Documentation for the Preservation of Traditional agro-industrial buildings in N.W. Spain using simple close range photogrammetry

Abstract

Traditional agro-industrial buildings are an important part of the heritage of the Autonomous Region of Galicia (Northwest of Spain). Such heritage is nowadays in danger of disappearing. In order to preserve it, an exhaustive and rigorous work of documentation should be undertaken, as well as other actions.This paper shows the works of graphic and metric documentation undertaken by the authors with regards to a group of traditional agro-industrial buildings in Galicia. We used a method within the scope of close-range photogrammetry techniques (simple methods). The method is simple, cheap and accessible to people without specialised knowledge. The material used comprises low-cost conventional cameras, plumb lines and monoscopic digital photogrammetric stations. The accuracy of this method, assessed in comparison with topographic methods, turned out to be satisfactory for this type of buildings, for the most part of low height.