Abstract
This paper discusses the methodological approach that is being developed in the state of Bahia in Brazil since 2003, in architectural and urban sites documentation, using extensive digital technologies. Bahia has a vast territory with important architectural ensembles ranging from the sixteenth century to present day. As part of this heritage is constructed of raw earth and wood, it is very sensitive to various deleterious agents. It is therefore critical document this collection that is under threats. To conduct those activities diverse digital technologies that could be used in documentation process are being experimented. The task is being developed as an academic research, with few financial resources, by scholarship students and some volunteers. Several technologies are tested ranging from the simplest to the more sophisticated ones, used in the main stages of the documentation project, as follows: work overall planning, data acquisition, processing and management and ultimately, to control and evaluate the work. The activities that motivated this paper are being conducted in the cities of Rio de Contas and Lençóis in the Chapada Diamantina, located at 420 km and 750 km from Salvador respectively, in Cachoeira city at Recôncavo Baiano area, 120 km from Salvador, the capital of Bahia state, and at Pelourinho neighbourhood, located in the historic capital. Part of the material produced can be consulted in the website: < www.lcad.ufba.br>.
Highlights
This paper presents the methodological approach that is being developed since 2003, by LCAD - the Laboratory of Computer Graphics Applied to Architecture and Urbanism at the Architecture School of the Universidade Federal da Bahia through their work for document the architectural heritage in the Bahia state, in Brazil, using digital technologies [1]
The vast architectural collection stands out as one of the main aspects of the rich cultural heritage of Brazil, with important colonial assemblies, such as the ones found in the states of Bahia and Minas Gerais and the city of Parati in Rio de Janeiro, among others
Bahia has a set of preserved urban nuclei that encompasses five centuries of history of the New World, representing the various political moments, the economic and social changes that shaped the country, like the first possession and conquest of territory - represented by sets Porto Seguro, Santa Cruz de Cabrália, Salvador and Trancoso, The Sugar Cane and Tobacco Cycle - Cachoeira, São Felix and Maragogipe; the Gold Cycle, in the eighteenth century - Jacobina and Rio de Contas; The Diamond Cycle in the nineteenth century - Lençóis, Mucugê and Igatu [2,3]
Summary
This paper presents the methodological approach that is being developed since 2003, by LCAD - the Laboratory of Computer Graphics Applied to Architecture and Urbanism at the Architecture School of the Universidade Federal da Bahia through their work for document the architectural heritage in the Bahia state, in Brazil, using digital technologies [1]. As a result of the documentation project, it is generated a huge multimedia database containing information of buildings such as photographs, photographic panoramas, rectified photographs, orthophotos, technical drawings, various types of 3D geometric models, including point clouds, and other kind of data such as videos, audio tapes, interviews, reports, pictures and historical texts, among others All steps in this process involve the comprehensive and intensive use of digital technologies. ● Control and documentation of the project, in which should be analyzed in the various aspects involved in the project's implementation, as well as the assessment procedures used, and product quality grades, and indicators of income, essential to assist in the planning of future works This set of phases represents a scientific methodological approach for a documentation project in order to achieve best results and the best practices. In the development of these activities it is required a set of digital technologies in every related step
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