Tommaso  Ingrassia, Francesco  Di Paola, Mauro  Lo Brutto, Antonio  Mancuso, Vincenzo  Nigrelli, 
    New Algorithms to Evaluate the Real Shape of a Hull,
    Journal of Engineering and Applied Sciences,
    Volume 13,Issue 7,
    2018,
    Pages 1638-1643,
    ISSN 1816-949x,
    jeasci.2018.1638.1643,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2018.1638.1643)
    Abstract: In this study, a new method to compare rebuilt surfaces of hulls of sailing yachts is presented. In
particular, the considered rebuilt surfaces are created through classic reverse engineering approaches. The new
method has been developed by means of Grasshopper, a free generative algorithms editor that can be used as
plugin of Rhinoceros, one of the most widespread free-form modelling software. In particular, two different
algorithms have been developed: the first one allows controlling the quality of the rebuilt surfaces, the second
one, instead, allows to measure the deviations between the original CAD Model and the rebuilt surface of the
hull. A case study related to the hull of a small sailing yacht is also presented. The obtained results have
demonstrated the efficiency of the new proposed low-cost method.
    Keywords: Low-cost reverse engineering analysis;close range photogrammetry;CAE tools;sailing yacht;generative algorithms;CAD Model