be permanently consulted. A virtual tour where the user can interact with the information panels and observe in detail the different objects of the exhibition. The results of this work manage to generate a powerful mechanism of diffusion and approximation to the society of the cultural heritage that, otherwise, as a whole as exhibition would disappear.
Aixacament amb escàner làser de l'Església Santa Àgueda (Barcelona), església i sal d'accés. Desenvolupament de models de núvols de punts editables. Desenvolupaments d'App web, partint de la plataforma potree.
Corso, J.M.; Muñoz, F.; Garcia-Almirall, Pilar; Gracia, C.; Casals, J.; Martinez, J. Congreso Iberoamericano de Geomática y Ciencias de la Tierra p. 183-195 Data de presentació: 2016-10-26 Presentació treball a congrés
For maintenance needs, conservation and restoration, it has been requested by the Board of the SagradaFamilia, the study of the methodology and development to carry out the full three-dimensional model of the original part of the temple (the façade of the Birth, and the adjacent towers and chapels) and metric documents, including those who have to emphasize the architectonics planes, the digital orthomosaic of the different planes, and a full high-resolution surface model. The uniqueness of this façade is that it is an about 12 meters thick irregular element with spaces inside, which can be walked across most its outside spaces and inside the towers at different levels.
High accuracy surveying methods are used for this project, which must be used as a basis to generate the necessary support network, considering that the topographic bases must be placed throughout all the façade, inside the temple, at different levels and in positions with good visibility.In the methodology they are considered combined methods of laser scanning and high resolution photogrammetry, which can generate equivalent and complementary point clouds.The areas that the laser scanner can’t reach, photogrammetry is used, and vice versa.Job success is due to a good coordination and planning of the various phases to execute (photographic shots, Terrestrial Laser Scanning, topographic bases distribution and support points, etc).
This project is currently being carried out and the first results have been obtainedwholly satisfactory and above the highest expectations. The results have been point clouds of 2mm resolution for the sculptures and 5mm resolution for the architectural set made with the Terrestrial Laser Scanning technology, 5mm orthophotos with fotogrametry and a 3D mesh.